A pilot crossover study: effects of an intervention using an activity monitor with computerized game functions on physical activity and body compositionReport as inadecuate




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Journal of Physiological Anthropology

, 33:35

First Online: 02 December 2014Received: 01 September 2014Accepted: 07 November 2014

Abstract

BackgroundWearing an activity monitor as a motivational tool and incorporating a behavior-based reward system or a computerized game element might have a synergistic effect on an increase in daily physical activity, thereby inducing body fat reduction. This pilot crossover study aimed to examine the effects of a short-term lifestyle intervention using an activity monitor with computerized game functions on physical activity and body composition.

MethodsTwenty healthy volunteers 31 ± 3 years participated in a 12-week crossover study. The participants were randomly assigned to either Group A a 6-week game intervention followed by a 6-week normal intervention or Group B a 6-week normal intervention followed by a 6-week game intervention. The participants wore both a normal activity monitor Lifecorder EX and an activity monitor with computerized game functions Yuuhokei during the game intervention, whereas they only wore a normal activity monitor during the normal intervention. Before, during, and after the intervention, body composition was assessed.

ResultsSignificantly more daily steps were recorded for the game intervention than for the normal intervention 10,520 ± 562 versus 8,711 ± 523 steps-day, P < 0.01. The participants performed significantly more physical activity at an intensity of ≥ 3 metabolic equivalents METs in the game intervention than in the normal intervention 3.1 ± 0.2 versus 2.4 ± 0.2 METs · hour-day, P < 0.01. Although body mass and fat were significantly reduced in both periods P < 0.01, the difference in body fat reduction was significantly greater in the game intervention than in the normal intervention P < 0.05.

ConclusionsA short-term intervention using an activity monitor with computerized game functions increases physical activity and reduces body fat more effectively than an intervention using a standard activity monitor.

KeywordsAmount of physical activity Steps Yuuhokei Lifecorder EX Body fat Health Physical Activity Reference for Health Promotion 2013 AbbreviationsACSMAmerican College of Sports Medicine

AHAAmerican Heart Association

ANOVAanalysis of variance

Amount of PAamount of physical activity

BPblood pressure

BMIbody mass index

CVcoefficients of variations

Ggame intervention

JISJapanese Industrial Standards

METsmetabolic equivalents

Nnormal intervention

PCpersonal computer

SEMstandard error of the mean.

Electronic supplementary materialThe online version of this article doi:10.1186-1880-6805-33-35 contains supplementary material, which is available to authorized users.

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Author: Masato Nishiwaki - Akinori Kuriyama - Yumi Ikegami - Nana Nakashima - Naoyuki Matsumoto

Source: https://link.springer.com/



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