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Moyen NE, Barnes MJ, Perry BG, Fujii N, Amano T, Kondo N, Mündel T. Nicotine exacerbates exertional heat strain in trained men: a randomized, placebo-controlled, double-blind study. J Appl Physiol (1985) 2024; 137:421-428. [PMID: 38961822 DOI: 10.1152/japplphysiol.00403.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/02/2024] [Accepted: 07/02/2024] [Indexed: 07/05/2024] Open
Abstract
To determine whether using nicotine exacerbates exertional heat strain through an increased metabolic heat production (Hprod) or decreased skin blood flow (SkBF), 10 nicotine-naïve trained males [37 ± 12 yr; peak oxygen consumption (V̇o2peak): 66 ± 10 mL·min-1·kg-1] completed four trials at 20°C and 30°C following overnight transdermal nicotine (7 mg·24 h-1) and placebo use in a crossover, double-blind design. They cycled for 60 min (55% V̇o2peak) followed by a time trial (∼75% V̇o2peak) during which measures of gastrointestinal (Tgi) and mean weighted skin ([Formula: see text]sk) temperatures, SkBF, Hprod, and mean arterial pressure (MAP) were made. The difference in ΔTgi between nicotine and placebo trials was greater during 30°C (0.4 ± 0.5°C) than 20°C (0.1 ± 0.7°C), with [Formula: see text]sk higher during nicotine than placebo trials (0.5 ± 0.5°C, P = 0.02). SkBF became progressively lower during nicotine than placebo trials (P = 0.01) and progressively higher during 30°C than 20°C trials (P < 0.01); MAP increased from baseline (P < 0.01) and remained elevated in all trials. The difference in Hprod between 30°C and 20°C trials was lower during nicotine than placebo (P = 0.01) and became progressively higher during 30°C than 20°C trials with exercise duration (P = 0.03). Mean power output during the time trial was lower during 30°C than 20°C trials (24 ± 25 W, P = 0.02), and although no effect of nicotine was observed (P > 0.59), two participants (20%) were unable to complete their 30°C nicotine trials as one reached the ethical limit for Tgi (40.0°C), whereas the other withdrew due to "nausea and chills" (Tgi = 39.7°C). These results demonstrate that nicotine use increases thermal strain and risk of exertional heat exhaustion by reducing SkBF.NEW & NOTEWORTHY In naïve participants, acute nicotine use exerts a hyperthermic effect that increases the risk of heat exhaustion during exertional heat strain, which is driven by a blunted skin blood flow response. This has implications for 1) populations that face exertional heat strain and demonstrate high nicotine use (e.g., athletes and military, 25%-50%) and 2) study design whereby screening and exclusion for nicotine use or standardization of prior use (e.g., overnight abstinence) is encouraged.
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Affiliation(s)
| | - Matthew J Barnes
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
| | - Blake G Perry
- School of Health Sciences, Massey University, Wellington, New Zealand
| | - Naoto Fujii
- Advanced Research Initiative for Human High Performance, Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - Tatsuro Amano
- Laboratory for Exercise and Environmental Physiology, Faculty of Education, Niigata University, Niigata, Japan
| | - Narihiko Kondo
- Laboratory for Applied Human Physiology, Graduate School of Human Development and Environment, Kobe University, Kobe, Japan
| | - Toby Mündel
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
- Hydration Exercise and Temperature Laboratory, Department of Kinesiology, Brock University, St. Catharines, Ontario, Canada
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Chen F, Zhang Z, Zhang H, Guo P, Feng J, Shen H, Liu X. Activation of α7 Nicotinic Acetylcholine Receptor Improves Muscle Endurance by Upregulating Orosomucoid Expression and Glycogen Content in Mice. J Cell Biochem 2024:e30630. [PMID: 39014907 DOI: 10.1002/jcb.30630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/13/2024] [Accepted: 07/01/2024] [Indexed: 07/18/2024]
Abstract
There are presently no acknowledged therapeutic targets or official drugs for the treatment of muscle fatigue. The alpha7 nicotinic acetylcholine receptor (α7nAChR) is expressed in skeletal muscle, with an unknown role in muscle endurance. Here, we try to explore whether α7nAChR could act as a potential therapeutic target for the treatment of muscle fatigue. Results showed that nicotine and PNU-282987 (PNU), as nonspecific and specific agonists of α7nAChR, respectively, could both significantly increase C57BL6/J mice treadmill-running time in a time- and dose-dependent manner. The improvement effect of PNU on running time and ex vivo muscle fatigue index disappeared when α7nAChR deletion. RNA sequencing revealed that the differential mRNAs affected by PNU were enriched in glycolysis/gluconeogenesis signaling pathways. Further studies found that PNU treatment significantly elevates glycogen content and ATP level in the muscle tissues of α7nAChR+/+ mice but not α7nAChR-/- mice. α7nAChR activation specifically increased endogenous glycogen-targeting protein orosomucoid (ORM) expression both in vivo skeletal muscle tissues and in vitro C2C12 skeletal muscle cells. In ORM1 deficient mice, the positive effects of PNU on running time, glycogen and ATP content, as well as muscle fatigue index, were abolished. Therefore, the activation of α7nAChR could enhance muscle endurance via elevating endogenous anti-fatigue protein ORM and might act as a promising therapeutic strategy for the treatment of muscle fatigue.
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Affiliation(s)
- Fei Chen
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Zhen Zhang
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
- Department of Nutrition and Food Hygiene, Second Military Medical University, Shanghai, China
| | - Huimin Zhang
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Pengyue Guo
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Jiayi Feng
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Hui Shen
- Department of Nutrition and Food Hygiene, Second Military Medical University, Shanghai, China
| | - Xia Liu
- Department of Clinical Pharmacy, School of Pharmacy, Second Military Medical University, Shanghai, China
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3
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Read D, Cope E, Taylor L. Nicotine dependence in elite sport. Addiction 2024; 119:595-596. [PMID: 38123180 DOI: 10.1111/add.16417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Daniel Read
- Institute for Sport Business, Loughborough University London, London, UK
| | - Ed Cope
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Lee Taylor
- School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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Read D, Carter S, Hopley P, Chamari K, Taylor L. Snus use in football: the threat of a new addiction? Biol Sport 2024; 41:201-205. [PMID: 38188104 PMCID: PMC10765442 DOI: 10.5114/biolsport.2024.130050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 01/05/2024] Open
Abstract
The use of Snus, an oral nicotine pouch, is becoming increasingly common in English professional football. As a nicotine product, Snus raises important questions about health and performance for practitioners. The purpose of this short communication is to explain the current regulatory status of Snus, performance relatedeffects, and associated health outcomes. Further, based on player statements and evidence from the general public, we argue that Snus is used as a coping mechanism to deal with the stressors of professional football. Accordingly, the communication concludes with guidance for club-level multidisciplinary interventions to support player welfare, aimed at reducing Snus use as well as future research recommendations.
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Affiliation(s)
- Daniel Read
- Institute for Sport Business, Loughborough University London, London, United Kingdom
| | - Sarah Carter
- Faculty of Health, Exercise and Sports Science, Charles Darwin University, Darwin, NT 0810, Australia
| | | | - Karim Chamari
- Aspetar Sports Medicine and Orthopedic Hospital, FIFA Medical Centre of Excellence, Doha, Qatar
| | - Lee Taylor
- School of Sport, Exercise and Health Sciences, Loughborough University. National Centre for Sport and Exercise Medicine (NCSEM), Loughborough, United Kingdom
- Sport and Exercise Discipline Group, Faculty of Health, University of Technology Sydney, Moore Park, NSW, Australia
- Human Performance Research Centre, University of Technology Sydney (UTS), Sydney, Australia
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McDuff DR, Garvin M, Joy Chang, Thompson D. Substance Misuse in Elite Athletes: Early Detection, Brief Intervention and Referral to Treatment. Clin Sports Med 2024; 43:127-144. [PMID: 37949506 DOI: 10.1016/j.csm.2023.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Sports medicine physicians and athletic trainers regularly encounter athletes who misuse substances that put them at risk for adverse health, social, interpersonal, academic, psychological, and performance effects. The three most encountered substances are alcohol (binge drinking), cannabis (marijuana), and tobacco/nicotine vaping. Early detection using self-report screening instruments, adverse consequences questionnaires, and urine testing are reviewed. Brief interventions that involve personalized feedback, goal setting, support system involvement, psychoeducation, contingency management, and/or motivational interviewing are highlighted. Lack of response to brief intervention or progression to a substance use disorder should prompt the consideration of referral to a substance specialty level of care.
