Natural Science Division, Pepperdine University, Malibu, CA 90263, USA.
Department of Physical Education, University of South Carolina, Columbia, SC 29208, USA.
Int J Environ Res Public Health. 2021 Sep 16;18(18):9742. doi: 10.3390/ijerph18189742.
Muscular fitness, an important marker of health in youth, includes explosive strength, which can be assessed using the standing long jump (SLJ). Little is known concerning the SLJ in populations with disabilities such as youth with visual impairments (VI) who trend with decreased health- and performance-related outcomes. The purposes of this study were to investigate multidimensional SLJ performance outcomes in youth with VI (i.e., descriptives and percentages of occurrence) and to explore associations among such variables and known factors of interest (e.g., age) using robust linear bivariate regressions. This study was a secondary analysis from data collected in 2018 ( = 61, M = 12.98 years, SD = 2.21). SLJ performance was investigated using a multidimensional focus (e.g., distance, Test of Gross Motor Development-3 horizontal jump, landing developmental sequences, landing joint displacement, and stabilization after landing). In general, SLJ performance was substandard in youth with VI. Most SLJ assessment scores were predictive of other SLJ assessment scores. Few hypothesized variables of interest (e.g., multimorbidity) were predictive of SLJ performance. Youth with VI who match the characteristics of the current sample may have decreased explosive strength/muscular fitness and, worryingly, their SLJ performance may not be influenced by expected factors (e.g., age). Implications and explanations for these results are discussed.
肌肉健康是年轻人健康的一个重要指标，其中包括爆发力，可以通过站立跳远（SLJ）来评估。对于像视力障碍青年（VI）这样的残疾人群体，关于 SLJ 的了解甚少，他们往往与健康和表现相关的结果下降有关。本研究的目的是调查 VI 青年的多维 SLJ 表现结果（即描述性和发生率），并使用稳健的线性双变量回归探索这些变量与已知相关因素（例如年龄）之间的关联。本研究是对 2018 年收集的数据进行的二次分析（n=61，M=12.98 岁，SD=2.21）。使用多维焦点（例如距离、运动发育测试-3 水平跳跃、着陆发展序列、着陆关节位移和着陆后的稳定）来研究 SLJ 表现。总的来说，VI 青年的 SLJ 表现不佳。大多数 SLJ 评估分数可预测其他 SLJ 评估分数。少数感兴趣的假设变量（例如多病共存）可预测 SLJ 表现。与当前样本特征匹配的 VI 青年可能爆发力/肌肉健康下降，令人担忧的是，他们的 SLJ 表现可能不受预期因素（例如年龄）的影响。对这些结果进行了讨论和解释。
