In Prone Position
Muscles Involved: Tibialis anterior/posterior, toe extensors/flexors, peroneus tertius, triceps surae,
peroneus longus
Attachments Needed
Dynamometer: Ankle attachment (ADA1), Angle attachment (ADL5)
Set up & positioning
Put the mechanical stops to “B” red and “B” red.
Combine the ankle (ADA1) and the angle attachment ADL5. Attach it to the dynamometer by
sliding it in the input arm from the top, short side. Tighten it firmly by turning the knob placed in the
input arm clock wise.
Adjust the chair and the dynamometer in accordance to the quick reference above.
Ask the subject to lay on the chair in a prone position.
Place the subject's ankle in the ankle adapter and secure it firmly by tightening the straps.
Set the axis of the joint rotation. The axis of rotation goes from the machine and extends through
the lateral condyle. To check the alignment simply plantar and dorsiflex the ankle and ensure the
heel does not lift from the footplate.
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