Overview
This unit is about fitness: what it is made of, how games build it, and how to measure and improve your own. You first separate the two families of fitness. Health-related fitness (heart and lung endurance, muscular strength and endurance, flexibility and body composition) keeps you healthy. Motor or skill-related fitness (speed, agility, balance, coordination, reaction time and power) helps you play well. Then a series of team games builds these qualities while teaching something about the mind and the group: a crawling relay that rewards time management, a rock-paper-scissors race that trains quick decisions, a modified triathlon of dribbling, balancing and crawling, a passing game that shows which muscles work, a crab-position relay for the core muscles and gravity, an inclusive target-throwing game adapted for children with disabilities, kick volleyball for foot-eye coordination, and a ropeless tug of war that brings out cooperation and the danger of social loafing. A tag game called Swasthya Daud shows how unhealthy food and lack of exercise slow metabolism. You then learn to calculate the Body Mass Index and read the classification of underweight, normal, overweight and obesity. Finally, you test yourself with standard fitness tests, record a baseline, set realistic goals and retest to see your progress.
हिंदी में पढ़ें
यह इकाई बताती है कि फिटनेस किन चीज़ों से बनती है और खेल के माध्यम से उसे कैसे बढ़ाया जाए। आप फिटनेस के दो परिवार सीखते हैं: स्वास्थ्य से जुड़ी फिटनेस जैसे सहनशक्ति, शक्ति और लचीलापन, और मोटर फिटनेस जैसे गति, चपलता, संतुलन, समन्वय और प्रतिक्रिया समय। क्रॉल टू द फ्रंट, रॉक-पेपर-चैंपियनशिप रन, किक वॉलीबॉल और बिना रस्सी की रस्साकशी जैसे टीम खेल इन गुणों को बढ़ाते हैं और साथ ही समय प्रबंधन, तेज़ निर्णय, समावेशन और सहयोग सिखाते हैं। स्वास्थ्य दौड़ दिखाती है कि भोजन और व्यायाम चयापचय को कैसे प्रभावित करते हैं। आप अपना बॉडी मास इंडेक्स निकालना भी सीखते हैं, और अंत में अपनी फिटनेस का परीक्षण करके लक्ष्य तय करते हैं और अपनी प्रगति जाँचते हैं।
Learning Objectives
- Distinguish health-related fitness components from motor (skill-related) fitness components with examples.
- Play each game of the unit safely and explain which fitness component it develops.
- Identify the core muscles and explain how they work against gravity to hold a position.
- Explain social loafing and social facilitation and why every member's effort matters in a team.
- Adapt a game so that children with disabilities can take part fully.
- Explain how food choices and physical activity affect metabolism and energy.
- Calculate Body Mass Index and interpret it using the standard classification.
- Perform basic fitness tests, record a baseline, set a goal and measure progress.
Topics in this chapter
12 topics · tap a topic title to jump straight to it.
Physical fitness and motor fitness: the components
1Think first
2The idea, in plain words
Physical fitness is the ability to carry out daily tasks with energy and alertness, without getting tired too quickly, and still have energy left for play and emergencies. Its components fall into two families.
Health-related fitness keeps the body healthy and lowers the risk of disease:
- Cardiovascular (cardio-respiratory) endurance: how long the heart and lungs can supply oxygen during continuous activity, such as a long run or cycle ride.
- Muscular strength: the greatest force a muscle can produce once, as in lifting a heavy bucket.
- Muscular endurance: how many times, or how long, a muscle can keep working, as in many push-ups or holding a plank.
- Flexibility: the range of movement at a joint, as in touching the toes.
- Body composition: the proportion of fat to muscle, bone and water in the body.
Motor fitness (skill-related fitness) helps you perform skills well in sport:
- Speed: moving quickly from one point to another (a 50 m sprint).
- Agility: changing direction quickly with control (dodging in kho-kho).
- Balance: keeping the body steady, still or moving (standing on one foot, walking a beam).
- Coordination: using body parts together smoothly, often with the eyes (hitting a moving ball).
- Reaction time: how fast you respond to a signal (a sprinter leaving the blocks).
- Power: strength used quickly (a standing broad jump, a smash).
The two families support each other. A kabaddi raider needs endurance to last the match, strength to break free, agility to dodge, and quick reactions to escape a tackle. Every game in this unit trains several components at once, and in the final assessment you will measure most of them with simple tests.
How to use this knowledge: when you play any game, ask, ‘Which components is this training?’ When you test yourself, look for your weakest component and give it extra practice. For safety, build up gradually: endurance with a little more running each week, strength with body-weight exercises, and flexibility with gentle stretches after a warm-up. Fitness built slowly lasts; fitness forced quickly brings injuries.
- Health-related fitness: cardiovascular endurance, muscular strength, muscular endurance, flexibility, body composition.
- Motor (skill-related) fitness: speed, agility, balance, coordination, reaction time, power.
- Power = strength applied with speed.
3Worked example
- Badminton uses reaction time, agility and power for smashes.
- A 600 m run/walk tests cardiovascular endurance.
- The sit-and-reach test measures flexibility of the lower back and hamstrings.
4Your turn
Which of these is a motor (skill-related) fitness component?
5Remember this
Crawl to the Front: agility and time management
1Think first
2The idea, in plain words
Crawl to the Front is a relay in which the team moves forward by crawling under each other's legs. Teams of about ten stand one behind another at the starting line, an arm's distance apart, feet spread wide enough to make a tunnel. On the whistle, the last student drops down, crawls through the tunnel of legs to the front, stands up an arm's length ahead of the line and shouts ‘Next!’. The new last student then crawls through, and so on. Because each crawler finishes in front, the whole line creeps forward until every member has crossed the finish line. The first team across wins.
