Institute of Landscape Architecture and Spatial Planning Norwegian University of Life Sciences Aas, Norway & Department of Sports and Active LifestyleHiHm, Elverum, Norway
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Can Promotion of Outdoor Activities Impact People’s Vitamin D Levels?
- Presented on Sept. 2013
Growing attention has lately been given to the importance of Vitamin D as a factor protecting people’s health. As an exploratory study, we investigated the relationship between physical activity, light level and individuals’ vitamin D status within an intervention promoting physical activity. Fourteen adults (age 49.2±8.0 yr.) underwent a short exercise-intervention (two exercise sessions within one week) either indoors or outdoors. Physical activity levels and light levels (Lux) were measured by ActiSleep+ (ActiSleep+, ActiGraph, Pensacola, US), and 25-OH-D concentration was measured in serum at three time-points. No significant differences between the groups during the intervention, although the outdoor-exercise group tended to improve while the indoor-exercise group tended to decrease the vitamin D status. Study of correlation (Pearson r) found positive associations between vitamin D levels and different parameters of physical activity, and also between vitamin D levels and Lux. These results support the importance of promoting outdoor physical activities in order to achieve and maintain high vitamin D levels.
- Giovanna Calogiuri 1
- Saija Mikkilä 2
- Andi Weydahl 2
Department for Sport Uit The Arctic University of Norway Alta, Norway
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