Class 11 Physical Education Chapter 3 Physical Aspects Notes

These Class 11 revision notes on Physical and Physiological Aspects of Physical Education and Sports bring together every definition, difference table and body value that the annual paper actually asks for. Growth and development, the nine factors behind them, warming up, conditioning, cooling down and the four body systems are all covered in the order the 2026-27 NCERT textbook prints them.

• Covers the full growth versus development table, all nine factors and the three developmental stages.
• Chapter 3 usually carries 12 to 16 marks in the Class 11 annual paper.
• Written according to the 2026-27 NCERT Health and Physical Education textbook for Class 11.

Every note on this page is curated by Class 11 Physical Education teachers, checked line by line against the 2026-27 NCERT print, and refined against the last five years of school question papers.

What the Class 11 Physical and Physiological Aspects Notes Cover

This chapter has two halves. The first half is psychology and biology, built on growth, development and the forces that shape a child. The second half is exercise physiology, built on warm-up, conditioning, cool down and body values you must quote exactly.

• Growth and development, the meaning of each and the nine-row difference table the book prints.
• Heredity and environment, the three types of environment and the role each force plays.
• The nine factors that affect growth and development, from gender and nutrition to pollution.
• Early childhood, middle childhood and adolescence, with the height and weight figures for each.
• Warming up, general and specific, its objectives, four methods and the 15 to 20 minute rule.
• Sports conditioning and cooling down, with the four effects of a cool down.
• Effects of exercise on the cardiovascular, respiratory, muscular and digestive systems.

Tip: The second half is where marks are won and lost. A paper will ask for the normal heart rate, the resting tidal volume or the cardiac output formula. Those are one-mark answers only if the figure is exact.

Growth and Development: Meaning, Difference and Why Both Matter

The chapter opens by separating two words students use as if they mean the same thing. Growth is a physical change. Development includes physical, social and psychological changes. Growth is quantitative. Development is quantitative as well as qualitative.

Development also means transformation or improvement. Keep that single line ready, because a two-mark question often asks nothing more than what each term means.

What Growth Means in Class 11 Physical Education

Growth refers to the process through which the body increases in size and shape. It is a biological process. In other words, growth means an increase in mass.

• The process of growth starts from the time of conception, inside the mother's womb.
• The fertilised egg continues to grow, and after birth the process goes on until complete physical maturity is obtained.
• Growth is a quantitative increase in size and shape.
• Physical growth refers to changes in the size and shape of different organs of the body. Each organ normally proceeds at a different rate.
• Growth is therefore a tangible biological process in which the organism gains in size, volume, height and weight.

What Development Means and Why It Never Stops

Development is related with advancement and a progressive series of qualitative changes. Development processes have a greater relationship with external factors than growth does.

• Proper development cannot take place unless external factors are ensured: nutrition, activity, protection from diseases and other socio-cultural influences.
• More specifically, development is defined as the emerging and expanding of the capabilities of the individual.
• Growth forms the basis for the development of the functional capacities of the child. Without proper growth, the required level of development may not be reached at a given stage.
• Acquisition of skills and knowledge also indicates a developmental process.
• Growth comes to an end at some stage of life. Development continues till death.

Difference Between Growth and Development (Table 1 of the Textbook)

This is the most frequently set long answer in the chapter. The book prints nine points. Write them as a two-column table in the paper and you keep every mark.

Memory hook: the last row is the bridge to the next section. Heredity sets the ceiling for growth, environment decides how much of that ceiling a person actually reaches. Examiners like that sentence.

Physical and Physiological Aspects Full Chapter Explained

Source: Magnet Brains on YouTube

Heredity and Environment: The Two Forces Behind Every Trait

The chapter says the behaviour of a living organism is influenced by two factors, heredity and environment. Both are listed as factors affecting growth and development, but they get more space than the rest, so treat them as a section of their own.

Heredity and the Traits That Are Present at Birth

Heredity is a biological process that plays an important role in the transmission of physical and social attributes from parents to their children. The biological or psychological characteristics transmitted by parents to children are known as heredity.

• Traits highly influenced by heredity: height, weight and structure of the body, colour of hair and eyes, intelligence, aptitudes and instincts of the child.
• Heredity is the transmission of certain traits of appearance and behaviour of the parents towards their offspring.
• Hereditary traits are innate. They are present at birth.
• The essential characteristics inherited by all human beings are physical structure, reflexes, innate drives, intelligence and temperament.

