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Nonexercise Cardiorespiratory Fitness and Mortality in Older Adults.
MedLine Citation:
PMID:  25003774     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
INTRODUCTION: High cardiorespiratory fitness (CRF) is strongly associated with longer life among older adults. CRF can be assessed by exercise-based methods, which are not feasible in most clinical settings. Thus, non-exercise algorithms to estimate CRF have been developed, but whether they predict mortality in older adults is uncertain.
METHODS: A cohort of 1470 men and 1460 women, representative of the Spanish population aged ≥60 years, was established in 2000/2001 and followed-up prospectively through 2011. At baseline, non-exercise CRF was estimated with the sex-specific algorithms developed by Jackson et al. Analyses were performed with Cox regression and adjusted for the main confounders.
RESULTS: During an average follow-up of 9.4-years, 570 (38.8%) deaths occurred in men, and 295 (20.2%) in women. Among men, no association was observed between non-exercise CRF and all-cause mortality. Compared to women in the lowest quartile of CRF, the hazard ratio (95% confidence interval) for all cause-death was 0.81 (0.62-1.06) in the second quartile, 0.68 (0.48-0.95) in the third quartile, and 0.56 (0.36-0.87) in the highest quartile (P for trend=0.004). Results held regardless of age, body mass index, waist circumference, heart rate, subjective health, functional limitations, and disease status.
CONCLUSIONS: Higher non-exercise CRF was related to lower risk of death in older women but not in men. Since previous research does not support a clear sex-specific association, further research is required to assess if non-exercise CRF predicts mortality in older adults or new algorithms should be developed for this population with special attention to older men.
Authors:
David Martinez-Gomez; Pilar Guallar-Castillón; Pedro C Hallal; Esther Lopez-Garcia; Fernando Rodríguez-Artalejo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2014-7-7
Journal Detail:
Title:  Medicine and science in sports and exercise     Volume:  -     ISSN:  1530-0315     ISO Abbreviation:  Med Sci Sports Exerc     Publication Date:  2014 Jul 
Date Detail:
Created Date:  2014-7-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8005433     Medline TA:  Med Sci Sports Exerc     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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