ASSOCIATION BETWEEN HIP AND HINDFOOT DYNAMIC ALIGNMENT AND DYNAMIC KNEE VALGUS IN HIGH SCHOOL FEMALE BASKETBALL PLAYERS / 体力科学
Japanese Journal of Physical Fitness and Sports Medicine
;
: 55-62, 2009.
Article
in Japanese
| WPRIM
| ID: wpr-362490
ABSTRACT
Dynamic knee valgus is considered a risk factor of noncontact ACL injuries. The aim of this study was to determine the association between hip and hindfoot dynamic alignment and dynamic knee valgus.This cross-sectional study involved 88 high school female basketball players (175 legs). Subjects performed single-leg squatting and drop landing which provided a hip-out distance (HOD) and a knee-in distance (KID) via 2D video images. Hip and hindfoot dynamic alignment was evaluated by a dynamic Trendelenburg test (DTT) and a heel-floor test (HFT), respectively, during squatting and landing.The DTT-positive group (dynamic hip mal-alignment with lower non-weightbearing pelvis) demonstrated greater HOD and KID values for both squatting (p<0.001) and landing (p<0.001) than the DTT-negative group. The HFT-positive group (5<sup>o</sup> or greater hindfoot valgus) demonstrated greater KID values for both squatting (p<0.01) and landing (p<0.001), but smaller HOD value for squatting (p<0.01) than the HFT-negative group.In conclusion, dynamic hip mal-alignment may be associated with both greater HOD and KID, but hindfoot valgus only with greater KID.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Observational study
/
Risk factors
Language:
Japanese
Journal:
Japanese Journal of Physical Fitness and Sports Medicine
Year:
2009
Type:
Article
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