Title of Submission
Sex Impacts Leg Stiffness When Increasing Stride Length to Run with Body Borne Load
Major Advisor Name
Type of Submission
Military personnel routinely run at a fixed cadence with body borne load, which may increase leg stiffness and potential injury risk - particularly for females. Seventeen males and ten females had leg stiffness quantified when running with four loads (20, 25, 30, and 35 kg) and three stride lengths (preferred, and ±15% of preferred). Participants increased leg stiffness (P=0.006), and potentially injury risk when running with load. But, a sex dimorphism in stiffness was evident with changes in stride length. Males exhibited reduced leg stiffness with longer strides (P>0.05).
Battelle & Natick Soldier RD&E Center