94615bfc-a136-482e-9a9d-77bd07c5cb2a eng Ev-K2-CNR +39 035 3230511 +39 035 3230551 Via San Bernardino 145 Bergamo BG 24126 Italy metadata@evk2cnr.org http://www.evk2cnr.org/ 2012-02-20T16:53:39 ISO 19115:2003/19139 1.0 Respiratory and leg muscles perceived exertion during exercise at altitude 2011-03-22T00:00:00 Respiratory Physiology & Neurobiology,Volume 177, Issue 2 162-168 Respiratory Physiology & Neurobiology, Volume 177, Issue 2, 31 July 2011, Pages 162-168 1569-9048 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. Andrea ALIVERTI TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano +39 0223999006 v.Colombo, 40 Milano MI 20133 Italy andrea.aliverti@polimi.it http://www.tbmlab.polimi.it Bengt Kayser Institute of Movement Sciences and Sports Medicine, Faculty of medicine, University of Geneva, Geneva Switzerland bengt.kayser@unige.ch http://ismms.unige.ch/ Antonella Lo Mauro TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano +39 0223999025 v.Colombo, 40 Milano MI 20133 Italy antonella.lomauro@biomed.polimi.it http://www.tbmlab.polimi.it/ Pasquale Pompilio TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano +39 0223999024 v.Colombo, 40 Milano MI 20133 Italy Pasquale.pompilio@polimi.it http://www.tbmlab.polimi.it Raffaele Dellacà TBMLab - Laboratory of Biomedical Technologies Politecnico di Milano +39 0223999005 v.Colombo, 40 Milano MI 20133 Italy raffaele.dellaca@polimi.it http://www.tbmlab.polimi.it Luigi Biasco Division of Cardiology, San Giovanni Battista Hospital, University of Turin Corso Bramante, 88/90 Torino TO 10126 Italy http://www.cardiologiaospedalieramolinette.it/ L.Cavalleri Anaesthesia and Intensive Care-Galliera Hospital Genoa Mura delle Cappuccine 14 Genova GE 16128 Italy http://galliera.it/ Luca Pomidori Department of Biomedical sciences and advanced therapies, University of Ferrara +39 3287858417 Corso Giovecca, 203 Ferrara FE 44100 Italy luca.pomidori@unife.it www.unife.it Annalisa Cogo Biomedical Research Centre applied to sport, University of Ferrara +39 0532210420 +39 0532455888 +39 0532210297 Via Gramicia 35 Ferrara FE 44123 Italy annalisa.cogo@unife.it http://www.unife.it/centri/centro/studi-biomedici R. Pellegrino Allergy and Respiratory Physiopathology, S. Croce and Carle Hospital Via Michele Coppino 26 Cuneo CN 12100 Italy pellegrino.r@ospedale.cuneo.it http://www.ospedale.cuneo.it/ Giuseppe Miserocchi Department of Experimental Medicine, the University of Milano-Bicocca +39 026448 8321 Via Cadore 48 Monza MB 20052 Italy giuseppe.miserocchi@unimib.it www.dimesab.medicina.unimib.it Elsevier Science Publishing Company nlinfo@sciencedirect.com http://www.elsevier.com/wps/find/homepage.cws_home https://geoportal.mountaingenius.org/geonetwork/srv/eng/resources.get?uuid=94615bfc-a136-482e-9a9d-77bd07c5cb2a&fname=mountain_witness__s.png thumbnail png SHARE respiratory muscles Respiratory power altitude exercise eng health 6.62397 18.5144 36.6492 47.0946 http://www.sciencedirect.com/science/article/pii/S1569904811000966 WWW:LINK-1.0-http--link Abstract:"Respiratory and leg muscles perceived exertion during exercise at altitude." “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.