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首页> 外文期刊>Scandinavian journal of medicine & science in sports. >Longitudinal influence of musculo-skeletal injuries and extra physical education on physical fitness in schoolchildren
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Longitudinal influence of musculo-skeletal injuries and extra physical education on physical fitness in schoolchildren

机译：肌肉骨骼损伤和额外体育锻炼对小学生身体素质的纵向影响

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The aims of this study were to investigate if (A) injuries and (B) increased physical education (PE) influenced the development of physical fitness in schoolchildren. Simultaneously, to investigate if a possible PE effect was modified by sport participation outside school hours. This was a longitudinal controlled school-based study. Six schools with 270 min of PE (extra PE) and four schools with 90 min of PE were followed up for 2.5 years. In total, 1054 children were included for analysis (normal PE = 443, extra PE = 611). Development in fitness was analyzed using composite z-scores from six fitness tests measured four times. Information of injury and sport was derived from weekly automated mobile phone text messages surveying the presence of musculo-skeletal pain and organized sport participation. Injury and extra PE both influenced the development of physical fitness. Injury decreased development of physical fitness with -1.01 composite z-score units (95% CI: -1.57; -0.45). Extra PE increased physical fitness development with 0.80 (95% CI: 0.49; 1.10) composite z-score units. The influence of injury was not dependent on extra PE. No modifying effect was found by mean weekly sport participation outside school hours. In conclusion, extra PE had a positive effect, whereas injuries had a negative effect on physical fitness development in schoolchildren.
机译：这项研究的目的是调查（A）伤害和（B）增加的体育教育（PE）是否影响了学龄儿童的身体素质发展。同时，调查是否可以通过在课余时间参加体育运动来改变可能的体育锻炼效果。这是一项纵向控制的基于学校的研究。对六所学校进行了270分钟的体育课（额外体育课），对四所学校进行了90分钟的体育课，随访了2.5年。总共包括1054名儿童进行了分析（正常PE = 443，额外PE = 611）。使用来自四次测量的六个适应性测试的复合z得分分析了适应性的发展。受伤和运动的信息来自每周自动移动电话短信，这些短信调查了肌肉骨骼疼痛的存在和有组织的运动参与。伤害和多余的体育锻炼都影响身体健康的发展。伤害降低了-1.01复合z评分单位的身体健康状况（95％CI：-1.57; -0.45）。额外的PE通过0.80（95％CI：0.49; 1.10）复合Z评分单元提高了身体健康水平。伤害的影响并不取决于额外的体育锻炼。在课余时间平均每周参加体育运动没有发现改善作用。总之，额外的体育锻炼对小学生的身体健康发展有积极作用，而伤害对他们的身体健康发展有不利影响。

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