To investigate alterations in whole body fat oxidation after 7 and 14 weeks of progressive endura... more 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.
To investigate alterations in whole body fat oxidation after 7 and 14 weeks of progressive endura... more 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.
We investigated the strength of the association between oxidative stress, hypoxia inducible facto... more We investigated the strength of the association between oxidative stress, hypoxia inducible factor 1 (HIF-1α) and acute hypoxic ventilatory response (AHVR) after hypoxic training in elite runners.Six elite runners were submitted to 18-day of “living high–training low” (LHTL) and six performed the same training in normoxia. AHVR was measured during an acute hypoxic test before and after training. Plasma levels
To investigate alterations in whole body fat oxidation after 7 and 14 weeks of progressive endura... more 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.
To investigate alterations in whole body fat oxidation after 7 and 14 weeks of progressive endura... more 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.
We investigated the strength of the association between oxidative stress, hypoxia inducible facto... more We investigated the strength of the association between oxidative stress, hypoxia inducible factor 1 (HIF-1α) and acute hypoxic ventilatory response (AHVR) after hypoxic training in elite runners.Six elite runners were submitted to 18-day of “living high–training low” (LHTL) and six performed the same training in normoxia. AHVR was measured during an acute hypoxic test before and after training. Plasma levels
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Papers by Jean Coudert