Rollball Seated Single Leg Shoulder Flexor Depressor Retractor
Rollball Seated Single Leg Shoulder Flexor Depressor Retractor Exercise Description
This drill uses a stability ball to combine single‑leg seated balance with controlled shoulder flexion and sound scapular mechanics. You sit tall on the ball, lift one foot slightly, and raise the opposite arm to shoulder height while keeping the neck relaxed and ribs stacked over the pelvis. Primary movers are the anterior deltoid and rotator cuff, supported by scapular stabilizers including the middle/lower trapezius, rhomboids, and serratus anterior. The unstable seat and single‑leg stance also challenge trunk and hip stabilizers (notably the gluteus medius) to maintain an upright posture. The focus is neutral spine, quiet ribcage, and “shoulders down” positioning to limit upper‑trap dominance. Move slowly through a comfortable, pain‑free range to reinforce smooth scapulohumeral rhythm without shrugging or arching the lower back.
- Muscle Groups: Delts, Shoulders
- Target Muscles: Deltoid - Anterior
- Stabilizing Muscles: Gluteus Medius, Rhomboid Major, Serratus Anterior, Trapezius - Lower Fibers, Trapezius - Middle Fibers
- Body Area: Upper Body
- Body Parts: Shoulders
- Body Surface: Front
- Body Symmetry: Unilateral
- Equipment: Rollball
- Exercise Patterns: Other
- Exercise Type: Stretching
- Functional Grouping: Shoulder Flexors
- Joint Involvement: Single-joint
- Muscle Location: Front Shoulder
- Movement Direction: Other
- Muscle Position: Anterior
- Gender: Male
How To Do The Rollball Seated Single Leg Shoulder Flexor Depressor Retractor Exercise
‘- Sit centered on a stability ball; feet hip‑width, knees and hips near 90°, spine neutral.
– Stack ribs over pelvis, chin slightly tucked, gaze forward; breathe naturally.
– For safety, position near a wall or bench for light fingertip support if needed.
– Press one foot firmly into the floor (tripod pressure through heel, big toe, little toe).
– Gently lift the opposite foot an inch off the floor; keep the pelvis level.
– On the arm side you’ll move, set the shoulder blade slightly down and back—avoid shrugging.
– With the thumb pointing up, raise that arm forward to about shoulder height; elbow soft.
– Keep ribs from flaring; allow the shoulder blade to glide smoothly without winging.
– Pause briefly with the neck long and collarbones wide; maintain steady breathing.
– Lower the arm under control; keep balance and spinal alignment unchanged.
– Place the lifted foot down, reset posture, and perform on the other side.
– Form checks: no leaning into the ball, no lumbar arching, knee tracks over mid‑foot.
Rollball Seated Single Leg Shoulder Flexor Depressor Retractor Tips
‘- Sit centered on the ball with feet hip‑width and knees and hips near 90° to help maintain a neutral spine.
– Stack your ribs directly over your pelvis with a slight chin tuck and gaze forward.
– If needed, position near a wall or bench for light fingertip support to help with balance.
– Press the working foot firmly into the floor with tripod pressure through heel, big toe, and little toe.
– When lifting the opposite foot, keep the pelvis level and avoid leaning into the ball.
– Set the moving side shoulder blade slightly down and back before raising the arm, and avoid shrugging.
– Raise the thumb‑up arm only to about shoulder height with a soft elbow while keeping the neck long and collarbones wide.
– Keep the ribs from flaring and avoid arching the lower back as the arm lifts and lowers.
– Allow the shoulder blade to glide smoothly without winging to support good scapulohumeral rhythm.
– Move the arm slowly through a comfortable, pain‑free range while maintaining steady breathing and unchanged spinal alignment.
Rollball Seated Single Leg Shoulder Flexor Depressor Retractor Beginner Introduction
single‑leg seated balance turns a basic stability ball sit into a coordination drill for the whole body. The person sits upright on the ball, lightly unweights one foot, and lifts the opposite arm forward to roughly shoulder level with the thumb pointing up. The unstable surface challenges balance while the raised leg and moving arm work together in a cross‑body pattern. Throughout the motion, the head, ribcage, and hips stay aligned, with easy, natural breathing and a relaxed neck.
This exercise highlights precise control around the shoulders and shoulder blades. The front of the shoulder and the rotator cuff guide the arm lift, while muscles across the upper back and along the ribs help the shoulder blade glide smoothly. At the same time, the core and hips, including the side of the hips and upper glutes, contribute to steady posture so the trunk does not sway or arch. The movement is usually performed in a slow, steady way to reinforce clean shoulder motion without extra shrugging or wobbling on the ball.