Cable Fly With Chest Supported is an intermediate cable exercise for the chest (pectorals), with the front deltoids and biceps (stabilizers) assisting. Most lifters train it for 3 to 4 sets of 10 to 15 reps.
A chest-supported cable fly that removes momentum entirely: with your torso braced against the pad, the cables pull from behind while you sweep your arms together in a wide arc. The support isolates the pecs harder than a free-standing fly and keeps constant tension through the whole range, including the squeeze at the top.
Use the chest supported cable fly as an isolation movement after your main presses on a chest day, or as a pre exhaust before pressing if you struggle to feel the pecs. Perform 3 to 4 sets of 10 to 15 reps. Because the bench removes all swing and the cables keep tension at the top, it is a pure hypertrophy exercise for the sternal and lower chest fibres.
Set the bench incline between 30 and 45 degrees with the low pulleys level with or slightly ahead of your shoulders when you lie down. Start with 5 to 10 kg per side and add 2.5 kg once every rep finishes with the handles touching under the bench for a one second squeeze. The most common fault is losing the slight elbow bend and pressing the weight up with the triceps. Fix it by locking the elbow angle before the first rep and imagining hugging a wide tree trunk.
It isolates the pectoralis major, with the sternal and lower fibres doing most of the work when the handles sweep from below and out to directly under the chest. The front delts assist and the biceps work as stabilisers.
It is stricter, so it is better for isolation and for lifters who swing or shrug during standing flyes. Standing flyes let you use more weight and train the chest with the body upright, which carries over to pressing more directly.
Begin at 5 to 10 kg per side and aim for 10 to 20 kg per side as an intermediate. The lever arm is long and the pecs are already fatigued from pressing, so loads stay light.
Log your cable fly with chest supported sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.