Bending the elbows
Hold a fixed elbow angle; bending and straightening turns it into a tricep pushdown.
Isolation · Cable
The straight arm pulldown has you sweep a bar or rope from overhead down to your thighs with your elbows locked in a slight bend. It trains the lats with almost no biceps involvement, making it useful for learning to feel your lats and as a finisher after rows and pulldowns.
The lats pull the arms down from overhead to the hips (shoulder extension). With the elbows fixed the biceps barely help; the long head of the triceps and the rear delts assist a little.
Hold a fixed elbow angle; bending and straightening turns it into a tricep pushdown.
Keep your hip hinge angle steady so the lats, not body movement, move the weight.
Use a load you can control through the full arc; this lift works best with moderate weight and a strong squeeze.
Surpass starts the straight arm pulldown at 12–15 reps with about 1 reps in reserve. As an isolation exercise it fits well after your main compound lifts.
Use 10-15 reps and add one pin once you can hold the bottom squeeze on every rep. It works well as a lighter primer before heavy back work or a finisher after it.
Surpass shows what you lifted last time beside a target for this set, and adjusts it from your reps and RIR. Free on iPhone, no account needed.
These train the same main muscles. Swap when the equipment is busy, something hurts, or progress has stalled for several weeks.
It mainly works the lats, with small help from the rear delts and the long head of the triceps. The biceps do very little because the elbows do not bend.
A rope lets your hands come apart and slightly behind your body at the bottom, which some people feel more in the lats. A bar is simpler and more stable. Use whichever you feel better.