Denehey Thomas, Marshall Timothy, Spaccarotella Kim, Andzel Walter
Department of Physical Education, Recreation and Health, Kean University, Union, NJ, USA.
School of Physical Therapy, Kean University, Union, NJ, USA.
Int J Exerc Sci. 2018 Jun 1;11(4):797-805. doi: 10.70252/DQXP5432. eCollection 2018.
Ankle sprains are common injuries, especially for football players, and may result in ankle instability, which can limit performance and increase injury risk. Ankle stability return to play criteria is often assessed under loaded conditions, even though previous research suggests loaded conditions affect dynamic balance. The purpose of this study was to evaluate dynamic balance under loaded conditions. A modified Star Excursion Balance Test (SEBT), incorporating anterior, posterior medial and posterior lateral reach directions under the loaded condition of NCAA Division III football equipment was evaluated. Thirty male collegiate football players completed the modified SEBT under loaded and non-loaded conditions. Scores for the three reach directions on the SEBT were computed for loaded and non-loaded conditions. Repeated measures ANOVA was used to compare reach directions under loaded and non-loaded. Under loaded conditions, participants had significantly shorter posterior lateral reach distances for the left (98.05 ± 12.73 cm vs. 89.30 ± 10.45 cm, = 0.00) and right (103.77 ± 12.78 cm vs. 99.07 ± 13.50 cm, = 0.00) legs and significantly shorter reach distances for the right leg in both the anterior direction (84.58 ± 5.64 cm vs. 80.57 ± 13.73 cm, = 0.02) and composite dynamic balance score (105.99 ± 12.99 vs. 102.30 ± 14.28, = 0.009). The addition of 6.2 kg of external load significantly affected dynamic balance assessed by the modified Star Balance Excursion Test. These findings suggest that return to support assessments should involve sport-specific conditions when determining readiness of return to play.
踝关节扭伤是常见的损伤，尤其在足球运动员中，可能导致踝关节不稳定，进而限制运动表现并增加受伤风险。尽管先前的研究表明负重状态会影响动态平衡，但踝关节稳定性恢复比赛的标准通常在负重条件下进行评估。本研究的目的是评估负重条件下的动态平衡。对一项改良的星形偏移平衡测试（SEBT）进行了评估，该测试纳入了美国大学体育协会（NCAA）三级橄榄球装备负重条件下的前向、后内侧和后外侧伸展方向。30名男性大学橄榄球运动员在负重和非负重条件下完成了改良的SEBT。计算了负重和非负重条件下SEBT三个伸展方向的得分。采用重复测量方差分析来比较负重和非负重条件下的伸展方向。在负重条件下，参与者左腿（98.05±12.73厘米对89.30±10.45厘米，P = 0.00）和右腿（103.77±12.78厘米对99.07±13.50厘米，P = 0.00）的后外侧伸展距离显著缩短，右腿在前向方向（84.58±5.64厘米对80.57±13.73厘米，P = 0.02）和综合动态平衡得分（105.99±12.99对102.30±14.28，P = 0.009）也显著缩短。增加6.2千克的外部负荷显著影响了改良星形平衡偏移测试评估的动态平衡。这些发现表明，在确定恢复比赛的准备情况时，恢复支持评估应涉及特定运动条件。
