Back Scrub

Back Scrub Exercise Description

Back Scrub is a bodyweight shoulder control drill that mirrors an unweighted overhead triceps extension while you actively reach the hand behind the neck. It trains coordinated elbow flexion with the shoulder in flexion and external rotation, emphasizing the triceps long head, anterior deltoid, and the rotator cuff for humeral head control. The scapular upward rotators (serratus anterior and trapezius) help maintain a smooth overhead path as you keep the ribcage stacked over the pelvis and the neck neutral. You’ll alternate arms each repetition: one arm bends to reach down between the shoulder blades while the other remains straight, reaching tall overhead. The goal is precise, pain‑free range with steady posture, promoting end‑range control of the upper arm and clean overhead mechanics without lumbar arching or shoulder shrugging.

Muscle Groups: Delts, Shoulders, Triceps
Target Muscles: Deltoid - Anterior, Triceps Brachii - Long Head
Assisting Muscles: Triceps Brachii - Lateral Head
Stabilizing Muscles: Infraspinatus, Serratus Anterior, Teres Minor, Trapezius - Lower Fibers, Trapezius - Upper Fibers
Body Area: Upper Body
Body Parts: Arms, Shoulders, Upper Arms
Body Surface: Back, Front
Body Symmetry: Unilateral
Equipment: Bodyweight
Exercise Patterns: Other
Exercise Type: Strength
Functional Grouping: Elbow Extensors, Shoulder Flexors
Joint Involvement: Single-joint
Muscle Location: Front Shoulder, Inner Tricep
Movement Direction: Vertical
Muscle Position: Anterior, Posterior
Gender: Female

How To Do The Back Scrub Exercise

‘- Stand tall with feet hip‑width, soft knees, and a neutral spine; ribs stacked over pelvis.
– Raise both arms overhead, elbows straight, thumbs pointing slightly back; reach long without shrugging.
– Keep one arm straight overhead as the other bends: bring the hand down behind the neck toward the upper back.
– Keep the bending arm’s upper arm close to your ear; elbow points up, wrist neutral.
– Maintain a quiet ribcage (no low‑back arch) and a long neck (no forward head).
– Move only to a comfortable, pain‑free end range; feel tension along the back of the upper arm and side of the shoulder.
– Return the hand overhead under control; switch sides and repeat the same path.
– Breathe steadily; keep movements slow, smooth, and symmetrical side to side.

Back Scrub Tips

‘- Stand tall with feet hip-width, soft knees, and a neutral spine with ribs stacked over your pelvis.
– Raise both arms overhead with elbows straight and thumbs pointing slightly back as you reach long without shrugging.
– Keep one arm straight overhead while the other bends, bringing the hand down behind your neck toward your upper back.
– Keep the bending arm’s upper arm close to your ear with the elbow pointing up and the wrist neutral.
– Maintain a quiet ribcage by avoiding low-back arching as you move.
– Keep a long neck and avoid letting your head jut forward.
– Move only to a comfortable, pain-free end range, noticing tension along the back of the upper arm and side of the shoulder.
– Return the hand overhead along the same path with controlled movement before switching sides.
– Breathe steadily and keep the motion slow, smooth, and symmetrical from side to side.

Back Scrub Beginner Introduction

Back Scrub is a standing, bodyweight drill centered on shoulder control and smooth overhead motion. Both arms travel overhead, with one arm staying long while the other bends so the hand lowers toward the upper back. This pattern resembles an overhead triceps extension without weights, combining elbow bending with the arm lifted and gently turned outward. Throughout the movement, the body remains upright with ribs over hips and the head aligned, so the action comes from the shoulders and arms rather than the lower back or neck.

The exercise highlights the back of the upper arm, the front of the shoulder, and the small stabilizing muscles around the shoulder joint. Muscles around the shoulder blades and ribcage guide the arm along a clear overhead path, encouraging smooth, balanced motion on both sides. The emphasis is on calm, controlled movement at the edge of comfortable range, helping refine overhead positioning without excessive back arching or shoulder shrugging.