“…With respect to elbow flexion, only a few systems have been reported. Most of these have simulated muscle forces in the major muscles crossing the joint while testing in static elbow positions, or while an investigator flexed the arm passively (Baratz et al, 1996;Itoi et al, 1994;King et al, 1993;Morrey et al, 1991;O'Driscoll et al, 1992;Olsen et al, 1998;Pomianowski et al, 2001a;Pomianowski et al, 2001b;Seiber et al, 2009).…”