Stand over barbell with balls of feet positioned under bar hip's width apart or slightly wider. Squat down and grip bar with overhand grip slightly wider than shoulder width. Position shoulders over bar with back arched tightly. Arms are straight with elbows pointed along bar. Chest is spread and wrists are slightly flexed.
Pull bar up off floor by extending hips and knees. Jump up as high as possible and shrug shoulders.
Bend knees slightly and lower barbell to mid-thigh position. Slowly lower bar with taut lower back and trunk close to vertical.
- Spine (Thoracic, Lumbar)