If a patient's hamstring muscles are of inadequate length, his ability to perform or the manner in which he performs various functional maneuvers may be altered. A number of methods for stretching the hamstring muscles have, therefore, been described or recommended.1–4 Of the muscle stretching techniques practiced by clinicians, the most effective are probably those that incorporate the application of prolonged lengthening loads.5,6 Although such loads may use methods previously described, we needed a more versatile and portable device to apply such loads in our clinic. After considering several alternatives, we concluded that the method described by Gajdosik and Lusin for measuring hamstring muscle length could, if the appropriate equipment was available, be adapted for use in stretching the hamstring muscles.7 The purpose of this suggestion from the field is to describe the portable apparatus we designed for stretching the hamstring muscles. [ ARTICLE][1] [1]: /lookup/volpage/63/1085?iss=7