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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