How does stretching improve muscle scarring? it reduces it. it lines the myofibrils up. it lengthens the myofibrils. all of the above

All of the above.

Explanation:

The stretching is an act of healing the scars and the scar tissues that will help to increase the mobility of the body. Various stretching and flexibility exercises helps to line up, lengthen and stretch the impacted tissues that are found near the scar, which are typically the myofibrils. If the tissue fibers are elongated and not much tight and rigid, then the body will experience less restriction and better mobility. Thus the scars on the muscles are removed.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.