CoreHip FlexorsintermediateCommon
Jackknife Sit-Up
How to do it
- 1The jackknife sit-up is a bodyweight exercise targeting the abdominal muscles.
Coaching cues
- Lie flat on your back with your legs extended and your arms overhead.
- Engage your core and lift your legs and upper body simultaneously, reaching your hands towards your toes.
- Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.
- Repeat for the desired number of repetitions.
Equipment
bodyweight
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