Bench Jackknife Crunches

Renee modified jackknife ab crunch on bench women duration.

Bench jackknife crunches. Be sure to crunch with the abdominal muscles and not just pull from your hip flexors. Step 3 inhale as you slowly return to the starting position. Step 2 inhale and then exhale as you lean back slightly and curl your knees toward your chest.

Use slow controlled motions so you don t injure your back. 4 3 out of 5 stars 375. Bring your head off the floor at the same angle as your torso.

Be sure to crunch with the abdominal muscles and not just pull from your hip flexors. By using the bench your legs can potentially dip lower meaning your abdominal muscles must resist against gravity more. Free shipping by amazon.

Jack knife situps are fantastic for toning both upper and lower abdominals. Although the jackknife crunch can be performed on the floor you can up the intensity by using a weight bench. Although the jackknife crunch can be performed on the floor you can up the intensity by using a weight bench.

Grip the end of the bench with your hands for support. You will be lying on your butt and back. Second variation you start on the floor with your feet 6 inch off the floor and your head 2 to 3 inch off the floor.

Sit on the end of a flat bench. Step 3 inhale as you slowly return to the starting position. Grip the end of the bench with your hands for support.

Sit on the end of a flat bench. Step 2 inhale and then exhale as you lean back slightly and curl your knees toward your chest. The only 7 exercises you need for mass duration.

Bring your legs in by bending your knee. Scoot your buttocks to the edge of your weight bench and grasp the end of the weight bench with your hands. Search over 500 free workout videos https goo gl 4q1j58 home workout programs https goo gl ak35t1 free 5 day.

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