Improvements in Physical Fitness are Associated with Favorable Changes in Blood Lipid Concentrations in Children
Improvements in Physical Fitness are Associated with Favorable Changes in Blood Lipid Concentrations in Children
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DOI：
10.52082/jssm.2021.404
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发表时间：
2021-09-01
影响因子：
3.2
通讯作者：
Edamoto, Kanako
中科院分区：
文献类型：
--
作者：
Kidokoro, Tetsuhiro;Edamoto, Kanako
虽然越来越多的证据表明心肺健康和肌肉健康的益处，但关于其他体能（PF）成分如何与儿童心血管疾病（CVD）风险标志物相关的知识很少。此外，许多相关证据来自单一时间点的CVD风险标志物的纵向研究（即，本研究的目的是检查PF的不同性能指标的初始1年变化（即，耐力表现、肌肉力量/耐力、柔韧性、敏捷性和速度）可以预测儿童血脂浓度的随后变化（2年变化）。这项为期2年的纵向研究共纳入251名日本儿童（平均年龄9.2 ± 0.4岁）。进行PF测试，以综合评估参与者的体能水平（握力[上身肌肉力量]、仰卧起坐[肌肉耐力]、坐位体前屈[柔韧性]、侧步[敏捷性]、20米往返跑[耐力表现]、50米短跑[速度]、立定跳远[下身肌肉力量]和垒球投掷[爆发性手臂力量和投掷能力]）。空腹血脂测定甘油三酯（TG）、高密度脂蛋白胆固醇（HDL-C）、低密度脂蛋白胆固醇（LDL-C）和非HDL-C浓度。多水平线性回归用于检查PF的先前变化（超过1年）与血脂浓度的随后变化（超过2年）之间的关联。我们还研究了PF的2年变化和血脂浓度的2年变化之间的同时关联。对于男孩来说，先前的握力改善与TG浓度呈负相关（β =-0.260，p = 0.030）;小腿仰卧起坐的改善与聚集性血脂评分呈负相关（β =-0.301，p = 0.038）和非HDL-C（β =-0.310，p = 0.044）; 50米短跑的改善与随后的非HDL-C（β = 0.348，p = 0.006）和LDL-C（β = 0.408，p = 0.001）的变化相关。对于女孩，握力的改善与TG浓度呈负相关（β =-0.306，p = 0.017）;立定跳远的改善与非HDL-C（β =-0.269，p = 0.021）和LDL-C（β =-0.275，p = 0.019）呈负相关。对于男孩和女孩，PF的2年变化和血脂浓度的2年变化之间没有显着的同时关联。总之，先前的身体健康的变化与血脂浓度的变化可能反映了对生长和成熟的生理适应，因为这些协会在随后的一年中减少。
Although accumulating evidence suggests the benefits of cardiorespiratory fitness and muscular fitness, little knowledge exists on how other physical fitness (PF) components are associated with cardiovascular disease (CVD) risk markers in children. Additionally, much of the relevant evidence is from longitudinal studies with CVD risk markers at a single time point (i.e., baseline) rather than changes in PF. The purpose of the present study was to examine whether initial 1-year changes in different performance measures of PF (i.e., endurance performance, muscular strength/endurance, flexibility, agility, and speed) can predict the subsequent changes (2-year change) in blood lipid concentrations in children. This 2-year longitudinal study included a total of 251 Japanese children (mean age 9.2 +/- 0.4). PF tests were performed to comprehensively evaluate the participant's fitness levels (handgrip strength [upper body muscular strength], bent-leg situps [muscular endurance], sit-and-reach [flexibility], side-step [agility], 20-meter shuttle run [endurance performance], 50-meter sprint [speed], standing long jump [lower body muscular strength], and softball throw [explosive arm strength and throwing ability]). Fasting lipid profile was assayed for triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and non-HDL-C concentration. Multilevel linear regressions were used to examine the associations between the preceding changes (over 1-year) in PF and subsequent changes (over 2-years) in blood lipid concentrations. We also examined the simultaneous associations between 2-year changes in PF and 2-year changes in blood lipid concentrations. For boys, preceding improvement in handgrip strength was negatively associated with TG concentration (beta = -0.260, p = 0.030); improvements in bent-leg sit-ups were negatively associated with clustered lipid scores (beta = -0.301, p = 0.038) and non-HDL-C (beta = -0.310, p = 0.044); and improvements in 50m sprinting were associated with subsequent changes in non-HDL-C (beta = 0.348, p = 0.006) and LDL-C (beta = 0.408, p = 0.001). For girls, improvements in handgrip strength was negatively associated with TG concentration (beta = -0.306, p = 0.017); and improvements in standing long jump were negatively associated with non-HDL-C (beta = -0.269, p = 0.021) and LDL-C (beta = -0.275, p = 0.019). For boys and girls, there were no significant simultaneous associations between 2-year changes in PF and 2-year changes in blood lipid concentrations. In conclusion, preceding change in physical fitness in relation to change in blood lipid concentration likely reflect a physiological adaptation to growth and maturation since these associations diminished in the subsequent year.