Weighted Jack-knife Sit-up - Body Building Exercise

Weighted Jack-knife Sit-up

The Weighted Jack-knife Sit-up is a great exercise for the stomach (abdominal muscle group), and requires no particular equipment.

What you need for the Weighted Jack-knife Sit-up

1. Weight plate, if desired
2. Exercise Mat

Instructions for the Weighted Jack-knife Sit-up

1. Sit down on the exercise mat, placing weight between your ankles.
2. Lie flat.
3. Raise knees and upper body at the same time until the knees and hips are fully flexed.
4. Return to original position.
5. Repeat.

Comments on the Weighted Jack-knife Sit-up

The Weighted Jack-knife Sit-up can be done with or without weight, and the weight can be adjusted to increase resistance. Note that doing the Weighted Jack-knife Sit-up will affect your entire body in terms of fat-reduction, not just the abdominal area. This exercise is a good, low-impact way to exercise the abdominal muscles.

Muscle Groups Worked By Weighted Jack-knife Sit-up

• Abdomen