Physical Activity Level and Physical Functionality in Nonagenarians Compared to Individuals Aged 60-74 Years
| Autor: | Ryan D. Russell, Jennifer M. Fabre, James P. DeLany, Christina M. King, Eric Ravussin, Madlyn I. Frisard, Robert H. Wood |
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| Rok vydání: | 2007 |
| Předmět: |
Male
Gerontology Aging Activities of daily living Physical fitness Doubly labeled water Motor Activity Article Activities of Daily Living Humans Medicine Aged Aged 80 and over business.industry VO2 max Middle Aged Louisiana Physical activity level Test (assessment) Basal metabolic rate Body Composition Female Basal Metabolism Geriatrics and Gerontology Specific dynamic action Energy Metabolism business |
| Zdroj: | The Journals of Gerontology Series A: Biological Sciences and Medical Sciences. 62:783-788 |
| ISSN: | 1758-535X 1079-5006 |
| DOI: | 10.1093/gerona/62.7.783 |
| Popis: | Functional dependence and the risks of disability increase with age. In 2003, more than one third of the older population aged > 65 years and 64% of individuals aged 85 years or older reported limitations in activities of daily life (1). The loss of independence is thought to be partially due to a decrease in physical activity; however, accurate measurements of physical activity are challenging in large populations (2,3). More importantly, the assessment of functionality in older, especially very old individuals (≥90 years) may provide more specific information on the severity of impairment as well as steps for the prevention and treatment of age-related disability. One of the primary goals of gerontology research is the maintenance of health and independence in older adults, both of which are influenced by an individual’s physical activity level (PAL) (4,5). Doubly labeled water (DLW) is considered the reference method for the measurement of total energy expenditure (TEE) under free-living conditions (6). DLW studies not only allow the calculation of activity energy expenditure (AEE) by difference between TEE, the sum of resting metabolic rate (RMR), and the thermic effect of food (TEF), but also provide an objective measure of physical activity over periods of 1–2 weeks. While physical activity level is an important determinant of an individual’s health; it may be more important to know an elderly individual’s functional status and whether it is related to the actual current level of physical activity. Tests of physical function in older individuals have gained popularity as alternatives to traditional laboratory measures of physical fitness (7). These tests have a number of advantages because they evaluate the ability to perform activities of daily living, provide more information on functional impairment, are less susceptible to floor and ceiling effects, and are applicable to a wider range of age and fitness levels than are more traditional fitness tests (7–9). The Reduced Continuous Scale-Physical Function Performance Test (CS-PFP10) is an adaptation of the full CS-PFP designed by Cress and colleagues (9) and is used in several physical domains and applied to a broad spectrum of abilities. The test has been validated against other measures of physical fitness including maximal oxygen consumption and measures of upper and lower body strength (9). However, whether the CS-PFP10 physical functionality score is associated with the level of physical activity in free-living conditions is currently unknown. Therefore, the purpose of this study was to examine if there is a relationship in older individuals between physical functionality assessed by the CS-PFP10 and PAL estimated by DLW and RMR. A secondary aim was to examine whether nonagenarians were less functionally independent than aged (60- to 74-year-old) individuals and whether this dependence was related to a reduced level of physical activity. |
| Databáze: | OpenAIRE |
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