Environment and Its Three Types

Psychologically, a person's environment is the sum total of the stimulations, physical and psychological, received from the conception. The chapter names three types and you should be able to give one line of example for each.

The chapter then gives a second, simpler split of the same idea. Environment is the sum total of the surroundings in which an individual has to live, and it is generally divided into two categories, natural and social.

• Natural environment refers to all those things and forces on and around the earth that are natural and that influence a person.
• Social environment is what one sees around oneself on acquiring consciousness in society: languages, religions, customs, traditions, means of communication, means of luxury, family, school and social groups.

Role of Heredity and Environment on Growth and Development

The book prints this as a three-point box, which makes it an easy three-mark question. Learn all three lines and the comparison at the end.

1. Heredity is responsible for all the inborn traits, instincts, emotions and physical traits.
2. Environment is responsible for the growth and development of the mental and social traits.
3. The two forces are complementary to each other, like seed and soil, or ship and wave.

The section closes with a line worth quoting. Growth and development are regulated by the surrounding environment of a child, or by where an individual lives.

Nine Factors Affecting Growth and Development Every Class 11 Student Must Know

The chapter lists nine factors that influence the growth and development of a living organism. Heredity and environment are the first two and are covered above. The remaining seven are shorter, so learn them as a single block with one supporting fact each.

Hormones: The Three Glands the Chapter Names

Hormones are physiological substances that have the power to increase or decrease the activity level of the body or of certain organs. Endocrine glands are ductless glands situated in specific parts of the body. They make internal secretions locally and produce one or more hormones.

Learning, Reinforcement and the Proverb the Chapter Rewrites

Learning is called the most important and fundamental topic in the whole science of psychology. Development consists of maturation and learning, and learning includes much more than school learning.

• Learning helps the child in physical, mental, emotional, intellectual, social and attitudinal development.
• All knowledge and skill, all good and bad habits, all attitudes built while dealing with people and things are learned.
• Reinforcement is an important factor in learning. Exercise or activity is necessary for learning.
• The activity may be motor, as in playing a musical instrument, or sensory, as in listening to a piece of music.
• The old proverb is learning by doing. The chapter says it should now be replaced by learning by doing and getting results, because the activity should be repeated till the desired result is obtained.

Also Check: A five-mark question often reads "define growth and development and explain the factors affecting them". Write the two definitions first, then name all nine factors, then explain any four in detail. Naming carries its own marks.

Physical and Physiological Changes During the Three Developmental Stages

The chapter divides the growing years into early childhood, middle childhood and adolescence. Each stage has its own figures, and the figures are what an examiner checks first.

Early Childhood, from Birth to Eight Years

Early childhood is a time of tremendous growth across all areas of development. The physical changes are matched by rapid changes in the child's cognitive and language development.

• Between birth and the age of three, a child typically doubles in height and quadruples in weight.
• A typical three-year-old may have mastered sitting, walking, toilet training, using a spoon, scribbling, and enough hand-eye coordination to catch and throw.
• Between three and five years, children continue to grow rapidly and begin to develop fine motor skills.
• By the age of five, most children show fairly good control of pencils, crayons and scissors. Gross motor gains include the ability to skip and to balance on one foot.
• Physical growth slows down between five and eight years, while body proportions and motor skills become more refined.

Middle Childhood and the Falling Age of Puberty

Middle childhood has not been treated as an important stage in human development when compared with early childhood. Physical development during this stage is less dramatic, and growth is slow and steady until puberty begins.

• Once puberty starts, individuals begin to develop at a much quicker pace.
• The age at which individuals enter puberty varies, but there is a visible trend. The age at which puberty begins has been decreasing over time.
• In some individuals puberty may start as early as age eight or nine.
• The onset of puberty differs across gender and begins earlier in females.
• Cognitive development in middle childhood is also slow and steady.
• This is the stage when children can gain enthusiasm for learning. Working for achievement becomes a motivating factor as they build competence and self-esteem.

Adolescence, the Second Period of Accelerated Growth

The age between 12 and 18 years is generally considered adolescence. It is called the second period of accelerated growth, and it is the stage the paper asks about most often.

