Jack Knife
- Intermediate
- Abdominals
Want more exercises like this?
Setup instructions
1) Lay on your back. Lift your legs up towards the ceiling so they're around a 45 degree angle. Now, raise your arms up so they're near parallel to the legs.
Perform instructions
1) Curl up by tightening the abs - aim to touch your toes.
2) Pause for a second at the top - your body should look like a 'V' at the endpoint. Now, gently lower yourself back to the floor.
3) Repeat.
Note: try keep your legs as straight as possible.
Anatomy
Equipment
Don't have the equipment you need? Click to order from one of our affiliated partners.
Interests
Health benefits
Muscular Endurance
Peformed by
Fitain is FREE
for everyone to use
All features & functionality are included. We have worked hard to make sure we can help as many people as possible take the next steps on their health and fitness journey.
Get started straight away
Sign up takes less than a minute and unlike existing apps, we don't ask for your age, weight, height, sex or shoe size. Find high-quality workout plans and health and fitness professionals in a matter of seconds. You can even take things a step further and connect with a trainer. You're in control and your information is always kept safe and secure at all times. We will never share your data with other companies.
