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dc.contributor.authorÁlvarez-Herms, Jesús
dc.contributor.authorJulià-Sánchez, Sonia
dc.contributor.authorCorbi Soler, Francesc
dc.contributor.authorOdriozola-Martínez, Adrian
dc.contributor.authorBurtscher, Martin
dc.date.accessioned2019-02-27T10:04:47Z
dc.date.available2019-02-27T10:04:47Z
dc.date.issued2019
dc.identifier.issn1664-1078
dc.identifier.urihttp://hdl.handle.net/10459.1/65805
dc.description.abstractRespiratory/inspiratory muscle training (RMT/IMT) has been proposed to improve the endurance performance of athletes in normoxia. In recent years, due to the increased use of hypoxic training method among athletes, the RMT applicability has also been tested as a method to minimize adverse effects since hyperventilation may cause respiratory muscle fatigue during prolonged exercise in hypoxia. We performed a review in order to determine factors potentially affecting the change in endurance performance in hypoxia after RMT in healthy subjects. A comprehensive search was done in the electronic databases MEDLINE and Google Scholar including keywords: “RMT/IMT,” and/or “endurance performance,” and/or “altitude” and/or “hypoxia.” Seven appropriate studies were found until April 2018. Analysis of the studies showed that two RMT methods were used in the protocols: respiratory muscle endurance (RME) (isocapnic hyperpnea:commonly 10–30′,3–5 d/week)inthreeof the sevenstudies,and respiratory muscle strength (RMS) (Powerbreathe device: commonly 2 × 30 reps at 50% MIP (maximalinspiratory pressure), 5–7 d/week) in the remaining four studies. The duration of theprotocolsrangedfrom4to8weeks,anditwasfoundinsynthesisthatduringexercise in hypoxia, RMT promoted (1) reduced respiratory muscle fatigue, (2) delayed respiratory muscle metaboreflex activation, (3) better maintenance of SaO2 and blood flow to locomotor muscles. In general, no increases of maximal oxygen uptake (VO2max) were described. Ventilatory function improvements (maximal inspiratory pressure) achieved by using RMT fostered the capacity to adapt to hypoxia and minimized the impact of respiratory stress during the acclimatization stage in comparison with placebo/sham. In conclusion, RMT was found to elicit general positive effects mainly on respiratory efficiency and breathing patterns, lower dyspneic perceptions and improved physical performance in conditions of hypoxia. Thus, this method is recommended to be used as a pre-exposure tool for strengthening respiratory muscles and minimizing the adverse effects caused by hypoxia related hyperventilation. Future studies will assess these effects in elite athletes.ca_ES
dc.language.isospaca_ES
dc.publisherFrontiers Mediaca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.3389/fphys.2018.01970ca_ES
dc.relation.ispartofFrontiers in Psychology, 2019, vol. 9, núm. 1970, p. 1-11ca_ES
dc.rightscc-by (c) Jesús Álvarez et al., 2019ca_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectRespiratory musclesca_ES
dc.subjectPhysical performanceca_ES
dc.subjectTrainingca_ES
dc.subjectMuscle enduranceca_ES
dc.titlePutative Role of Respiratory Muscle Training to Improve Endurance Performance in Hypoxia: A Reviewca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.3389/fphys.2018.01970


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cc-by (c) Jesús Álvarez et al., 2019
Except where otherwise noted, this item's license is described as cc-by (c) Jesús Álvarez et al., 2019