Exercise guide
Cable Single Arm Low Fly
- Intermediate
- Compound
- Rep-based
- Back
- Chest
- Shoulders
This unilateral isolation exercise targets the upper pectoral fibers and anterior deltoids by moving the arm in a low-to-high arc. It allows for a greater range of motion and improved mind-muscle connection compared to bilateral versions, while also challenging core stability.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Set the cable pulley to the lowest position and attach a D-handle.
- Stand sideways to the machine and grab the handle with the hand furthest from the pulley using an underhand (supinated) grip.
- Step away from the machine to create tension, adopting a staggered stance with the foot opposite the working arm forward.
- Grip the machine frame or a nearby pull-up bar with your non-working hand to stabilize your torso.
How to do it
- With a slight, fixed bend in your elbow, exhale as you sweep your arm upward and across your body toward the midline at chest height.
- Focus on bringing your inner bicep toward your upper sternum to maximize the contraction of the upper chest.
- Inhale as you slowly lower the weight back to the starting position, stopping just before the weight stack touches to maintain tension.
- Maintain a controlled tempo, taking approximately 2 seconds to lift and 2 seconds to lower the weight.
Form checklist
- Keep your shoulders pinned back and down; do not let the shoulder shrug toward your ear during the lift.
- Maintain a consistent slight bend in the elbow to protect the joint and keep tension on the muscles.
- Keep your torso stationary and avoid using momentum or 'leaning' into the movement.
- Ensure the hand follows a wide arc rather than a straight pressing motion.
Pro tips
- Cross the midline of your body at the top of the movement to achieve a peak contraction in the clavicular head of the pectoralis major.
- Focus on the 'mind-muscle connection' by imagining you are trying to touch your bicep to your chin.
Make it harder
- Incorporate a 2-second isometric hold at the peak of the contraction (top of the movement).
- Perform a slow eccentric phase, taking 4-5 seconds to return the handle to the starting position.
Frequently asked
- What muscles does the cable single arm low fly work?
- The cable single arm low fly primarily targets the pectorals, and also works the lats and serratus anterior as secondary muscles.
- What equipment do you need for the cable single arm low fly?
- The cable single arm low fly uses cable.
- Is the cable single arm low fly good for beginners?
- The cable single arm low fly is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.