Barlett H L, Mance M J, Buskirk E R
Med Sci Sports Exerc. 1984 Jun;16(3):311-5.
Previous research in this laboratory demonstrated a reduction in expiratory reserve volume of the lungs (ERV) with increasing body fatness (%F, by densitometry). The present study was done to determine if smaller ERV values could be demonstrated in lean female athletes with greater than normal upper-body muscle development. Expiratory reserve volume, vital capacity (VC), and segmental body volumes by densitometry were measured in members of two collegiate women's teams--gymnastics (G) (N = 10) and track (R) (N = 10). The runners provided a control group by being similar to gymnasts in age, weight, and body fatness, but they did not engage in upper-body weight training or gymnastic exercises. The two groups were not significantly different in body weight (means G +/- SD = 53.0 +/- 6.1 kg; means R = 50.8 +/- 4.6 kg) or %F (means G = 16.8 +/- 3.2%; means R = 14.8 +/- 3.8%), but R subjects were taller (means = 165.4 +/- 5.5 cm vs 158.7 +/- 4.8 cm, P less than 0.01). Expiratory reserve volume, expressed as a percent of VC, (ERV X VC-1) 100, was significantly (P less than 0.001) less in the gymnasts (means +/- SD = 29.7 +/- 7.1) as compared to the runners (43.1 +/- 6.4). All other lung capacities as volumes were comparable in both groups. Arm and thorax volumes indicated greater upper-body size in the G subjects (arm volume, means +/- SD of G = 4.8 +/- 0.6 liters, of R = 4.0 +/- 0.6 liters, P less than 0.01; thorax volume, means +/- SD of G = 7.8 +/- 1.4 liters, or R = 5.6 +/- 1.0 liters, P less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS)
本实验室之前的研究表明，随着身体脂肪含量（通过密度测定法得出的%F）增加，肺的呼气储备量（ERV）会减少。本研究旨在确定在具有大于正常上身肌肉发育的瘦女性运动员中，是否能证明ERV值更小。对两个大学女子运动队——体操队（G）（N = 10）和田径队（R）（N = 10）的队员测量了呼气储备量、肺活量（VC）以及通过密度测定法得出的身体各部分体积。跑步运动员作为对照组，他们在年龄、体重和身体脂肪含量方面与体操运动员相似，但不进行上身负重训练或体操练习。两组在体重（G组均值±标准差 = 53.0±6.1千克；R组均值 = 50.8±4.6千克）或%F（G组均值 = 16.8±3.2%；R组均值 = 14.8±3.8%）方面无显著差异，但R组受试者更高（均值 = 165.4±5.5厘米对158.7±4.8厘米，P < 0.01）。与跑步运动员（43.1±6.4）相比，体操运动员的呼气储备量以VC的百分比表示（ERV×VC - 1）×100显著更低（P < 0.001）（均值±标准差 = 29.7±7.1）。两组的所有其他肺容量作为体积是可比的。手臂和胸部体积表明G组受试者的上身尺寸更大（手臂体积，G组均值±标准差 = 4.8±0.6升，R组 = 4.0±0.6升，P < 0.01；胸部体积，G组均值±标准差 = 7.8±1.4升，R组 = 5.6±1.0升，P < 0.001）。（摘要截断于250字）
