Department of Environmental Health, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan.
Medical Support Center for Japan Environment and Children's Study (JECS), National Center for Child Health and Development, Tokyo, Japan.
Environ Health Prev Med. 2017 Apr 4;22(1):28. doi: 10.1186/s12199-017-0632-9.
Arm span is an important measure for the assessment of growth and hormone deficiency diseases. In an epidemiological survey, with a large number of subjects' indicators, it is especially valuable to establish methods which can measure both quickly and accurately. However, there are various methods, and the length of arm span may vary according to the medical institution.
The arm span of nine 6-year old subjects was measured using two institutional standard methods, A and B, and a third method C which is an improved method and has been used for the first time in this study. A, No-Wall, with heels together the child stretches the arms out to the sides. B, Wall & No-Line, the child stands against the wall with heels together and spreads the arms against the wall. C, Wall & Line, the method is the same as B except a paper with horizontal lines is placed on the wall. We measured twice by each method.
The difference between the 1st and 2nd measurements was marginally significantly smaller by using method of C.
The method C, which we improved, is the best way to measure arm span.
臂展是评估生长和激素缺乏疾病的重要指标。在一项涉及大量受试者指标的流行病学调查中，建立快速准确测量臂展的方法尤为重要。然而，臂展的测量方法多种多样，而且臂展的长度可能因医疗机构而异。
使用两种机构标准方法 A 和 B，以及一种新的改良方法 C，对 9 名 6 岁儿童的臂展进行了测量。A 法，无墙，让孩子脚跟并拢，将手臂向两侧伸展。B 法，靠墙无线，让孩子脚跟并拢，手臂靠在墙上。C 法，靠墙有线，与 B 法相同，只是在墙上贴了一张有横线的纸。我们每种方法测量两次。
方法 C 两次测量的差值略小。
我们改进的 C 法是测量臂展的最佳方法。
