Related Experiment Video
Updated: Jun 4, 2026

Assessment of Physical Activity Intensity with Accelerometers and Oxygen Consumption
Published on: June 20, 2025
The association of physical activity and work-related characteristics among Latino adults
Guadalupe X Ayala1, Amy Gammelgard, James F Sallis
1Graduate School of Public Health, San Diego State University, San Diego, CA, USA.
Background:
Studies have examined the association between work-related characteristics and physical activity participation; however few studies include U.S. Latinos.
Methods:
Six hundred and seventy two Latino adults of San Diego County were randomly sampled and surveyed to assess their health behaviors in the fall of 2006. Analyses were conducted with 633 respondents with physical activity data (94% of sample), examining the extent to which job category and hours worked per week were associated with 4 domains of physical activity defined by MET-minutes per week using the long IPAQ.
Results:
Multivariate analysis of variance models were computed. After adjusting for covariates, occupational MET-minutes per week were associated with job category and hours worked per week, such that blue collar workers expended more MET-minutes per week than white collar or nonworkers, and those who worked 20 hours a week or less expended less occupational physical activity compared with those who worked more than 20 hours per week. In addition, nonworkers reported expending more household MET-minutes per week than blue collar or white collar workers.
Conclusions:
Efforts are needed to increase the physical activity levels of Mexican immigrants/Mexican-Americans, with interventions designed in consideration of the individual's work status.
Related Concept Videos
Lifestyle Factors and Health
Benefits of Physical Activity
Physical activity, whether through structured exercise or casual activities like walking, biking, or dancing, is a cornerstone of a...
Introduction to Stress and Lifestyle
Exercise and Cardiac Output
Sustained exercise increases the muscles' oxygen demand, which can be met...
Surveys
Exercise and Cardiovascular Response
Light to moderate physical activity initiates a series of interconnected responses in the body. The heart rate modestly increases in anticipation of the workout, followed by widespread vasodilation as oxygen consumption by skeletal muscles increases. This results in decreased peripheral resistance, increased capillary blood flow, and accelerated...
Models of Health Promotion and Illness Prevention II
The agent-host-environment model states that disease results from...
