Jack knives demonstration gif

Instructions:

  • 1Lie down on your back with your legs straight and your arms resting on the floor at your sides
  • 2Raise your legs straight up while bringing your chest forward, and take your hands towards your feet without bending your arms
  • 3Hold for a while and then return to the initial position slowly

Tips:

  • Keep your hips on the floor throughout the exercise
  • Keep your legs straight and your feet together
  • DonÆt hold your breath, keep breathing smoothly

Jack knives Muscles Worked

Arms

Back

Core

Legs