• Individuals may gain a total of 15 to 20 centimetres in height and as much as 8 to 10 kg in weight.
• The timing of this growth spurt is not highly predictable. It varies across individuals and across gender.
• In general, females begin to develop earlier than males.
• Sexual maturation is one of the most significant developments during this time, and there is significant variability in the age at which it is attained.
• Females tend to mature at about age thirteen and males at about age fifteen.
• Adolescence is also an important period for cognitive development.

Warming Up: Meaning, Objectives and the 15 to 20 Minute Rule

The second half of the chapter starts here. The body's physiological responses to exercise occur in the musculoskeletal, cardiovascular, respiratory, endocrine and immune systems. Different types of exercise have different effects on the muscles used, so the body has to be warmed up properly first.

The chapter shows the workout as three parts in sequence: warm-up, sports conditioning and cool down. Warming up is a short activity carried out prior to any intense or skilled activity.

Why Players Need a Warm-up

The book gives one long list of reasons. Split it into two short answers so you can use either half depending on the marks.

• It increases body temperature and heart rate.
• It provides stretching, which increases blood flow and prevents injuries to the muscles, tendons and ligaments.
• It stimulates the entire body and the major biomechanical functions.
• It provides practice for basic movements.
• It prepares the player or athlete for rigorous athletic activity and training.
• It brings the body to a condition at which it safely responds to nerve signals for quick and efficient action.
• It prepares the player physiologically and psychologically to compete in a game.

Important: the chapter adds a caution that students often miss. Proper warm-up exercises are not supposed to be done vigorously. If a true or false question says a warm-up should be vigorous, the answer is false.

The Six Objectives of a Warm-up

This is a direct one-mark or two-mark question. Five of the six objectives are increases, and the last one is a decrease. That contrast is the easiest way to remember the list.

1. Increase heart rate.
2. Increase blood flow.
3. Increase the internal temperature of the muscles.
4. Increase respiratory rate.
5. Increase perspiration.
6. Decrease the viscosity of joint fluids.

A warm-up at the right intensity also increases the range of movement of the joints and improves aerobic performance. In plain words, the player becomes more flexible and movement efficiency improves.

General Warm-up and Specific Warm-up Compared, with Sport Examples

Both types appear in the textbook assessment as separate short-answer questions. Learn the definition, then one example, then one benefit for each. That is enough for full marks.

Specific Warm-up Exercises for Six Sports

The book prints six sports with their own drills. A question can name any one sport and ask for its specific warm-up, so learn at least three drills per sport.

The chapter gives two worked examples in prose as well. In weightlifting, the athlete first performs some exercises with a bar. In basketball, the player practises lay-up shots or free throws before the competition, which helps improve coordinating abilities.

Four Methods of Warming Up and the Rules Every Player Must Follow

The chapter names four methods of warming up. Only the first one is exercise. The other three are worth learning because they turn up as one-mark questions that most students leave blank.

Four Rules to Follow While Performing a Warm-up

The book closes the warm-up section with a practical box. These four points are the model answer for "things to keep in mind while warming up".

1. Always start with a continuous slow run to prepare the body and increase temperature. Move all the parts of your body, from head to toes.
2. Do not get tired. Avoid too many repetitions of each movement and move the alternate parts of the body.
3. It has to be progressive, from low-intensity to high-intensity exercises.
4. End with some sprints or short, fast races. This part should last 10 to 15 minutes and the heart rate should rise to 120 to 140 beats per minute.

Sports Conditioning: Purpose, Components and Injury Prevention

Sports conditioning offers an edge over the competition. Its purpose is to complement current sports training, not to replace it. The chapter calls it ideal for children who strive for greater performance in any sporting activity.

Conditioning is meant to enhance an individual's strength, balance, coordination, flexibility, speed and power. Those six qualities can be carried over into all the sports a person plays.

Two extra lines are worth adding to a five-mark answer. Conditioning offers teams a chance to grow strong together, and it helps athletes apply their sport-specific skills better. Athletes of all levels and abilities need a sports-oriented training programme besides general fitness.

Cooling Down or Limbering Down and Its Four Effects

Cool down is a session of light exercises that follows rigorous physical activity. The session usually includes gentle exercises and stretching activities. Stretching is the major factor in the procedure of cooling down, because it allows the body muscles to build elasticity and repair from aerobic and anaerobic exercises.

