band jack knife sit-up
How to do it
- 1Lie flat on your back with your legs straight and your arms extended overhead, holding the band.
- 2Engage your abs and lift your legs and upper body simultaneously, bringing your hands towards your feet.
- 3Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.
- 4Repeat for the desired number of repetitions.
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