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首页> 外文期刊>Sports >Effect of Thoracic Gas Volume Changes on Body Composition Assessed by Air Displacement Plethysmography after Rapid Weight Loss and Regain in Elite Collegiate Wrestlers
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Effect of Thoracic Gas Volume Changes on Body Composition Assessed by Air Displacement Plethysmography after Rapid Weight Loss and Regain in Elite Collegiate Wrestlers

机译：精英大学摔跤运动员快速减肥和恢复体重后胸廓气量变化对空气置换体积描记法评估身体成分的影响

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We investigated the effect of rapid weight loss (RWL) and weight regain (WR) on thoracic gas volume (V TG ) and body composition assessment using air displacement plethysmography (ADP) in male wrestlers. Eight male elite collegiate wrestlers completed a RWL regimen (6% of body mass) over a 53-h period, which was followed by a 13-h WR period. ADP was used at three time points (baseline (T1), post-RWL (T2) and post-WR (T3)) according to the manufacturer’s testing recommendations. The total body water and bone mineral content were estimated using the stable isotope dilution method and dual energy X-ray absorptiometry, respectively, at the same time points. Body composition was assessed with two-component (2C) or four-component (4C) models using either the measured V TG (mV TG ) or predicted V TG (pV TG ). Measured V TG increased from T1 to T2 (0.36 ± 0.31 L, p 0.05) and decreased from T2 to T3 (?0.29 ± 0.15 L, p 0.01). However, the changes in fat mass and fat free mass, which were calculated by both 2C and 4C models, were not significantly different when compared between calculations using mV TG and those using pV TG . Our results indicate that V TG significantly changes during RWL and WR, but both measured and predicted V TG can be used to assess changes in body composition during RWL and WR.
机译：我们调查了男性摔跤运动员中快速减肥（RWL）和体重恢复（WR）对胸气量（V TG）和使用空气体积体积描记法（ADP）的身体成分评估的影响。 8名男性精英大学摔跤运动员在53小时内完成了RWL方案（占体重的6％），随后是WR 13小时。根据制造商的测试建议，在三个时间点（基线（T1），RWL后（T2）和WR后（T3））使用了ADP。分别在同一时间点使用稳定同位素稀释法和双能X射线吸收法估算了人体的总水分和骨骼矿物质含量。使用测得的V TG（mV TG）或预测的V TG（pV TG），通过两组分（2C）或四组分（4C）模型评估身体组成。测得的V TG从T1升高到T2（0.36±0.31 L，p <0.05），从T2降低到T3（Δ0.29±0.15 L，p <0.01）。但是，在使用mV TG和使用pV TG进行的计算之间进行比较时，由2C和4C模型计算出的脂肪量和无脂肪量的变化没有显着差异。我们的结果表明，V TG在RWL和WR期间发生显着变化，但测量和预测的V TG均可用于评估RWL和WR期间身体成分的变化。

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