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What is the pathway of energy transfer during muscle movement?

The contraction of skeletal muscles is one of the most energetically expensive activities that the body does on a regular basis. Adenosine triphosphate (ATP) is split into adenosine diphosphate (ADP) and phosphate to supply the energy for muscle contraction. The free energy released by the ATP when the phosphate is split off is transferred to the heads on the myosin filaments. The heads move and store potential energy in their new position. When the heads interact with actin, the energy is used to slide the filaments past one another transferring the energy into movement (kinetic energy).

<a rel="nofollow" href="https://http://glencoe.mcgraw-hill.com/sites/dl/free/9834092339/291136/BreakdwnDrngCntrctn.swf" target="_blank">https://http://glencoe.mcgraw-hill.com/sites/dl/free/9834092339/291136/BreakdwnDrngCntrctn.swf</a>
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