MIT biomech Professor Robert W. Mann introduces several reports on ongoing research being conducted at the Harvard University and MIT Rehabilitation Engineering Center. Research themes cover (1) the quantification of mobility performance for functional assessment, diagnosis and therapy of neuromuscular, skeletal and synovial joint dysfunction, (2) the quantification of the functional capability of u/e amputees, and (3) the Tufts-MIT Prescription Guide. June 1, 1987. [T13410]