Cooling down is an easy exercise done after a more intense activity. It allows the body to gradually transition to a resting or near resting state. The main aim is to promote recovery and return the body to a pre-exercise or pre-workout level.

Why is that needed? During a strenuous workout the body goes through a number of stressful processes. Muscle fibres, tendons and ligaments get damaged, and waste products build up within the body.

The Four Effects of Cooling Down

The textbook prints these as a numbered list, which makes it a clean four-mark answer. Write all four with the reason attached to each.

1. Helps heart rate and breathing return towards resting levels gradually.
2. Helps avoid fainting or dizziness, which can result from blood pooling in the large muscles of the legs when a vigorous activity is stopped suddenly.
3. Helps to remove metabolites from the muscles, such as lactic acid. Metabolites are the intermediate substances formed during metabolism.
4. Helps to prepare the muscles for the next exercise session, whether that is the next day or in a few days' time.

The chapter also prints a small diagram with three more effects. Add them if the question carries five marks or more.

• Faster removal of lactic acid from fast twitch muscle fibre.
• Faster removal of carbon dioxide from muscle tissue.
• Reduction in the risk of muscle soreness.

Do You Know: the chapter notes there are two main types of muscle fibres, fast twitch and slow twitch. Fast twitch fibres are the ones named in the cool down diagram.

Effects of Exercise on the Cardiovascular System

The cardiovascular system is the system of the heart, blood vessels and blood. This section carries the most quotable numbers in the whole chapter, so learn the resting value and the exercise value as a pair for every term.

The one formula in this chapter sits here, and it is asked as a direct short answer. Cardiac output = Heart rate × Stroke volume. Endurance training increases cardiac output through an increased stroke volume, and cardiac output increases directly with increased exercise.

Cardiac Hypertrophy and the Athlete's Heart

Hypertrophy is the increase in the volume of an organ or tissue due to the enlargement of its component cells. When it happens to the heart it is called cardiac hypertrophy.

• Cardiac hypertrophy is referred to as the athlete's heart.
• It may occur after 7 to 10 years of vigorous physical training.
• Do not confuse it with muscular hypertrophy, which is the enlargement of skeletal muscle covered further down this page.

Six Effects of Exercise on Blood Volume

The book prints six bullet points for blood volume. All six can be asked together as a three-mark question, so keep them in one block.

1. The effect of exercise on blood volume depends on the type and intensity of the exercise.
2. During endurance training, the resting blood volume increases approximately by 8 per cent.
3. Plasma volume in the blood increases by 12 per cent.
4. An increase in blood volume is known as hemodilution.
5. There is an increase in the number of blood vessels and in their size.
6. By continuous and endurance training, capillarisation takes place.

Tip: the textbook activity asks you to record your heart rate from the radial artery or the carotid artery before and after a 100 metre sprint. That practical detail has appeared as a one-mark question, so learn both artery names.

Effects of Exercise on the Respiratory System

The mechanism of inspiration and expiration is known as respiration. It is controlled by the medulla oblongata of the brain, and it helps in the adequate supply of oxygen and the elimination of carbon dioxide from the body.

Seven terms are defined in this section. Four of them carry a number, and those four are the ones the paper picks.

The formula for minute ventilation is the second formula in the chapter and it is short enough to be a one-mark question. PV = Tidal volume × Respiratory rate, written in short as PV = TV × RR.

Why Ventilation Rises in Two Phases

The chapter gives a two-step reason for the rise in ventilation during exercise. Most students write only the first step, so the second one is easy marks.

1. The initial rise in ventilation is due to the increased stimulation of the inspiratory centres caused by muscular activity.
2. The second phase of gradual increase happens because of a rise in temperature and because of chemical changes in the arterial blood produced by muscular activity.

Important: total lung capacity is the one value in this section that goes down during exercise. Everything else goes up. Students routinely write that it increases and lose the mark.

Effects of Exercise on the Muscular System

Muscle is a tissue which has the power of contraction. Skeletal muscles are the main muscles used for physical activities and exercises. Several changes take place in skeletal muscle depending on the type of training an individual is doing.

The section closes with one summary line that belongs at the end of any answer on this topic. Strength, flexibility and endurance are all increased after training.