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Affiliation(s)
- David R McDuff
- Department of Psychiatry, University of Maryland School of Medicine, 110 South Paca Street - 4th Floor, Baltimore, MD 21201, USA; Baltimore Orioles, Major League Baseball, 333 West Camden Street, Oriole Park at Camden Yards, Baltimore, MD 21201, USA; Maryland Centers for Psychiatry, 3290 North Ridge Road, Suite 320, Ellicott City, MD 21043, USA.
| | - Michelle Garvin
- Detroit Lions, National Football League, 222 Republic Drive, Allen Park, MI 48101, USA; Elite Performance Psychology, LLC, 205 Warrenton Drive, Silver Spring, MD 20904, USA
| | - Joy Chang
- Department of Psychiatry, University of Maryland School of Medicine, 110 South Paca Street - 4th Floor, Baltimore, MD 21201, USA; University of Maryland, College Park, 8500 Paint Branch Drive, XFINITY Center, Room 2707, College Park, MD 20742, USA
| | - Donald Thompson
- Department of Psychiatry, University of Maryland School of Medicine, 110 South Paca Street - 4th Floor, Baltimore, MD 21201, USA; Baltimore Orioles, Major League Baseball, 333 West Camden Street, Oriole Park at Camden Yards, Baltimore, MD 21201, USA
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Zandonai T, Botrè F, Abate MG, Peiró AM, Mündel T. Should We be Concerned with Nicotine in Sport? Analysis from 60,802 Doping Control Tests in Italy. Sports Med 2023; 53:1273-1279. [PMID: 36826714 PMCID: PMC9951140 DOI: 10.1007/s40279-023-01819-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/02/2023] [Indexed: 02/25/2023]
Abstract
BACKGROUND Nicotine is a psychostimulant drug with purported use in sports environments, though the use of nicotine among athletes has not been studied extensively. OBJECTIVE The aim of this study was to assess the nicotine positivity rate in 60,802 anti-doping urine samples from 2012 to 2020. METHODS Urine samples obtained in-competition at different national and international sports events held in Italy during the period 2012-2020 were analysed. All samples were from anonymous athletes that were collected and analysed at the WADA-accredited antidoping laboratory in Rome, Italy. Samples were analysed by gas chromatography coupled with mass spectrometry, with a cut-off concentration for nicotine of > 50 ng/mL. Results were stratified by year, sport and sex. RESULTS An overall mean of 22.7% of the samples (n = 13,804; males: n = 11,099; females: n = 2705) showed nicotine intake, with male samples also displaying higher positivity rates than female (24.1% vs 18.5%). Sample positivity was higher during 2012-2014 (25-33%) than 2015-2020 (15-20%). Samples from team sports displayed a higher positivity rate than those from individual sports (31.4 vs 14.1%). CONCLUSIONS The current data demonstrates that one in five samples from a range of 90 sports test positive for nicotine in-competition. There is a lower positivity rate in endurance versus power/strength athletes and higher positivity rate in team versus individual sports, probably accounted for by differences in physiological and psychological demands and the desire for socialisation. WADA, international and national sports federations should consider these findings with concern, proactively investigate this phenomenon and act in order to protect the health and welfare of its athletes.
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Affiliation(s)
- Thomas Zandonai
- Department of Pharmacology, Paediatrics and Organic Chemistry, Miguel Hernández University of Elche, Crta. Nacional, N-332. S/N, Sant Joan, 03550, Alicante, Spain. .,Neuropharmacology on Pain and Functional Diversity (NED), Institute of Health and Biomedical Research of Alicante (ISABIAL Foundation), Alicante, Spain. .,Department of Social and Developmental Psychology, "Sapienza" University of Rome, Rome, Italy.
| | - Francesco Botrè
- grid.498572.50000 0001 0395 9784Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Rome, Italy ,grid.9851.50000 0001 2165 4204REDs, Research and Expertise on Anti-Doping Sciences, ISSUL Institute des Sciences du Sport, University of Lausanne, Lausanne, Switzerland
| | - Maria Gabriella Abate
- grid.498572.50000 0001 0395 9784Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Rome, Italy
| | - Ana María Peiró
- grid.513062.30000 0004 8516 8274Neuropharmacology on Pain and Functional Diversity (NED), Institute of Health and Biomedical Research of Alicante (ISABIAL Foundation), Alicante, Spain ,Pain Unit, Department of Health of Alicante-General Hospital, Alicante, Spain ,grid.106023.60000 0004 1770 977XClinical Pharmacology Unit, Department of Health of Alicante, General Hospital, Alicante, Spain
| | - Toby Mündel
- grid.148374.d0000 0001 0696 9806School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand ,grid.411793.90000 0004 1936 9318Department of Kinesiology, Brock University, St. Catharines, Canada
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Gurrani S, Prakasham K, Zii Ying JL, Shiea J, Ku YJ, Lin YC, Huang PC, Andaluri G, Lee KC, Ponnusamy VK. A low-cost eco-friendly fast drug extraction (FaDEx) technique for environmental and bio-monitoring of psychoactive drug in urban water and sports-persons' urine samples. ENVIRONMENTAL RESEARCH 2023; 217:114787. [PMID: 36410459 DOI: 10.1016/j.envres.2022.114787] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 10/23/2022] [Accepted: 11/09/2022] [Indexed: 06/16/2023]
Abstract
Nicotine is the most prominent psychoactive/addictive chemical substance consumed worldwide among young players in team sports. Moreover, urinary nicotine discharge and nicotine-based products disposal in environmental waters has been unavoidable in recent years. Therefore, sensitive monitoring of nicotine content in environmental waters and human urine samples is essential. In this study, we developed a miniaturized novel green, low-cost, sensitive, in-syringe-based semi-automated fast drug extraction (FaDEx) protocol coupled with gas chromatography-flame ionization detection (GC-FID) for the efficient environmental and bio-monitoring of nicotine in aqueous samples. The FaDEx method consists of two steps; firstly, the target analyte was extracted using dimethyl carbonate (a green solvent) and extraction salts. After that, the extraction solvent was passed automatically through the solid-phase extraction cartridge at a constant flow rate for the cleanup process to achieve the sensitive nicotine analysis by GC-FID. Under optimized experimental conditions, the developed method showed excellent linearity over the concentration ranges between 20-2000 ng mL-1 with a correlation coefficient >0.99. The detection and quantification limits were 4 and 20 ng mL-1, respectively. The presented method was applied to monitor and assess nicotine exposure in sports-persons' urine and environmental water samples. The method accuracy and precision in terms of relative recovery and relative standard deviation (for triplicate analysis) were 85.4-110.2% and ≤8%, respectively. Finally, the impact of our procedure on the environment from a green analytical chemistry view was assessed using a novel metric system called AGREE, and obtained the greenness score of 0.87, indicating its an efficient alternative green analytical protocol for routine environmental and bio-monitoring of nicotine in environmental and biological samples.
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Affiliation(s)
- Swapnil Gurrani
- Research Center for Precision Environmental Medicine, and Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan
| | - Karthikeyan Prakasham
- Research Center for Precision Environmental Medicine, and Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan
| | - Jess Lim Zii Ying
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan
| | - Jentaie Shiea
- Research Center for Precision Environmental Medicine, and Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Department of Chemistry, National Sun Yat-Sen University, Kaohsiung City, 804, Taiwan
| | - Yi-Jia Ku
- Research and Development Division, Great Engineering Technology (GETECH) Corporation, No.392, Yucheng Rd., Zuoying District., Kaohsiung City, 813, Taiwan
| | - Yu-Chia Lin
- Research and Development Division, Great Engineering Technology (GETECH) Corporation, No.392, Yucheng Rd., Zuoying District., Kaohsiung City, 813, Taiwan
| | - Po-Chin Huang
- Research Center for Precision Environmental Medicine, and Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; National Institute of Environmental Health Sciences, National Health Research Institutes (NHRI), Miaoli County, 35053, Taiwan
| | - Gangadhar Andaluri
- Civil and Environmental Engineering Department, College of Engineering, Temple University, Philadelphia, PA 19122, United States
| | - Kung-Che Lee
- Department of Athletic Performace, National University of Kaohsiung, Kaohsiung City, 811, Taiwan.
| | - Vinoth Kumar Ponnusamy
- Research Center for Precision Environmental Medicine, and Ph.D. Program in Environmental and Occupational Medicine, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Department of Medicinal and Applied Chemistry, Kaohsiung Medical University (KMU), Kaohsiung City, 807, Taiwan; Department of Chemistry, National Sun Yat-Sen University, Kaohsiung City, 804, Taiwan; Department of Medical Research, Kaohsiung Medical University Hospital (KMUH), Kaohsiung City, 807, Taiwan.
