Lower Extremity Stiffness Changes after Concussion in Collegiate Football Players
Dubose DF., Herman DC., Jones DL., Tillman SM., Clugston JR., Pass A., Hernandez JA., Vasilopoulos T., Horodyski M., Chielewski TL. Medicine & Science in Sport & Exercise. 2016; 49(1):167-172.
Take Home Message: An athlete with a recent concussion has altered lower extremity stiffness at the leg, hip, and knee, which could increase their risk for musculoskeletal injury.
Even when an athlete meets concussion return-to-play criteria they may be at an increased risk for musculoskeletal injury. This may be due to unresolved neuromuscular impairments, which can affect lower extremity stiffness. However, few researchers have looked at the effect of concussion on lower extremity stiffness. Therefore, the authors compared pre- to post-season changes in stiffness during a jump-landing task in a cohort of 39 Division I football athletes (13 with a history of concussion and 26 matched [age, position, season] controls with no history of concussions]).