Ward Richard, Anderson Gregory
School of Kinesiology, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada.
Am J Hum Biol. 1993;5(5):541-548. doi: 10.1002/ajhb.1310050505.
This study examined the relationship between skinfold compressibility and skinfold thickness while proposing a 3-caliper technique for the estimation of uncompressed skinfold thickness. Skinfold and ultrasound measurements of skin-plus-adipose tissue were made at seven sites on 15 females (mean age 22.0 yr) and 13 males (mean age 23.2 yr.) The estimated uncompressed thickness (ZT) determined with the 3-caliper technique correlated well with ultrasound-determined thickness (UT), with the 3-caliper technique offering a valid, simple and inexpensive method of estimating uncompressed skinfold thickness. Using linear regression analyses, skinfold compressibility varied with skinfold thickness. Using a compression percentage [C(Z/10)], both UT and ZT exhibited positive slopes with tissue compressibility. The concept of absolute thickness change (TD) from uncompressed (ZT) to compressed (H ) thickness values was adopted for use in covariance analysis in the assessment of gender and site differences in skinfold compressibility and was compared to results of traditional compression percentage analysis of variance. In a second sample of 40 males (mean age 25.7 yr) and 30 females (mean age 25.0 yr), a significant site difference was found using compression percentage ANOVA which was not present using the TD ANCOVA. This difference in results may be due to the fact that compression percentage is linearly related to thickness even though it is included as the denominator in the calculation of compression percentage. It was concluded that the TD covariance method should be used in preference to the compression percentage ANOVA when evaluating skinfold compressibility differences in gender, age and site of measurement. © 1993 Wiley-Liss, Inc.
本研究探讨了皮褶可压缩性与皮褶厚度之间的关系，同时提出了一种用于估计未压缩皮褶厚度的三卡尺技术。对15名女性（平均年龄22.0岁）和13名男性（平均年龄23.2岁）的7个部位进行了皮肤加脂肪组织的皮褶和超声测量。用三卡尺技术测定的估计未压缩厚度（ZT）与超声测定厚度（UT）相关性良好，三卡尺技术提供了一种有效、简单且廉价的估计未压缩皮褶厚度的方法。通过线性回归分析，皮褶可压缩性随皮褶厚度而变化。使用压缩百分比[C(Z/10)]，UT和ZT均呈现出与组织可压缩性相关的正斜率。采用从未压缩（ZT）到压缩（H）厚度值的绝对厚度变化（TD）概念用于协方差分析，以评估皮褶可压缩性的性别和部位差异，并与传统压缩百分比方差分析结果进行比较。在另一组由40名男性（平均年龄25.7岁）和30名女性（平均年龄25.0岁）组成的样本中，使用压缩百分比方差分析发现了显著的部位差异，而使用TD协方差分析时则不存在这种差异。结果的这种差异可能是由于压缩百分比与厚度呈线性相关，尽管它在压缩百分比计算中作为分母。得出的结论是，在评估皮褶可压缩性的性别、年龄和测量部位差异时，应优先使用TD协方差方法而非压缩百分比方差分析。© 1993威利 - 利斯公司。
