Sitting Jack On A Padded Stool
Sitting Jack On A Padded Stool Exercise Description
Sitting Jack on a padded stool is a seated, no‑impact version of the classic jack arm pattern that emphasizes controlled shoulder abduction to overhead and return to the sides. The primary movers are the deltoids, assisted by the rotator cuff for humeral head control and the scapular upward rotators (serratus anterior and upper/lower trapezius) to position the shoulder blade. Seated posture reduces lower‑body demand, letting you focus on neutral spine, rib control, and smooth scapulohumeral rhythm rather than momentum. Keep the neck relaxed, ribs stacked over the pelvis, and allow the scapulae to upwardly rotate and posteriorly tilt as the arms travel overhead. Using a thumbs‑up or palms‑forward hand position encourages gentle external rotation at the shoulder throughout the range. This variation is space‑efficient, uses only body weight, and helps reinforce precise overhead mechanics while minimizing impact.
- Muscle Groups: Delts, Shoulders
- Target Muscles: Deltoid - Lateral
- Assisting Muscles: Serratus Anterior, Supraspinatus, Trapezius - Lower Fibers, Trapezius - Upper Fibers
- Stabilizing Muscles: Infraspinatus, Multifidus, Subscapularis, Teres Minor, Transversus Abdominis
- Body Area: Upper Body
- Body Parts: Shoulders
- Body Surface: Side
- Body Symmetry: Bilateral
- Equipment: Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Shoulder Abductors
- Joint Involvement: Single-joint
- Muscle Location: Side Shoulder
- Movement Direction: Vertical
- Muscle Position: Lateral
- Gender: Male
How To Do The Sitting Jack On A Padded Stool Exercise
‘- Place a stable, non‑wheeled padded stool on a non‑slip surface.
– Sit on the front third of the stool; feet flat, hip‑ to shoulder‑width apart; knees roughly 90°.
– Stack ribs over pelvis; brace lightly; lengthen the spine; keep shoulders down and back (light scapular set).
– Start with arms at your sides, wrists neutral, palms forward or thumbs pointing up.
– Inhale; raise both arms in a wide arc to overhead within a comfortable range, allowing the shoulder blades to upwardly rotate without shrugging.
– Keep biceps near the ears without flaring the ribs or arching the low back.
– Exhale; lower the arms along the same path to your sides with control.
– Maintain steady posture—no bouncing, leaning, or swinging.
– If overhead range is limited, lift only to shoulder height while keeping form.
Sitting Jack On A Padded Stool Tips
‘- Place the padded stool on a non‑slip surface and make sure it is stable and non‑wheeled before starting.
– Sit on the front third of the stool with feet flat, hip‑ to shoulder‑width apart, and knees at roughly 90°.
– Stack your ribs over your pelvis, brace lightly, and lengthen your spine to maintain a neutral posture.
– Keep your shoulders down and back with a light scapular set and your neck relaxed throughout the movement.
– Start with arms at your sides, wrists neutral, using a palms‑forward or thumbs‑up position to maintain gentle external rotation.
– As you inhale, raise your arms in a wide arc overhead within a comfortable range, allowing the shoulder blades to upwardly rotate and posteriorly tilt without shrugging.
– Keep your biceps near your ears while avoiding rib flare or arching through the low back.
– As you exhale, lower your arms along the same path back to your sides with control, avoiding momentum.
– Maintain a steady, upright posture with no bouncing, leaning, or swinging of the torso.
– If your overhead range is limited, lift only to shoulder height while keeping all alignment and posture cues.
Sitting Jack On A Padded Stool Beginner Introduction
Sitting Jack on a padded stool is a seated arm‑movement drill that highlights smooth, controlled lifting of the arms from the sides to overhead and back down. Because it is performed on a stool, the legs play a smaller role and attention shifts toward steady upper‑body alignment and relaxed breathing. The motion centers on the shoulders and arms, with the muscles around the shoulder blades and the smaller stabilizers of the joint working together to guide the arms in a wide, comfortable arc.
This no‑impact variation uses only body weight and a compact setup, making it suitable for tight spaces. The seated position encourages an upright, balanced torso, with the chest and ribs stacked over the hips and the neck free of excess tension. As the arms rise, the shoulder blades glide and tilt naturally so the arms can move overhead without reliance on swinging or jerking. A thumbs‑up or open‑palm position gently rotates the upper arms outward, supporting clean, repeatable overhead mechanics and helping build awareness of how the shoulders, upper back, and core interact during reaching movements.