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Regular moist snuff dipping does not affect endurance exercise performance
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences. (Forskningsgruppen för fysisk aktivitet, prestation och hälsa)ORCID iD: 0000-0002-0642-4838
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.ORCID iD: 0000-0001-8353-3766
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.
Swedish School of Sport and Health Sciences, GIH, Department of Sport and Health Sciences, Björn Ekblom's research group.ORCID iD: 0000-0002-1343-8656
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2013 (English)Conference paper, (Refereed)
Abstract [en]

Physiological and medical effects of snuff have previously been obtained either in cross-sectional studies or after snuff administration to non-tobacco users, but the effects of snuff cessation (SC) after several years of daily use on individual level are unknown. 24 participants with >2 years of daily snuff-use were tested before and after >6 weeks SC (SCG), together with a control group (CO) of 11 snuff users who kept their normal habits. Resting heart rate (HR) was significantly lower in SCG after SC. Body mass in SCG group increased by 1.4 ± 1.7 kg and blood pressure (BP) were reduced, but without significant differences between groups. Total cholesterol increased from 4.12 ± 0.54 (95% CI 3.89–4.35) to 4.46 ± 0.70 (95% CI 4.16–4.75) mM/L in SCG, due to increased LDL, and this change was significantly different from CO. Resting values of HDL, C-reactive protein, and free fatty acids (FFA) remained unchanged in both groups. During a four-stage incremental (from 50 to 80% of VO2max) and a prolonged (60 min at 50% of VO2max) cycling test HR and BP were reduced in SCG, while oxygen uptake (VO2), respiratory exchange ratio, blood lactate (bLa) and blood glucose (bGlu) concentration, and rate of perceived exertion were unchanged. All measurements were unchanged in CO. During the prolonged exercise FFA was reduced but there was no significant difference between groups. During the maximal treadmill running test peak values of VO2, pulmonary ventilation (VE), time to exhaustion and bLa were unchanged in both groups. In conclusion, endurance exercise performance (VO2max and maximal endurance time) does not seem to be affected by prolonged snuff use, while effects on cardiovascular risk factors are contradictory.

Place, publisher, year, edition, pages
2013.
Keyword [en]
Smokeless tobacco, Nicotine, Cardiovascular risk factors
National Category
Sport and Fitness Sciences Physiology
Research subject
Medicine/Technology
Identifiers
URN: urn:nbn:se:gih:diva-3031OAI: oai:DiVA.org:gih-3031DiVA: diva2:661777
Conference
18th European College of Sport Sciences (ECSS) Congress 26-29 June 2013 Barcelona
Available from: 2013-11-04 Created: 2013-11-04 Last updated: 2017-03-31Bibliographically approved

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Presentationsposter(463 kB)188 downloads
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File name FULLTEXT01.pdfFile size 463 kBChecksum SHA-512
2ccbd131ddee052925450bb34a419a2e63d291a357cd6f8a2fa92676196e4a162ded99da85c01741cc3a63e78f4c23db29a9f50c5de08fe68e6e0f643ae58a21
Type fulltextMimetype application/pdf

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http://www.ecss-congress.eu/2013/13/

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Mattsson, C. MikaelBjörkman, FridaEdin, FredrikLarsen, FilipEkblom, Björn
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Citation style
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