The band jack knife situp is an abdominal exercise that uses a resistance band to increase difficulty. It targets the abs and also works the hip flexors. The movement involves simultaneously lifting the legs and upper body while holding a resistance band, requiring core strength and coordination.
Also Works
Hip Flexors
How to Perform
1
Lie flat on your back with your legs straight and your arms extended overhead, holding the band.
2
Engage your abs and lift your legs and upper body simultaneously, bringing your hands towards your feet.
3
Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.