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Contraction
inspirationInpiration involves contraction of muscles. This is an energy requiring process
For a really good explanation of this watch the history channels power plants episode. it is available on i tunes and it explains the entire process.
Respiration.
Respiration.
b
In isotonic energy, 70% of the energy exerted is given off as heat energy. In isometric contraction, only 30% of the energy given off is exerted as heat energy.
Respiration is the answer. Respiration is the process which releases chemical bond energy from organic nutrients(food).
during isometric contraction, the energy used appears as movement
ATP is important in muscle contraction. ATP is high energy bond which gives you energy required for muscle contraction.
Muscles turn chemical energy into heat and work during contraction. Straight from the science book.
Sub energy pretty much explains itself: It is below energy level