TMJ isometric protrusion (protraction) ("TMJ" Temporomandibular joint protrusion strengthening isometric, with palm, sitting)

TMJ isometric protrusion (protraction) ("TMJ" Temporomandibular joint protrusion strengthening isometric, with palm, sitting)

Sit upright with your feet flat on the floor.
Place your palm on your chin.
Push your lower jaw forwards, resisting the movement with your hand.
Hold this position.

Required equipment: Chair
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