The game trains several things at once:
- Agility: dropping to the ground and getting up again quickly.
- Coordination: moving opposite hand and knee together in the crawl.
- Muscular endurance of shoulders, arms, core and thighs.
- Teamwork and communication: a clear ‘Next!’ and a steady tunnel make everyone faster.
The circle-time theme is time management, which simply means using time well. Ask: where was time lost? Usually it is not the crawling but the gaps: a slow drop to the ground, a crawler who stands up too close and blocks the tunnel, or a late start because the call was not heard. Small fixes save seconds: crawl low on hands and knees with the head down, stand up only after your feet are clear of the last person, step a full arm's length forward, and shout loudly. Your team can try two or three ways of crawling and time each run to find the best.
Safety and fair play:
- Play on grass, a mat or a clean, smooth floor; check for stones first.
- Those making the tunnel keep their legs still and wide; never close the legs on a crawler.
- Crawlers keep the head tucked to avoid bumping a knee.
- No pushing or jumping the queue.
The same idea of time management applies off the field: break a big task into steps, find where time is being wasted, and fix one step at a time.
- Rule: the last person crawls through to the front and calls ‘Next!’; the line moves forward until all cross the finish.
- Time management: find where time is lost, change one thing, and time again.
3Worked example
- A team improves from 75 seconds to 58 seconds by telling crawlers to stand a full arm's length ahead.
- Kho-kho teams practise smooth handovers the same way: wasted time is usually in the change-over.
- Before an exam, a student lists the steps of revision and cuts the time spent deciding what to study next.
4Your turn
In Crawl to the Front, which student starts crawling after the whistle?
5Remember this
Rock-Paper-Championship Run: reaction and decision-making
1Think first
2The idea, in plain words
Rock-Paper-Championship Run joins the hand game rock-paper-scissors with running. A path of hula hoops or markers is laid on the ground, straight or zig-zag, with the same number on each half. The second-to-last hoop at each end is marked with a different colour; this is the scoring hoop. Two teams line up at opposite ends.
How to play:
- On the start, the first player of each team runs forward, hopping or stepping into each hoop.
- Where the two players meet, they play one round of rock-paper-scissors (rock beats scissors, scissors beat paper, paper beats rock).
- The winner keeps moving forward along the hoops. The loser runs back to the end of their own team's line.
- As soon as a player loses, the next player of that team sets off to challenge the advancing opponent.
- A player who reaches the coloured scoring hoop on the opponents' side scores a point. Both teams then reset and a new round begins.
The game develops speed, agility (feet moving accurately through the hoops), reaction time and quick decision-making. The loser's team must react instantly: the faster the next runner sets off, the closer to home they meet the opponent and the less ground is lost.
The circle-time theme is perception: noticing and interpreting what is happening. What affects the result? Some factors are under your control: how quickly you start, how cleanly you move through the hoops, how alert your team is. Some are chance: the hand game itself. Good players control what they can. They also notice patterns; for instance, some opponents repeat the same choice when under pressure.
Safety: hoops should be laid flat on grass or a non-slip floor, and players step in the centre of each hoop to avoid tripping on the edge. Leave space at the ends so that returning losers do not crash into the next runner. Keep the hand game to one quick round; no arguing over the result. Losing a round is part of the game, and running back with a smile shows good sportsmanship.
- Rock beats scissors, scissors beat paper, paper beats rock.
- Winner moves forward; loser returns to the end of their team's line; reaching the second-to-last hoop scores a point.
3Worked example
- A team that keeps its next runner crouched and ready meets the opponent near its own hoops and loses little ground.
- A cricketer at the non-striker's end must decide in a split second whether to run, much like reacting to a lost round.
- Players who watch their opponent's habits in the hand game sometimes win more often.
4Your turn
What happens to the player who loses a round of rock-paper-scissors?
5Remember this
Modified Triathlon: agility, balance and coordination
1Think first
2The idea, in plain words
A real triathlon joins three sports: swimming, cycling and running. The school Modified Triathlon keeps the idea of three stages in one race, but the stages test skill instead of endurance.
Course: a start/finish line and a 10 m zig-zag of cones.
- Stage 1, dribble: dribble a football with the feet through the zig-zag, keeping it close.
- Stage 2, balance on the head: pick up a light object (a piece of cardboard, an old notebook or a school bag) and walk back towards the start balancing it on your head. If it falls, stop, replace it and continue.
- Stage 3, crawl: place the object on your back and crawl on hands and knees towards the finish without letting it fall.
- At the end, drop the object, pick up the football, run back and pass it to the next teammate. All teammates take a turn; the first team to finish wins.
Each stage trains a different motor-fitness component:
| Stage | Main component | Key technique |
| Dribble | Agility, foot-eye coordination | Small touches with the inside and outside of the foot; body low on turns |
| Head balance | Balance, posture | Head level, chin in, eyes ahead, short smooth steps |
| Crawl with object | Balance, core control, coordination | Flat back like a table, move opposite hand and knee together |
The circle-time theme is introspection: looking honestly at your own performance. Which of the three stages was your best? Which needs most practice? Speed matters, but so does precision: a dropped object costs more time than walking a little slower. Many students find that trying hard at every stage with full control gives them a real sense of happiness, even if they are not first.
