The actual reason for this thickening is as follows: 1. In the process of doing this kind of exercise, it is possible to make the muscles of the lower limbs get sufficient exercise and then make the muscle fibers thicker, so it can make the muscles look more bulky. In short, it is possible to make the lower limbs thicker. 2. It may be due to the generation of edema. When the patient is doing this type of activity, it is possible to produce a sterile inflammation around the muscles, and then produce edema. It is also possible that the lower limbs may become thicker at this time. Patients should not worry too much after doing this type of activity that leads to thickening of the lower limbs, because doing this type of activity that leads to thickening of the lower limbs is inevitable, but not continuous. If the patient continues to do this type of activity, it is possible that the lines of the lower limbs will become more coordinated, and at the same time, the lower limbs will become thinner through fat consumption. Therefore, patients should not be afraid to continue exercising after doing this type of activity with thicker lower limbs will ease.