Sex variation in patellar tendon kinetics during running

Sinclair, Jonathan Kenneth orcid iconORCID: 0000-0002-2231-3732 and Taylor, Paul John orcid iconORCID: 0000-0002-9999-8397 (2015) Sex variation in patellar tendon kinetics during running. Human Movement, 16 (2). pp. 60-63.

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The aim of the current investigation was to determine whether female recreational runners exhibit distinct patellar tendon loading patterns in relation to their male counterparts.
Twelve male (age 26.55 ± 4.11 years, height 1.78 ± 0.11 m,
mass 77.11 ± 5.06 kg) and twelve female (age 26.67 ± 5.34 years, height 1.67 ± 0.12 m, mass 63.28 ± 9.75 kg) runners ran over a force platform at 4.0 m · s –1. Lower limb kinematics were collected using an eight-camera optoelectric motion capture system which operated at 250 Hz. Patellar tendon loads were examined using a predictive algorithm. Sex differences in limb, knee and ankle joint stiffness were examined statistically using independent samples t tests.
The results indicate that patellar tendon force (male = 6.49 ± 2.28, female = 7.03 ± 1.35) and patelllar tendon loading rate (male = 92.41 ± 32.51, female = 111.05 ± 48.58) were significantly higher in female runners.
Excessive tendon loading in female runners indicates that female runners may be at increased risk of patellar tendon pathologies.

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