Safety: use only light, soft objects (never anything heavy or sharp); keep the crawling area free of stones; leave space between teams; dribble with control so the ball does not fly into other lanes. Children who find crawling difficult can do the third stage walking while balancing the object on a flat palm.
- Three stages: dribble the zig-zag, balance an object on the head, crawl with the object on the back.
- If the object falls, stop and replace it before moving on.
- Precision first, then speed.
3Worked example
- Women in Indian villages who carry water pots on their heads use the same balance principles: head level, steady small steps.
- A footballer dribbling past defenders uses small touches and a low body, as in Stage 1.
- A student realises her dribbling is strong but her head balance is weak, and practises walking with a book on her head at home.
4Your turn
What should you do if the object falls off your head in the Modified Triathlon?
5Remember this
Pass, Sit and Score: passing skills and muscle involvement
1Think first
2The idea, in plain words
Pass, Sit and Score is a fast passing game for teams of six. Each team has a small goal (two cones or a mini goal) at its end of the field.
How to play:
- Five players stand in a straight line, an arm's distance apart. The sixth, the passer, stands in front facing them with the ball, with the goal behind the passer.
- The passer throws the ball to the first player, who catches it, returns it and immediately sits down.
- The passer then throws to the second player, who returns it and sits, and so on down the line.
- When the last player returns the ball, the passer turns and kicks it at the goal.
- Players rotate so that everyone has a turn as passer. The team with the most goals wins.
Sitting down makes it clear who has played, and it adds strategy: the passer must throw accurately to a player further and further away.
The circle-time theme is muscle involvement. Feel which muscles do each part of the action:
| Action | Main muscles |
| Chest pass (two hands) | Pectorals (chest), triceps, front of the deltoids |
| Overhead or one-arm throw | Deltoid, triceps, latissimus dorsi (back), core |
| Catching and absorbing the ball | Biceps, forearm muscles, shoulders |
| Sitting down and standing up | Quadriceps, gluteus maximus, hamstrings |
| Kicking at goal | Quadriceps (straightens knee), hip flexors, core for balance |
Technique tips: for a chest pass, hold the ball with fingers spread, thumbs behind, elbows out, then step forward and push the arms straight, finishing with thumbs pointing down. To catch, show your hands as a target, watch the ball into them and bend the elbows to ‘give’ with it. To kick, place the non-kicking foot beside the ball and strike with the inside of the foot for accuracy.
Safety: pass only when the receiver is looking and ready; use a soft ball; sit down carefully, not by dropping; and kick only when no one is standing in front of the goal. Judge your skill by counting how many passes in a row are caught cleanly.
- Rule: catch, return the pass, sit; after the last return, the passer turns and kicks at goal.
- Chest pass: fingers spread, step, push, finish with thumbs down.
- Catching: hands as a target, eyes on the ball, elbows bend to absorb.
3Worked example
- Netball and basketball players use the chest pass for fast, accurate short passes.
- Kicking at goal straightens the knee using the quadriceps, the same muscle that straightens the knee when you climb stairs.
- A team speeds up by passing to the chest height of each receiver, so no one has to stretch or bend to catch.
4Your turn
Which muscle is mainly used to straighten the knee when kicking a ball?
5Remember this
Crab Crawl Ball Relay: core muscles and gravity
1Think first
2The idea, in plain words
The core is the group of muscles around the trunk that holds the spine and pelvis steady and passes force between the arms and legs. The main core muscles are the rectus abdominis (the ‘six-pack’ muscle at the front), the external and internal obliques (at the sides, for twisting and bending sideways), the transverse abdominis (a deep belt-like layer), the quadratus lumborum (deep in the lower back, beside the spine) and the multifidus (small muscles along the spine). A strong core improves balance and posture, makes every throw and kick more powerful and protects the lower back.
In the Crab Crawl Ball Relay, teams of about ten form a line, every player in the crab position: sitting, then lifting the hips so that only the hands (behind the body, fingers pointing towards the feet) and the feet are on the ground, with the belly facing upwards. The last player holds the ball. On the start signal, the ball is rolled under the bodies from one player to the next, each player passing it on without leaving the crab position. When the ball reaches the front player, that player picks it up, runs to the back, gets into the crab position again and starts the ball rolling once more. The relay ends when the original first player is back at the front.
Why it is hard: gravity. Gravity pulls the hips down towards the ground all the time. To keep the hips lifted, the gluteals, hamstrings, back muscles, shoulders and triceps must work continuously, while the core keeps the trunk from sagging or twisting. This kind of work, holding a position without moving, is called isometric (static) muscle work. The lower your hips drop, the more gravity wins.
Technique and safety:
- Hands shoulder-width apart, fingers pointing towards the feet, to protect the wrists.
- Feet flat and hip-width apart, knees bent at about 90°.
- Keep the hips level; breathe normally, do not hold your breath.
- If your wrists hurt, rest on the floor briefly and continue; students with wrist problems can play sitting.
- Play on grass or mats.
To check progress, time how long you can hold a level crab position; try again after two weeks of practice.
- Core muscles: rectus abdominis, external and internal obliques, transverse abdominis, quadratus lumborum, multifidus.
- Isometric (static) work: a muscle works without changing length, holding a position against a force such as gravity.
- Crab position: hands and feet on the ground, belly facing up, hips lifted level.
3Worked example
- A fast bowler's core transfers force from the run-up into the arm action.
- Holding a plank or a crab position is isometric work: muscles work hard but the body does not move.
