A great deal of literature exists on range of motion (ROM) of the hips and its effects on the hamstring muscles, as well as, performance in a sport. A plethora of research also exists on the prevalence of hamstring injuries across multiple levels of American football. However, much of this research is conflicting and most researchers concluded that more research needs to be done to have a more definitive clinical method. Neurodynamic mobilization techniques (NMTs) are emerging clinical methods that require further investigation for effectiveness in increasing ROM in patients. Some studies have been done using NMTs and showed comparable results versus other, more commonly used, clinical techniques as a way to increase ROM. In this study a large double-arm goniometer was used to measure the changes in ROM at the hip with a 4-week NMTs intervention. There was a significant difference between the pre- and post- active range of motion (AROM) measurements (p < .05). The right leg AROM was significant at p = 0.019. The left leg AROM was significant at p = 0.007. The results showed that there was no significant difference when investigating passive range of motion (PROM) or by position.

This method may have significant clinical rehabilitation implications for healthy individuals as well as individuals with hamstring injuries. More research needs to be completed to ensure the effectiveness of these techniques.