Exercise guide
Arm Circles
- Beginner
- Isolation
- Rep-based
- Shoulders
- Upper arms
Arm circles are a low-impact isolation exercise that improves shoulder mobility and warms up the deltoids and rotator cuff. They are highly effective for increasing blood flow and joint lubrication before heavier upper-body movements.
Reviewed by the Crucible Fit team · Updated June 2026
Muscles worked
Setup
- Stand tall with your feet shoulder-width apart and your core engaged.
- Extend your arms straight out to the sides at shoulder height, forming a 'T' shape.
- Position your palms facing downward and keep your fingers extended.
How to do it
- Begin making small, controlled circular motions with your hands, initiating the movement from the shoulder joint.
- Maintain a steady, rhythmic breathing pattern, inhaling and exhaling naturally as you move.
- Perform the movement for the prescribed time or reps, then reverse the direction of the circles.
- Maintain a moderate tempo, focusing on stability rather than speed.
Form checklist
- Keep your arms parallel to the floor and avoid letting them sag.
- Maintain a neutral spine and avoid arching your lower back as you move.
- Keep your shoulders depressed (away from your ears) to avoid shrugging.
- Ensure the movement is isolated to the shoulder joint, keeping the elbows locked.
Pro tips
- Focus on keeping your shoulder blades slightly retracted to provide a stable base for the humerus.
- Imagine drawing perfect, consistent circles with your fingertips to ensure a smooth range of motion.
- Engage your core and glutes to prevent your torso from swaying as the circles get larger.
Make it harder
- Gradually increase the diameter of the circles to engage more of the pectorals and serratus anterior.
- Hold light dumbbells or weighted plates (1-2 lbs) to significantly increase the endurance demand on the deltoids.
Frequently asked
- What muscles does the arm circles work?
- The arm circles primarily targets the deltoids and pectorals, and also works the biceps and forearms as secondary muscles.
- What equipment do you need for the arm circles?
- The arm circles requires no equipment — just your body weight.
- Is the arm circles good for beginners?
- Yes. The arm circles is a beginner-friendly movement and a strong foundation to build on.