- Weak core muscles often lead to a slouched sitting posture and lower back ache.
4Your turn
Which muscle is the deep ‘belt’ around the abdomen?
5Remember this
Hitting Running Target: coordination, anticipation and inclusion
1Think first
2The idea, in plain words
The Hitting Running Target Game is based on a traditional Indian target game, updated for today. A rectangular playing area is marked with 6-10 markers. A roller stands at one end and rolls a large ball (the target) between two parallel lines. The throwers stand to the side of the lane, 5-10 metres away. The roller calls ‘gool-gool’ (or ‘going-going’) as the ball sets off. When the target passes in front of them, the throwers try to hit it with smaller balls such as tennis balls. A fielder at the far end stops the target ball and returns it to the roller once all thrown balls have been collected.
The game trains hand-eye coordination and object control, but the real skill is anticipation: you must throw at where the ball will be, not where it is now. A rolling ball keeps moving while your ball is in the air, so you aim ahead of it. This is called leading the target, and it is used by fielders throwing at the stumps, footballers passing to a running teammate and goalkeepers diving.
Safety rule that must never be broken: no one enters the lane to fetch balls until the teacher or roller gives the ‘OK’ signal. Throwers stay behind their line, throw only at the target and never at a person, and use soft balls.
Inclusion. A good game lets everyone play. For children with disabilities (often called CWSN, children with special needs) the rules can be adapted:
- For a student with limited vision, use a ball with a bell inside so the target can be heard, and let a partner call the timing.
- For a student with limited grip strength, allow rolling the ball or an underhand throw.
- A student using a wheelchair can be a thrower at a closer distance or the roller.
These changes do not make the game ‘easier’; they make it fair, so that each player faces a real challenge suited to them. In circle time, talk about which adaptations worked, and set a personal goal: for example, three hits out of ten next session, up from one.
Good sportsmanship: cheer good throws by any team, admit misses honestly and do not boast about hits.
- Anticipation: aim where the target will be, not where it is now.
- Safety rule: retrieve balls only after the ‘OK’ signal.
- Inclusion: change equipment, distance or method so every player has a fair challenge.
3Worked example
- A fielder running in to throw at the stumps aims slightly ahead of where the batter is running.
- In blind cricket in India, a ball with ball bearings inside lets players track it by sound.
- A student with weak grip rolls tennis balls along the ground and still hits the target.
4Your turn
When should players collect their thrown balls in this game?
5Remember this
Kick Volleyball: foot-eye coordination and teamwork
1Think first
2The idea, in plain words
Kick Volleyball takes the idea of volleyball but replaces the hands with the feet. It is close to sepak takraw, a sport played in South-East Asia and in India's north-east, and to the foot-volley games boys and girls play in parks.
How to play:
- Two teams of 5-6 players stand on either side of a net or rope set low, about 2-3 feet (60-90 cm) high.
- The ball is kicked over the net to start a rally.
- Each team may touch the ball up to three times before sending it over, just like volleyball. Players may use feet, knees, thighs or chest, but not hands or arms.
- A point is won when the ball lands in the opponents' court, or when they kick it out or into the net.
- Play for 10-15 minutes, changing teams or ends every 5 minutes for fairness. Variations include a different net height, a ‘keep it up’ challenge, or scoring as many points as possible in a fixed time.
Skills:
- Foot-eye coordination: watching the ball onto the foot.
- Agility and balance: standing on one leg while the other kicks.
- Teamwork and communication: call ‘Mine!’ to avoid two players going for the same ball, and use the three touches to set up an attack.
Technique: for control, use the inside of the foot (the flat part, like a football pass) with the ankle locked, and kick gently upwards rather than hard. Bend the standing knee slightly. To cushion a dropping ball, raise the thigh and let the ball drop on it, then on to the foot. A three-touch pattern that works well: first touch to control, second to lift the ball high near the net, third to kick it over into an empty space.
Safety: warm up hips, hamstrings and calves first (lunges, butt kicks); keep kicks below head height so you never kick near another player's face; call for the ball loudly; do not climb on or pull the net; play on grass or a soft surface. Control matters more than power: a wild kick loses the point and can hurt someone.
In circle time, share which techniques and strategies worked and how your team handled the hardest moments, such as a long losing streak.
- Rule: up to three touches per side; no hands or arms.
- Control kick: inside of the foot, ankle locked, gentle upward lift.
- Safety rule: keep kicks below head height and call for the ball.
3Worked example
- Sepak takraw players in Manipur use the same three-touch idea with a cane or plastic ball.
- A team that always calls ‘Mine!’ avoids collisions and keeps rallies going longer.
- Using the thigh to cushion a high ball, then the inside of the foot to lift it, sets up an easy third touch.
4Your turn
How many touches may a team use before sending the ball over the net in Kick Volleyball?
5Remember this
Ropeless Tug of War: strength, cooperation and social loafing
1Think first
2The idea, in plain words
In Ropeless Tug of War the team itself becomes the rope. Two teams of equal numbers, matched by height and weight, face each other across a centre line, standing about one foot (30 cm) from it. Each player holds the waist of the teammate in front. The two front players grip each other's forearms near the elbows. On the whistle, both teams pull, using body weight and leg strength, trying to pull the opposing front player across the centre line. The chain must stay connected; a team whose chain breaks loses the round. Variations: a circle version (pull the other team out of a circle), a timed version (who holds their ground longest), and mixed-strength teams for inclusion.
