Department of Biological Sciences, Centre for Sports and Exercise Science, University of Essex, Wivenhoe Park, Colchester, Essex CO4 3SQ, UK.
Adv Exp Med Biol. 2010;662:177-81. doi: 10.1007/978-1-4419-1241-1_25.
Adipose content in the region over the vastus lateralis muscle was measured in a young (21.1 +/- 3.1 years old, mean +/- SD) population of males (n = 62) and females (n = 28). Three techniques were used: skinfold thickness, ultrasound and near infrared spectroscopy. All techniques closely correlated with each other and all showed a significantly larger adipose content in females and a limited overlap with the range of values in males. Spatially resolved near infrared spectroscopy (SRS-NIRS) was then used to measure the tissue oxygenation index (TOI) at the same site. A source-detector separation of 4 cm was used to allow for significant light penetration into muscle tissue. TOI at rest was significantly higher in the female (65.3 +/- 7.0, mean +/- SD) than the male (61.9 +/- 5.1, mean +/- SD) group. There was a strong positive correlation between adipose content and TOI in male subjects. However, no correlation was seen in the female group. The possible optical and physiological explanations for these results are discussed.
在年轻人群（21.1 ± 3.1 岁，均值 ± 标准差）中，我们对 62 名男性和 28 名女性股外侧肌上方区域的脂肪含量进行了测量。我们使用了三种技术：皮褶厚度、超声和近红外光谱。所有技术彼此之间都密切相关，且都显示出女性的脂肪含量明显更高，与男性的数值范围存在一定的重叠。然后，我们使用空间分辨近红外光谱（SRS-NIRS）在同一部位测量组织氧合指数（TOI）。源探测器的分离距离为 4 厘米，以允许光穿透到肌肉组织中。女性（65.3 ± 7.0，均值 ± 标准差）的静息 TOI 显著高于男性（61.9 ± 5.1，均值 ± 标准差）。男性受试者的脂肪含量与 TOI 呈强正相关。然而，在女性组中未观察到相关性。我们讨论了这些结果可能的光学和生理解释。
