Title | The Relationship Between Hip Strength and the Y Balance Test. |
Publication Type | Journal Article |
Year of Publication | 2018 |
Authors | Wilson BR, Robertson KE, Burnham JM, Yonz MC, Ireland MLloyd, Noehren B |
Journal | J Sport Rehabil |
Volume | 27 |
Issue | 5 |
Pagination | 445-450 |
Date Published | 2018 Sep 01 |
ISSN | 1543-3072 |
Keywords | Adult, Exercise Test, Female, Hip, Humans, Male, Movement, Muscle Strength, Postural Balance, Rotation, Young Adult |
Abstract | CONTEXT: The Y Balance Test was developed as a test of dynamic postural control and has been shown to be predictive of lower-extremity injury. However, the relationship between hip strength and performance on the Y Balance Test has not been fully elucidated. OBJECTIVE: The goal of this study was to identify the relationship between components of isometric hip strength and the Y Balance Test, to provide clinicians better guidance as to specific areas of muscle performance to address in the event of poor performance on the Y Balance Test. DESIGN: Laboratory study. SETTING: Biomechanics laboratory. PARTICIPANTS: A total of 73 healthy participants (40 males and 33 females) volunteered for this study. INTERVENTION: None. MAIN OUTCOME MEASURES: Participants completed the Y Balance Test on the right leg. The authors then measured peak isometric torque in hip external rotation, abduction, and extension. Correlations were calculated between torque measurements, normalized for mass and Y Balance Test performance. Significant relationships were used in linear regression models to determine which variables were predictive of the Y Balance Test performance. RESULTS: The authors found significant positive correlations between Y Balance Test performance and hip abduction strength. They also found correlations between the Y Balance Test and hip extension and external rotation strengths. Linear regression analysis showed hip abduction to be the only significant predictor of Y Balance performance. CONCLUSIONS: The authors found the strongest association between the Y Balance Test and hip abduction strength. They also showed smaller but significant associations with hip extension and external rotation strength. When entered into a linear regression analysis, hip abduction strength was the only significant predictor of Y Balance performance. Using this information, practitioners should look to hip abduction strength when patients exhibit deficits in the Y Balance Test. |
DOI | 10.1123/jsr.2016-0187 |
Alternate Journal | J Sport Rehabil |
PubMed ID | 28714790 |