Half Jackknife (male)

Half Jackknife demonstration gif

Instructions:

  • 1Lie flat on your back on the floor, with your arms extended straight beside your body
  • 2Lift your upper body and one knee towards each other, while keeping the other leg flat on the floor
  • 3Pause for a second when your chest and knee meet
  • 4Slowly lower yourself back to the start position
  • 5Repeat with the opposite leg

Tips:

  • Exhale as you lift your body and knee
  • Inhale as you return to the start position
  • Keep your movements slow and controlled
  • Maintain a flat back throughout the exercise

Half Jackknife Muscles Worked

Arms

Back

Core

Legs