Chest Fly (TRX / Suspension Trainer)
A suspension-based isolation exercise that mimics a dumbbell fly motion, emphasizing chest and shoulder engagement through an arcing motion.
Instructions
- Anchor the TRX straps at mid-length.
- Face the anchor point and grip the handles at chest height.
- Walk your feet forward to achieve the desired angle—more horizontal for harder resistance.
- Position your body in a slight forward lean with arms slightly bent.
- Keep your core engaged and your body in a straight line.
- Perform a fly motion by opening your arms outward and downward in an arcing path.
- Feel a stretch across your chest and shoulders at the bottom of the movement.
- Use your chest and shoulders to bring your arms back together in a controlled arc.
- Repeat for the desired number of reps.
Tips
- Maintain a slight bend in your elbows throughout—this is not a straight-arm movement.
- Keep your chest high and avoid excessive spinal extension.
- The arcing motion should be smooth and controlled, not jerky.
- Adjust your body angle to modify resistance—more horizontal = harder.
- Focus on the chest contraction at the top of each repetition.
Recommended starting values
Sensible novice starting points for each goal, for a lifter aged 25–40. Scale down for smaller frames or older lifters. Treat the first set of any session as a discovery set.
| Goal | Sets | Reps |
|---|---|---|
| Gain strength | 3 | 9 reps |
| Build muscle | 3 | 13 reps |
| Build endurance | 3 | 16 reps |
Alternatives
Exercises that target the same muscles with the same force and mechanic.
High Fly (Cable)
Learn more about high fly (cable) beginner strength
Iron Cross Crunch (Bench)
Learn more about iron cross crunch (bench) expert strength
Kneeling Crossover (Cable)
Learn more about kneeling crossover (cable) intermediate strength
Split Fly (TRX / Suspension Trainer)
Learn more about split fly (trx / suspension trainer) intermediate strength
Standing Fly (Cable)
Learn more about standing fly (cable) intermediate strength