JackKnife
Expert Advice
Control the movement both on the way up and down to maximize muscle engagement and prevent momentum from taking over.
How-to-do Steps
- Lie flat on your back with your arms extended behind your head and legs straight.
- Simultaneously lift your arms and legs up, reaching towards each other in a 'V' shape.
- Try to touch your toes with your fingertips at the top of the movement.
- Slowly lower your arms and legs back to the starting position without letting them touch the floor.
- Repeat for the desired number of repetitions.
Details
Primary
Quads14%
Abs14%
Hamstrings14%
Calves14%
Glutes14%
Chest15%
Lats15%
Equipment
Body weight
Exercise Type
Stretching
