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- Title
Assessment of Cardiorespiratory Fitness without Exercise in Elderly Men with Chronic Cardiovascular and Metabolic Diseases.
- Authors
Maranhão Neto, Geraldo A.; de Leon, Antonio P.; Lira, Vitor A.; V. Farinatti, Paulo T.
- Abstract
Low cardiorespiratory (CRF) is associated with health problems in elderly people, especially cardiovascular and metabolic disease. However, physical limitations in this population frequently preclude the application of aerobic tests. We developed a model to estimate CRF without aerobic testing in older men with chronic cardiovascular and metabolic diseases. Subjects aged from 60 to 91 years were randomly assigned into validation (n = 67) and cross-validation (n = 29) groups. A hierarchical linear regression model included age, self-reported fitness, and handgrip strength normalized to body weight (R2 = 0.79; SEE = 1.1 METs). The PRESS (predicted residual sum of squares) statistics revealed minimal shrinkage in relation to the original model and that predicted by the model and actual CRF correlated well in the cross-validation group (r = 0.85). The area under curve (AUC) values suggested a good accuracy of the model to detect disability in the validation (0.876, 95% CI: 0.793-0.959) and cross-validation groups (0.826, 95% CI: 0.677-0.975). Our findings suggest that CRF can be reliably estimated without exercise test in unhealthy elderly men.
- Subjects
CHI-squared test; CHRONIC diseases; CONFIDENCE intervals; STATISTICAL correlation; PHYSICAL fitness; REGRESSION analysis; RESEARCH funding; SCALES (Weighing instruments); T-test (Statistics); RECEIVER operating characteristic curves; DATA analysis software; DESCRIPTIVE statistics; DISEASE complications; OLD age
- Publication
Journal of Aging Research, 2012, p1
- ISSN
2090-2204
- Publication type
Article
- DOI
10.1155/2012/518045