Quadriceps, Glutes
Calves, Forearms, Hamstrings, Lower Back, Shoulders, Traps
Stand feet shoulder-width, hold bar clean grip, lower bar to just below knees (hang position).
Back straight, chest up, shoulders over bar.
Explosively extend hips/knees/ankles.
Shrug, pull bar up.
Drop under into front squat, catch bar in rack.
Stand up.
Lower bar to below knee hang. Repeat.