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Published on: March 7, 2019
Leisure-time physical activity and nutrition: a twin study
Mirva Rintala1, Arja Lyytikäinen, Tuija Leskinen
1Department of Health Sciences, University of Jyväskylä, PO Box 35(LL), FIN-40014, Finland. mirva.l.a.rintala@jyu.fi
Long-term physical activity in twins was linked to eating more and better self-regulation of appetite. Habitual exercise may aid in maintaining healthy body composition, suggesting combined dietary and activity advice is crucial.
Area of Science:
- Exercise Physiology
- Nutritional Science
- Behavioral Medicine
Background:
- Understanding the long-term interplay between physical activity and eating behaviors is crucial for public health.
- Twin studies offer a unique model to disentangle genetic and environmental influences on these behaviors.
Purpose of the Study:
- To investigate the association between sustained leisure-time physical activity and specific eating behaviors.
- To analyze differences in eating patterns between physically active and inactive individuals within twin pairs discordant for physical activity over 30 years.
Main Methods:
- Utilized a co-twin control design with cross-sectional data collection.
- Employed questionnaires on eating habits and 5-day food diaries.
- Analyzed differences in eating behaviors between physically active and inactive co-twins using pairwise tests.
Main Results:
- Physically active co-twins reported eating easier according to need, while inactive co-twins exhibited more overeating/restrictive eating.
- Active individuals consumed more energy, vitamin C, water, legumes, nuts, and sweets, but less meat.
- Avoiding calories was more prevalent in the physically active group.
Conclusions:
- Habitual physical activity appears to facilitate eating according to need and maintaining healthy body composition.
- While physically active individuals eat more, their diet is not necessarily healthier.
- Integrated dietary and physical activity counseling is recommended for health promotion.
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