Exercise
ARM CIRCLES
Form cues
About
Arm Circles are a shoulder and thoracic mobility warm-up drill that moves the glenohumeral joint through internal and external rotation while activating the rotator cuff, deltoids, and serratus anterior. Forward circles warm the anterior chain; reverse circles target the posterior shoulder and rear deltoid. They are among the simplest and most effective pre-training shoulder preparation movements, particularly valuable before overhead pressing, pulling, or throwing activities.
Instructions
Step-by-step technique
Stand in an athletic stance
Begin by standing with your feet hip-width apart and your spine in a neutral, upright position. Extend your arms out to the sides so they are parallel to the floor, forming a T-shape with your body.
engage your coreInitiate small forward circles
Begin moving your arms in small, controlled forward circles, focusing on movement originating from the shoulder joint. Maintain a steady tempo while keeping your arms locked at shoulder height throughout the entire motion.
keep arms straightGradually increase circle size
As your shoulders begin to feel warmer, progressively increase the diameter of the circles. Focus on maintaining a smooth, rhythmic motion without letting your arms drop toward your waist or deviate from the horizontal plane.
reach through fingersReverse the rotational direction
After completing the forward set, change the direction of your movement by rotating your arms in backward circles. Start small once again and gradually increase the range of motion to target the rear deltoids.
retract your shoulder bladesMaintain torso stability throughout
Throughout both directions, keep your torso completely still and avoid rotating your upper body or arching your lower back. Focus on isolating the movement exclusively to your glenohumeral joints to maximize the intended mobility benefits.
stay tall and steadyCommon mistakes
What goes wrong — and why
Moving only at the shoulder joint while the torso compensates
Leaning to one side or swaying the torso to accommodate a larger circle range suggests shoulder mobility limitations that arm circles alone will not resolve.
Keep the torso completely still. Circle only as large as the shoulder can move cleanly without compensation. Gradually increase range as mobility improves.
Performing circles too fast
Rapid circles are a warm-up of momentum, not mobility. The joint capsule and surrounding muscles do not have time to respond to the movement.
Use a deliberate 2-second per circle pace. The goal is to lubricate and warm the joint, not to demonstrate existing range of motion.
Skipping the reverse direction
Many people only circle forward, missing the posterior shoulder warm-up that reverse circles provide. Forward-only warm-up leaves the rear deltoid and external rotators unprepared.
Always complete an equal number of circles in each direction. Use the reverse circles as an opportunity to open the posterior capsule before pulling movements.
Variations · Progressions · Regressions
Adaptations for every level
Small Arm Circles (Static Hold)
Hold arms horizontally and perform very small circles (fist-sized). Activates rotator cuff stabilizers with minimal joint demand — ideal for post-shoulder injury warm-up.
Cross-Body Arm Circles
Circle one arm while the other draws circles in the opposite direction simultaneously. Adds a coordination component and challenges bilateral shoulder independence.
Loaded Arm Circles (Light Plate)
Hold a 2.5–5 kg plate in each hand and perform circles. The load increases the demand on the rotator cuff and deltoids, transitioning the movement from mobility to strength-endurance.