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Physical Activity Dependence on Relative Temperature and Humidity Characteristics in a Young, Insufficiently Active
Daniel J Vecellio1, Constantino M Lagoa2, David E Conroy1,3
1Center for Healthy Aging, Pennsylvania State University, University Park, PA, USA.
Journal of Physical Activity & Health
|January 30, 2024
Summary
Physical activity (PA) is lower on humid days and higher on warm, dry days for young adults. This research uses weather types to better understand environmental impacts on exercise habits.
Area of Science:
- Environmental Health
- Exercise Science
- Public Health
Background:
- Physical activity (PA) is crucial for health, but environmental factors are complex to study.
- Previous research used absolute weather values, hindering cross-study comparisons.
- Ambient conditions like temperature and humidity significantly influence PA levels.
Purpose of the Study:
- To investigate the combined impact of temperature and humidity on PA in young adults.
- To utilize the Global Weather Type Classification for a more standardized approach.
- To provide guidance for promoting PA based on weather forecasts.
Main Methods:
- Secondary analysis of a behavioral intervention trial with 81 young adults.
- Data collected over 6 months using Fitbit Versa smartwatches and a smartphone tracking app.
- Mixed linear models used to analyze 8179 person-days of activity data.
Main Results:
- PA was significantly lower on humid days.
- PA was significantly higher on warm, dry days, though this finding was moderated by the pandemic declaration.
- Demographic factors did not influence the weather-PA relationship.
Conclusions:
- Findings offer a novel method for understanding weather's impact on PA.
- Results can inform strategies to encourage physical activity in various weather conditions.
- Future research should explore seasonal variations and mitigate confounding events like pandemics.
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