Want to know how to do Jackknife Sit-up / Crunch ? Read on further for detailed workout instructions, notes, video and pro tips for learning proper form and train better for it.
WHAT IS JACKKNIFE SIT-UP / V SIT-UP ?
This exercise is highly beneficial for building your Abs & Obliques.
WHAT MUSCLES DOES JACKKNIFE SIT-UP / V SIT-UP WORKOUT ?
Primary muscle: Jackknife sit-ups primarily focuses on building your Abs & Obliques.
WHAT EQUIPMENT DOES JACKKNIFE SIT-UP / V SIT-UP REQUIRE?
No equipment for this exercise.
HOW TO DO JACKKNIFE SIT-UP / V SIT-UP?
Performing the 8 steps below, you will be able to do this exercise properly:1. Lie straight on an exercise mat and extend your arms straight back behind your head.
2. Starting position: Fully extend your legs also.
3. Elevate your legs and arms and bend your waist at the same time and try to meet your arms and legs in a closed jackknife position.
4. While doing this exercise, your legs should be fully extended near about 30-45 degrees from the floor.
5. Keep your arms fully extended, totally parallel to your legs.
6. Your upper body should be elevated from the floor.
7. Final position: Get back to the start position by lowering your legs and your arms back to the floor.
8. Repeat until you’ve hit your targeted reps.
2. Starting position: Fully extend your legs also.
3. Elevate your legs and arms and bend your waist at the same time and try to meet your arms and legs in a closed jackknife position.
4. While doing this exercise, your legs should be fully extended near about 30-45 degrees from the floor.
5. Keep your arms fully extended, totally parallel to your legs.
6. Your upper body should be elevated from the floor.
7. Final position: Get back to the start position by lowering your legs and your arms back to the floor.
8. Repeat until you’ve hit your targeted reps.
WHAT IS THE DIFFICULTY LEVEL OF PERFORMING JACKKNIFE SIT-UP /V SIT-UP ?
This exercise’s level of difficulty is Hard.
WHO ALL CAN PERFORM JACKKNIFE SIT-UP /V SIT-UP?
Both men and women can perform this exercise comfortably.
IS THERE ANY OTHER RELATED EXERCISE WHICH BENEFIT THE SAME PRIMARY MUSCLES AS JACKKNIFE SIT-UP /V SIT-UP DOES ?
Yes, these are the 5 exercises that work on same primary muscles as Jackknife sit-up / crunch does :
1. Knee / Hip Raise
2. Hanging Leg Raise
3. Ab Crunch Machine
4. LR: Resistance Band Twist
5. Windshield Wipers
This is just not enough. Find out the other best bodybuilding exercises here.
