Figure 1From: A novel technique of quantifying first metatarsophalangeal (1stMPJ) joint stiffnessA. Finger sleeve with pressure pad (circled) on tip of thumb to measure force applied to move the 1st MPJ. B. Moment arm (length of proximal phalanx) from joint fulcrum to point of force application. C. Displacement force applied to proximal phalanx, dorsiflexing 1st MPJ through its range of motion.Back to article page