Technique: pull with the legs, not the arms. The legs are far stronger than the arms. Lean back, bend the knees, keep the feet apart for a wide base, and push into the ground as if walking backwards. Arms stay mostly straight and act like hooks. Much of the muscle work is isometric: muscles working hard while the body hardly moves, as when you push against a wall. Compare pushing a wall with holding a water bottle at arm's length for a minute: both tire you even though nothing moves.
Safety:
- Teams must be evenly matched in size and strength.
- Pull steadily; never jerk, and never let go suddenly, because the other team will fall backwards.
- Hold the waist or sides, never the neck or clothes.
- Play on grass; remove watches and bangles. Stop at once on the whistle.
Cooperation and social loafing. A team wins only when everyone pulls together at the same moment. Psychologists describe social loafing: people tend to put in less effort in a group than when working alone, because they feel their effort will not be noticed. The opposite effect, social facilitation, is that many people perform better when others are watching. In tug of war, one ‘loafer’ makes the whole chain weaker. Good teams prevent loafing with a rhythm call (‘one-two-PULL’), by giving each player a clear role, and by noticing and praising effort.
In circle time, honestly ask yourself: did I give my full effort? Did anyone hold back, and how did it affect the result?
- Technique: lean back, bend the knees, wide base, pull with the legs and body weight.
- Social loafing: less effort in a group than alone. Social facilitation: better performance in front of others.
- Safety rule: matched teams, steady pull, no jerks, no sudden letting go.
3Worked example
- A school team adds a captain's rhythm call and wins more rounds because everyone pulls together.
- In a group project, one member does almost nothing because they think no one will notice: that is social loafing.
- An athlete runs a personal best in front of a cheering crowd: social facilitation.
4Your turn
What is social loafing?
5Remember this
Swasthya Daud: food, exercise and metabolism
1Think first
2The idea, in plain words
Metabolism is the sum of all the chemical processes in the body, including how it turns food into energy and uses that energy. Even at rest, the body uses energy to breathe, pump blood, keep warm and repair cells; this is the basal metabolic rate. Physical activity adds much more energy use on top. Muscle tissue uses more energy than fat tissue even at rest, so active people with more muscle tend to use more energy all day.
Two lifestyle habits work against a healthy metabolism: unhealthy food (lots of sugar, fried snacks, packaged chips and sweet drinks, which give energy without much nutrition) and avoiding exercise (long hours sitting with screens). When more energy is eaten than used, the extra is stored as fat, the person may feel sluggish, and over years the risk of obesity, type 2 diabetes and heart disease rises. Regular activity and balanced meals of grains, dal, vegetables, fruit, milk or curd, and some nuts keep energy steady.
Swasthya Daud (health run) turns this into a tag game. A large circle of cones is divided into a playing zone and an exercise zone, with a cone labelled ‘exercise’ inside the exercise zone. Two students are chasers (denners): Denner 1 is unhealthy food and chases players in the playing zone; Denner 2 is the urge to avoid exercise and guards the exercise zone.
- Everyone starts running freely in the playing zone: this stands for a high, healthy metabolism.
- A player tagged by Denner 2 for the first time must go back to the playing zone and may only jog (moderate metabolism).
- A player tagged again (by Denner 1 and then Denner 2 a second time) may only walk (low metabolism).
- A player who reaches and touches the exercise cone without being tagged gets back the right to run: exercise restores energy.
- Denners change every ten minutes.
The game shows the message in your legs: poor choices slow you down, and getting to exercise, even though something tries to stop you, speeds you up again.
Safety: tag gently on the shoulder or back, never push; keep to the circle; drink water after the game, which involves a lot of running.
- Metabolism: all the chemical processes by which the body turns food into energy and uses it.
- Energy taken in more than energy used → extra stored as fat.
- Swasthya Daud: run = high metabolism, jog = moderate, walk = low; touching the exercise cone restores running.
3Worked example
- A student who replaces an evening packet of chips with roasted chana and a 30-minute cycle ride feels more energetic within weeks.
- Climbing stairs instead of taking a lift adds daily physical activity.
- Muscle uses more energy than fat at rest, so strength training helps keep metabolism healthy.
4Your turn
In Swasthya Daud, what does touching the exercise cone without being tagged represent?
5Remember this
Body Mass Index and the classification of obesity
1Think first
2The idea, in plain words
Body Mass Index (BMI) is a quick number that compares a person's weight with their height, to estimate whether their weight is in a healthy range. It is calculated as:
BMI = weight in kilograms ÷ (height in metres)²
The unit is kg/m². Note that height must be in metres: 152 cm is 1.52 m.
The standard classification (used for adults) is:
| Classification | BMI (kg/m²) |
| Underweight | below 18.5 |
| Normal | 18.5 to 24.9 |
| Overweight | 25 to 29.9 |
| Obese Class I | 30 to 34.9 |
| Obese Class II | 35 to 39.9 |
| Obese Class III | 40 and above |
Obesity means having so much body fat that it harms health. It raises the risk of type 2 diabetes, high blood pressure, heart disease, joint pain and breathing problems. Being underweight also carries risks: low energy, weak immunity and weak bones.
An important note for your age. Your body is still growing, and boys and girls grow at different rates. For children and teenagers, doctors compare BMI with BMI-for-age charts for their age and sex, rather than using the adult table directly. So use the table above as a rough guide for planning healthy habits, not as a final judgement. BMI also cannot tell muscle from fat: a muscular athlete can have a high BMI and still be very fit. Waist size and fitness tests add to the picture.
