Hamstring extensibility is an important component of physical fitness and spinal health. In this context, extensibility is understood as the ability of muscle tissue to lengthen or stretch beyond the resting length. Short-hamstring syndrome is one of the main risk factors for athletic injuries, low back pain, etc.
The aims of the current study were to evaluate the validity of WIMU for measuring hamstring muscle extensibility in the passive straight leg raise (PSLR) test using an inclinometer for the criterion and determine the test-retest reliability of the WIMU to measure hamstring muscle extensibility during the PSLR test.
55 subjects were evaluated on 2 separate occasions. WIMU showed strong concurrent validity and excellent test-retest reliability for the evaluation of hamstring muscle extensibility in the PSLR test.