Core · Bodyweight
Knee Tap Sky Reach
How to do the knee tap sky reach, the muscles it works, and the mistakes to avoid. Pulled straight from the Kovo app's exercise library.
- Equipment
- Bodyweight
- Difficulty
- Beginner
- Logged as
- Reps
- Movement
- Flexion
- Mechanic
- Compound
How to do it
Stand tall, then drive one knee up and tap it with the opposite hand across your body. As you lower the leg, reach the same hand up toward the sky and extend tall. Alternate sides in a flowing, rhythmic pattern.
- 1A cross-body crunch through the obliques on the knee tap
- 2A full reach and tall stretch as the hand goes up
- 3The standing leg staying balanced through the switch
Common mistakes
- Collapsing forward to meet the knee with the hand
- Skipping the full overhead reach at the top
- Moving so fast you lose your balance
Muscles worked
The knee tap sky reach mainly works the obliques, with the lower abs, hip flexors, upper abs, and quads assisting.
- ObliquesPrimary
- Lower AbsSupport
- Hip FlexorsSupport
- Upper AbsSupport
- QuadsSupport
- LatsMinor
- Upper TrapsMinor
- GlutesMinor
- HamstringsMinor
- CalvesMinor
- Front DeltsMinor
- Side DeltsMinor
- Tibialis AnteriorMinor
Kovo programs the knee tap sky reach 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.
More abs & core exercises
- How to do the ab wheel rollout
- How to do the ankle tap plank
- How to do the ankle taps
- How to do the resistance band dead bugs
- How to do the resistance band pallof press
- How to do the rollout
Last reviewed June 2026.