Talbert Erin E, Flynn Michael G, Bell Jeffrey W, Carrillo Andres E, Dill Marquita D, Christensen Christiania N, Thompson Colleen M
University of Florida, Gainsville, FL, USA.
Wastl Human Performance Laboratory, Department of Health and Kinesiology, Purdue University, West Lafayette, IN, USA.
Int J Exerc Sci. 2009 Jan 1;2(1):19-27. doi: 10.70252/RJLG4539. eCollection 2009.
(1) To compare the Lafayette Instruments (LI) skinfold caliper to the Lange (L) and Harpenden (H) calipers using a diverse subject population. (2) To determine the validity of the LI caliper in a subset of subjects by comparing body compositions from skinfold thicknesses to those measured by hydrostatic weighing (HW) and air displacement plethysmography (ADP). (3) To compare measurements obtained by experienced (EX) and inexperienced (IX) technicians using all three calipers.
Skinfold measurements were performed by both EX and IX technicians using three different calipers on 21 younger (21.2 ± 1.5 yrs) and 20 older (59.2 ± 4 yrs) subjects. Body compositions were calculated using the Jackson-Pollock seven-site and three-site formulas. HW and ADP tests were performed on a subset of subjects (10 younger, 10 older).
No significant differences existed between LI and L or H when measurements were made by EX. Further, the LI-EX measurements were highly correlated to both H-EX and L-EX. No significant differences existed in the subgroup between LI-EX and HW or ADP. Skinfold determinations made by EX and IX were similar.
Similar body compositions determined using LI, H, and L suggest that LI determines body composition as effectively as H and L. High correlations between the three calipers support this notion. Similar results between LI and HW/ADP subgroup suggest that the LI caliper may be a valid method of measuring body composition. Overall, performance by IX was similar to EX and suggests similar ease of use for all three calipers.
（1）使用多样化的受试者群体，将拉斐特仪器公司（LI）皮褶厚度计与兰格（L）和哈彭登（H）皮褶厚度计进行比较。（2）通过比较根据皮褶厚度测得的身体成分与通过水下称重（HW）和空气置换体积描记法（ADP）测得的身体成分，确定LI皮褶厚度计在一部分受试者中的有效性。（3）比较经验丰富（EX）和经验不足（IX）的技术人员使用这三种皮褶厚度计所获得的测量结果。
经验丰富和经验不足的技术人员使用三种不同的皮褶厚度计，对21名年轻受试者（21.2±1.5岁）和20名年长受试者（59.2±4岁）进行皮褶测量。使用杰克逊 - 波洛克七点和三点公式计算身体成分。对一部分受试者（10名年轻受试者，10名年长受试者）进行水下称重和空气置换体积描记法测试。
经验丰富的技术人员进行测量时，LI与L或H之间无显著差异。此外，LI - EX测量结果与H - EX和L - EX均高度相关。LI - EX与HW或ADP在亚组中无显著差异。经验丰富和经验不足的技术人员所做的皮褶测定结果相似。
使用LI、H和L测定的身体成分相似，这表明LI测定身体成分的效果与H和L一样有效。三种皮褶厚度计之间的高相关性支持了这一观点。LI与HW/ADP亚组之间的相似结果表明，LI皮褶厚度计可能是测量身体成分的一种有效方法。总体而言，经验不足的技术人员的表现与经验丰富的技术人员相似，这表明这三种皮褶厚度计的使用难度相似。