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Bartík P, Šagát P, Pyšná J, Pyšný L, Suchý J, Trubák Z, Petrů D. The Effect of High Nicotine Dose on Maximum Anaerobic Performance and Perceived Pain in Healthy Non-Smoking Athletes: Crossover Pilot Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:1009. [PMID: 36673765 PMCID: PMC9859273 DOI: 10.3390/ijerph20021009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 06/17/2023]
Abstract
Background: In recent years, there has been intensive discussion about the positive effect of nicotine usage on enhancing sports performance. It is frequently applied through a non-burned tobacco form before physical activity. Nicotine is under the World Anti-Doping Agency (WADA) 2021 monitoring program. Therefore, study results that reveal either positive or negative effects are expected. This is the pilot study that reports the effect of 8 mg dose of nicotine on performance and perceived pain. Material and Methods: This research aimed to explore the oral intake effect of a high-nicotine dose (8 mg) on the maximum anaerobic performance and other selected physical performance parameters in healthy, well-trained adult athletes (n = 15, age 30.7 ± 3.6, BMI 25.3 ± 1.7). The cross-sectional study protocol included the oral administration of either sublingual nicotine or placebo tablets before the anaerobic load assessed by a standardized 30 s Wingate test of the lower limbs. Afterward, the Borg subjective perception of pain (CR 10) and Borg rating of perceived exertion (RPE) were evaluated. Wilcoxon signed-rank test was used for the analysis of data with a 0.05 level of significance. Results: The results revealed that oral administration of an 8 mg nicotine dose does not significantly improve any of the physical performance parameters monitored. We only reported the statistically significant positive effect in RPE (p = 0.03). Conclusion: Lower perception of pain intensity that we reported after nicotine application might be an important factor that affects performance. However, we did not report any improvement in physical performance parameters.
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Affiliation(s)
- Peter Bartík
- Health and Physical Education Department, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Peter Šagát
- Health and Physical Education Department, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Jana Pyšná
- Department of Physical Education and Sport, Faculty of Education, J. E. Purkyne University in Ústí nad Labem, 400 96 Ústí nad Labem, Czech Republic
| | - Ladislav Pyšný
- Department of Physical Education and Sport, Faculty of Education, J. E. Purkyne University in Ústí nad Labem, 400 96 Ústí nad Labem, Czech Republic
| | - Jiří Suchý
- Department of Physical Education, Faculty of Education, Charles University, 116 39 Prague, Czech Republic
| | - Zdeněk Trubák
- Department of Physical Education and Sport, Faculty of Education, J. E. Purkyne University in Ústí nad Labem, 400 96 Ústí nad Labem, Czech Republic
| | - Dominika Petrů
- Department of Physical Education and Sport, Faculty of Education, J. E. Purkyne University in Ústí nad Labem, 400 96 Ústí nad Labem, Czech Republic
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Irvine DS, Lee EY, Janssen I, Leatherdale ST. Gendered associations between e-cigarette use, cigarette smoking, physical activity, and sedentary behaviour in a sample of Canadian adolescents. DIALOGUES IN HEALTH 2022; 1:100029. [PMID: 38515886 PMCID: PMC10953981 DOI: 10.1016/j.dialog.2022.100029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 05/31/2022] [Accepted: 07/08/2022] [Indexed: 03/23/2024]
Abstract
Objectives To examine associations between e-cigarette use, cigarette smoking, physical activity, and sedentary behaviour among a large sample of Canadian adolescents (Grades 9-12) by sex. Methods Cross-sectional data from 55,629 students who participated in COMPASS Year 6 (2017-2018) were used. Exposures included e-cigarette use and cigarette smoking. Outcomes included meeting recommendations for moderate- to vigorous- physical activity (MVPA;≥60 min/d), muscular strengthening exercises (MSE;≥3 time/wk), and recreational screen time (ST;≤2 h/day) and participating in intramurals or competitive team sports. Logistic regressions were performed after adjusting for relevant covariates. Results Male adolescents showed higher prevalence of e-cigarette use (40.0% vs 31.3%) and cigarette smoking (4.4% vs 2.9%) than females. Both males and females who used e-cigarettes were more likely to meet MVPA and MSE recommendations, but less likely to meet the ST recommendation than those who did not use e-cigarettes. E-cigarette use was also consistently associated with more sport participation in males, however, among females the results were mixed. Current cigarette use was associated with meeting the MVPA recommendation and less participation in intramurals in males; however, in females, current cigarette smoking was consistently associated with less participation in any sports. Former cigarette use was associated with participation in competitive team sport within school and meeting the MSE recommendation in females only. Conclusions This study found that associations between e-cigarette use and cigarette smoking with physical activity, sedentary behaviour, and sport participation are largely gendered. Identifying differential co-occurrence of risk behaviours by gender is important for future health promotion efforts targeting physical activity among adolescents.
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Affiliation(s)
- Dylan S. Irvine
- Department of Biomedical and Molecular Sciences, Queen's University, 28 Division St, Kingston, ON K7L3N6, Canada
| | - Eun-Young Lee
- School of Kinesiology and Health Studies, Queen's University, 28 Division St, Kingston, ON K7L3N6, Canada
- Department of Gender Studies, Queen's University, 28 Division St, Kingston, ON K7L3N6, Canada
| | - Ian Janssen
- School of Kinesiology and Health Studies, Queen's University, 28 Division St, Kingston, ON K7L3N6, Canada
- Department of Public Health Sciences, Queen's University, 28 Division St, Kingston, ON K7L3N6, Canada
| | - Scott T. Leatherdale
- School of Public Health and Health Systems, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1, Canada
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Miluna S, Melderis R, Briuka L, Skadins I, Broks R, Kroica J, Rostoka D. The Correlation of Swedish Snus, Nicotine Pouches and Other Tobacco Products with Oral Mucosal Health and Salivary Biomarkers. Dent J (Basel) 2022; 10:dj10080154. [PMID: 36005252 PMCID: PMC9406994 DOI: 10.3390/dj10080154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 11/26/2022] Open
Abstract
In society, tobacco products, such as e-cigarettes, and smokeless tobacco products, such as snus and nicotine pouches, are becoming more attractive. There is still a lack of information regarding the effects of these products on the oral mucosa and oral saliva biomarkers. The aim of this study is to evaluate oral mucosa and the presence of inflammatory biomarkers IL-6, IL-1, IL-8, TNF alpha and LRG-1 in saliva. Respondents were divided in four groups based on their tobacco product usage. Oral examination was carried out, saliva samples were taken, and the detection of IL-6, IL-8, IL-1, TNF alpha and LRG-1 levels in saliva was carried out. Out of the tobacco users, 30.8% were snus users, 48.7% were cigarette users and 20.5% were e-cigarette users. The control group was composed of respondents who did not use any tobacco products. E-cigarettes were used more by women, but snus was used more by men. Mucosal changes were seen in the group of snus users, and mucosal changes were only seen in men who had used 5–10 tobacco units per day for 5–10 years. Increased IL-6 levels in saliva were detected in respondents who also experienced mucosal changes. Mucosal changes were white, leathery and localized at the site where snus sachets were placed. Saliva, as an easily available biofluid, could be used as a first tool to detect potentially precancerous signs, but the LRG1 marker cannot be used as a prognostic marker.
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Affiliation(s)
- Sintija Miluna
- Department of Prosthetic Dentistry, Riga Stradins University, LV-1007 Riga, Latvia
- Department of Biology and Microbiology, Riga Stradins University, LV-1007 Riga, Latvia
- Correspondence:
| | - Ricards Melderis
- Emergency Department, Pauls Stradins Clinical University Hospital, LV-1002 Riga, Latvia
| | - Loreta Briuka
- Department of Medicine, Riga Stradins University, LV-1007 Riga, Latvia
| | - Ingus Skadins
- Department of Biology and Microbiology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Renars Broks
- Department of Biology and Microbiology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Juta Kroica
- Department of Biology and Microbiology, Riga Stradins University, LV-1007 Riga, Latvia
| | - Dagnija Rostoka
- Department of Biology and Microbiology, Riga Stradins University, LV-1007 Riga, Latvia
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11
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Health status of recreational runners over 10-km up to ultra-marathon distance based on data of the NURMI Study Step 2. Sci Rep 2022; 12:10295. [PMID: 35717392 PMCID: PMC9206639 DOI: 10.1038/s41598-022-13844-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 05/16/2022] [Indexed: 12/27/2022] Open
Abstract
Endurance running is well-documented to affect health beneficially. However, data are still conflicting in terms of which race distance is associated with the maximum health effects to be obtained. Therefore, the aim of this study was to compare the health status of endurance runners over different race distances. A total of 245 recreational runners (141 females, 104 males) completed an online survey. Health status was assessed by measuring eight dimensions in two clusters of health-related indicators (e.g., body weight, mental health, chronic diseases and hypersensitivity reactions, medication intake) and health-related behaviors (e.g., smoking habits, supplement intake, food choice, healthcare utilization). Each dimension consisted of analytical parameters derived to a general domain score between 0 and 1. Data analysis was performed by using non-parametric ANOVA and MANOVA. There were 89 half-marathon (HM), 65 marathon/ultra-marathon (M/UM), and 91 10-km runners. 10-km runners were leaner than both the HM and M/UM runners (p ≤ 0.05). HM runners had higher health scores for six dimensions (body weight, mental health, chronic diseases and hypersensitivity reactions, medication intake, smoking habits, and health care utilization), which contributed to an average score of 77.1% (score range 62–88%) for their overall state of health. Whereas 10-km and M/UM runners had lesser but similar average scores in the overall state of health (71.7% and 72%, respectively). Race distance had a significant association with the dimension “chronic diseases and hypersensitivity reactions” (p ≤ 0.05). Despite the null significant associations between race distance and seven (out of eight) multi-item health dimensions, a tendency towards better health status (assessed by domain scores of health) among HM runners was found compared to other distance runners. However, the optimal state of health across all race distances supported the notion that endurance running contributed to overall health and well-being. Trial registration number: ISRCTN73074080. Retrospectively registered 12th June 2015.
