Swinging for momentum
Pause in the dead hang and lower slowly so each rep starts from stillness.
Isolation · Pull-up bar
Hanging from a pull-up bar and raising your legs by curling the pelvis up. It trains the lower abs and hip flexors and also demands grip strength. Best for intermediate lifters; beginners can start with knee raises.
The hip flexors lift the legs, but the abs do the real work when you curl the pelvis up and tilt it back. Without that posterior tilt it becomes mostly a hip flexor exercise.
Pause in the dead hang and lower slowly so each rep starts from stillness.
Think about tucking your tailbone up toward the bar at the top.
Use straps or ab slings so the abs, not the hands, limit the set.
Surpass starts the hanging leg raise at 10–20 reps with about 1 reps in reserve. As an isolation exercise it fits well after your main compound lifts.
Start with bent-knee raises and move to straight legs once you can do 10-15 controlled reps. Later progress to toes-to-bar or add a light dumbbell between the feet.
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.
They emphasize the lower part of the rectus abdominis when you curl the pelvis up. The whole muscle contracts, but the bottom-up movement shifts the feel lower.
Knee raises are easier because the lever is shorter. Use them to build up, then move to straight-leg raises for more challenge.