Intensity of physical activity in the energy expenditure of older adults.
J Aging Phys Act
; 22(4): 571-7, 2014 Oct.
Article
en En
| MEDLINE
| ID: mdl-24306390
ABSTRACT
This study examined the intensity of activity contributing to physical activity energy expenditure in older adults. In 57 men and women aged ≥ 65, total energy expenditure (TEE) was measured using doubly labeled water and resting metabolic rate was measured using indirect calorimetry to calculate a physical activity index (PAI). Sedentary time and physical activity of light and moderate to vigorous (mod/vig) intensity was measured using an accelerometer. The subjects were 75 ± 7 yrs (mean ± SD) of age and 79% female. Subjects spent 66 ± 8, 25 ± 5, and 9 ± 4% of monitor wear time in sedentary, light, and mod/vig activity per day, respectively. In a mixture regression model, both light (ß = 29.6 [15.6-43.6, 95% CI]), p < .001) and mod/vig intensity activity (ß = 28.7 [7.4-50.0, 95% CI]), p = .01) were strongly associated with PAI, suggesting that both light and mod/vig intensity activities are major determinants of their physical activity energy expenditure.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Envejecimiento
/
Metabolismo Energético
/
Actividad Motora
Tipo de estudio:
Health_economic_evaluation
Límite:
Aged
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Aged80
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Female
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Humans
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Male
Idioma:
En
Revista:
J Aging Phys Act
Año:
2014
Tipo del documento:
Article