Figure 1From: Elbow spasticity during passive stretch-reflex: clinical evaluation using a wearable sensor systemBioTone tools used in the evaluation of spastic hypertonia. Top: a) Electrode placement for triceps and biceps with 2-channel EMG system; b) The ShapeSensorâ„¢ fibre-optic goniometer; and c) The arm instrumented with a wearable sensor system. Bottom: Stretch-reflex test being performed by a therapist with: d) limb in extension; and e) limb in flexion.Back to article page