Can long-distance running thin legs?

Muscle of human body is composed of muscle fibers, and the number of muscle fibers in a muscle is certain. Physical exercise can thicken the dimension of muscle fibers, thus increasing the cross-sectional area of muscles, rather than increasing the number of muscle fibers.

Understand the above reason, since the number of muscle fibers remains the same, we can make calf muscles thinner in three ways:

First, the dimension of muscle fibers can be thinned by stretching muscles. The specific methods are as follows: before sitting (standing), put your legs high, keep your legs straight and leg press, and hook your legs;

Second, through aerobic exercise, the subcutaneous fat of the calf and the fat between muscle fibers can be consumed, which can also make the calf thinner;

The third is to lie still and don't use the muscles of the calf. After a long time, the muscles will shrink and the calves will become thinner-this is obviously not possible.

Therefore, in order to make the calf thinner, the first two methods are feasible, and the second exercise has the most obvious effect.