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Open AccessArticle

Running Propensities of Athletes with Hamstring Injuries

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Division of Sports Medicine, Department of Orthopedics, Boston Children’s Hospital, Boston, MA 02115, USA
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The Micheli Center for Sports Injury Prevention, Waltham, MA 02453, USA
3
Harvard Medical School, Boston, MA 02115, USA
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Orthopedic Surgery & Sports Medicine, Phoenix Children’s Hospital, Phoenix, AZ 85016, USA
*
Author to whom correspondence should be addressed.
Sports 2019, 7(9), 210; https://doi.org/10.3390/sports7090210
Received: 6 August 2019 / Revised: 29 August 2019 / Accepted: 4 September 2019 / Published: 12 September 2019
The current study aims to compare the mechanical propensities between healthy runners and runners with hamstring injuries. Retrospective case-control video analysis was used. A total of 35 (12 male and 23 female) videos of runners with hamstring injuries were compared with videos of sex-, age-, mass-, and height-matched healthy control runners. The main outcome variables were trunk posture angles, overstride angles, and foot strike patterns. An independent t-test and chi-squared tests were employed to analyze the main outcome variables between the runners with hamstring injuries and the healthy control runners. The statistical significance of less than 0.05 (p < 0.05) was used. The runners with hamstring injuries had a 1.6° less forward-trunk posture angles compared with the healthy control runners (p = 0.043). Also, the runners with hamstring injuries demonstrated a 4.9° greater overstride angles compared with the healthy control runners (p = 0.001). Finally, the runners with hamstring injuries had a tendency of rearfoot strike, while the healthy control runners showed a forefoot strike pattern (p = 0.004). In conclusion, the runners with hamstring injuries demonstrated different running mechanical propensities compared with the healthy runners. View Full-Text
Keywords: forward-trunk posture angles; oversride angles; foot strike patterns; mechanics forward-trunk posture angles; oversride angles; foot strike patterns; mechanics
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Sugimoto, D.; Kelly, B.D.; Mandel, D.L.; d’Hemecourt, D.A.; Carpenito, S.C.; d’Hemecourt, C.A.; d’Hemecourt, P.A. Running Propensities of Athletes with Hamstring Injuries. Sports 2019, 7, 210.

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