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Association Between Impact Peak and Hip Flexor Activity During Running

[+] Author Affiliations
Anne Schmitz, Kristen Snarski, Davide Piovesan

Gannon University, Erie, PA

Jaclyn Norberg

Salem State University, Salem, MA

Paper No. IMECE2016-65374, pp. V003T04A052; 5 pages
  • ASME 2016 International Mechanical Engineering Congress and Exposition
  • Volume 3: Biomedical and Biotechnology Engineering
  • Phoenix, Arizona, USA, November 11–17, 2016
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5053-4
  • Copyright © 2016 by ASME


Gait retraining techniques to reduce impact forces during running is of significant interest to clinicians interested in reducing running injury risk. Increased peak rectus femoris activity during swing was significantly correlated with decreased impact peak during running (r = −0.654, p = 0.01) due to the muscle’s large hip flexion moment arm (43 to 54 mm). Gluteus medius (r = −0.204, p = 0.466) and adductor longus (r = 0.104, p = 0.714) activity were not significantly correlated with impact peak. These results suggest that gait retraining programs aimed at reducing the impact peak during running should focus on increased rectus femoris activity during swing.

Copyright © 2016 by ASME
Topics: Wounds , Risk



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