Question

1. Name two physiological changes that occur in the muscle due to exercise training which allow an individual to improve their fitness (VO_2max)? Why do these changes result in a change in overall fitness?
2. Does max HR change with training? Are there any cardiac adaptations to long-term exercise training?

Answer 1

Two physiological changes:

• Oxygen and substrate need increase in the skeletal muscles.
• Removing of carbond dioxide and metabolite.
• More blood enters into the muscle during exercise,temperature increases and finally blood enters into the skin.

By the above changes,activity of muscle increase and strengthing also increase.

• Muscle gets build when compare to the previous body.
• Muscle get stretched more and size of the muscle also increases.
• Then finally it give good fittness to the body.

Yes,max Heart Rate change with training by doing regular workout, pumping of blood increases day by day.

Yes,cardiac output, pumping of heart,conduction in heart muscle get adapted to long term exercise training.