The thickness of subcutaneous fat layer has the greatest influence on the size. If you want to have strength and control dimensions, you should increase the time of aerobic exercise training and reduce the thickness of sebum to control dimensions.

You don't have to train the muscle strength of your legs every day, and training your legs every day will not promote muscle growth. It is enough to practice 2~3 times a week.

The number of legs in each group is suggested to be around 15~ 17, and no amount of repetition will mobilize more muscle fibers. What you said about being able to do 20 is actually a little light. The best weight is the weight you can discharge in 15~ 17, and the number of groups can be maintained at the present number. In addition, pay attention to control the rest time between groups. 30 seconds to 1 min is more appropriate.

Aerobic exercise is best carried out after strength training, which can improve the effect of reducing fat. It only takes 30 minutes a day. It's better to step on the ellipsometer, it's not as dense as your knees.