Hyperstrike Exercise Videos, Legs

Bent-knee Quad Isometrics — Seated

[Elite_video_player id=”349″]

Muscle Groups
  • Legs
  • Quadriceps isometric (static) strength


The Bent-knee Quad Isometrics exercise preformed while seated increases quad strength and promotes appropriate patellar tracking. This exercise is used as part of rehabilitation routine for various knee injuries, such as an ACL tear. If a foam roller is not available you can roll up a beach towel and place it under your knee. Isometrics require the muscles to create tension at a constant length, therefore the muscles do not move the body part.


  • Seated down, lean back with one leg straight but propped up slightly at the knee over a large rolled-up towel.
  • Contract the thighs without moving the knee.
  • Return to the relaxed position.


  • Straightening the knee