Also Check: the textbook short answer asks "what is muscle hypertrophy". Define it as the enlargement of muscles due to regular exercise, then add the three details: fibre diameter, fibre length, and the rise in protein, glycogen and enzymes.

Effects of Exercise on the Digestive System

Regular exercise makes the digestive system strong. It speeds up metabolism and prevents constipation. The chapter lists four short term effects, and each one has its own mechanism attached.

This is the shortest of the four systems in the book, so it usually appears as a two-mark or three-mark question rather than a full long answer. Learn all four effects and one mechanism each, and the answer is complete.

Common Mistakes Students Make in the Physical and Physiological Aspects Chapter

In the same student poll, the respiratory system values were the single biggest source of lost marks, ahead of both the growth versus development table and the factors question.

Physical and Physiological Aspects Textbook Assessment Questions Answered

The chapter ends with four question types. Here is what each one tests and where the answer sits in these notes.

Short Answer Questions, Solved

1. What is meant by cardiac output? It is the amount of blood pumped out by each ventricle of the heart in one minute. Cardiac output = Heart rate × Stroke volume. At rest it is around 5 litres per minute.
2. Write down the full form of MV. Minute Ventilation, also called pulmonary ventilation. It is the breathing process of the lungs during inhalation and exhalation, and it equals tidal volume multiplied by respiratory rate.
3. What is muscle hypertrophy? The enlargement of muscles due to regular exercise and training. Muscle fibres increase in diameter and length, and the total amount of protein, glycogen and enzymes increases.
4. List the developmental stages of life. Early childhood, middle childhood and adolescence, as the chapter presents them.
5. What is general warm-up? Rhythmic movements using large muscle groups, such as walking, jogging, stationary bike, skipping or easy aerobics. It improves neuromuscular coordination and reduces viscosity in muscle fibres.
6. What is specific warm-up? A set of exercises matched to the main activity, with a direct relation to the sport to be played. It is more vigorous, and it differs from sport to sport.

Fill in the Blanks and Match the Following, Solved

1. Growth refers to the process through which the body increases in size and shape.
2. There are nine major factors which directly or indirectly influence the growth and development of a living organism.
3. Hormones play an important role in regulating the process of growth and development.
4. An increased tidal volume, or increased respiratory rate, or both, is referred to as hyperventilation.
5. Heart rate increases during submaximal exercise and it is caused due to increase in sympathetic activity.
6. Weight training with high velocity movement develops explosive strength or power.

How the Physical and Physiological Aspects Chapter Appears in the Class 11 Paper

This is one of the heaviest chapters in the Class 11 book because it holds both a psychology block and a physiology block. In the annual paper it usually contributes one long answer and three or four shorter ones.

Together that is roughly 12 to 16 marks from one chapter. The same content also feeds the CUET Physical Education paper, where the warm-up figures and the cardiovascular values appear as direct one-mark questions.

How to Revise the Physical and Physiological Aspects Chapter in One Sitting

Students in the poll reported an average of 100 minutes for this chapter and its questions. That is longer than most Class 11 Physical Education chapters because of the number of values. Split the time in three blocks.

1. First 30 minutes: learn the growth and development definitions and write the nine-row difference table from memory. Then list the nine factors and add one line to each.
2. Next 30 minutes: do the three developmental stages with their figures, then the whole warm-up block including the six objectives, the four methods and the general versus specific table.
3. Last 40 minutes: learn the four body systems. Make a single value sheet with heart rate, stroke volume, cardiac output, tidal volume, respiratory rate and minute ventilation, then write one five-mark answer without looking.

Also Check: the night before the paper, revise only the growth versus development table, the two formulas, and the resting values for the heart and the lungs. Those three blocks cover most of what an examiner can set from this chapter.

Where the Physical and Physiological Aspects Chapter Connects to the Rest of the Class 11 Book

This chapter does not sit alone. Three other chapters in the Class 11 Health and Physical Education book use the same terms, and questions sometimes cross between them. Revise them together and you save time on both.

NCERT Notes for All Class 11 Physical Education Chapters

The Class 11 Health and Physical Education book runs across eleven chapters, and revision notes are published for the first ten. Each page follows the same shape as this one, with tables, a common mistakes block and a downloadable PDF.