Respiratory and leg muscles perceived exertion during exercise at altitude
We compared the rate of perceived exertion for respiratory (RPE,resp) and leg (RPE,legs) muscles, using a 10-point Borg scale, to their specific power outputs in 10 healthy male subjects during incremental cycle exercise at sea level (SL) and high altitude (HA, 4559 m). Respiratory power output was calculated from breath-by-breath esophageal pressure and chest wall volume changes. At HA ventilation was increased at any leg power output by ? 54%. However, for any given ventilation, breathing pattern was unchanged in terms of tidal volume, respiratory rate and operational volumes of the different chest wall compartments. RPE,resp scaled uniquely with total respiratory power output, irrespectively of SL or HA, while RPE,legs for any leg power output was exacerbated at HA. With increasing respective power outputs, the rate of change of RPE,resp exponentially decreased, while that of RPE,legs increased. We conclude that RPE,resp uniquely relates to respiratory power output, while RPE,legs varies depending on muscle metabolic conditions.
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Citation proposal
Andrea ALIVERTI (TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano) - Bengt Kayser (Institute of Movement Sciences and Sports Medicine, Faculty of medicine, University of Geneva,) - Antonella Lo Mauro (TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano) - Pasquale Pompilio (TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano) - Raffaele Dellacà (TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano) - Luigi Biasco (Division of Cardiology, San Giovanni Battista Hospital, University of Turin) - L.Cavalleri (Anaesthesia and Intensive Care-Galliera Hospital Genoa) - Luca Pomidori (Department of Biomedical sciences and advanced therapies, University of Ferrara) - Annalisa Cogo (Biomedical Research Centre applied to sport, University of Ferrara) - R. Pellegrino (Allergy and Respiratory Physiopathology, S. Croce and Carle Hospital) - Giuseppe Miserocchi (Department of Experimental Medicine, the University of Milano-Bicocca) (2011) . Respiratory and leg muscles perceived exertion during exercise at altitude. Elsevier Science Publishing Company https://geoportal.mountaingenius.org/geonetwork/srv/api/records/94615bfc-a136-482e-9a9d-77bd07c5cb2a |
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- respiratory muscles , Respiratory power , altitude , exercise
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- 2011-03-22T00:00:00
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“Respiratory and leg muscles perceived exertion during exercise at altitude”
Aliverti A, Kayser B, Mauro AL, Quaranta M, Pompilio P, Dellacà RL, Ora J, Biasco L, Cavalleri L, Pomidori L, Cogo A, Pellegrino R, Miserocchi G.
Respir Physiol Neurobiol. 2011 Jul 31;177(2):162-8. Epub 2011 Mar 22.
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- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- Institute of Movement Sciences and Sports Medicine, Faculty of medicine, University of Geneva,
- bengt.kayser@unige.ch
- Organisation name
- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- Division of Cardiology, San Giovanni Battista Hospital, University of Turin
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- Anaesthesia and Intensive Care-Galliera Hospital Genoa
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- Department of Biomedical sciences and advanced therapies, University of Ferrara
- luca.pomidori@unife.it
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- Biomedical Research Centre applied to sport, University of Ferrara
- annalisa.cogo@unife.it
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- Allergy and Respiratory Physiopathology, S. Croce and Carle Hospital
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- Department of Experimental Medicine, the University of Milano-Bicocca
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- Elsevier Science Publishing Company
- nlinfo@sciencedirect.com
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- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- Institute of Movement Sciences and Sports Medicine, Faculty of medicine, University of Geneva,
- bengt.kayser@unige.ch
- Organisation name
- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
- Organisation name
- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
- Organisation name
- TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano
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- Division of Cardiology, San Giovanni Battista Hospital, University of Turin
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- Anaesthesia and Intensive Care-Galliera Hospital Genoa
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- Department of Biomedical sciences and advanced therapies, University of Ferrara
- luca.pomidori@unife.it
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- Biomedical Research Centre applied to sport, University of Ferrara
- annalisa.cogo@unife.it
- Organisation name
- Allergy and Respiratory Physiopathology, S. Croce and Carle Hospital
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- Department of Experimental Medicine, the University of Milano-Bicocca
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- Elsevier Science Publishing Company
- nlinfo@sciencedirect.com
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