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Sumartiningsih S, Rahayu S, Handoyo E, Lin JC, Lim CL, Starczewski M, Fuchs PX, Kuo CH. Systemic Lactate Elevation Induced by Tobacco Smoking during Rest and Exercise Is Not Associated with Nicotine. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:2902. [PMID: 35270595 PMCID: PMC8909988 DOI: 10.3390/ijerph19052902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/21/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023]
Abstract
Lactate is a metabolite produced during anaerobic glycolysis for ATP resynthesis, which accumulates during hypoxia and muscle contraction. Tobacco smoking significantly increases blood lactate. Here we conducted a counter-balanced crossover study to examine whether this effect is associated with inhaling nicotine or burned carbon particles. Fifteen male smokers (aged 23 to 26 years) were randomized into 3 inhalation conditions: tobacco smoking, nicotine vaping, and nicotine-free vaping, conducted two days apart. An electronic thermal evaporator (e-cigarette) was used for vaping. We have observed an increased blood lactate (+62%, main effect: p < 0.01) and a decreased blood glucose (−12%, main effect: p < 0.05) during thermal air inhalations regardless of the content delivered. Exercise-induced lactate accumulation and shuttle run performance were similar for the 3 inhalation conditions. Tobacco smoking slightly increased the resting heart rate above the two vaping conditions (p < 0.05), implicating the role of burned carbon particles on sympathetic stimulation, independent of nicotine and thermal air. The exercise response in the heart rate was similar for the 3 conditions. The results of the study suggest that acute hypoxia was induced by breathing thermal air. This may explain the reciprocal increases in lactate and decreases in glucose. The impaired lung function in oxygen delivery of tobacco smoking is unrelated to nicotine.
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Affiliation(s)
- Sri Sumartiningsih
- Department of Sports Science, Universitas Negeri Semarang, Gedung F1 Kampus Sekaran-Gunungpati, Semarang 50229, Indonesia;
- Graduate School of Physical Education, Postgraduate Universitas Negeri Semarang, Gedung A Kampus Pascasarjana Jl. Kelud Utara III, Semarang 50237, Indonesia;
| | - Setya Rahayu
- Department of Sports Science, Universitas Negeri Semarang, Gedung F1 Kampus Sekaran-Gunungpati, Semarang 50229, Indonesia;
- Graduate School of Physical Education, Postgraduate Universitas Negeri Semarang, Gedung A Kampus Pascasarjana Jl. Kelud Utara III, Semarang 50237, Indonesia;
| | - Eko Handoyo
- Graduate School of Physical Education, Postgraduate Universitas Negeri Semarang, Gedung A Kampus Pascasarjana Jl. Kelud Utara III, Semarang 50237, Indonesia;
- Department of Political and Citizenship, Universitas Negeri Semarang, Gedung C Kampus Sekaran-Gunungpati, Semarang 50229, Indonesia
| | - Jung-Charng Lin
- Department of Physical Education and Sport Sciences, National Taiwan Normal University, Taipei 111, Taiwan;
| | - Chin Leong Lim
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 639798, Singapore;
| | - Michal Starczewski
- Faculty of Rehabilitation, Józef Piłsudski University of Physical Education, 00-809 Warsaw, Poland;
| | - Philip X. Fuchs
- Department of Athletic Performance, National Taiwan Normal University, Taipei 116, Taiwan;
| | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, College of Kinesiology, University of Taipei, Taipei 111, Taiwan
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Adami PE, Koutlianos N, Baggish A, Bermon S, Cavarretta E, Deligiannis A, Furlanello F, Kouidi E, Marques-Vidal P, Niebauer J, Pelliccia A, Sharma S, Solberg EE, Stuart M, Papadakis M. Cardiovascular effects of doping substances, commonly prescribed medications and ergogenic aids in relation to sports: a position statement of the sport cardiology and exercise nucleus of the European Association of Preventive Cardiology. Eur J Prev Cardiol 2022; 29:559-575. [PMID: 35081615 DOI: 10.1093/eurjpc/zwab198] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/30/2021] [Accepted: 11/09/2021] [Indexed: 02/06/2023]
Abstract
The use of substances and medications with potential cardiovascular effects among those practicing sports and physical activity has progressively increased in recent years. This is also connected to the promotion of physical activity and exercise as core aspects of a healthy lifestyle, which has led also to an increase in sport participation across all ages. In this context, three main users' categories can be identified, (i) professional and amateur athletes using substances to enhance their performance, (ii) people with chronic conditions, which include physical activity and sport in their therapeutic plan, in association with prescribed medications, and (iii) athletes and young individuals using supplements or ergogenic aids to integrate their diet or obtaining a cognitive enhancement effect. All the substances used for these purposes have been reported to have side effects, among whom the cardiovascular consequences are the most dangerous and could lead to cardiac events. The cardiovascular effect depends on the type of substance, the amount, the duration of use, and the individual response to the substances, considering the great variability in responses. This Position Paper reviews the recent literature and represents an update to the previously published Position Paper published in 2006. The objective is to inform physicians, athletes, coaches, and those participating in sport for a health enhancement purpose, about the adverse cardiovascular effects of doping substances, commonly prescribed medications and ergogenic aids, when associated with sport and exercise.
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Affiliation(s)
- Paolo Emilio Adami
- Health and Science Department, World Athletics, 6-8 Quai Antoine 1er, Monaco 98000, Monaco
| | - Nikolaos Koutlianos
- Sports Medicine Laboratory, Aristotle University of Thessaloniki, Thermi, AUTH DPESS, 54124, Thessaloniki, Greece
| | - Aaron Baggish
- Cardiovascular Performance Program, Massachusetts General Hospital, 55 Fruit Street Boston, MA 02114, USA
| | - Stéphane Bermon
- Health and Science Department, World Athletics, 6-8 Quai Antoine 1er, Monaco 98000, Monaco
| | - Elena Cavarretta
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Corso della Repubblica, 79 - 04100 - Latina (LT), Italy.,Mediterranea Cardiocentro, Via Orazio, 2, 80122, Napoli (NA), Italy
| | - Asterios Deligiannis
- Sports Medicine Laboratory, Aristotle University of Thessaloniki, Thermi, AUTH DPESS, 54124, Thessaloniki, Greece
| | - Francesco Furlanello
- Aritmologia Clinica e Sportiva, IRCCS Gruppo MultiMedica Elettrofisiologia, Via Milanese 300, 20099, Sesto San Giovanni(MI), Italy
| | - Evangelia Kouidi
- Sports Medicine Laboratory, Aristotle University of Thessaloniki, Thermi, AUTH DPESS, 54124, Thessaloniki, Greece
| | - Pedro Marques-Vidal
- Department of Medicine, Internal Medicine, Lausanne University Hospital (CHUV), Rue du Bugnon 46, 1011 Lausanne, Switzerland
| | - Josef Niebauer
- Paracelsus Medical University, Strubergasse 21, 5020 Salzburg, Austria
| | - Antonio Pelliccia
- Sports Medicine and Science Institute, CONI, Largo Piero Gabrielli, 1, 00197, Rome, Italy
| | - Sanjay Sharma
- Cardiovascular Clinical Academic Group, St George's, University of London, Cranmer Terrace, London SW17 0RE, UK
| | | | - Mark Stuart
- International Testing Agency-ITA, Av. de Rhodanie 58, 1007 Lausanne, Switzerland
| | - Michael Papadakis
- Cardiovascular Clinical Academic Group, St George's, University of London, Cranmer Terrace, London SW17 0RE, UK
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Kopiczko A, Cieplińska J. Forearm bone mineral density in adult men after spinal cord injuries: impact of physical activity level, smoking status, body composition, and muscle strength. BMC Musculoskelet Disord 2022; 23:81. [PMID: 35073879 PMCID: PMC8785458 DOI: 10.1186/s12891-022-05022-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 01/05/2022] [Indexed: 11/21/2022] Open
Abstract
Background In the present cross-sectional study, we analyzed the relationships of physical activity level, muscle strength, body composition, injury parameters, and smoking status with bone health in the non-paralyzed upper limb in adult men after spinal cord injuries (SCI). Methods The study covered 50 men after spinal cord injuries aged 35.6 ± 4.9 years (25 wheelchair rugby players and 25 non-athletes). Forearm bone mineral density (BMD), bone mineral content (BMC) in distal (dis) and proximal (prox) part was measured by densitometry. Body mass index (BMI) and body fat percentage (BF) were calculated. Fat mass (FM) and fat-free mass (FFM) were estimated from somatic data. An interview was conducted based on the Global Adult Tobacco Survey questionnaire. Muscle strength (maximal hand grip strength) was measured using a Jamar dynamometer. Results Active male smokers after SCI had significantly lower BMD dis, BMC dis and prox, T-score dis, and prox (large effect > 0.8) than male non-smokers after SCI. Physical activity was a significant predictor (positive direction) for BMC prox (adjusted R2 = 0.56; p < 0.001). The predictor of interactions of physical activity and fat mass was significant for BMC dis (positive direction, adjusted R2 = 0.58; p < 0.001). It was also found that the predictor of interactions of four variables: physical activity, fat mass, hand grip strength (positive direction), and years of active smoking (negative direction) was significant for BMD dis (adjusted R2 = 0.58; p < 0.001). The predictor of interactions of age at injury (additive direction) and the number of cigarettes smoked per day (negative direction) was significant for T-score prox (adjusted R2 = 0.43; p < 0.001). Non-smoking physically active men after SCI had the most advantageous values of mean forearm BMD. Conclusion Rugby can be considered a sport that has a beneficial effect on forearm BMD. The physically active men after SCI had significantly higher bone parameters. Physical activity itself and in interactions with fat mass, hand grip strength (positive direction), and years of active smoking (negative direction) had a significant effect on bone health in non-paralyzed upper limbs. Active smoking may reduce the protective role of physical activity for bone health.
