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Time-course effects of endurance training on fat oxidation in sedentary elderly people

MORIO, B ; MONTAURIER, C ; RITZ, P ; FELLMANN, N ; COUDERT, J ; BEAUFRERE, B ; VERMOREL, M

International Journal of Obesity, 1999-07, Vol.23 (7), p.706-714 [Periódico revisado por pares]

Basingstoke: Nature Publishing

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Título:
Time-course effects of endurance training on fat oxidation in sedentary elderly people
Autor: MORIO, B ; MONTAURIER, C ; RITZ, P ; FELLMANN, N ; COUDERT, J ; BEAUFRERE, B ; VERMOREL, M
Assuntos: Adipose Tissue - metabolism ; Aged ; Biological and medical sciences ; Exercise - physiology ; Fatty Acids, Nonesterified - blood ; Female ; Fundamental and applied biological sciences. Psychology ; Human health and pathology ; Humans ; Insulin - blood ; Intermediate and energetic metabolism ; Life Sciences ; Male ; Metabolisms and neurohumoral controls ; Middle Aged ; Nitrogen - urine ; Oxidation-Reduction ; Oxygen Consumption ; Physical Endurance - physiology ; Sleep - physiology ; Time Factors ; Vertebrates: anatomy and physiology, studies on body, several organs or systems ; Weight Loss
É parte de: International Journal of Obesity, 1999-07, Vol.23 (7), p.706-714
Descrição: To investigate alterations in whole body fat oxidation after 7 and 14 weeks of progressive endurance training in sedentary elderly subjects. Longitudinal, 14 weeks of progressive endurance training on a cycle ergometer (3 training sessions per week). Full sets of measurements were performed before, and after 7 and 14 weeks of training. 13 healthy sedentary subjects (5 men, 8 women) (age 62.8 +/- 2.3 y). 24 h indirect calorimetric measurements under standardised conditions: light-activity programme, fixed food composition, neutral daily energy balance. Body composition (by isotope dilution and skinfold thicknesses). Maximal oxygen consumption. Loss of 0.7 kg fat mass in the first 7 weeks of training and a further 2.4 kg of fat in the second 7 weeks. There was a transient increase in sleeping fat oxidation after 7 weeks of training (+26.1%), associated with transient increase in daily fat oxidation (+/- 11.9%), but fat oxidation then returned to baseline values in the second 7 weeks. There was a correlation between within-subject changes in sleeping fat oxidation after 7 weeks of training and variations in FFM (r = 0.62, P = 0.02) and maximal oxygen consumption (r = -0.56, P < 0.05). In sedentary elderly subjects, progressive endurance training was associated with a transient increase in sleeping fat oxidation and daily fat oxidation. In free-living conditions, possible changes in daily fat oxidation may have induced a negative fat balance, as judged by fat mass loss.
Editor: Basingstoke: Nature Publishing
Idioma: Inglês

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Time-course effects of endurance training on fat oxidation in sedentary elderly people

MORIO, B ; MONTAURIER, C ; RITZ, P ; FELLMANN, N ; COUDERT, J ; BEAUFRERE, B ; VERMOREL, M

Basingstoke: Nature Publishing

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