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BioMed Research International
Volume 2016, Article ID 7530105, 6 pages
Clinical Study

Effects of a Lifestyle-Based Physical Activity Intervention on Medical Expenditure in Japanese Adults: A Community-Based Retrospective Study

1Tsukuba Wellness Research Co., Ltd., Kashiwa, Chiba 277-8519, Japan
2School of Nursing, Tokyo Women’s Medical University, Tokyo 162-8666, Japan
3Department of Sports Medicine, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
4Department of Preventive Medicine, Gachon University College of Medicine, Incheon 21999, Republic of Korea

Received 28 December 2015; Revised 19 May 2016; Accepted 20 June 2016

Academic Editor: Nana K. Anokye

Copyright © 2016 Yasuyo Yoshizawa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background. This study aimed to investigate whether a lifestyle-based physical activity program could contribute to reduced medical expenditure. Methods. The study participants were 60 adults aged 63.1 (standard deviation, 4.4) years in the intervention group; the case-control group consisted of 300 adults who were randomly selected from Japan’s national health insurance system. This community-based retrospective study incorporated a 3-year follow-up. Results. The total and outpatient medical expenditure in the intervention group were significantly lower than in the control group: total expenditure, $US640.4/year; outpatient expenditure, $369.1/year. The odds ratio for outpatient visiting was 6.47-fold higher in the control than in the intervention group. Conclusion. Our study suggests that a health program to promote physical activity can result in reduced total medical expenditure, outpatient medical expenditure, and possibly also inpatient medical expenditure.