Question

What provides energy to muscles and helps keep them strong?

Answer 1

Answer:

adenosine triphosphate (ATP)

Explanation:

Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.

Answer 2

Answer:

The source of energy that is used to power the movement of contraction in working muscles is adenosine triphosphate (ATP) – the body's biochemical way to store and transport energy. However, ATP is not stored to a great extent in cells. So once muscle contraction starts, the making of more ATP must start quickly.