High-Performance Sport

Background: The aim of this study was to analyze validity of BORG-Scale (6-20) while eccentric muscle activity. BORG-Scale is a very valid possibility to rate perceived exertion while concentric muscle activity. It allows to estimate heart rate and therefore stress for cardiovascular system in an ea...

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Autores principales:	Gasser B, Püntener O, Hoppeler H, Flück M
Formato:	article
Lenguaje:	DE EN
Publicado:	Dynamic Media Sales Verlag 2018
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/693319594a604bf6960b757e1325290f
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spelling	oai:doaj.org-article:693319594a604bf6960b757e1325290f2021-11-16T19:01:41ZHigh-Performance Sport0344-59252510-526410.5960/dzsm.2018.350https://doaj.org/article/693319594a604bf6960b757e1325290f2018-11-01T00:00:00Zhttps://www.germanjournalsportsmedicine.com/archiv/archiv-2018/issue-11/is-eccentric-muscle-work-adequately-perceived-an-analysis-with-borg-scale/https://doaj.org/toc/0344-5925https://doaj.org/toc/2510-5264Background: The aim of this study was to analyze validity of BORG-Scale (6-20) while eccentric muscle activity. BORG-Scale is a very valid possibility to rate perceived exertion while concentric muscle activity. It allows to estimate heart rate and therefore stress for cardiovascular system in an easy applicable manner. Material and Methods: Twelve participants (28.610.3 years / 173.36.8 cm / 68.814.3 kg) absolved a training program on a softroboter. This consisted of a braking movement while four times 5 minutes with alternating right respectively left leg movements during nine sec eccentric muscle work with varying load (15, 25, 35, 45 kg) followed by a one sec lasting concentric back movement. During the program heart rate and BORG-scale was measured after 1, 2, 3, 4 and 5 Minutes for local exertion in the left respectively the right leg as well as in total. Results: Although in the here analyzed movements BORG-Scale was indicating alternating exertion, however the postulated relationship (heart rate=10 x BORG (6-20) - value) was not detectable. Limitations and Conclusions: The findings are explainable yet eccentric muscle activity is a Titin based and not O2 respectively ATP coupled contraction form. Therefore, with the same load in eccentric muscle activity only around one fourth O2is needed what probably affects perceived exertion accordingly. Furthermore, differences in the accuracy of perception between concentric and eccentric movements seem to exist. However, study was only conducted with 12 healthy participants, as a consequence only first hints can be made and no general recommendations. Measurements of O2, heart rate and EMG during the same protocol with larger samples could reveal more accurately factors determining rate of perceived exertion while eccentric muscle activity.KEY WORDS: Softroboter, Fall Prophylaxis, Cardiovascular Prevention, RehabilitationGasser BPüntener OHoppeler HFlück MDynamic Media Sales VerlagarticleSports medicineRC1200-1245DEENDeutsche Zeitschrift für Sportmedizin, Vol 69, Iss 11 (2018)
institution	DOAJ
collection	DOAJ
language	DE EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Gasser B Püntener O Hoppeler H Flück M High-Performance Sport
description	Background: The aim of this study was to analyze validity of BORG-Scale (6-20) while eccentric muscle activity. BORG-Scale is a very valid possibility to rate perceived exertion while concentric muscle activity. It allows to estimate heart rate and therefore stress for cardiovascular system in an easy applicable manner. Material and Methods: Twelve participants (28.610.3 years / 173.36.8 cm / 68.814.3 kg) absolved a training program on a softroboter. This consisted of a braking movement while four times 5 minutes with alternating right respectively left leg movements during nine sec eccentric muscle work with varying load (15, 25, 35, 45 kg) followed by a one sec lasting concentric back movement. During the program heart rate and BORG-scale was measured after 1, 2, 3, 4 and 5 Minutes for local exertion in the left respectively the right leg as well as in total. Results: Although in the here analyzed movements BORG-Scale was indicating alternating exertion, however the postulated relationship (heart rate=10 x BORG (6-20) - value) was not detectable. Limitations and Conclusions: The findings are explainable yet eccentric muscle activity is a Titin based and not O2 respectively ATP coupled contraction form. Therefore, with the same load in eccentric muscle activity only around one fourth O2is needed what probably affects perceived exertion accordingly. Furthermore, differences in the accuracy of perception between concentric and eccentric movements seem to exist. However, study was only conducted with 12 healthy participants, as a consequence only first hints can be made and no general recommendations. Measurements of O2, heart rate and EMG during the same protocol with larger samples could reveal more accurately factors determining rate of perceived exertion while eccentric muscle activity.KEY WORDS: Softroboter, Fall Prophylaxis, Cardiovascular Prevention, Rehabilitation
format	article
author	Gasser B Püntener O Hoppeler H Flück M
author_facet	Gasser B Püntener O Hoppeler H Flück M
author_sort	Gasser B
title	High-Performance Sport
title_short	High-Performance Sport
title_full	High-Performance Sport
title_fullStr	High-Performance Sport
title_full_unstemmed	High-Performance Sport
title_sort	high-performance sport
publisher	Dynamic Media Sales Verlag
publishDate	2018
url	https://doaj.org/article/693319594a604bf6960b757e1325290f
work_keys_str_mv	AT gasserb highperformancesport AT puntenero highperformancesport AT hoppelerh highperformancesport AT fluckm highperformancesport
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High-Performance Sport

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