1. Squat: Do it with barbells or bare hands. Main point: Use hip joint to drive the body to squat, instead of bending knee joint to drive the body to squat. Pay attention to the knee joint not to exceed the toes when squatting. One group 15-20, 4-5 groups, with a rest between each group 1 minute. Sports parts: thighs and buttocks.

2, step-by-step squat: pay attention to the upper body not to lean forward, perpendicular to the ground, the front leg knee joint squat process should not exceed the toes, the number and group are the same as above.

Extended data

Muscle strength classification of muscular atrophy:

(1) Level 0: completely paralyzed, unable to do anything free and powerless.

(2) Grade I: complete paralysis, slight muscle atrophy can be seen during limb movement, but limbs can't move.

(3) Grade II: The limbs can move in parallel on the bed, but they cannot be lifted off the bed surface.

(4) Level 3: The limbs can overcome gravity and lift off the desktop.

(5) Grade IV: Exercise in which limbs can resist external resistance.

(6) Grade V: Normal muscle strength and free movement.

Baidu Encyclopedia: Muscle atrophy