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.
4
Repeat for the desired number of repetitions.
Pro Tips
•Hold the band overhead and simultaneously lift your legs and arms to meet in the middle, forming a V shape.
•Keep the band taut throughout the movement by holding tension even at the bottom position.
•Lower both your arms and legs slowly and do not let them crash to the floor.
Common Mistakes
•Bending the knees to bring the feet closer instead of keeping the legs straight for maximum ab challenge.
•Only reaching halfway up instead of fully closing the V shape at the top.
•Letting the arms and legs fall freely on the eccentric instead of controlling the descent.