Efficacy of a community-based weight reduction program to improve exercise and diet behavior in overweight adults

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  • EGAWA Ken'ichi
    Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare
  • OIDA Yukio
    Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare School of Life System Science and Technology, Chukyo University
  • ARAO Takashi
    Physical Fitness Research Institute, Meiji Yasuda Life Foundation of Health and Welfare Waseda University Faculty of Sports Sciences
  • MATSUZUKI Hiroe
    Tokyo Kasei-Gakuin University, Faculty of Home Economics
  • SHIRAKO Miyuki
    Tokyo Kasei-Gakuin University, Faculty of Home Economics
  • KASAI Wakako
    Akiruno City, Tokyo

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Other Title
  • 過体重・肥満成人における運動と食習慣の改善による体重減少を目的とした地域保健プログラムの有効性
  • カタイジュウ ヒマン セイジン ニ オケル ウンドウ ト ショク シュウカン ノ カイゼン ニ ヨル タイジュウ ゲンショウ オ モクテキ ト シタ チイキ ホケン プログラム ノ ユウコウセイ

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Objective The study was a non-randomized, parallel-group comparison to evaluate the efficacy of a community-based weight reduction program with exercise and diet modification for overweight adults using existing community health services.<br/>Methods The study population consisted of 1,115 community-dwelling people who underwent annual health checkups in 2002 and were screened by exclusion criteria (age>65, body mass index (BMI)<24.2). They received a mail request to select one of two courses; a usual single-session health instruction course (control group) or a 9-month weight management course (intervention group). Forty six patients registered in the intervention group, and fifty patients in the control group. The analyzed sample consisted of 76 participants (9 males and 67 females) excluding dropouts from November 2002 to July 2003. Intervention included monthly classes (2 hours per class, 9 classes) consisting of an individual support program for behavioral change and a community support program for continuation after the class. The control group participants received conventional instructions based on their health status.<br/>Results No significant inter-group differences were observed at baseline, except in age and height of females. The mean BMI decreased from 27.2(SD=2.8) kg•m−2 to 25.3(3.1) kg•m−2 in the intervention group, and 26.4(1.7) kg•m−2 to 26.1(1.7) kg•m−2 in the control group. Repeated measures analysis of variance showed significant time and group interaction adjusted for gender and age. The proportion showing maintenance and action in stage of exercise behavior increased in the intervention group (31% to 60%), but remained stable in the control group (45% to 48%). The proportion showing maintenance and action in stage of diet behavior increased in the intervention group (24% to 80%), but remained stable in the control group (29% to 26%).<br/>Conclusions Community-based weight reduction programs may be effective to facilitate change in exercise and diet behavior for body weight reduction in overweight adults.

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