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An Objective and Child-friendly Assessment of Arm Function by Using a 3-D Sensor
Published on: February 12, 2018
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Comparative study on three different methods for arm-span measurement: the Japan environment and Children's study
Mayumi Tsuji1, Tadayuki Ayabe2, Rie Tanaka3
1Department of Environmental Health, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, 807-8555, Japan. tsuji@med.uoeh-u.ac.jp.
Environmental Health and Preventive Medicine
|November 23, 2017
Summary
A new method (C) for measuring arm span in children demonstrated improved accuracy and consistency compared to standard methods A and B. This enhanced technique is crucial for reliable growth assessments in epidemiological studies.
Area of Science:
- Pediatric endocrinology
- Anthropometry
- Epidemiological research methods
Background:
- Arm span measurement is vital for assessing growth and hormone deficiencies.
- Accurate and rapid measurement techniques are needed for large-scale epidemiological surveys.
- Existing arm span measurement methods can yield variable results across institutions.
Purpose of the Study:
- To evaluate a novel, improved method (Method C) for measuring children's arm span.
- To compare the accuracy and reliability of Method C against two standard methods (A and B).
Main Methods:
- Nine 6-year-old children participated in the study.
- Arm span was measured twice using three methods: A (No-Wall), B (Wall & No-Line), and C (Wall & Line).
- Method C involves measuring against a wall with a paper featuring horizontal lines.
Main Results:
- The improved Method C resulted in a marginally smaller difference between the first and second measurements.
- This indicates enhanced precision and reliability with Method C.
Conclusions:
- The newly developed Method C is the optimal approach for accurate arm span measurement.
- This improved method offers greater consistency, beneficial for clinical and research settings.