How to measure accurately: weigh yourself in light clothes without shoes, in the morning if possible; measure height standing straight against a wall, heels together, without shoes, using a flat book on your head to mark the wall. Record to one decimal place.
Using your result. Whatever your BMI, plan the next month around healthy habits: at least 60 minutes of moderate to vigorous activity daily, balanced meals, fewer sugary drinks and packaged snacks, and 8-10 hours of sleep. Never start crash dieting or skipping meals; growing bodies need regular, nutritious food. Treat BMI as private information and never tease anyone about weight; talk to a doctor or the school nurse if you are worried.
- BMI = weight (kg) ÷ [height (m)]²; unit kg/m²
- Adult classification: underweight below 18.5; normal 18.5-24.9; overweight 25-29.9; obese class I 30-34.9; class II 35-39.9; class III 40 and above
- Height in cm ÷ 100 = height in m
3Worked example
- Weight 45 kg, height 1.55 m: 1.55² = 2.4025; BMI = 45 ÷ 2.4025 ≈ 18.7 kg/m².
- Weight 60 kg, height 1.50 m: 1.50² = 2.25; BMI = 60 ÷ 2.25 ≈ 26.7 kg/m².
- A muscular wrestler with a BMI of 27 may have little body fat, showing BMI does not separate muscle from fat.
4Your turn
A student's height is 160 cm. Which value should be squared in the BMI formula?
5Remember this
Fitness assessment: baseline, goal and retest
1Think first
2The idea, in plain words
To improve fitness you need to measure it. The method is simple: test to get a baseline (your starting score), set a goal, train, and retest after some weeks. Compare only with your own baseline.
| Component | Test | How it is done (outline) | Sample goal |
| Agility | T-test | Four cones in a T; sprint forward, side-shuffle left, shuffle right across, shuffle back to the middle, run backwards to start; time it | 1-2 s faster |
| Cardiovascular endurance | 600 m run/walk | Cover 600 m as fast as you can, walking if needed; time it | 10-20 s faster |
| Cardiovascular endurance (option) | 3-minute step test | Step up and down a low bench to a steady beat for 3 minutes, then count heart rate | Lower heart rate over time |
| Strength and muscular endurance | Push-ups, squats (1 minute each); plank hold | Count correct repetitions; time the plank | +3-5 push-ups; +5-10 squats; +10-15 s plank |
| Flexibility | Sit-and-reach | Sit with legs straight, reach forward slowly along a ruler; measure past the toes | +1-2 inches |
| Speed | 50 m sprint | From a standing or crouch start; time it | 0.2-0.5 s faster |
| Balance | Stork balance | Stand on one foot, other foot against the inside of the standing knee, hands on hips, rise on to the toes; time how long you hold | Hold longer |
Testing rules for fair, safe results:
- Warm up fully before testing and cool down after.
- Test under the same conditions each time: same time of day, same surface, same shoes.
- Count only correct repetitions: push-ups with the body straight and chest close to the ground; squats with thighs nearly parallel to the ground.
- In the sit-and-reach, move slowly and do not bounce.
- Do not do the 600 m and the sprint on the same day if you are not used to them. Stop if you feel unwell.
- A partner records times and counts; the teacher sets up the course.
Setting a good goal: make it specific and realistic, as in the sample goals above. Then plan practice: three short sessions a week on your weakest component, with rest days between hard sessions. After four to six weeks, retest and reflect: Which area improved most? What was the biggest challenge? What will you do next? Celebrate any improvement; fitness grows step by step.
- Assessment cycle: baseline test → goal → training → retest → reflect.
- Fair testing: same conditions every time, full warm-up, only correct repetitions counted.
- Compare with your own baseline, not with others.
3Worked example
- Baseline 600 m: 3 min 40 s. Goal: 3 min 25 s after six weeks of jogging three times a week.
- Baseline plank: 35 s. After four weeks of daily practice: 50 s, an improvement of 15 s.
- Stork balance improves from 8 s to 20 s after a month of balancing while brushing teeth.
4Your turn
Which test measures agility?
5Remember this
Key Concepts
- Physical fitness
- The ability to do daily tasks with energy and alertness and still have reserve for play and emergencies.
- Health-related fitness
- Fitness components linked to health: cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition.
- Motor fitness
- Skill-related components that help performance: speed, agility, balance, coordination, reaction time and power.
- Cardiovascular endurance
- The ability of the heart and lungs to supply oxygen during long, continuous activity.
- Muscular endurance
- The ability of a muscle to keep working for many repetitions or a long time.
- Agility
- The ability to change direction quickly while keeping control.
- Reaction time
- The time between a signal and the start of a response.
- Coordination
- Using different body parts, often with the eyes, smoothly together.
- Core muscles
- Trunk muscles such as the rectus abdominis, obliques, transverse abdominis, quadratus lumborum and multifidus that steady the spine and pelvis.
- Isometric contraction
- Muscle work in which the muscle stays the same length, holding a position against a force.
- Anticipation
- Predicting where a moving object or player will be and acting in advance.
- Inclusion
- Adapting games so that every child, including children with disabilities, can take part with a fair challenge.
- Social loafing
- The tendency to put in less effort when working in a group than when working alone.
- Social facilitation
- The tendency to perform better when other people are present or watching.
- Metabolism
- All the chemical processes by which the body turns food into energy and uses it.
- Body Mass Index (BMI)
- Weight in kilograms divided by the square of height in metres, used to estimate whether weight is in a healthy range.
- Obesity
- Excess body fat that harms health, classed for adults as a BMI of 30 or more.
