Association of self-reported physical activity patterns and socio-demographic factors among normal-weight and overweight Japanese men

BMC Public Health. 2012 May 21;12:278. doi: 10.1186/1471-2458-12-278.


Background: It is still not known whether overweight men have different patterns and socio-demographic correlates of self-reported physical activity (PA) compared with normal-weight men. Thus, this study examined the perceived PA patterns and associated socio-demographic factors among normal-weight and overweight Japanese men.

Methods: Data were analyzed for 1,420 men (aged 44.4 ± 8.3 years) who responded to an Internet-based cross-sectional survey relating to socio-demographic variables, BMI status, and a short version of the International Physical Activity Questionnaire. Mann-Whitney, chi-square, and binary logistic regression analyses were employed.

Results: Normal-weight men were significantly more likely to attain 150 minutes per week of moderate-to-vigorous PA than overweight men (26.6% vs. 21.3%; p=0.035), whereas there were no significant proportional differences in total PA and walking between the two BMI subgroups. With PA, a significant interaction was observed between BMI status and household income (p=0.004 for total PA; p=0.02 for walking). In the subgroup analyses, having a lower household income (odds ratio, 0.63; 95% confidence interval, 0.41-0.96) was negatively associated with attaining 150 minutes of walking per week among normal-weight men. No significant associations between household income and attaining 150 minutes per week of total PA and walking were found among overweight men.

Conclusions: The results revealed that patterns and socio-demographic correlates of self-reported PA in overweight men are different from those in normal-weight men. This finding suggests the necessity of developing specific strategies for PA intervention among overweight men. Socio-demographic correlates of PA may be more important for normal-weight than overweight men.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Attitude to Health*
  • Body Mass Index
  • Cross-Sectional Studies
  • Exercise / physiology
  • Exercise / psychology*
  • Humans
  • Internet
  • Japan / epidemiology
  • Leisure Activities / psychology
  • Logistic Models
  • Male
  • Middle Aged
  • Overweight* / epidemiology
  • Physical Exertion / physiology
  • Reproducibility of Results
  • Residence Characteristics / statistics & numerical data
  • Self Report
  • Social Class*
  • Socioeconomic Factors
  • Surveys and Questionnaires
  • Time Factors
  • Walking / physiology
  • Walking / psychology*