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Acute Effects of Nicotine on Physiological Responses and Sport Performance in Healthy Baseball Players. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19010515. [PMID: 35010774 PMCID: PMC8745004 DOI: 10.3390/ijerph19010515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/21/2021] [Accepted: 12/30/2021] [Indexed: 12/04/2022]
Abstract
There is interest in whether nicotine could enhance attention in sporting performance, but evidence on the acute effect of nicotine on physical response and sports performance in baseball players remains scant. This was an observational study to examine whether nicotine gum chewed before exercise could provide acute effects on physiological responses and sport performance. Accordingly, heart rate variability (HRV), saliva cotinine concentration and α-amylase activity, cognitive function, muscle strength, and baseball-hitting performance were measured. Thirteen healthy male non-smoker baseball players were recruited. Conducting two sequences with 7-day intervals, they chewed nicotine gum (nicotine group) or flavor-matched placebo gum (placebo group) for 30 min. HRV and saliva analyses were conducted before gum consumption (S1), after gum consumption (S2), and after test completion (S3). Cognitive, muscle strength, and baseball-hitting performance tests were performed after nicotine or placebo gum chewing. The outcomes of all assessed variables were compared within and between the groups. Significant changes in HRV, α-amylase, testosterone, and cortisol were observed in the nicotine group at S2 and S3 (p < 0.05). Compared with the placebo group, the nicotine group exhibited enhanced motor reaction times, grooved pegboard test (GPT) results on cognitive function, and baseball-hitting performance, and small effect sizes were noted (d = 0.47, 0.46 and 0.41, respectively). Nicotine could induce changes in endocrine and sympathetic nerve activity and enhance cognitive function and baseball-hitting performance. However, no increase in muscle strength was observed after nicotine intake.
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Everhart JS, Vajapey S, Kirven JC, Abouljoud MM, DiBartola AC, Wright B, Flanigan DC. Symptom Chronicity and Tobacco Use: Differences in Athletic and Nonathletic Candidates for Cartilage Surgery. Cartilage 2021; 12:448-455. [PMID: 31088145 PMCID: PMC8461163 DOI: 10.1177/1947603519847729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE To determine whether there are differences in symptomatic knee cartilage defects and rates of tobacco use among age-matched athletes versus nonathletes undergoing initial arthroscopic knee surgery who meet demographic and radiographic criteria for cartilage restoration surgery. DESIGN Age-matched athletes (n = 186) and nonathletes (n = 159) age 40 or less with a body mass index (BMI) of 35 kg/m2 or less (mean 26.8 SD 4.1) and <50% joint space narrowing on weight-bearing radiographs were included. All patients had a symptomatic Outerbridge grade 2 or higher cartilage defect visualized during knee arthroscopy. Relationship between athletic status and chronicity of knee symptoms prior to surgery and tobacco use status, cartilage defect Outerbridge grade, size, and location at time of surgery were characterized. RESULTS Nonathletes were more likely to smoke (P < 0.001) and had higher BMI (P = 0.005). Duration of symptoms prior to surgery was shorter among athletes (P < 0.001). Grade 4 defects were equally prevalent (P = 0.96) as were multicompartment grade 3-4 lesions (P = 0.12). Mean grade 3-4 defect size was similar in lateral (P = 0.96) and medial compartments (P = 0.82). There was a trend toward larger anterior compartment defects in nonathletes (P = 0.07). CONCLUSIONS Among age-matched athletes and nonathletes with symptomatic cartilage defects who meet demographic criteria for cartilage restoration, nonathletes were more likely to smoke and have a longer duration of symptoms prior to treatment. Athletes tended to present earlier but with similar size defects compared to nonathletes, supporting accelerated treatment of defects in athletes and caution toward allowing continued athletic participation in patients with known cartilage defects.
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Affiliation(s)
- Joshua S. Everhart
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Sravya Vajapey
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - James C. Kirven
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Moneer M. Abouljoud
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Alex C. DiBartola
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Brennan Wright
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - David C. Flanigan
- Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, OH, USA,David C. Flanigan, Sports Medicine Research Institute, The Ohio State University Wexner Medical Center, 2835 Fred Taylor Dr, Columbus, OH 43202, USA.
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17
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The Effects of Nicotine on Cortical Excitability After Exercise: A Double-Blind Randomized, Placebo-controlled, Crossover Study. J Clin Psychopharmacol 2021; 40:495-498. [PMID: 32701900 DOI: 10.1097/jcp.0000000000001246] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE The use of smokeless tobacco/nicotine products is common among athletes, but clear evidence for their positive or negative effect on sports performance is lacking. Nicotine is a psychoactive substance involved in numerous neuronal processes including cortical excitability. The aim of this study was to evaluate its effect on cortical excitability associated with aerobic exercise in nicotine-naive healthy volunteers. METHODS Ten nicotine-naive healthy volunteers were recruited for this double-blind, randomized, crossover study to compare the effect of snus (8 mg nicotine), an oral, smokeless tobacco product, to placebo on cortical excitability before and after aerobic exercise. Transcranial magnetic stimulation (TMS) was used to measure changes in corticomotor excitability (motor-evoked potentials, MEPs) and electromyography of leg muscles during maximal voluntary contractions (MVC) to assess changes in muscle contractions. Before and after aerobic exercise and with or without nicotine treatment, MEPs and MVCs were measured. RESULTS Analysis of TMS data showed lower motor cortex activation (lower MEP amplitude) after snus administration compared with placebo, whereas electromyography data showed no difference in muscle contraction between snus and placebo treatment. CONCLUSIONS These findings suggest a general reduction in cortical excitability, without no relevant effect on physical performance.
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18
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The Inclusion in WADA Prohibited List Is Not Always Supported by Scientific Evidence: A Narrative Review. Asian J Sports Med 2021. [DOI: 10.5812/asjsm.110753] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Context: Our goal was to review the current literature regarding the ability of substances that have recently been included in the WADA prohibited list (i.e., meldonium, trimetazidine, xenon, and cobalt) or in the monitoring program (i.e., ecdysterone and bemethyl) to enhance performance in athletes or cause adverse effects. Evidence Acquisition: To find out which studies led to the prohibition of the substances mentioned, we searched the PubMed database using keywords including the substances’ or methods’ names, as well as phrases related to various aspects of sports activities and health assessments of athletes. Results: The results obtained during our systematic literature search clearly indicate that there is a lack of scientific evidence supporting the impact of several substances prohibited by WADA (i.e., meldonium, trimetazidine, xenon, and cobalt) on athletic performance or on health in athletes. Conclusions: There is insufficient evidence that the previously mentioned substances have any performance enhancing potential. If left on the list, meldonium may be classified as a “specified substance” because of its wide availability and due to the fact that this drug that can be easily bought over the counter without a prescription.
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19
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Kasper AM, Close GL. Practitioner observations of oral nicotine use in elite sport: You snus you lose. Eur J Sport Sci 2021; 21:1693-1698. [PMID: 33263462 DOI: 10.1080/17461391.2020.1859621] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The elite sport environment is one where athletes strive to find a competitive edge, through improved recovery modalities, cognitive performance or physical capacity. Due to this, non-scientifically evidenced and/or pseudo-scientific alternative remedies are ever popular. Snus (an oral tobacco based product containing the highly addictive compound nicotine) is one alternative 'physical and psychological performance enhancer', purported to act as a 'mental and physical booster', 'relaxative' and even as an 'appetite suppressor'. Despite snus having serious adverse health effects, along with no proven benefit to physical or mental performance, observations by the authors working in professional sport, along with several reports in the mainstream media, would suggest that the use of snus in elite sport appears to be increasing. Perhaps most worrying, the use of snus has been reported to be prevalent within younger athletes. It is crucial that athletes are fully educated with regards to the health implications of snus and other oral tobacco-based products, whilst practitioners should be aware of its growing prevalence in sport with strategies in place to discourage its use.
