Balance but not Core Endurance is Related to Single-Leg Hops in Female Collegiate Dancers.

Poster #: 186
Session/Time: A
Author: Prachi Pisay, BPT, MS
Mentor: Jatin P Ambegaonkar, MS, PhD
Research Type: Educational

Abstract

INTRODUCTION:
Dancing requires technical skills to execute explosive movements while maintaining balance. SLH is common in dance and requires stability and strength. Dancers need core endurance and dynamic balance for precision and control of complex movements. While these factors may affect SLH performance independently, their combined impact on SLH performance remains unclear. Purpose: To investigate relationships among core endurance, dynamic balance and single-leg hops (SLH), and determine whether core endurance and dynamic balance predict SLH performance in female collegiate dancers.

METHODS:
With IRB approval, 17 female collegiate dancers (18.1±0.3years,163.6±6.7cm, and 61.9±6.6kg) participated. Core endurance was assessed using composite scores from right and left side planks, prone plank, and the Biering-Sorensen test(extensor plank) in seconds. Dynamic balance was assessed using the Y Balance test-YBT (composite score of anterior, posteromedial, and posterolateral reach scores, normalized to % leg length:LL). SLH (normalized to % Body Height:BH) performance was assessed using published methods. Pearson's correlations examined relationships among the variables, and linear regressions predicted SLH.

RESULTS:
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DISCUSSION:
Mean core endurance score was 95.2±29.1 s, YBT was 93.4±7.7 %LL, and SLH was 67.4±17.2 %BH. YBT and SLH were positively correlated (r= 0.53, p= 0.03),while core endurance was not correlated with SLH (r= 0.26, p= 0.31). YBT predicted SLH(adjusted R²= 27.9, p=0.03, 95% CI = 0.13, 2.21), with each 1% increase in YBT reach distance increased SLH jump distance by 1.17%. Core endurance did not predict SLH (p = 0.50, 95% CI = -0.20, 0.38).

CONCLUSION:
Dynamic balance but not core endurance was related and predicted SLH distance in female collegiate dancers. These study results emphasize relationships between dynamic balance and single-leg landings. Healthcare practitioners, educators, and dancers wanting to improve dancers' horizontal hop performance can use these results and incorporate dynamic balance exercises into training and rehabilitation protocols.