G9 U3 L1- Response To Exercise (Last slide activity)

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Response To Exercise

Define: physiological response is the bodies automatic response to a stimulus.

training: aerobic training can decrease heart rate at rest and increase stroke volume during some workloads.

age: due to size, younger children have a lower stroke volume but as we get older the stroke volume increases. same with heart rate.

stroke volume: the count of blood ejected per beat by the left ventricle into the aorta.

Physiological Response

Effects

Long Term

stroke volume at rest is higher in a trained person rather than untrained. it can pump more blood per minute increasing cardiac output when exercising

cardiac hypertrophy: heart increases in size and wall of left ventricle gets thicker.

increase blood volume and blood plasma increase in strength to tendons and ligaments

Short Term

increase in heart rate and stroke volume

increase carbon dioxide removal and increase in lactic acid production

increase oxygen intake for muscle movement

Factors

duration

intensity

frequency