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Affiliation(s)
- Andreas M Kasper
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
| | - Graeme L Close
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, UK
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Gossin M, Gmel G, Studer J, Saubade M, Clair C. The Association between Type and Intensity of Sport and Tobacco or Nicotine Use-A Cross-Sectional Study among Young Swiss Men. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17228299. [PMID: 33182675 PMCID: PMC7696790 DOI: 10.3390/ijerph17228299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 11/01/2020] [Accepted: 11/04/2020] [Indexed: 11/16/2022]
Abstract
The objective of this study was to assess the association between tobacco/nicotine use and type and intensity of sport. Data were drawn from the second follow-up of the Cohort Study on Substance Use Risk Factors. Young Swiss men completed a questionnaire about tobacco/nicotine use (cigarette, vaping, snus, snuff), type and intensity of sport and other demographic and medical variables. Among the 5414 included participants (mean age 25.5), 3434 (63.4%) reported regularly practicing a sport. They had a lower rate of cigarette smoking (32.3%) compared with participants not practicing a sport (44.6%) but a higher rate of snus use (15.0% vs. 10.0%). In adjusted models, individual-sport participants were less likely to use snus and snuff (OR = 0.63, 95% CI = 0.51–0.77 and OR = 0.73, 95% CI = 0.61–0.88), compared with team-sport participants. The association was inversed for vaping users (OR = 1.54, 95% CI = 1.03–2.30). Furthermore, participants who practiced high-intensity sports had a lower likelihood to smoke cigarettes (OR = 0.63, 95% CI = 0.52–0.78) compared with low-intensity sports. Our findings suggest that type and intensity of sport are associated with tobacco/nicotine use. Youth who practice an individual sport are less likely to use snus or snuff and more likely to vape compared with a team sport. This could help better target smoking prevention in young people
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Affiliation(s)
- Marine Gossin
- Department of Training, Research and Innovation, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1010 Lausanne, Switzerland;
- Correspondence:
| | - Gerhard Gmel
- Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, 1011 Lausanne, Switzerland; (G.G.); (J.S.)
- Research Department, Addiction Switzerland, 1001 Lausanne, Switzerland
- Centre for Addiction and Mental Health, Institute for Mental Health Policy Research, Toronto, ON M5S 2S1, Canada
- Department of Health and Social Sciences, University of the West of England, Bristol BS16 1QY, UK
| | - Joseph Studer
- Addiction Medicine, Department of Psychiatry, Lausanne University Hospital and University of Lausanne, 1011 Lausanne, Switzerland; (G.G.); (J.S.)
| | - Mathieu Saubade
- Swiss Olympic Medical Center, Division of Physical and Rehabilitation Medicine, University Hospital of Lausanne, 1011 Lausanne, Switzerland;
- Department of Prevention and Public Health, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1010 Lausanne, Switzerland
| | - Carole Clair
- Department of Training, Research and Innovation, Center for Primary Care and Public Health (Unisanté), University of Lausanne, 1010 Lausanne, Switzerland;
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Skranes JB, Kleiven Ø, Aakre KM, Skadberg Ø, Melberg TH, Omland T, Ørn S. High-Sensitivity Cardiac Troponin I and T Response Following Strenuous Activity is Attenuated by Smokeless Tobacco: NEEDED (North Sea Race Endurance Exercise Study) 2014. J Am Heart Assoc 2020; 9:e017363. [PMID: 32930023 PMCID: PMC7792397 DOI: 10.1161/jaha.120.017363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Background Use of snus, a smokeless tobacco product, is increasing in Scandinavia. Strenuous physical activity is associated with an acute increase in high‐sensitivity cardiac troponin (swhs‐cTn) concentrations. Current smoking is associated with lower hs‐cTn, but whether this also holds true for smokeless tobacco and whether tobacco affects the hs‐cTn response to exercise remain unknown. Methods and Results We measured hs‐cTnI and hs‐cTnT concentrations in 914 recreational athletes before and 3 and 24 hours after a 91‐km bicycle race. Self‐reported snus tobacco habits were reported as noncurrent (n=796) and current (n=118). The association between snus use and change in log‐transformed hs‐cTnI and hs‐cTnT concentrations (ie, the differences between concentrations at baseline and 3 hours and 24 hours ) were assessed by multivariable linear regression analysis. Concentrations of hs‐cTn at baseline were lower in current than in noncurrent snus users (hs‐cTnI median, 1.7 ng/L; Q1 to Q3: 1.6–2.3 versus 2.0 ng/L; Q1 to Q3: 1.6–3.2 [P=0.020]; and hs‐cTnT: median, 2.9 ng/L, Q1 to Q3: 2.9–3.5 versus 2.9 ng/L, Q1 to Q3: 2.9–4.3 [P=0.021]). In fully adjusted multivariable models, use of snus was associated with lower change in hs‐cTn concentrations from baseline to 3 hours (hs‐cTnI: −29% [P=0.002], hs‐cTnT: −18% [P=0.010]) and 24 hours (hscTnI: −30% [P=0.010], hs‐cTnT −19%, [P=0.013]). Conclusions Resting hs‐cTn concentrations are lower and the exercise‐induced cardiac troponin response is attenuated in current users of smokeless tobacco compared with nonusers. Further insight into the pathophysiological processes underlying the attenuated cardiac troponin response to exercise in tobacco users is needed. Registration URL: https://www.clinicaltrials.gov; Unique identifier: NCT02166216.
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Affiliation(s)
- Julia Brox Skranes
- Department of Cardiology Akershus University Hospital Lørenskog Norway.,Institute of Clinical Medicine University of Oslo Norway
| | - Øyunn Kleiven
- Cardiology Department Stavanger University Hospital Stavanger Norway
| | - Kristin Moberg Aakre
- Department of Medical Biochemistry and Pharmacology Haukeland University Hospital Bergen Norway.,Department of Clinical Science University of Bergen Norway
| | - Øyvind Skadberg
- Department of Biochemistry Stavanger University Hospital Stavanger Norway
| | - Tor H Melberg
- Cardiology Department Stavanger University Hospital Stavanger Norway
| | - Torbjørn Omland
- Department of Cardiology Akershus University Hospital Lørenskog Norway.,Institute of Clinical Medicine University of Oslo Norway
| | - Stein Ørn
- Cardiology Department Stavanger University Hospital Stavanger Norway.,Department of Electrical Engineering and Computer Science University of Stavanger Norway
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Effect of Sample Storage Conditions on Measurements of Salivary Cotinine Levels. Metabolites 2020; 10:metabo10090365. [PMID: 32911758 PMCID: PMC7569849 DOI: 10.3390/metabo10090365] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/21/2020] [Accepted: 09/06/2020] [Indexed: 11/17/2022] Open
Abstract
Information on smoking exposure obtained with self-reports may be inaccurate. Cotinine has a large half-life and its salivary levels correlate well with plasmatic levels. The influence of storage conditions on the validity and precision of salivary cotinine assessments has rarely been evaluated. Here, smokers donated saliva samples, which were sent for immediate analysis, mail posting, storage at 4 °C for 30 or 90 days, or storage at −20 °C for 30 or 90 days. Cotinine levels were determined using enzyme-linked immune-sorbent assay. Agreement of cotinine level measurements was assessed using Bland-Altman analyses. Average age (years), duration of smoking (years) and number of cigarettes smoked (/day) were 55.4 (±SD 9.4), 35.1 (±SD 11.3), and 15.3 (±SD 7.6). The mean immediate cotinine level was 457 ng/mL (range 11.3 to 1318 ng/mL). Mean cotinine levels in samples analyzed after delay ranged between 433 ng/mL (−20 °C 30 days) and 468 ng/mL (4 °C 30 days). A dose-response gradient was observed in the relationship between salivary cotinine level and self-reported smoking status. A good agreement between cotinine levels for all storage conditions compared with immediate analysis was observed, with average differences ranging from −11 to 24 ng/mL. Cotinine levels remained stable regardless of the tested condition. The stability of salivary cotinine may enable samples to be obtained in difficult-to-reach areas, reduce study costs, and improve the validity of the information on exposure to smoking.
