Jackknife Sit-up
An exercise for the Waist - correct movement demonstrated with detailed steps.
● Step by step
- Lie flat on your back with your legs extended and your arms overhead.
- Engage your core and lift your legs and upper body simultaneously, reaching your hands towards your toes.
- Pause for a moment at the top, then slowly lower your legs and upper body back down to the starting position.
- Repeat for the desired number of repetitions.
● Muscles worked
Abs (primary)Hip Flexors
