<span>The question says,'the beginning of every workout should start with .......... The correct option is A. Work outs should start with warming up, this gently prepare the body for exercise by increasing the heart beat rate and circulation, this loosen the joints and increase the blood flow rate to the muscles. Strectching the muscles prepare them for exertion and prevent injuries.</span><span />
Hypothesis based on common defination is an educated guess.
Answer:
depends on the total number of individual muscle fibers that have been stimulated
Explanation:
