Influence of Hypoxic Interval Training and Hyperoxic Recovery on Muscle Activation and Oxygenation in Connection With Double-Poling Exercise

Zinner, Christoph; Hauser, Anna; Born, Dennis-Peter; Wehrlin, Jon Peter; Holmberg, Hans-Christer; Sperlich, Billy (2015). Influence of Hypoxic Interval Training and Hyperoxic Recovery on Muscle Activation and Oxygenation in Connection With Double-Poling Exercise PLoS One, 10(10), pp. 1-12. Public Library of Science (PLoS) 10.1371/journal.pone.0140616

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Here, we evaluated the influence of breathing oxygen at different partial pressures during recovery from exercise on performance at sea-level and a simulated altitude of 1800 m, as reflected in activation of different upper body muscles, and oxygenation of the m. triceps brachii. Ten well-trained, male endurance athletes (25.3±4.1 yrs; 179.2±4.5 cm; 74.2±3.4 kg) performed four test trials, each involving three 3-min sessions on a double-poling ergometer with 3-min intervals of recovery. One trial was conducted entirely under normoxic (No) and another under hypoxic conditions (Ho; FiO2 = 0.165). In the third and fourth trials, the exercise was performed in normoxia and hypoxia, respectively, with hyperoxic recovery (HOX; FiO2 = 1.00) in both cases. Arterial hemoglobin saturation was higher under the two HOX conditions than without HOX (p<0.05). Integrated muscle electrical activity was not influenced by the oxygen content (best d = 0.51). Furthermore, the only difference in tissue saturation index measured via near-infrared spectroscopy observed was between the recovery periods during the NoNo and HoHOX interventions (P<0.05, d = 0.93). In the case of HoHo the athletes’ Pmean declined from the first to the third interval (P < 0.05), whereas Pmean was unaltered under the HoHOX, NoHOX and NoNo conditions. We conclude that the less pronounced decline in Pmean during 3 x 3-min double-poling sprints in normoxia and hypoxia with hyperoxic recovery is not related to changes in muscle activity or oxygenation. Moreover, we conclude that hyperoxia (FiO2 = 1.00) used in conjunction with hypoxic or normoxic work intervals may serve as an effective aid when inhaled during the subsequent recovery intervals.

Item Type:	Journal Article (Original Article)
Division/Institute:	Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Sportphysiologie Ausdauer
Name:	Zinner, Christoph; Hauser, Anna; Born, Dennis-Peter; Wehrlin, Jon Peter; Holmberg, Hans-Christer and Sperlich, Billy
ISSN:	1932-6203
Publisher:	Public Library of Science (PLoS)
Language:	English
Submitter:	Service Account
Date Deposited:	14 Dec 2020 16:18
Last Modified:	03 Nov 2023 09:56
Publisher DOI:	10.1371/journal.pone.0140616
Related URLs:	Publication
PubMed ID:	26468885
Uncontrolled Keywords:	Adult Altitude Cell hypoxia Hemoglobinometry Humans Male Muscle, skeletal physiology Oxygen consumption Partial pressure Physical endurance physiology Respiration Spectroscopy Near-infrared Young adult
ARBOR DOI:	10.24451/arbor.10911
URI:	https://arbor.bfh.ch/id/eprint/10911