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The aim of this study was to analyze the effects of recovery mode (active/passive) on time spent at high percentage of maximal oxygen uptake $${({V\hbox{O}}_{2{\rm max}})},$$ i.e. above 90% of $${{V\hbox{O}}_{2{\rm max}}\;(t{90}{V\hbox{O}}_{2{\rm max}})}$$ and above 95% of $${{V\hbox{O}}_{2{\rm max}}}\;(t95{{V\hbox{O}}_{2{\rm max}}})$$ during a single short(More)
The purpose of this study was to compare, during a 30s intermittent exercise (IE), the effects of exercise intensity on time spent above 90% $${\dot{\hbox{V}}\hbox{O}}_{{{\rm 2max}}} (t90\,{\dot{\hbox{V}}\hbox{O}}_{{{\rm 2max}}})$$ and time spent above 95% $${\dot{\hbox{V}}\hbox{O}}_{{{\rm 2max}}} (t95\,{\dot{\hbox{V}}\hbox{O}}_{{{\rm 2max}}})$$ in young(More)
The purpose of our study was to compare time to exhaustion (tlim) and time spent at a high level of oxygen uptake (V̇O2) during two high-intensity short intermittent exercises (30 s-30 s) realized with or without series. Eleven young endurance-trained athletes [16.6 (0.4) years] took part in three field tests until exhaustion: (1) a maximal graded test to(More)
The purpose of this study was to observe the effect of high intermittent exercise training on children’s heart rate variability (HRV). Thirty-eight children (age 9.6 ± 1.2 years) were divided into an intermittent (IT, n = 22) and a control group (CON, n = 16). At baseline and after a 7-week training period, HRV parameters, peak oxygen consumption $$(More)
In this study, we examined the effects of three recovery intensities on time spent at a high percentage of maximal oxygen uptake (t90[Vdot]O(2max)) during a short intermittent session. Eight endurance-trained male adolescents (16 +/- 1 years) performed four field tests until exhaustion: a graded test to determine maximal oxygen uptake ([Vdot]O(2max); 57.4(More)
The aim of this study was to compare tennis matches played on clay (CL) and resin (R) courts. Six matches were played (3 on CL courts and 3 on R courts) by 6 high-level players. Heart rate (HR) was monitored continuously while running time (4.66 m), and blood lactate concentration ([La]) were measured every 4 games. Mean duration of points and effective(More)
AIM To analyze breathing pattern and mechanical ventilatory constraints during incremental exercise in healthy and cystic fibrosis (CF) children. METHODS Thirteen healthy children and 6 children with cystic fibrosis volunteered to perform an incremental test on a treadmill. Exercise tidal flow/volume loops were plotted every minute within a maximal(More)
OBJECTIVE Superior global cardiac performance (ie stroke volume) is classically reported after training in children. Current knowledge of the impact of exercise training on myocardial relaxation, a major component of left ventricular (LV) filling and subsequently stroke volume, is, however, limited in the paediatric population. This study aimed to(More)
This study was designed to test the reproducibility of muscle oxygenation by NIRS in children during exercise. Twelve healthy non-obese and non-trained children performed one maximal graded test, and four 6-min constant load cycle exercises. Deoxy-hemoglobin (Hb/Mb- H+) data were averaged every 1, 5, 10, 20 and 30s. Hb/Mb- H+ data averaged every 5, 10, 20(More)
This study first aimed to compare critical power (CP) and anaerobic work capacity (AWC), to laboratory standard evaluation methods such as maximal oxygen uptake (VO(2)max) and maximal accumulated oxygen deficit (MAOD). Secondly, this study compared child and adult CP and AWC values. Subjects performed a maximal graded test to determine VO(2)max and maximal(More)