Lower extremity hypermobility, but not core muscle endurance influences balance in female collegiate dancers
Abstract
Background Dance is a physically demanding activity, with almost 70% of all injuries in dancers occurring in the lower extremity (LE). Prior researchers report that muscle function (e.g. muscle endurance) and anatomical factors (e.g. hypermobility) affect physical performance (e.g. balance) and can subsequently influence LE injury risk. Specifically, lesser core muscle endurance, balance deficits, and greater hypermobility are related to increased LE injury risk. However, the potentials interrelationships among these factors in dancers remain unclear. Purpose The purposes of this study were to examine the relationships among core muscle endurance, balance, and LE hypermobility, and determine the relative contributions of core muscle endurance and LE hypermobility as predictors of balance in female collegiate dancers. Study Design Cross-sectional Methods Core muscle endurance was evaluated using the combined average anterior, left, and right lateral plank test time scores(s). LE hypermobility was measured using the LE-specific Beighton hypermobility measure, defining hypermobility if both legs had greater than 10 ° knee hyperextension. Balance was measured via the composite anterior, posterolateral, and posteromedial Star Excursion Balance Test (SEBT) reach distances (normalized to leg length) in 15 female healthy collegiate dancers (18.3 + 0.5yrs, 165.5 + 6.9cm, 63.7 + 12.1kg). Point-biserial-correlation-coefficients examined relationships and a linear regression examined whether core endurance and hypermobility predicted balance (p<.05). Results LE hypermobility (Yes; n = 3, No; n = 12) and balance (87.2 + 8.3% leg length) were positively correlated r(14)=.67, (p=.01). However, core endurance (103.9 + 50.6 s) and balance were not correlated r(14)=.32, (p=.26). LE hypermobility status predicted 36.9% of the variance in balance scores (p=.01). Conclusion LE hypermobility, but not core muscle endurance may be related to balance in female collegiate dancers. While LE hypermobility status influenced balance in the female collegiate dancers, how this LE hypermobility status affects their longitudinal injury risk as their careers progress needs further study. Overall, the current findings suggest that rather than using isolated core endurance-centric training, clinicians may encourage dancers to use training programs that incorporate multiple muscles - in order to improve their balance, and possibly reduce their LE injury risk.Citation
Ambegaonkar JP, Cortes N, Caswell SV, Ambegaonkar GP, and Wyon M. (2016) 'Lower extremity hypermobility, but not core muscle endurance influences balance in female collegiate dancers', International Journal of Sports Physical Therapy, 11 (2) pp. 220-29Journal
International Journal of Sports Physical TherapyPubMed ID
27104055Additional Links
https://spts.org/member-benefits-detail/enjoy-member-benefits/journals/ijspt/volume-11-number-2Type
Journal articleLanguage
enISSN
2159-2896Collections
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/
Related articles
- Relationships between core endurance, hip strength, and balance in collegiate female athletes.
- Authors: Ambegaonkar JP, Mettinger LM, Caswell SV, Burtt A, Cortes N
- Issue date: 2014 Oct
- Lower Extremity Horizontal Work, But Not Vertical Power, Predicts Balance Performance in Female Collegiate Dancers.
- Authors: Ambegaonkar JP, Caswell SV, Cortes N
- Issue date: 2018 Jun 15
- Female Collegiate Dancers' Physical Fitness across Their Four-Year Programs: A Prospective Analysis.
- Authors: Ambegaonkar JP, Hansen-Honeycutt J, Wiese KR, Cavanagh CM, Caswell SV, Ambegaonkar SJ, Martin J
- Issue date: 2023 Jul 17
- Relationships between core strength, hip external rotator muscle strength, and star excursion balance test performance in female lacrosse players.
- Authors: Gordon AT, Ambegaonkar JP, Caswell SV
- Issue date: 2013 Apr
- DANCE, BALANCE AND CORE MUSCLE PERFORMANCE MEASURES ARE IMPROVED FOLLOWING A 9-WEEK CORE STABILIZATION TRAINING PROGRAM AMONG COMPETITIVE COLLEGIATE Dancers.
- Authors: Watson T, Graning J, McPherson S, Carter E, Edwards J, Melcher I, Burgess T
- Issue date: 2017 Feb