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O'Sullivan B, Scully P, Curtin RJ, Plant BJ. Response to: Smoker and smokeless tobacco user athletes: dual users? QJM 2020:hcaa221. [PMID: 32649761 DOI: 10.1093/qjmed/hcaa221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 06/30/2020] [Indexed: 11/13/2022] Open
Affiliation(s)
- B O'Sullivan
- Department of Cardiology, Cork University Hospital, Cork, Ireland
| | - P Scully
- Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - R J Curtin
- Department of Cardiology, Cork University Hospital, Cork, Ireland
| | - B J Plant
- Department of Respiratory, Cork University Hospital, Cork, Ireland
- HRB Clinical Research Facility, University College Cork, Cork, Ireland
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Zandonai T, Chiamulera C. Smoker and smokeless tobacco user athletes: dual users? QJM 2020:hcaa222. [PMID: 32649764 DOI: 10.1093/qjmed/hcaa222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 06/30/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Thomas Zandonai
- Department of Clinical Pharmacology, Paediatrics and Organic Chemistry, Miguel Hernández University of Elche, Elche, Spain
- Department of Sport Sciences, Sports Research Centre, Miguel Hernández University of Elche, Elche, Spain
| | - Cristiano Chiamulera
- Neuropsychopharmacology Lab, Department of Diagnostic and Public Health, University of Verona, Verona, Italy
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Mündel T. An anti-doping perspective on nicotine detection in the peri-exercise period in a cohort of trained male cyclists. Curr Res Physiol 2020; 2:30-33. [PMID: 34746814 PMCID: PMC8562138 DOI: 10.1016/j.crphys.2020.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/23/2020] [Accepted: 04/23/2020] [Indexed: 11/13/2022] Open
Abstract
The purpose of the present study was to investigate the detection of nicotine in athletes: before vs. after 90 min exercise, and in serum vs. urine. Serum [cotinine] was not different before vs. after exercise (31 ± 14 vs. 29 ± 14 ng mL−1, P = 0.43), although urine [cotinine] measured greater than serum (148 ± 142 vs. 31 ± 14 ng mL−1, P < 0.01). Urinary [nicotine] measured greater than [cotinine] (790 ± 1176 vs. 148 ± 128 ng mL−1, P = 0.05), which significantly correlated (r = 0.57, P = 0.04). These results indicate that urine [cotinine] concentration is the optimal biomarker to detect nicotine use in athletes.
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Affiliation(s)
- Toby Mündel
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
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Young SE, Henderson CA, Couperus KS. The Effects of Electronic Nicotine Delivery Systems on Athletes. Curr Sports Med Rep 2020; 19:146-150. [PMID: 32282460 DOI: 10.1249/jsr.0000000000000705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The rapid rise in popularity of Electronic Nicotine Delivery Systems (ENDS), or vaping, has not eluded the athletic population. Increasing use of youth sports participants, as well as collegiate and professionals, means sports medicine providers and coaches alike should be familiar with the effects of these devices. Current evidence demonstrates an impact on both the cardiovascular and pulmonary systems. These effects appear less significant than smoking tobacco cigarettes, but the extent and longevity of the consequences of ENDS use is unclear. Mechanisms for recovery, such as sleep and injury healing, also are affected. Lastly, the emergence of life-threatening pulmonary disease associated with ENDS use may have devastating effects on an athlete. This article will highlight the recent literature on the impact of ENDS on athletes and athletic performance, as well as the potentially life-threatening consequences of use.
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Roach SP, Houston MN, Peck KY, Svoboda SJ, Kelly TF, Malvasi SR, McGinty GT, Campbell DE, Cameron KL. The Influence of Self-Reported Tobacco Use on Baseline Concussion Assessments. Mil Med 2020; 185:e431-e437. [PMID: 31603220 DOI: 10.1093/milmed/usz352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION Baseline symptom, balance, and neurocognitive scores have become an integral piece of the concussion management process. Factors such as sleep, learning disorders, fitness level, and sex have been linked to differences in performance on baseline assessments; however, it is unclear how tobacco use may affect these scores. The objective of this study was to compare baseline concussion assessment scores between service academy cadets who use and do not use tobacco. METHODS Cadets completed a standard battery of concussion baseline assessments per standard of care and were classified into two groups: tobacco users (n = 1,232) and nonusers (n = 5,922). Dependent variables included scores on the Balance Error Scoring System, Standardized Assessment of Concussion, Immediate Post-Concussion Assessment and Cognitive Testing (ImPACT), Brief Symptom Inventory-18, and Brief Sensation Seeking Scale (BSSS). Separate Mann-Whitney U-tests were used to compare all baseline assessment scores between groups with an adjusted P-value < 0.004. RESULTS Cadets that used tobacco performed significantly worse on the impulse control (P < 0.001) section of the ImPACT, reported greater ImPACT symptom severity scores (P < 0.001), and were more likely to take risks as measured by the BSSS (P < 0.001). No differences were detected for Balance Error Scoring System, Standardized Assessment of Concussion, Brief Symptom Inventory-18, and Sport Concussion Assessment Tool-3 symptom scores, verbal memory, visual memory, visual-motor speed, or reaction time on the ImPACT (P > 0.004). CONCLUSIONS Tobacco users performed significantly worse than tobacco nonusers on the impulse control section of the ImPACT, reported greater symptom severity scores on the ImPACT, and were more likely to take risks as measured by the BSSS. Despite statistical significance, these results should be interpreted with caution, as the overall effect sizes were very small. Future research should examine the influence of tobacco use on recovery post-concussion.
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Affiliation(s)
- Sean P Roach
- Keller Army Community Hospital, 900 Washington Road, West Point, NY 10996
| | - Megan N Houston
- Keller Army Community Hospital, 900 Washington Road, West Point, NY 10996
| | - Karen Y Peck
- United States Military Academy, 606 Thayer Road, West Point, NY 10996
| | - Steven J Svoboda
- MedStar Health, 1120 20th Street Northwest, Suite 115, Washington, DC 20036
| | - Tim F Kelly
- United States Military Academy, 606 Thayer Road, West Point, NY 10996
| | - Steven R Malvasi
- Keller Army Community Hospital, 900 Washington Road, West Point, NY 10996
| | - Gerald T McGinty
- United States Air Force Academy, 2355 Faculty Drive, Suite 1N207, USAFA, CO 80840
| | | | - Kenneth L Cameron
- Keller Army Community Hospital, 900 Washington Road, West Point, NY 10996
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Zandonai T, Chiamulera C. The importance of nicotine use among winter sports athletes especially in skiers. J Sci Med Sport 2019; 22:1072. [DOI: 10.1016/j.jsams.2019.05.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 05/30/2019] [Accepted: 05/30/2019] [Indexed: 12/16/2022]
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Đorđević Šaranović S, Vićić J, Pešić I, Tomović M, Batinić Đ, Antić M, Tadic M, Mazić S. The Influence of Tobacco Use on Pulmonary Function in Elite Athletes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16193515. [PMID: 31547175 PMCID: PMC6802005 DOI: 10.3390/ijerph16193515] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 09/08/2019] [Accepted: 09/20/2019] [Indexed: 01/30/2023]
Abstract
Objective: We sought to investigate the prevalence of smoking and lung function in the large cohort of elite athletes. Methods: This cross-sectional study included 804 athletes competing at international level who were consecutively examined from January to December 2017. Elite athletes were classified in four groups of sport disciplines (skill, power, endurance and mixed): skill (n = 141), power (n = 107), endurance (n = 105) and mixed sport disciplines (n = 451). All participants underwent pre-participation screening, including spirometry. Results: Study included 745 (92.7%) non-smokers, 20 (2.5%) former smokers and 39 (4.8%) active smokers. The percentage of body fat was higher and the percentage of muscle was lower in active smokers than in non-smokers and former smokers. Active smokers were more prevalent among skill and mixed than in power and endurance sports. FEV1 and FVC, as well as FEV1/FVC ratio, were significantly lower in active smokers than in non-smokers. There was no significant difference in PEF assessed in absolute values and in percentages. Forced expiratory flows, evaluated at the usual intervals (25%, 50% and 75% of FVC), were significantly lower in active smokers than in non-smokers. FEV1 and MEF25 were the lowest among active smokers in the skill sport group, whereas FEV1/FVC, MEF50 and MEF25 were the lowest among active smokers in the power sport group. In mixed and endurance disciplines there was no difference in pulmonary function between non-smokers, former smokers and active smokers. Conclusions: Pulmonary function was reduced in active smokers and these differences were the most prominent in skill and power sports. The percentage of body fat was the highest and percentage of muscle was the lowest in active smokers.
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Affiliation(s)
| | - Jelisaveta Vićić
- Center for Sports Medicine and Exercise Therapy, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.V.); (M.T.); (S.M.)
| | - Ika Pešić
- Clinic for Pulmonary Diseases—Clinical Center of Serbia, 11000 Belgrade, Serbia;
| | - Milena Tomović
- Center for Sports Medicine and Exercise Therapy, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.V.); (M.T.); (S.M.)
| | - Đorđe Batinić
- Serbian Institute of Sport and Sports Medicine, 11000 Belgrade, Serbia; (S.Đ.Š.); (Đ.B.); (M.A.)
| | - Milena Antić
- Serbian Institute of Sport and Sports Medicine, 11000 Belgrade, Serbia; (S.Đ.Š.); (Đ.B.); (M.A.)
| | - Marijana Tadic
- Department of Internal Medicine and Cardiology, Augustenburger Platz 1, Campus Virchow-Klinikum, Charité—Universitätsmedizin Berlin, 13353 Berlin, Germany
- Correspondence: ; Tel.: +49-176-3236-0011
| | - Sanja Mazić
- Center for Sports Medicine and Exercise Therapy, Faculty of Medicine, University of Belgrade, 11000 Belgrade, Serbia; (J.V.); (M.T.); (S.M.)
