Why do we use a Wrist Isokinetic Dynamometer?
Many studies performed under isometric conditions have identified handgrip force and wrist torque may be affected by age, gender, wrist position, forearm position, dexterity, glove type and grip span (Hallbeck 1994; Miller and Wells 1988; Ramakrishnan et al. 1994; Wilhelm and Hallbeck 1997). Especially, the effect of wrist position is that any deviation from neutral decreases grip force and wrist torque, with a larger decrement in flexion than extension. Force exertion direction also affects grip force and wrist torque under both isometric and isokinetic conditions and angular velocity is one of important factors in the isokinetic condition because grip force and wrist torque dramatically reduced even in slow velocities (Lehman et al. 1993; Hallbeck et al. 1990; Wilhelm and Hallbeck 1997; Jung and Hallbeck 2002).
