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Fernando M.F. Cardoso Meshal Almodhy Garyfalia Pepera Dimitrios M. Stasinopoulos 《Journal of sports sciences》2017,35(1):1-6
The incremental shuttle walk test (ISWT) is used to assess functional capacity of patients entering cardiac rehabilitation. Factors such as age and sex account for a proportion of the variance in test performance in healthy individuals but there are no reference values for patients with cardiovascular disease. The aim of this study was to produce reference values for the ISWT. Participants were n = 548 patients referred to outpatient cardiac rehabilitation who underwent a clinical examination and performed the ISWT. We used regression to identify predictors of performance and produced centile values using the generalised additive model for location, scale and shape model. Men walked significantly further than women (395 ± 165 vs. 269 ± 118 m; t = 9.5, P < 0.001) so data were analysed separately by sex. Age (years) was the strongest predictor of performance in men (β = ?5.9; 95% CI: ?7.1 to ?4.6 m) and women (β = ?4.8; 95% CI: ?6.3 to 3.3). Centile curves demonstrated a broadly linear decrease in expected ISWT values in males (25–85 years) and a more curvilinear trend in females. Patients entering cardiac rehabilitation present with highly heterogeneous ISWT values. Much of the variance in performance can be explained by patients’ age and sex. Comparing absolute values with age-and sex-specific reference values may aid interpretation of ISWT performance during initial patient assessment at entry to cardiac rehabilitation. 相似文献
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目的：建立我国10~17岁青少年体质健康评价指标百分位数分布曲线及参考值。方法：通过文献资料、专家访谈、问卷调查、测试法对我国16个省份32个城市的288所中小学5 048名儿童青少年的各项体质健康指标进行数据采集,其中男性2 779名,女性2 269名。测试内容依次由反映身体形态、心肺耐力、肌肉力量、速度、灵敏、柔韧性的6个一级指标和9个二级指标构成,运用基于位置、尺度、形状的广义可加模型（GAMLSS）,在模型拟合中考虑年龄、性别等因素,建立青少年体质健康指标的参考百分位数曲线。结果表明,我国10~17岁青少年体质健康评价指标总体随年龄的增长显著提升,各相同年龄段男生的体质健康指标普遍优于女生,各项测试指标的变化呈现出一定程度的波动性特征且与年龄显著相关（P<0.05）。研究尝试构建了我国10~17岁青少年体质健康指标P5-P95百分位分布曲线与参考值。结论：研究所构建的百分位数曲线与参考值对于我国中小学生体质健康评价标准与常规模型参照体系的修订、体质健康数据库建立、学生身体素质的长期系统监测以及人才的选拔、培养与分流具有一定的借鉴价值。 相似文献
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