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Open AccessArticle

Reliability of Using Motion Sensors to Measure Children’s Physical Activity Levels in Exergaming

1
School of Kinesiology, University of Minnesota Twin Cities, Minneapolis, MN 55455, USA
2
Department of Education, East China Normal University, Shanghai 200062, China
3
Department of Health, Physical Education and Recreation, Western Michigan University, Kalamazoo, MI 49008, USA
4
Department of Applied Human Sciences, University of Minnesota Duluth, Duluth, MN 55812, USA
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2018, 7(5), 100; https://doi.org/10.3390/jcm7050100
Received: 2 April 2018 / Revised: 27 April 2018 / Accepted: 30 April 2018 / Published: 2 May 2018
Objectives: This study examined the reliability of two objective measurement tools in assessing children’s physical activity (PA) levels in an exergaming setting. Methods: A total of 377 children (190 girls, Mage = 8.39, SD = 1.55) attended the 30-min exergaming class every other day for 18 weeks. Children’s PA levels were concurrently measured by NL-1000 pedometer and ActiGraph GT3X accelerometer, while children’s steps per min and time engaged in sedentary, light, and moderate-to-vigorous PA were estimated, respectively. Results: The results of intraclass correlation coefficient (ICC) indicated a low degree of reliability (single measures ICC = 0.03) in accelerometers. ANOVA did detect a possible learning effect for 27 classes (p < 0.01), and the single measures ICC was 0.20 for pedometers. Moreover, there was no significant positive relationship between steps per min and time spent in moderate-to-vigorous physical activity (MVPA). Finally, only 1.3% variance was explained by pedometer as a predictor using Hierarchical Linear Modeling to further explore the relationship between pedometer and accelerometer data. Conclusions: The NL-1000 pedometers and ActiGraph GT3X accelerometers have low reliability in assessing elementary school children’s PA levels during exergaming. More research is warranted in determining the reliable and accurate measurement information regarding the use of modern devices in exergaming setting. View Full-Text
Keywords: pedometers; accelerometers; measurement; physical activity levels; active video games pedometers; accelerometers; measurement; physical activity levels; active video games
MDPI and ACS Style

Zeng, N.; Gao, X.; Liu, Y.; Lee, J.E.; Gao, Z. Reliability of Using Motion Sensors to Measure Children’s Physical Activity Levels in Exergaming. J. Clin. Med. 2018, 7, 100.

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