Ball Single Leg Extensions


  • Sit on the ball with your feet flat on the floor and your knees at a 90 degree angle.
  • Extend one leg straight out, contracting the thigh muscles.
  • Hold for 2 seconds, then return to the starting position.
  • Repeat using the other leg.


  • Be sure that you are comfortable and stable on the ball before trying any ball exercises.
Primary muscles Quads
Secondary muscles