The association between physical activity, fitness and body mass index on mental well-being and quality of life in adolescents.
The association between physical activity, fitness and body mass index on mental well-being and quality of life in adolescents.
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DOI：
10.1007/s11136-018-1915-3
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发表时间：
2018-09
期刊：
影响因子：
--
通讯作者：
Mackintosh KA
中科院分区：
文献类型：
--
作者：
Eddolls WTB;McNarry MA;Lester L;Winn CON;Stratton G;Mackintosh KA
本研究旨在探讨剧烈体力活动、体重指数(BMI)和心肺适能对抑郁症状的中介作用及其对生活质量(QOL)的直接和间接影响。对576名青少年(314名男孩，12.5 ± 1.1年)的体力活动水平、心肺适合度、体重指数、抑郁症状水平和生活质量进行了测量。结构方程模型被用来评估变量之间线性结构联系的差异。该模型表明，心肺健康(β = =0.16，p <； 0.001)和抑郁症状(β−=0.52，p <； 0.001)都与身体生活质量直接相关，抑郁症状也直接影响心理生活质量(β=p−=0.79，p <； 0.01)。身体质量指数与身体生活质量间接相关，由抑郁症状(β=0.06，p <； 0.001)和心肺功能(β = =0.05，p <； 0.001)和抑郁症状(β=0.09，p−<； ； 0.001)中介。剧烈的体力活动通过心肺功能的调节间接地与生活质量相关(β=0.04，p <； 0.001)。模型表明，剧烈的体力活动、心肺健康和BMI直接或间接地与精神健康和生活质量有关。因此，可以推测，通过增加剧烈的体力活动来增强心肺健康和BMI可能对青少年的心理健康和生活质量都有好处。
The purpose of the current study was to investigate the mediatory role between vigorous physical activity, body mass index (BMI), and cardiorespiratory fitness on symptoms of depression and their subsequent direct and indirect effects on quality of life (QoL). Five hundred and seventy-six adolescents’ (314 boys, 12.5 ± 1.1 years) physical activity levels, cardiorespiratory fitness, BMI, levels of depressive symptoms, and QoL were measured. Structural equation modelling was used to evaluate the difference in linear structural associations between variables. The model suggested that cardiorespiratory fitness (β = 0.16, p < 0.001) and symptoms of depression (β = − 0.52, p < 0.001) were both directly associated with physical QoL, with depressive symptoms also directly influencing psychological QoL (β = − 0.79, p < 0.01). Body mass index was indirectly associated with physical QoL, mediated by both symptoms of depression (β = − 0.06, p < 0.001) and cardiorespiratory fitness (β = 0.05, p < 0.001) and psychological QoL mediated by symptoms of depression (β = − 0.09, p < 0.001). Vigorous physical activity was indirectly associated with QoL, mediated by cardiorespiratory fitness (β = − 0.04, p < 0.001). Models suggested that vigorous physical activity, cardiorespiratory fitness and BMI were associated, both directly and indirectly, with mental well-being and QoL. It could, therefore, be postulated that enhancing cardiorespiratory fitness and BMI through increasing vigorous physical activity may be beneficial to both mental well-being and QoL in adolescents.
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