Examining placebo effects after a 3-week repeated-sprint training program under hypoxic conditions in recreationally trained subjects: a randomized controlled trial.
Repeated-sprint training in hypoxia (RSH) has been suggested to significantly enhance anaerobic performance. However, the widespread belief in the benefits of altitude training raises questions about potential placebo effect. The aim of this study was thus to investigate the physiological and placeb...
| Published in: | Applied Physiology, Nutrition & Metabolism Vol. 50; pp. 1 - 13 |
|---|---|
| Main Authors: | , , , , , |
| Format: | pictorial research tables/charts randomized controlled trial Journal Article |
| Published: |
Canadian Science Publishing
8/15/2025
|
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=187383703&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 187383703 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 17155312 22EG jtl: Applied Physiology, Nutrition & Metabolism issn: 17155312 maglogo: N pubinfo: dt: 8/15/2025 vid: 50 pid: 64076 pub: Canadian Science Publishing place: Ottawa, Ontario artinfo: ui: 187383703 187383703 187383703 10.1139/apnm-2024-0468 187383703 ppf: 1 ppct: 12 formats: tig: atl: Examining placebo effects after a 3-week repeated-sprint training program under hypoxic conditions in recreationally trained subjects: a randomized controlled trial. aug: au: Gutknecht, Alexandre P. Gonzalez-Figueres, Martin Belda, Guilhem Vergotte, Grégoire Perrey, Stéphane Favier, François B. affil: EuroMov Digital Health in Motion, University of Montpellier, IMT Mines Ales, Montpellier, France sug: subj: Training Effect (Physiology) Sprinting Anoxia Athletic Performance Evaluation Athletes Psychosocial Factors Recreation Human Randomized Controlled Trials Random Assignment Placebos Cycling Biochemical Phenomena Exercise Descriptive Statistics Comparative Studies ab: Repeated-sprint training in hypoxia (RSH) has been suggested to significantly enhance anaerobic performance. However, the widespread belief in the benefits of altitude training raises questions about potential placebo effect. The aim of this study was thus to investigate the physiological and placebo effects of normobaric hypoxia combined with repeated-sprint training on performance. Twenty-nine moderately trained participants were randomly assigned to normoxia (repeated-sprint in normoxia (RSN)), placebo (repeated-sprint in normoxia with placebo setup (RSN-P)), or hypoxia (RSH) groups. Participants in RSN-P group were led to believe they were training at simulated altitude (between 2500 and 3500 m), while participants in the RSN and RSH groups knew they were training at sea level and at altitude, respectively. Repeated-sprint training involved six cycling sessions over 3 weeks, consisting of three sets of 8 × 6 s sprint with 24 s of recovery. There was no difference in the estimation of the altitude level to which participants from the RSN-P and RSH groups thought they had been exposed. There was a main significant effect of training on mean power output during Wingate (+7.9%; p < 0.001; ηp² = 0.47) and repeated-sprint ability tests (+7.7%; p < 0.001; ηp² = 0.55). However, contrary to our hypotheses, the enhancement among the three groups did not differ. The lack of greater improvement in the RSH group compared to the other groups raises questions about the added value of hypoxia in these conditions. In conclusion, neither real nor perceived hypoxia enhanced training adaptations following repeated-sprint sessions. pubtype: Academic Journal doctype: pictorial research tables/charts randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|