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Long Term Effects of Exercise

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1. What are the long term effects of exercise on… a) the cardiovascular system b) the respiratory system c) the muscular system d) the skeletal system

a. The long-term effects of exercise on the cardiovascular system are the heart becomes bigger and its walls become thicker and the coronary arteries become better at supplying the heart with blood. It will be able to pump more blood per min which makes the heart more capable of a higher heart rate, stroke volume and minute volume. b. The long-term effects of exercise on the respiratory system are increasing the air sacks in the lungs, clearing out any mucus that may be in any of them, increasing the vital capacity of the lungs and tidal volume of the lungs as well as increasing the strength of the diaphragm muscle. The lungs will become healthier and produce a greater number of alveoli. c. The long-term effects of exercise on the muscular system are the tendons (a connective tissue that connect muscle to bone) become stronger, our aerobic energy system become more efficient, slow twitch fibres increase in size. Also our muscles hypertrophy become bigger and individual muscle fibres become thicker becoming able to cope with lactic acid. Lastly the chemical reaction in our muscle that produces energy increase in quantity and the removal of lactic acid is faster. d. The long-term effects of exercise on the skeletal system are the mineral content of our bones increases and bones get denser, the ligaments become stronger and stretch slightly and the cartilage thickens.

2. Answer the questions below… a) What is the difference between anaerobic and aerobic respiration. b) Give an example of when you would work aerobically in sport. c) Give an example of when you would work anaerobically in sport.

a. Aerobic respiration is where energy is made

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