The initial prototype of the device used a steel U-shaped frame that was customizable to the patient’s proportions and reduced the physical therapist’s needed force to resist the muscle. During testing, physical therapists were able to monitor signs of compensation and to detect the need for repositioning. In improved models, the team hopes to implement built-in force transducers to the frame to precisely measure muscle strength bilaterally. Their final product will improve muscle testing for patients and physical therapists through improved consistency of testing.