Basic thigh exercise movements - deep squats (half squats)

Notes: During the entire movement, always raise your head, lift your chest, tighten your waist, and rise and fall vertically.

Action description: Raise your head and chest, tighten your waist, and slowly squat down until your thighs are parallel to the ground, or the knee joint angle is equal to 90 degrees.

Use the power of the quadriceps to push up and keep the barbell moving vertically upward.