Landmine Floor One Arm Chest Fly
Perform the Landmine Floor One Arm Chest Fly to effectively isolate your pectorals.
Description
A strength exercise that isolates the pectorals, performed by lying on the ground and pulling a weight attached to a landmine barbell from the side up towards the ceiling.
How to Do Landmine Floor One Arm Chest Fly
- 1Setup
Position a landmine barbell at your side, lying supine on the floor with your working arm closest to the barbell. Grab the end of the barbell sleeve with an overhand grip, keeping your arm extended but with a slight bend in your elbow.
- 2Setup
Ensure your feet are flat on the floor, knees bent, and your non-working arm is extended out to the side for stability or resting on your abdomen. Engage your core to maintain a flat lower back against the floor.
- 3
Inhale deeply, then exhale as you initiate the movement by sweeping the barbell in an arc across your body towards the ceiling, maintaining the slight elbow bend. Focus on squeezing your chest muscles as your hand reaches directly above your sternum.
- 4
Slowly and with control, reverse the motion, allowing the barbell to return along the same arc to the starting position. Feel a stretch in your pectoral muscles at the bottom of the movement before beginning the next repetition.
- 5
Keep the movement controlled throughout, avoiding any jerking or momentum to ensure constant tension on the chest.
Tips
- Maintain a slight bend in your elbow throughout the entire movement to protect the joint and keep tension on the chest, preventing it from turning into a press.
- Focus on the mind-muscle connection, visualizing your pectoral muscles contracting to drive the barbell across your body.
- Control the eccentric (lowering) phase, taking 2-3 seconds to return the weight to the starting position to maximize muscle engagement and promote growth.
- Keep your shoulder blade retracted and depressed to stabilize the shoulder joint and prevent shrugging, ensuring the chest is the primary mover.
Common Mistakes
- ×Bending the elbow too much turns the fly into a press, so keep the elbow angle consistent to isolate the chest effectively.
- ×Using momentum to swing the weight up reduces pectoral activation; instead, initiate the movement with a controlled squeeze of your chest.
- ×Allowing the lower back to arch off the floor compromises stability and can lead to injury; keep your core engaged and lower back pressed against the ground.
Variations

Band Chest Fly
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Kettlebell One Arm Floor Press
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Dumbbell One Arm Floor Fly
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Dumbbell One Arm Decline Chest Press
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