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The effects of oral smokeless tobacco administration on endurance performance

BACKGROUND: Smokeless tobacco is widely used by athletes to enhance performance. Nicotine is a central nervous system stimulant and acts on cardiocirculatory and metabolic systems, involving tissue blood flow and circulatory vasoreactivity. The aim of this study was to investigate the effects of the...

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Autores principales: Zandonai, Thomas, Tam, Enrico, Bruseghini, Paolo, Pizzolato, Fabio, Franceschi, Loretta, Baraldo, Massimo, Capelli, Carlo, Cesari, Paola, Chiamulera, Cristiano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Shanghai University of Sport 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226421/
https://www.ncbi.nlm.nih.gov/pubmed/30450256
http://dx.doi.org/10.1016/j.jshs.2016.12.006
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author Zandonai, Thomas
Tam, Enrico
Bruseghini, Paolo
Pizzolato, Fabio
Franceschi, Loretta
Baraldo, Massimo
Capelli, Carlo
Cesari, Paola
Chiamulera, Cristiano
author_facet Zandonai, Thomas
Tam, Enrico
Bruseghini, Paolo
Pizzolato, Fabio
Franceschi, Loretta
Baraldo, Massimo
Capelli, Carlo
Cesari, Paola
Chiamulera, Cristiano
author_sort Zandonai, Thomas
collection PubMed
description BACKGROUND: Smokeless tobacco is widely used by athletes to enhance performance. Nicotine is a central nervous system stimulant and acts on cardiocirculatory and metabolic systems, involving tissue blood flow and circulatory vasoreactivity. The aim of this study was to investigate the effects of the oral smokeless tobacco (Swedish snus (SS)) on the perception of fatigue and time to exhaustion (TTE) during moderate-intensity aerobic exercise. METHODS: Fourteen healthy non-tobacco male users were recruited for a double-blind, controlled crossover design (SS vs. snus placebo (SP)). Subjects were tested for 3 sessions: experimental session 1 (Exp1) consisted of an incremental test to determine the maximal aerobic power output (W(max)), whereas Exp2 and Exp3 consisted of exercising at 65%W(max) until exhaustion in SS or SP conditions. During Exp2 and Exp3, muscle and cerebral oxygenation was assessed by means of near-infrared spectroscopy, and the rating of perceived exertion (RPE) was recorded. RESULTS: Comparing SS with SP tests, significant differences (p < 0.05) were found in the values of cerebral (~3%) and muscular tissues oxygenation (~4%) in the first 30 min of exercise. The RPE values were not significantly different between the 2 conditions (SS vs. SP). No significant difference was found in TTE (SS: 54.25 ± 21.84 min; SP: 50.01 ± 17.03 min). CONCLUSION: This study showed that muscular and cerebral oxygenation increased significantly with snus administration during an endurance exercise until exhaustion, but this did not affect fatigue perception and TTE. The results showed that snus could not be considered an ergogenic substance in non-tobacco users.
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spelling pubmed-62264212018-11-16 The effects of oral smokeless tobacco administration on endurance performance Zandonai, Thomas Tam, Enrico Bruseghini, Paolo Pizzolato, Fabio Franceschi, Loretta Baraldo, Massimo Capelli, Carlo Cesari, Paola Chiamulera, Cristiano J Sport Health Sci Regular Paper BACKGROUND: Smokeless tobacco is widely used by athletes to enhance performance. Nicotine is a central nervous system stimulant and acts on cardiocirculatory and metabolic systems, involving tissue blood flow and circulatory vasoreactivity. The aim of this study was to investigate the effects of the oral smokeless tobacco (Swedish snus (SS)) on the perception of fatigue and time to exhaustion (TTE) during moderate-intensity aerobic exercise. METHODS: Fourteen healthy non-tobacco male users were recruited for a double-blind, controlled crossover design (SS vs. snus placebo (SP)). Subjects were tested for 3 sessions: experimental session 1 (Exp1) consisted of an incremental test to determine the maximal aerobic power output (W(max)), whereas Exp2 and Exp3 consisted of exercising at 65%W(max) until exhaustion in SS or SP conditions. During Exp2 and Exp3, muscle and cerebral oxygenation was assessed by means of near-infrared spectroscopy, and the rating of perceived exertion (RPE) was recorded. RESULTS: Comparing SS with SP tests, significant differences (p < 0.05) were found in the values of cerebral (~3%) and muscular tissues oxygenation (~4%) in the first 30 min of exercise. The RPE values were not significantly different between the 2 conditions (SS vs. SP). No significant difference was found in TTE (SS: 54.25 ± 21.84 min; SP: 50.01 ± 17.03 min). CONCLUSION: This study showed that muscular and cerebral oxygenation increased significantly with snus administration during an endurance exercise until exhaustion, but this did not affect fatigue perception and TTE. The results showed that snus could not be considered an ergogenic substance in non-tobacco users. Shanghai University of Sport 2018-10 2016-12-28 /pmc/articles/PMC6226421/ /pubmed/30450256 http://dx.doi.org/10.1016/j.jshs.2016.12.006 Text en © 2018 Published by Elsevier B.V. on behalf of Shanghai University of Sport. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Regular Paper
Zandonai, Thomas
Tam, Enrico
Bruseghini, Paolo
Pizzolato, Fabio
Franceschi, Loretta
Baraldo, Massimo
Capelli, Carlo
Cesari, Paola
Chiamulera, Cristiano
The effects of oral smokeless tobacco administration on endurance performance
title The effects of oral smokeless tobacco administration on endurance performance
title_full The effects of oral smokeless tobacco administration on endurance performance
title_fullStr The effects of oral smokeless tobacco administration on endurance performance
title_full_unstemmed The effects of oral smokeless tobacco administration on endurance performance
title_short The effects of oral smokeless tobacco administration on endurance performance
title_sort effects of oral smokeless tobacco administration on endurance performance
topic Regular Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6226421/
https://www.ncbi.nlm.nih.gov/pubmed/30450256
http://dx.doi.org/10.1016/j.jshs.2016.12.006
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