PDF(Pubmed)
Abstract：
BACKGROUND: The performance of young swimmers is the result of a multifactorial process that is influenced by anthropometric characteristics and biological maturation. The purpose of our study was to investigate the effect of stages of biological maturation and body surface area on cardiopulmonary fitness indicators in preadolescent female swimmers, for whom menstruation has not started.
METHODS: Thirty female preadolescent swimmers (age 13.4 ± 1.0 years) participated in this study. We recorded anthropometric and morphological characteristics, stages of biological maturation, and pulmonary function parameters, and the swimmers underwent cardiopulmonary exercise testing.
RESULTS: The cut-off was set for body surface area (BSA) at 1.6 m2 and for biological maturation stages at score 3. The BSA results showed differences in variabilities in maximal effort oxygen pulse (p < 0.001), oxygen uptake (p < 0.001), ventilation (p = 0.041), tidal volume (p < 0.001), and oxygen breath (p < 0.001). Tanner stage score results showed differences in variabilities in maximal effort breath frequency (p < 0.001), tidal volume (p = 0.013), and oxygen breath (p = 0.045). Biological maturation stages and BSA were correlated during maximal effort with oxygen breath (p < 0.001; p < 0.001), oxygen uptake (p = 0.002; p < 0.001), and oxygen pulse (p < 0.001; p < 0.001).
CONCLUSIONS: In conclusion, the findings of our study showed that the girls who had a smaller body surface area and biological maturation stage presented lower values in maximal oxygen uptake and greater respiratory work.
METHODS: Thirty female preadolescent swimmers (age 13.4 ± 1.0 years) participated in this study. We recorded anthropometric and morphological characteristics, stages of biological maturation, and pulmonary function parameters, and the swimmers underwent cardiopulmonary exercise testing.
RESULTS: The cut-off was set for body surface area (BSA) at 1.6 m2 and for biological maturation stages at score 3. The BSA results showed differences in variabilities in maximal effort oxygen pulse (p < 0.001), oxygen uptake (p < 0.001), ventilation (p = 0.041), tidal volume (p < 0.001), and oxygen breath (p < 0.001). Tanner stage score results showed differences in variabilities in maximal effort breath frequency (p < 0.001), tidal volume (p = 0.013), and oxygen breath (p = 0.045). Biological maturation stages and BSA were correlated during maximal effort with oxygen breath (p < 0.001; p < 0.001), oxygen uptake (p = 0.002; p < 0.001), and oxygen pulse (p < 0.001; p < 0.001).
CONCLUSIONS: In conclusion, the findings of our study showed that the girls who had a smaller body surface area and biological maturation stage presented lower values in maximal oxygen uptake and greater respiratory work.
摘要：
背景：年轻游泳者的表现是多因素过程的结果，该过程受人体测量特征和生物成熟的影响。我们的研究目的是调查青春期前女性游泳者的生物成熟阶段和体表面积对心肺健康指标的影响，月经还没有开始。
方法：30名女性青春期前游泳者（年龄13.4±1.0岁）参加了这项研究。我们记录了人体测量和形态特征,生物成熟的阶段，和肺功能参数，游泳者接受了心肺运动测试。
结果：将体表面积（BSA）的截止值设定为1.6m2，将生物成熟阶段的截止值设定为3分。BSA结果显示最大努力氧脉冲的变异性存在差异（p<0.001），摄氧量（p<0.001），通气（p=0.041），潮气量（p<0.001），和氧气呼吸（p<0.001）。Tanner阶段评分结果显示最大努力呼吸频率的变异性存在差异（p<0.001），潮气量（p=0.013），和氧气呼吸（p=0.045）。生物成熟阶段和BSA在最大努力期间与氧气呼吸相关（p<0.001；p<0.001），摄氧量（p=0.002；p<0.001），和氧脉搏（p<0.001；p<0.001）。
结论：结论：我们的研究结果表明，体表面积和生物成熟期较小的女孩的最大摄氧量和呼吸功的值较低。
方法：30名女性青春期前游泳者（年龄13.4±1.0岁）参加了这项研究。我们记录了人体测量和形态特征,生物成熟的阶段，和肺功能参数，游泳者接受了心肺运动测试。
结果：将体表面积（BSA）的截止值设定为1.6m2，将生物成熟阶段的截止值设定为3分。BSA结果显示最大努力氧脉冲的变异性存在差异（p<0.001），摄氧量（p<0.001），通气（p=0.041），潮气量（p<0.001），和氧气呼吸（p<0.001）。Tanner阶段评分结果显示最大努力呼吸频率的变异性存在差异（p<0.001），潮气量（p=0.013），和氧气呼吸（p=0.045）。生物成熟阶段和BSA在最大努力期间与氧气呼吸相关（p<0.001；p<0.001），摄氧量（p=0.002；p<0.001），和氧脉搏（p<0.001；p<0.001）。
结论：结论：我们的研究结果表明，体表面积和生物成熟期较小的女孩的最大摄氧量和呼吸功的值较低。
