期刊
INTERNATIONAL JOURNAL OF BIPOLAR DISORDERS
卷 10, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1186/s40345-022-00272-6
关键词
Exercise; Psychiatric disorder; Mental health; Women; Men; Long-term effect
类别
资金
- Lund University
- Strategic Research Area MultiPark (Multidisciplinary Research in neurodegenerative diseases) at Lund University
- Swedish Alzheimer Foundation
- Swedish Brain Foundation
- Crafoord Foundation
- Swedish Dementia Association
- G and J Kock Foundation
- Olle Engkvist Foundation
- Swedish Medical Research Council
- Swedish Parkinson Foundation
- A.E. Berger Foundation
- Royal Physiographic Society
- Thurings Foundation
- Swedish mental health foundation
This study explores the association between participation in long-distance cross-country ski race and the risk of bipolar disorder diagnosis. It suggests that previous participation in the race is associated with a lower risk of newly diagnosed bipolar disorder, while the impact of exercise intensity varies based on sex.
Background Physical activity has been proposed to be beneficial for the symptomatic control of bipolar disorder, but the duration of the effects, sex-specific mechanisms, and impact of exercise intensity are not known. Method With an observational study design, we followed skiers and age and sex-matched non-skiers from the general population to investigate if participation in a long-distance cross-country ski race (Vasaloppet) was associated with a lower risk of getting diagnosed with bipolar disorder. Using the Swedish population and patient registries, skiers in Vasaloppet and age and sex-matched non-skiers from the general population were analyzed for any diagnosis of bipolar disorder after participation in the race. Additionally, we used finishing time of the ski race as a proxy for intensity levels to investigate if exercise intensity impacts the risk of bipolar disorder among the physically active skiers. Results Previous participation in a long distance ski race (n = 197,685, median age 36 years, 38% women) was associated with a lower incidence of newly diagnosed bipolar compared to an age and sex-matched general population (n = 197,684) during the up to 21 years follow-up (adjusted hazard ratio, HR = 0.48). The finishing time of the race did not significantly impact the risk of bipolar disorder in men. Among women, high performance (measured as the finishing time to complete the race, a proxy for higher exercise dose) was associated with an increased risk of bipolar disorder compared to slower skiing women (HR = 2.07). Conclusions Our results confirm that a physically active lifestyle is associated with a lower risk of developing bipolar disorder. Yet, to elucidate the direction of causality in this relationship requires complementary study designs. And the influence of physical performance level on the risk of bipolar disorder warrants further examinations among women.
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