- Baseline
- Your first test score, against which later progress is measured.
End-of-Chapter Trial Paper & Test Questions
Topic-wise questions to test your understanding of every concept in this chapter.
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Which of these is a health-related fitness component? (a) Agility (b) Reaction time (c) Cardiovascular endurance (d) Coordination / इनमें से कौन-सा स्वास्थ्य से जुड़ा फिटनेस घटक है? (a) चपलता (b) प्रतिक्रिया समय (c) हृदय-श्वसन सहनशक्ति (d) समन्वय
Show answer
(c) Cardiovascular endurance — it reflects the health of the heart and lungs; the other three are motor (skill-related) components. / (c) हृदय-श्वसन सहनशक्ति — यह हृदय और फेफड़ों के स्वास्थ्य को दर्शाती है; बाकी तीन कौशल से जुड़े (मोटर) घटक हैं।
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In Ropeless Tug of War, the safest and strongest way to pull is to (a) jerk suddenly with the arms (b) lean back and push with the legs (c) hold the opponent's neck (d) let go when losing / बिना रस्सी की रस्साकशी में खींचने का सबसे सुरक्षित और प्रभावी तरीका है (a) बाँहों से अचानक झटका देना (b) पीछे झुककर पैरों से ज़ोर लगाना (c) विरोधी की गर्दन पकड़ना (d) हारते समय छोड़ देना
Show answer
(b) lean back and push with the legs — the legs are much stronger than the arms, and a steady pull without jerks avoids injury. / (b) पीछे झुककर पैरों से ज़ोर लगाना — पैर बाँहों से कहीं अधिक मज़बूत होते हैं, और बिना झटके के लगातार खिंचाव चोट से बचाता है।
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A student weighs 50 kg and is 1.6 m tall. Her BMI is about (a) 31.3 (b) 19.5 (c) 25.0 (d) 15.6 / एक छात्रा का भार 50 किग्रा और ऊँचाई 1.6 मीटर है। उसका BMI लगभग है (a) 31.3 (b) 19.5 (c) 25.0 (d) 15.6
Show answer
(b) 19.5 — 1.6² = 2.56 and 50 ÷ 2.56 ≈ 19.5 kg/m². / (b) 19.5 — 1.6² = 2.56 और 50 ÷ 2.56 ≈ 19.5 किग्रा/मी²।
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Putting in less effort in a group than when working alone is called (a) social facilitation (b) social loafing (c) anticipation (d) adaptation / समूह में अकेले की तुलना में कम प्रयास करना कहलाता है (a) सामाजिक सुगमीकरण (b) सामाजिक आलस्य (सोशल लोफ़िंग) (c) पूर्वानुमान (d) अनुकूलन
Show answer
(b) social loafing — people relax their effort when they think it will not be noticed in a group. / (b) सामाजिक आलस्य — जब लोगों को लगता है कि समूह में उनका प्रयास दिखेगा नहीं, तो वे कम मेहनत करते हैं।
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Which fitness test measures agility? (a) Sit-and-reach (b) Stork balance (c) T-test (d) Plank hold / कौन-सा फिटनेस परीक्षण चपलता मापता है? (a) सिट-एंड-रीच (b) स्टॉर्क संतुलन (c) टी-टेस्ट (d) प्लैंक होल्ड
Show answer
(c) T-test — it times sprinting, side-shuffling and back-pedalling around cones in a T shape, which tests quick changes of direction. / (c) टी-टेस्ट — इसमें T आकार में रखे शंकुओं के चारों ओर दौड़ने, बगल में खिसकने और पीछे दौड़ने का समय लिया जाता है, जो दिशा बदलने की तेज़ी को परखता है।
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In the Crab Crawl Ball Relay, the muscles keep the hips up mainly against (a) friction (b) gravity (c) air resistance (d) magnetism / केकड़ा चाल गेंद रिले में मांसपेशियाँ कूल्हों को मुख्य रूप से किसके विरुद्ध ऊपर रखती हैं? (a) घर्षण (b) गुरुत्व (c) वायु प्रतिरोध (d) चुंबकत्व
Show answer
(b) gravity — gravity constantly pulls the hips down, so the core, gluteal and arm muscles work isometrically to hold them up. / (b) गुरुत्व — गुरुत्व लगातार कूल्हों को नीचे खींचता है, इसलिए कोर, नितंब और बाँहों की मांसपेशियाँ उन्हें ऊपर रखने के लिए स्थिर (आइसोमेट्रिक) रूप से काम करती हैं।
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Differentiate between health-related fitness and motor fitness, giving the components of each. / स्वास्थ्य से जुड़ी फिटनेस और मोटर फिटनेस में अंतर बताइए तथा प्रत्येक के घटक लिखिए।
Show answer
Health-related fitness is the fitness that keeps the body healthy and lowers the risk of disease. Its components are cardiovascular endurance, muscular strength, muscular endurance, flexibility and body composition. Motor fitness, also called skill-related fitness, helps a person perform sports skills well. Its components are speed, agility, balance, coordination, reaction time and power. Most sports need both; for example, a kabaddi player needs endurance and strength as well as agility and quick reactions. / स्वास्थ्य से जुड़ी फिटनेस वह है जो शरीर को स्वस्थ रखती है और रोगों का खतरा कम करती है। इसके घटक हैं हृदय-श्वसन सहनशक्ति, मांसपेशीय शक्ति, मांसपेशीय सहनशक्ति, लचीलापन और शरीर संरचना। मोटर फिटनेस, जिसे कौशल से जुड़ी फिटनेस भी कहते हैं, खेल कौशल को अच्छी तरह करने में मदद करती है। इसके घटक हैं गति, चपलता, संतुलन, समन्वय, प्रतिक्रिया समय और शक्ति (पावर)। अधिकांश खेलों में दोनों चाहिए; उदाहरण के लिए, कबड्डी खिलाड़ी को सहनशक्ति और ताकत के साथ चपलता और तेज़ प्रतिक्रिया भी चाहिए।
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How does Swasthya Daud show the effect of unhealthy food and lack of exercise on metabolism? / स्वास्थ्य दौड़ यह कैसे दिखाती है कि अस्वास्थ्यकर भोजन और व्यायाम की कमी चयापचय पर क्या प्रभाव डालते हैं?
