Active Lying Knee Extension

Practical Usage

Incorporate this exercise into the routine of your choice with the upcoming ExRx app. Or use the workout creation guide for an evidence-based do-it-yourself approach.

Active Lying Knee Extension Test



Lie supine on mat or bench. Bend hip and knee at right angles so thigh is vertical and lower leg is horizontal. Starting position show.


Extend knee and hold position. Repeat on opposite leg.


Angle of knee is noted. Achieving a 5° to 15° bend is desirable.


Ankle may be kept in neutral position or plantar flexed (pointed). Thigh may be stabilized vertically by test administrator or subject using a mirror.


Joint ROM: Knee Extension
Flexibility: Hamstrings
Force: Active

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