| Autor: |
King, M. G., Semciw, A. S., Schache, A. G., Middleton, K. J., Heerey, J. J., Scholes, M., Mentiplay, BF, Sritharan, P., Crossley, K. M. |
| Předmět: |
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| Zdroj: |
International Journal of Sports Physical Therapy; Dec2019, Vol. 14 Issue 6, pS5-S6, 2p |
| Abstrakt: |
Objective: Women with hip-related pain (HRP) are underrepresented in the literature. As such, the movement strategies of women with HRP are not well understood. Therefore, the aim of the study was to compare the mechanical work completed by the lower limb joints during the single leg drop jump (SLDJ) in women with and without HRP. Methods: Female football players, aged 18-50 years, with and without HRP were eligible to participate. Twenty-three women with HRP and 13 controls participated. Biomechanical data on the SLDJ were collected using a three-dimensional motion capture system and force plates. Total lower limb work was calculated as well as the relative contributions of the hip, knee and ankle. Differences between group were assessed using t-tests. Results: The relative contribution to negative work done at the knee was significantly less in the women with HRP compared with the control group (mean difference -4.7%, 95%CI -9.1, -0.3; P=0.04). When comparing contributions across the three joints, the ankle provided the largest contribution to positive work for the HRP group (36.8%), with the hip being the largest contributor in the controls (35.4%). Conclusions: Women with HRP absorbed significantly less energy at the knee compared to healthy controls. The reason why women with HRP do not use a knee dominant strategy for absorbing energy during the SLDJ requires further scrutiny. Despite no difference in total positive work between groups, we did observe some subtle differences amongst the joints in the relative contributions to positive work done. The ankle was the dominant source of positive work during the SLDJ for women with HRP, whereas the hip was for controls. This strategy adopted by women with HRP may be an attempt to 'offload' the symptomatic hip. Clinical implications: The study demonstrates potential impairments that can be addressed in rehabilitation programs to normalise force attenuation and propulsive strategies in women with HRP. [ABSTRACT FROM AUTHOR] |
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