Learn More
The net energy cost of running per unit of body mass and distance (Cr, ml O2·kg−1·km−1) was determined on ten amateur runners before and immediately after running 15, 32 or 42 km on an indoor track at a constant speed. The Cr was determined on a treadmill at the same speed and each run was performed twice. The average value of Cr, as determined before the(More)
BACKGROUND Although such data are available for young competitive athletes, the prevalence, characteristics, and outcome of sports-related sudden death have not been assessed previously in the general population. METHODS AND RESULTS A prospective and comprehensive national survey was performed throughout France from 2005 to 2010, involving subjects 10 to(More)
This study evaluates the Quantification de L'Activite Physique en Altitude chez les Enfants (QAPACE) supervised self-administered questionnaire reproducibility and validity on the estimation of the mean daily energy expenditure (DEE) on Bogotá's schoolchildren. The comprehension was assessed on 324 students, whereas the reproducibility was studied on a(More)
The aim of the study was to determine whether different programmes of exercise influence adoptive monophasic experimental auto-immune encephalomyelitis (adoptive EAE), a paralytic disease mediated by T-cells. Adoptive EAE was induced by the transfer of activated encephalitogenic T-lymphocytes into syngeneic recipients (Lewis rats, n = 85) and its(More)
Absolute (×103·mm−3) or relative (%) numbers of blood leucocyte types (monocytes, lymphocytes, neutrophils) and lymphocyte subsets (T11+, T4+, T8+, B1+, and NKH1+) reacting with specific monoclonal antibodies were determined at rest, immediately after maximal exercise on a treadmill, in six controls (C), and in six young cyclists before training (BT) and(More)
Blood lactate accumulation rate and oxygen consumption have been studied in six trained male runners, aged 20 to 30 years. Subjects ran on a treadmill at a rate representing 172±5% $$\dot V_{{\text{O}}_{{\text{2 max}}} }$$ for four 45 s sessions, separated by 9 min rest periods. Oxygen consumption was measured throughout. Blood lactate was determined in(More)
The aim of this study was a detailed examination of the effects of moderate exercise on T-cells in adult male Wistar rats. The T-cell populations were compared in sedentary rats (C, n = 5) and in rats trained for 4 weeks on a treadmill (30–60 min·day−1, 6 days·week−1, 20–30 m·min−1) and sacrificed at rest (Trest, n=5). In the T-rest rats, there were higher(More)
Twelve male and female subjects (eight trained, four untrained) exercised for 30 min on a treadmill at an intensity of maximal O2 consumption (% $$\dot V$$ O2max) 90.0%, SD 4.7 greater than the anaerobic threshold of 4 mmol ·1−1 (Than =83.6% $$\dot V$$ O2max, SD 8.9). Time-dependent changes in blood lactate concentration ([lab]) during exercise occurred in(More)
We studied the contractile, histological and biochemical characteristics of regenerating slow (soleus) muscles of aged rats and the effect of IGF-1 treatment on these parameters. Regenerating soleus muscles were studied 21 days after myotoxic injury. In senescent rats (24 month old), the in situ isometric maximal tetanic force (P0), resistance to fatigue(More)