Standing Subtalar Joint Axis Location Technique The axis of motion of the subtalar joint (STJ) should be of special interest to all podiatrists since the STJ axis spatial location relative to the plantar aspect of the foot largely determines the kinetics (i.e. forces and moments) of the STJ during weightbearing activities (Kirby KA: Subtalar joint axis location and rotational equilibrium theory of foot function. JAPMA, 91:465-488, 2001). The first technique described within the scientific litera

Modern Research on the Subtalar and Midtarsal Joints by E.J. Van Langelaan, MD, PhD Subtalar joint (STJ) and midtarsal joint (MTJ) motions involves complex, three-dimensional motions of the talus, calcaneus, navicular and cuboid. The STJ axis is not a hinge-like joint, fixed in space as currently taught to so many health-professionals. Rather, the STJ axis moves in space to a slightly different spatial location relative to the talus and calcaneus as the foot pronates and supinates. The resulting