Por favor, use este identificador para citar o enlazar este ítem:
https://www.arca.fiocruz.br/handle/icict/37107
Tipo
ArtículoDerechos de autor
Acceso abierto
Fecha del embargo
2020-11-18
Colecciones
- ENSP - Artigos de Periódicos [2334]
- INI - Artigos de Periódicos [3460]
Metadatos
Mostrar el registro completo del ítem
ABSOLUTE AND RELATIVE ENERGY COSTS OF WALKING IN A BRAZILIAN ADULT PROBABILITY SAMPLE
Physical activity
Adult
Public health
Energy expenditure
Basal metabolism
Autor
Afiliación
Fluminense Federal University. Department of Social Nutrition. Nutritional and Functional Research Laboratory. Niterói, RJ, Brazil / Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sergio Arouca. Rio de Janeiro, RJ, Brasil.
Fluminense Federal University. Department of Social Nutrition. Nutritional and Functional Research Laboratory. Niterói, RJ, Brazil.
Fluminense Federal University. Department of Social Nutrition. Nutritional and Functional Research Laboratory. Niterói, RJ, Brazil.
Brazilian Institute of Geography and Statistics. National School of Statistical Sciences. Rio de Janeiro, RJ, Brazil / Fundação Oswaldo Cruz. Instituto de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Centers for Disease Control and Prevention. Division of Diabetes Translation. Atlanta, GA, USA.
Fluminense Federal University. Department of Social Nutrition. Nutritional and Functional Research Laboratory. Niterói, RJ, Brazil.
Fluminense Federal University. Department of Social Nutrition. Nutritional and Functional Research Laboratory. Niterói, RJ, Brazil.
Brazilian Institute of Geography and Statistics. National School of Statistical Sciences. Rio de Janeiro, RJ, Brazil / Fundação Oswaldo Cruz. Instituto de Pesquisa Clínica Evandro Chagas. Rio de Janeiro, RJ, Brasil.
Centers for Disease Control and Prevention. Division of Diabetes Translation. Atlanta, GA, USA.
Resumen en ingles
Background: Walking is commonly recommended for enhancing energy expenditure (EE), a basic principle in weight management, and cardiorespiratory fitness. However, walking EE varies with characteristics of a given population, especially by sex and age. Purpose: The study’s purpose was to measure EE of walking as influenced by physical and physiological characteristics of a sample of adults (≥20 yr) living in Niterói, Rio de Janeiro, Brazil. Methods: Walking EE and HR were measured during a submaximal multistage treadmill test. The test stages lasted for 3 min each and started at a speed of 1.11 m.s-1 and a grade of 0%. In the second stage, the grade was maintained at 0%, but the speed was increased to 1.56 m.s-1 and maintained at this speed but with grade raised by 2.5% at each stage until 10% at stage 6. We measured resting oxygen consumption (METm) before the test with the participants sitting quietly. Results: METm (mL O2. kg-1.min-1, mean +/- SE) was lower both in women (2.85 +/- 0.03) and in men (2.97 +/- 0.04) by almost 19% and 15%, respectively, compared with the conventionally estimated MET (METe) of 3.5 mL O2.kg-1.min-1 . Walking EE for any given speed and grade had an absolute intensity, expressed as multiples of METm or METe, that was practically equal between sexes and age groups, but it incurred higher individual physiological demand or relative intensity for women and older adults. Conclusions: Resting EE reflected by using METe is overestimated in the adult population of Nitero´i. Prescription of activities to counteract the existing worldwide obesity epidemic should be ideally based on individual physiological information, especially among women and older individuals.
Palabras clave en ingles
WalkingPhysical activity
Adult
Public health
Energy expenditure
Basal metabolism
Compartir