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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Chasman, Daniel I. Cook, Nancy R. Rimm, Eric B. Chomistek, Andrea K. Lee, I-Min |
| Description | Country affiliation: United States Author Affiliation: Chomistek AK ( Department of Nutrition, Harvard School of Public Health, Boston, MA 02115, USA. akaye@hsph.harvard.edu) |
| Abstract | PURPOSE: Both physical activity and physical fitness are associated with decreased coronary heart disease (CHD) risk. Our objective was to determine whether genes associated with physical fitness modify the association between physical activity and CHD. METHODS: We conducted a prospective cohort study among 23,016 initially healthy women in the Women's Genome Health Study. Leisure time physical activity was reported at entry and during follow-up. A total of 58 single nucleotide polymorphisms associated with physical fitness were identified from published literature and summed to create four separate genetic scores related to phenotypes of endurance, muscle strength, VË O2max, and overall fitness. RESULTS: During a median of 14.4 yr, 320 incident CHD events occurred. Increased physical activity was associated with lower CHD risk in multivariable-adjusted models (P = 0.0008). Independent of physical activity, only muscle strength genetic score was inversely associated with CHD risk (P = 0.05). There was no evidence that the inverse relation between physical activity and CHD was modified by any of the genetic scores for physical fitness. For overall fitness genetic score, the hazard ratio (HR) per 500 kcal·wk of physical activity was 0.85 (95% confidence interval [CI] = 0.72-1.00) in the highest quartile of genetic score and 0.79 (95% CI = 0.67-0.92) in the lowest quartile (P, interaction = 0.50). For VË O2max genetic score, the HR was 0.86 (95% CI = 0.72-1.02) and 0.84 (95% CI = 0.72-0.98), respectively (P, interaction = 0.59). CONCLUSIONS: In this large prospective cohort of women, genes associated with physical fitness did not modify the inverse association between physical activity and CHD risk. |
| ISSN | 01959131 |
| e-ISSN | 15300315 |
| DOI | 10.1249/MSS.0b013e3182784e9f |
| Journal | Medicine & Science in Sports & Exercise |
| Issue Number | 4 |
| Volume Number | 45 |
| Language | English |
| Publisher | Lippincott Williams & Wilkins (on behalf of the American College of Sports Medicine) |
| Publisher Date | 2013-04-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Coronary Disease Genetics Physiology Physical Fitness Polymorphism, Single Nucleotide Risk Reduction Behavior Confidence Intervals Epidemiology Models, Statistical Muscle Strength Oxygen Consumption Physical Endurance Prospective Studies Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't Discipline Sports Science |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
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