Influence of recovery intensity on time spent at maximal oxygen uptake during an intermittent session in young,endurance-trained athletes |
| |
| Authors: | Delphine Thevenet Erwan Leclair Magaly Tardieu-Berger Serge Berthoin Sophie Regueme Jacques Prioux |
| |
| Institution: | 1. Laboratoire d'Etudes de la Motricité Humaine (EA 3608), Faculté des Sciences du Sport et de l'Education Physique , Ronchin;2. Laboratoire “Motricité, Interactions, Performance” (JE 2438), UFR STAPS , Nantesthevenet.d@gmail.com;4. Laboratoire “Motricité, Interactions, Performance” (JE 2438), UFR STAPS , Nantes;5. Département STAPS , UFR CISM, Equipe de Modélisation des Activités Sportives, Le Bourget du Lac ,;6. Laboratoire de Physiologie et de Biomécanique de l'Exercise Musculaire (EA 1274), Normale Supérieure (ENS , Rennes, France |
| |
| Abstract: | Abstract In this study, we examined the effects of three recovery intensities on time spent at a high percentage of maximal oxygen uptake (t90Vdot]O2max) 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]O2max; 57.4 ± 6.1 ml · min?1 · kg?1) and maximal aerobic velocity (17.9 ± 0.4 km · h?1), and three intermittent exercises consisting of repeat 30-s runs at 105% of maximal aerobic velocity alternating with 30 s active recovery at 50% (IE50), 67% (IE67), and 84% (IE84) of maximal aerobic velocity. In absolute values, mean t90Vdot]O2max was not significantly different between IE50 and IE67, but both values were significantly longer compared with IE84. When expressed in relative values (as a percentage of time to exhaustion), mean t90Vdot]O2max was significantly higher during IE67 than during IE50. Our results show that both 50% and 67% of maximal aerobic velocity of active recovery induced extensive solicitation of the cardiorespiratory system. Our results suggest that the choice of recovery intensity depends on the exercise objective. |
| |
| Keywords: | Intermittent exercise recovery intensity time spent at maximal oxygen uptake time to exhaustion young athletes |
|
|
