Thomas Test

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Instructions

Preparation

Lie supine on bench with leg extended beyond edge of bench (less than half of thigh on bench). Bring other knee of other leg to chest.

Execution

Pull thigh down with hands until low back touches testing surface. Repeat on opposite leg.

Measurement

Lower thigh should remain on table. If lower thigh lifts off table while low back contacts table, a tight Iliopsoas is indicated.

Comments

Thigh should be pulled into chest just enough to have low back contact bench. A false positive may occur if pelvis posteriorly rotates beyond what is nessecary to have low back contact testing surface.

Thomas Test

Assesses

Joint ROM: Hip Extension
Flexibility: Iliopsoas
Force: Passive (Gravity)

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