Jackknife Sit-ups / Crunch / Toe Touches
- Lie flat on an exercise mat, extending your arms straight back behind your head.
- Fully extend your legs also. This is the start position.
- Bend at your waist and at the same time, raise your legs and arms to meet in a closed jackknife position. Exhale as you do this.
- At this point, your legs should remain fully extended at between 35-45 degrees from the floor.
- Your arms should be fully extended, parallel to your legs.
- Your upper body should be raised off the floor.
- Return to the start position by lowering your arms and legs back to the floor, exhaling as you do so.
- Repeat.
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Related exercises to discover
Stability / Swiss / Exercise Ball Reverse Crunches
Plank Knee to Elbow
Cobra Abdominal Stretch / Old Horse Stretch
Jackknife sit-ups / crunch / toe touches is a at-home work out exercise that targets abs and also involves glutes & hip flexors. Refer to the illustration diagram and instructions above for how to perform this exercise correctly. Stability / swiss / exercise ball reverse crunches, plank knee to elbow and cobra abdominal stretch / old horse stretch are related exercise that target the same muscle groups as jackknife sit-ups / crunch / toe touches. Visit our free illustrated exercise directory for more exercises to try in your workouts.
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Join thousands of Fit members reaching their fitness goals with simple easy-to-follow timed workouts at the gym and at home. Get started free today!
Exercise with confidence using our simple, visual and hight quality fitness products you can take anywhere.