Cerebral and Muscle Oxygenation during Repeated Shuttle Run Sprints with Hypoventilation. - Université de Lille Accéder directement au contenu
Article Dans Une Revue International Journal of Sports Medicine Année : 2019

Cerebral and Muscle Oxygenation during Repeated Shuttle Run Sprints with Hypoventilation.

Résumé

Ten highly-trained Jiu-Jitsu fighters performed 2 repeated-sprint sessions, each including 2 sets of 8 x ~6 s back-and-forth running sprints on a tatami. One session was carried out with normal breathing (RSN) and the other with voluntary hypoventilation at low lung volume (RSH-VHL). Prefrontal and vastus lateralis muscle oxyhemoglobin ([O Hb]) and deoxyhemoglobin ([HHb]) were monitored by near-infrared spectroscopy. Arterial oxygen saturation (SpO ), heart rate (HR), gas exchange and maximal blood lactate concentration ([La] ) were also assessed. SpO was significantly lower in RSH-VHL than in RSN whereas there was no difference in HR. Muscle oxygenation was not different between conditions during the entire exercise. On the other hand, in RSH-VHL, cerebral oxygenation was significantly lower than in RSN (-6.1±5.4 vs-1.5±6.6 µm). Oxygen uptake was also higher during the recovery periods whereas [La] tended to be lower in RSH-VHL. The time of the sprints was not different between conditions. This study shows that repeated shuttle-run sprints with VHL has a limited impact on muscle deoxygenation but induces a greater fall in cerebral oxygenation compared with normal breathing conditions. Despite this phenomenon, performance is not impaired, probably because of a higher oxygen uptake during the recovery periods following sprints.
Fichier non déposé

Dates et versions

hal-04475267 , version 1 (23-02-2024)

Identifiants

Citer

Xavier Woorons, Olivier Dupuy, Patrick Mucci, Grégoire P. Millet, Aurelien Pichon. Cerebral and Muscle Oxygenation during Repeated Shuttle Run Sprints with Hypoventilation.. International Journal of Sports Medicine, 2019, International Journal of Sports Medicine, ⟨10.1055/a-0836-9011⟩. ⟨hal-04475267⟩
21 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More