Core · Bodyweight

Bent Leg Half Wipers

How to do the bent leg half wipers, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.

Animated demonstration of the Bent Leg Half Wipers
Equipment
Bodyweight
Difficulty
Intermediate
Logged as
Reps
Movement
Rotation
Mechanic
Isolation

How to do it

Lie on your back with arms out wide for support and knees bent to about 90 degrees, thighs over your hips. Brace your core and rotate your bent legs to one side toward the floor, stopping before your shoulders lift, then control them back to center and over to the other side. The bent-leg position shortens the lever and reduces the load.

  1. 1Obliques controlling the rotation side to side
  2. 2A braced core keeping the shoulders flat
  3. 3A slow, controlled return through center

Common mistakes

  • Letting the legs drop fast and bounce
  • Lifting the opposite shoulder off the floor
  • Straightening the legs and overloading the low back

Muscles worked

The bent leg half wipers mainly works the obliques and lower abs, with the hip flexors and upper abs assisting.

  • ObliquesPrimary
  • Lower AbsPrimary
  • Hip FlexorsSupport
  • Upper AbsSupport
  • Lower BackMinor
  • QuadsMinor
  • AdductorsMinor

Kovo programs the bent leg half wipers for you and tracks it every session.

We build your whole program, drop the right lifts into each workout, and adjust your weights as you get stronger. Free on iOS and Android.

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Last reviewed June 2026.