What is a sensible starting point for the bent-knee hanging windshield wiper, and what should you own first?

Start with 2 to 3 sets of 4 to 6 reps per side, keeping the sweep small and close to the centerline before working toward a full sweep to the elbow. You should already hold a stable hanging knee raise and a dead hang of 30 seconds or more before adding rotation, since the grip and shoulders carry real load throughout. Widen the sweep gradually once the pelvis, not the ribcage, is clearly doing the turning.

What can replace the bent-knee hanging windshield wiper without a pull-up bar?

The bent-knee windshield wiper done lying on the floor trains the same knee-tucked rotation with no bar needed. A sturdy set of gymnastic rings or a low bar you can hang from with bent knees also works if a standard pull-up bar is not available.

Who is the bent-knee hanging windshield wiper for, and who should avoid it?

It's a bridge between hanging knee raises and the full straight-leg wiper, building rotational core strength alongside grip and lat endurance. It's a poor choice for anyone who can't yet hold a controlled hanging knee raise, since adding rotation to an unstable hang mostly trains swinging, not the obliques.

Advanced

Bent-Knee Hanging Windshield Wiper

This is the bridge between a hanging leg raise and the full straight-leg wiper. Bending the knees shortens the lever so you can own the rotational control before adding length. It hammers the obliques through resisted rotation while the lats and grip fight to keep you stable on the bar. Use it as your first true wiper progression once knee raises feel easy.

Equipment: Pull-Up Bar
Body part: Abs, Lats
Type: Functional, Strength
Browse by muscle: Abdominal External Oblique, Lower Rectus Abdominals
Browse by movement: Rotation

How to do it

1
Hang from a pull-up bar with an overhand grip slightly wider than shoulders and engage the lats to depress the shoulders.
2
Raise both knees until the thighs are above parallel and the shins are tucked toward your chest.
3
Keeping the knees together and tucked, rotate the hips to sweep both knees toward one elbow.
4
Control the return through center, then sweep to the opposite side without letting the legs drop.
5
Exhale as you rotate, inhale back through the middle, and keep the movement smooth rather than swinging.
6
Finish the set, then lower the legs under control to a dead hang.

Tips

Pull down on the bar as if doing a straight-arm pulldown to stop your body from swaying.
Rotate from the waist, not by throwing the knees; the pelvis should turn while the ribcage stays quiet.
Keep the knees pinned together so the obliques do the work instead of momentum.

Variations

Common mistakes

The whole body swings back and forth on the bar between reps instead of settling into a still hang first, so each rotation starts from an already-moving base.
The rotation stalls out around the elbow instead of continuing smoothly, which usually means the ribcage rotated with the pelvis rather than staying quiet the way a trunk-driven turn requires.
The knees drop lower than the hips partway through the sweep, letting gravity pull the legs down and turning a controlled rotation into a swinging drop.
Losing the shin tuck partway through the set lets the legs straighten and lengthen the lever right when grip and shoulders are already fatigued from earlier reps.

Frequently asked

What is a sensible starting point for the bent-knee hanging windshield wiper, and what should you own first?: Start with 2 to 3 sets of 4 to 6 reps per side, keeping the sweep small and close to the centerline before working toward a full sweep to the elbow. You should already hold a stable hanging knee raise and a dead hang of 30 seconds or more before adding rotation, since the grip and shoulders carry real load throughout. Widen the sweep gradually once the pelvis, not the ribcage, is clearly doing the turning.
What can replace the bent-knee hanging windshield wiper without a pull-up bar?: The bent-knee windshield wiper done lying on the floor trains the same knee-tucked rotation with no bar needed. A sturdy set of gymnastic rings or a low bar you can hang from with bent knees also works if a standard pull-up bar is not available.
Who is the bent-knee hanging windshield wiper for, and who should avoid it?: It's a bridge between hanging knee raises and the full straight-leg wiper, building rotational core strength alongside grip and lat endurance. It's a poor choice for anyone who can't yet hold a controlled hanging knee raise, since adding rotation to an unstable hang mostly trains swinging, not the obliques.

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