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Physiology of fitness task 2

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Physiology of fitness task 2
Task 2

Preseason cooper run
Post Training Cooper Run
Weight
94kg
93kg
Resting Heart Rate
63bpm
63bpm
Breathing Rate rest
12
13
Breathing Rate after
32
34
Distance
1856m
1903m
HR Max
180
183
HR min
63bpm
63bpm
PRE @ end

Sit and Reach
19cm
19cm
Peak Flow
413
416

Submission date:28/4/14

In terms of the muscular system the long term effects of exercise are –
Hypertrophy – the muscle increases in size and bulk. Hypertrophy is a result of an increase in the volume of contractile proteins within the muscle cell so they can contract with greater force. The number of muscle fibres stays the same. In general males have a greater potential for increases in muscle bulk due to higher levels of testosterone.

Increases in tendon strength - tendons are tough bands of fibrous connective tissue designed to withstand tension forces along their length. Like muscles, tendons adapt to the mechanical loading of regular exercise. A general adaptation is increased strength but different types of training will exert differing effects on muscle – tendon complexes. Ligaments and tendons will increase in flexibility and strength with exercise. Articular cartilage also becomes thicker.

Muscle stores & Mitochondria - Muscles increase their oxidative capacity (their ability to use oxygen to produce energy) with regular training. This is achieved by an increase in the number of mitochondria (an organelle where aerobic energy is produced) within the muscle cells which will increase the supply of ATP and an increase in the quantity of enzymes involved in the production of ATP. The ability of the muscle to store myoglobin is increased (myoglobin is like haemoglobin and carries oxygen).

Lactic acid anaerobic training stimulates the muscles to become better able to tolerate lactic acid and clear it away more efficiently. With endurance training the capillary network extends allowing greater volumes of blood to supply the muscles

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