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Class 12Effects of exercise overRespiratory systemmuscular dystemSkeletal systemCirculatory systemWrite minimum 8 points for each please. Need it urgently please. Don't answer if you don't know.​

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Effects of exercise over respiratory system:-

• Increase in tidal VOLUME: With regular exercise, the tidal volume and vital capacity of lungs increase, as chést expands more.

• Respiratory muscles become strong: Inner cóstal and diaphragm become strong to work maximally for longer duration.

• Expansion of chést: Regular exercise causes greater expansion in chést. This results in the improvement of physical personality.

• Increase in number of ALVEOLI: There is an increase in the number of alveoli which purifies more blood. Thus, the efficiency of respiratory system gets improved.

• Efficient respiratory system: The efficiency of alveoli increases. This causes more oxygen to reach into the tissues which further causes more production of energy during STRESSFUL conditions (heavy exercise).

• Increase in aerobic endurance: Increase in the amount of oxygen in blood decreases the production of lactic acid, therefore, fatigue is DELAYED and hence endurance improves.

• Faster removal of carbon dioxide: In a trained person, there is faster removal of carbon dioxide from body.

• Improves metabolism: In a trained person, the metabolic reactions are faster for energy production with less consumption of oxygen.

• Hydro-balance in body: The water balance in the body is maintained to exercise.

Effects of exercise over muscular system:-

• Gain in strength: With regular exercise, there is gain in muscular strength and power.

• Lactic acid tolerance: Regular exercise increases the ability of muscles to tolerate lactic acid for longer duration.

• Efficiency improvement: With regular exercise, there is an increase in the number of capillaries in muscles. By this, there is faster circulation of blood, thus, improving the efficiency of muscles.

• Increase in muscle mass: Regular exercise increases the muscle mass.

• Proper shape of body: Regular exercise provides proper shaping of body, thus improving physical personality.

• Faster recovery from injury: Trained muscles can recover from injury very fast, moreover there are less chances of injuries.

• Desired strength can be developed: Systematic and scientific training can develop the desired strength and endurance.

• Faster responses: The stimulus travels faster in trained muscles which improves the reflex action.

• Efficient use of diet: Trained muscles can efficiently use carbohydrates, proteins, fats, etc as sources of energy with less consumption of oxygen.

Effects of exercise over skeletal system:-

• More blood supply: Through regular exercises the blood supply in bones improves.

• Faster healing: Healing ability of the bones becomes faster.

• Increases RBCs: The number of RBCs in the blood increases.

• Strong jóints: Sports persons have strong juncture of jóints. Moreover the synovial fluid provides free and easy movement at jóints.

• Increases flexibility: The flexibility of the person improves.

• Stronger bones: The bones become more strong and slightly stretchable.

• Reduces bone injuries: Regular exercise reduces the chances of bone injuries.

• Good posture: Good posture is the result of good skeletal system.

• Personality development: With regular exercise, the proper growth and development of bones take place.

Effects of exercise over circulatory system:-

• Hypertrophy of heart: With regular exercise the hypertrophy (enlargement of heart) takes place.

• Resting pulse increases: With increased stróke volume, the bàsal heart rate decreases thus, the resting time of heart increases.

• Faster adaptation to working load: In trained persons, the heart can adopt to working load quickly.

• Return of normal pulse quickly: The pulse RETURNS to normal quickly after exercise.

• Increase in haemoglobin: Regular training increases the haemoglobin content in blood.

• Faster removal of waste: There is faster removal of waste products from the body.

• Reduction in cardiac problems: Regular exercise reduces heart attack risk and other cardiac problems.

• Faster healing: The increased circulation of blood makes healing faster.

• Blood pressure regulation: A well balanced blood pressure is maintained.



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