How to do the Jack-knife Floor
- 1Lie on your back with your arms extended overhead and legs straight.
- 2Simultaneously lift your legs and upper body towards each other, reaching your hands towards your feet.
- 3Lower your arms and legs back to the starting position in a controlled manner.
Muscle group
Core
Type
Reps Only
Equipment
None needed
TRACK THE JACK-KNIFE FLOOR IN W8M8
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