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  • Come into an upright sitting position.
  • Position a swiss ball or foam roller as demonstrated below, in front of the target limb.
  • The ankle should be directly underneath the working knee at 90 degrees.
  • Begin to press out as if you were attempting to straighten the leg.
  • The ball/roller should stop the leg from moving beyond 90 degrees.
  • Sustain the contraction as prescribed by your Physiotherapist.
Category: Strength Region: Lower Limb, Knee Equipment: Swiss Ball Position: Seated Activation: Isometric Unilateral: Yes