Show answer
In Swasthya Daud, one chaser stands for unhealthy food and another for the urge to avoid exercise. Players begin by running freely, which stands for a high metabolism. When tagged once they may only jog (moderate metabolism), and when tagged again they may only walk (low metabolism). If a player reaches and touches the exercise cone without being tagged, they may run again, showing that exercise restores energy. The game shows that poor food and inactivity slow the body down, while regular exercise raises energy and metabolism. / स्वास्थ्य दौड़ में एक पकड़ने वाला अस्वास्थ्यकर भोजन का और दूसरा व्यायाम से बचने की इच्छा का प्रतीक है। खिलाड़ी शुरू में खुलकर दौड़ते हैं, जो उच्च चयापचय दर्शाता है। एक बार छू लिए जाने पर वे केवल जॉग कर सकते हैं (मध्यम चयापचय), और दोबारा छुए जाने पर केवल चल सकते हैं (निम्न चयापचय)। यदि कोई खिलाड़ी बिना छुए व्यायाम शंकु तक पहुँचकर उसे छू ले, तो वह फिर दौड़ सकता है, जिससे पता चलता है कि व्यायाम ऊर्जा लौटाता है। खेल दिखाता है कि खराब भोजन और निष्क्रियता शरीर को धीमा करते हैं, जबकि नियमित व्यायाम ऊर्जा और चयापचय बढ़ाता है।
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How can the Hitting Running Target Game be adapted for children with disabilities? Why is this important? / हिटिंग रनिंग टारगेट खेल को विशेष आवश्यकता वाले बच्चों के लिए कैसे बदला जा सकता है? यह क्यों ज़रूरी है?
Show answer
For a child with limited vision, a ball with a bell or rattle inside can be used so the target can be heard, and a partner can call the timing. For a child with limited grip strength, rolling the ball or an underhand throw can be allowed. A child using a wheelchair can throw from a closer distance or be the roller. Such adaptations are important because they let every child take part with a fair, real challenge, build confidence and a sense of belonging, and teach all students to respect differences. / कम दृष्टि वाले बच्चे के लिए घंटी या खड़खड़ाहट वाली गेंद इस्तेमाल की जा सकती है ताकि लक्ष्य सुनाई दे, और कोई साथी समय बता सकता है। कमज़ोर पकड़ वाले बच्चे को गेंद लुढ़काने या नीचे से फेंकने की अनुमति दी जा सकती है। व्हीलचेयर इस्तेमाल करने वाला बच्चा कम दूरी से फेंक सकता है या रोलर बन सकता है। ये बदलाव ज़रूरी हैं क्योंकि इनसे हर बच्चा उचित और वास्तविक चुनौती के साथ भाग ले पाता है, आत्मविश्वास और अपनापन बढ़ता है, और सभी विद्यार्थी भिन्नताओं का सम्मान करना सीखते हैं।
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Explain BMI. Calculate the BMI of a student weighing 54 kg with a height of 150 cm and state its class. What are the limits of BMI for teenagers? / BMI समझाइए। 54 किग्रा भार और 150 सेमी ऊँचाई वाले विद्यार्थी का BMI ज्ञात कीजिए और उसकी श्रेणी बताइए। किशोरों के लिए BMI की क्या सीमाएँ हैं?
Show answer
BMI (Body Mass Index) is weight in kilograms divided by the square of height in metres. Here height = 150 cm = 1.5 m, so height squared = 2.25. BMI = 54 ÷ 2.25 = 24.0 kg/m², which falls in the normal range (18.5 to 24.9) of the standard table, close to its upper end. For teenagers the body is still growing, so doctors compare BMI with charts for age and sex rather than the adult table. Also, BMI cannot tell muscle from fat, so a muscular person may show a high BMI while being fit. / BMI (बॉडी मास इंडेक्स) किलोग्राम में भार को मीटर में ऊँचाई के वर्ग से भाग देने पर मिलता है। यहाँ ऊँचाई = 150 सेमी = 1.5 मीटर, इसलिए ऊँचाई का वर्ग = 2.25। BMI = 54 ÷ 2.25 = 24.0 किग्रा/मी², जो मानक तालिका की सामान्य श्रेणी (18.5 से 24.9) में, उसकी ऊपरी सीमा के पास आता है। किशोरों का शरीर अभी बढ़ रहा होता है, इसलिए डॉक्टर वयस्क तालिका के बजाय आयु और लिंग के चार्ट से BMI की तुलना करते हैं। साथ ही BMI मांसपेशी और वसा में अंतर नहीं कर सकता, इसलिए मांसल व्यक्ति स्वस्थ होते हुए भी अधिक BMI दिखा सकता है।