The Effects of Functional Fatigue on the Hoffmann’s Reflex in Female Soccer Players to Predict Anterior Cruciate Ligament Injury Thesis uri icon



  • Thesis (M.S., Neuroscience) - University of Idaho, 2015 | Anterior Cruciate Ligament injuries are debilitating and have a time-consuming rehabilitation process. Females are 2 to 8 times more likely to sustain non-contact ACL injuries than men (Mandelbaum & Silvers, 2005), particularly in sports that require frequent cutting, accelerating, jumping, and landing. Although there are many suggestions as to why this high incidence of injury occurs in women, there are no real explanations. This study used a within subjects design to investigate the effect of functional fatigue on the Hoffmann’s Reflex in female Division I soccer players. The H-Reflex was used to test the action of the stretch reflex within the quadriceps to determine how human reflexes are affected due to fatigue. The onset, duration, and peak of H-reflex were found for each subject before and after fatigue. A significant change in onset of H-reflex was found when comparing pre and post fatigue results.

publication date

  • August 15, 2015

has restriction

  • Author has requrested a digital embargo of 6 months.