Exercise guide
Landmine Single Arm Side Low Fly
- Intermediate
- Compound
- Rep-based
- Chest
- Shoulders
- Upper arms
The Landmine Single Arm Side Low Fly targets the lower and inner pectoral fibers by utilizing a unique scooping arc that provides constant tension. This unilateral isolation movement improves chest symmetry and emphasizes the peak contraction at the midline of the body.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Place a barbell in a landmine attachment and stand perpendicular to the bar.
- Position yourself so the end of the barbell is at hip level on your working side.
- Grip the very end of the barbell sleeve with an underhand (palms up) or neutral grip.
- Assume a staggered stance with the foot opposite your working arm forward for maximum stability.
How to do it
- Inhale to brace your core and maintain a slight bend in your elbow throughout the movement.
- Exhale as you sweep the bar across your body in a wide, low arc toward the center of your chest.
- Squeeze your pectoral muscle hard at the top of the movement when the bar is in front of your sternum.
- Inhale as you slowly lower the bar back to the starting position using a controlled 3-second eccentric tempo.
Form checklist
- Keep your torso stationary; do not rotate your hips or shoulders to help move the weight.
- Maintain a 'proud chest' posture and keep your shoulder blade retracted and depressed.
- Ensure the movement comes from the shoulder joint, not by bending and straightening the elbow.
- Stop the downward phase once your arm is in line with your torso to avoid excessive shoulder strain.
Pro tips
- Focus on 'scooping' the weight toward your opposite shoulder to better engage the sternal fibers of the chest.
- Visualize pushing your bicep against the side of your pec at the top of the rep to maximize the mind-muscle connection.
Make it harder
- Pause for 2 seconds at the peak contraction to increase time under tension for the inner chest.
- Incorporate a '1.5 rep' style by performing a full rep followed by a half rep from the bottom to the mid-point.
Frequently asked
- What muscles does the landmine single arm side low fly work?
- The landmine single arm side low fly primarily targets the pectorals, and also works the deltoids, serratus anterior, and triceps as secondary muscles.
- What equipment do you need for the landmine single arm side low fly?
- The landmine single arm side low fly uses barbell.
- Is the landmine single arm side low fly good for beginners?
- The landmine single arm side low fly is rated intermediate. Build a base with simpler variations first, then progress to it with light load and strict form.