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McDuff D, Stull T, Castaldelli-Maia JM, Hitchcock ME, Hainline B, Reardon CL. Recreational and ergogenic substance use and substance use disorders in elite athletes: a narrative review. Br J Sports Med 2019; 53:754-760. [PMID: 31097457 DOI: 10.1136/bjsports-2019-100669] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2019] [Indexed: 11/04/2022]
Abstract
BACKGROUND Substances from various classes may be used for recreational purposes, self-treatment or to boost performance. When substance use shifts from occasional to regular, heavy or hazardous use, positive and negative effects can develop that vary by substance class and athlete. Regular use of recreational or performance enhancing substances can lead to misuse, sanctions or use disorders. OBJECTIVE To review the prevalence, patterns of use, risk factors, performance effects and types of intervention for all classes of recreational and performance enhancing substances in elite athletes by sport, ethnicity, country and gender. METHODS A comprehensive search was conducted to identify studies that compared the prevalence and patterns of substance use, misuse and use disorders in elite athletes with those of non-athletes and provided detailed demographic and sport variations in reasons for use, risk factors and performance effects for each main substance class. RESULTS Alcohol, cannabis, tobacco (nicotine) and prescribed opioids and stimulants are the most commonly used substances in elite athletes, but generally used at lower rates than in non-athletes. In contrast, use/misuse rates for binge alcohol, oral tobacco, non-prescription opioids and anabolic-androgenic steroids are higher among athletes than non-athletes, especially in power and collision sports. Cannabis/cannabinoids seem to have replaced nicotine as the second most commonly used substance. CONCLUSIONS Substance use in elite athletes varies by country, ethnicity, gender, sport and competitive level. There are no studies on substance use disorder prevalence in elite male and female athletes and few studies with direct comparison groups.
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Affiliation(s)
- David McDuff
- Psychiatry, University of Maryland School of Medicine, Baltimore, Maryland, USA .,MD Sports Performance, Ellicott, Maryland, USA
| | - Todd Stull
- Athletics, University of Nebraska-Lincoln University Health Center, Lincoln, Nebraska, USA
| | - João Mauricio Castaldelli-Maia
- Department of Psychiatry, Medical School, University of São Paulo, São Paulo, Brazil.,Department of Neuroscience, Medical School, Fundação do ABC, Santo André, Brazil
| | - Mary E Hitchcock
- Ebling Library for the Health Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Brian Hainline
- National Collegiate Athletic Association (NCAA), Indianapolis, Indiana, USA
| | - Claudia L Reardon
- Department of Psychiatry, University of Wisconsin Madison School of Medicine and Public Health, Madison, Wisconsin, USA
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31
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Mental health in elite athletes: International Olympic Committee consensus statement (2019). Br J Sports Med 2019; 53:667-699. [DOI: 10.1136/bjsports-2019-100715] [Citation(s) in RCA: 349] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/03/2019] [Indexed: 11/03/2022]
Abstract
Mental health symptoms and disorders are common among elite athletes, may have sport related manifestations within this population and impair performance. Mental health cannot be separated from physical health, as evidenced by mental health symptoms and disorders increasing the risk of physical injury and delaying subsequent recovery. There are no evidence or consensus based guidelines for diagnosis and management of mental health symptoms and disorders in elite athletes. Diagnosis must differentiate character traits particular to elite athletes from psychosocial maladaptations.Management strategies should address all contributors to mental health symptoms and consider biopsychosocial factors relevant to athletes to maximise benefit and minimise harm. Management must involve both treatment of affected individual athletes and optimising environments in which all elite athletes train and compete. To advance a more standardised, evidence based approach to mental health symptoms and disorders in elite athletes, an International Olympic Committee Consensus Work Group critically evaluated the current state of science and provided recommendations.
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Mündel T, Houltham SD, Barnes MJ, Stannard SR. Nicotine Supplementation Does Not Influence Performance of a 1h Cycling Time-Trial in Trained Males. Front Physiol 2019; 10:292. [PMID: 30971941 PMCID: PMC6444171 DOI: 10.3389/fphys.2019.00292] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 03/06/2019] [Indexed: 01/25/2023] Open
Abstract
The use of nicotine amongst professional and elite athletes is high, with anecdotal evidence indicating increased prevalence amongst cycling sports. However, previous investigations into its effects on performance have not used high-validity or -reliability protocols nor trained cyclists. Therefore, the present study determined whether nicotine administration proved ergogenic during a ∼1 h self-paced cycling time-trial (TT). Ten well-trained male cyclists (34 ± 9 years; 71 ± 8 kg; O2max: 71 ± 6 ml ⋅ kg−1 ⋅ min−1) completed three work-dependent TT following ∼30 min administration of 2 mg nicotine gum (GUM), ∼10 h administration of 7 mg ⋅ 24 h−1 nicotine patch (PAT) or color- and flavor-matched placebos (PLA) in a randomized, crossover, and double blind design. Measures of nicotine’s primary metabolite (cotinine), core body temperature, heart rate, blood biochemistry (pH, HCO3−, La−) and Borg’s rating of perceived exertion (RPE) accompanied performance measures of time and power output. Plasma concentrations of cotinine were highest for PAT, followed by GUM, then PLA, respectively (p < 0.01). GUM and PAT resulted in no significant improvement in performance time compared to PLA (62.9 ± 4.1 min, 62.6 ± 4.5 min, and 63.3 ± 4.1 min, respectively; p = 0.73), with mean power outputs of 264 ± 31, 265 ± 32, and 263 ± 33 W, respectively (p = 0.74). Core body temperature was similar between trials (p = 0.33) whilst HR averaged 170 ± 10, 170 ± 11, and 171 ± 11 beats ⋅ min−1 (p = 0.60) for GUM, PAT, and PLA, respectively. There were no differences between trials for any blood biochemistry (all p > 0.46) or RPE with mean values of 16.7 ± 0.9, 16.8 ± 0.7, and 16.8 ± 0.8 (p = 0.89) for GUM, PAT, and PLA, respectively. In conclusion: (i) nicotine administration, whether via gum or transdermal patch, did not exert an ergogenic or ergolytic effect on self-paced cycling performance of ∼1 h; (ii) systemic delivery of nicotine was greatest when using a transdermal patch; and (iii) nicotine administration did not alter any of the psycho-physiological measures observed.
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Affiliation(s)
- Toby Mündel
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
| | - Stuart D Houltham
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
| | - Matthew J Barnes
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
| | - Stephen R Stannard
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
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Kennedy DO. Phytochemicals for Improving Aspects of Cognitive Function and Psychological State Potentially Relevant to Sports Performance. Sports Med 2019; 49:39-58. [PMID: 30671903 PMCID: PMC6445817 DOI: 10.1007/s40279-018-1007-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Subjective alertness and optimal cognitive function, including in terms of attention, spatial/working memory and executive function, are intrinsic to peak performance in many sports. Consumption of a number of plant-derived 'secondary metabolite' phytochemicals can modulate these psychological parameters, although there is a paucity of evidence collected in a sporting context. The structural groups into which these phytochemicals fall-phenolics, terpenes and alkaloids-vary in terms of the ecological roles they play for the plant, their toxicity and the extent to which they exert direct effects on brain function. The phenolics, including polyphenols, play protective roles in the plant, and represent a natural, benign component of the human diet. Increased consumption has been shown to improve cardiovascular function and is associated with long-term brain health. However, whilst short-term supplementation with polyphenols has been shown to consistently modulate cerebral blood-flow parameters, evidence of direct effects on cognitive function and alertness/arousal is currently comparatively weak. Terpenes play both attractant and deterrent roles in the plant, and typically occur less frequently in the diet. Single doses of volatile monoterpenes derived from edible herbs such as sage (Salvia officinalis/lavandulaefolia) and peppermint (Mentha piperita), diterpene-rich Ginkgo biloba extracts and triterpene-containing extracts from plants such as ginseng (Panax ginseng/quinquefolius) and Bacopa monnieri have all been shown to enhance relevant aspects of cognitive function and alertness. The alkaloids play toxic defensive roles in the plant, including via interference with herbivore brain function. Whilst most alkaloids are inappropriate in a sporting context due to toxicity and legal status, evidence suggests that single doses of nicotine and caffeine may be able to enhance relevant aspects of cognitive function and/or alertness. However, their benefits may be confounded by habituation and withdrawal effects in the longer term. The efficacy of volatile terpenes, triterpene-rich extracts and products combining low doses of caffeine with other phytochemicals deserves more research attention.
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Affiliation(s)
- David O Kennedy
- Brain, Performance and Nutrition Research Centre, Northumbria University, Newcastle-upon-Tyne, NE1 8ST, UK.
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Thevis M, Kuuranne T, Geyer H. Annual banned-substance review: Analytical approaches in human sports drug testing. Drug Test Anal 2019; 11:8-26. [DOI: 10.1002/dta.2549] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 11/18/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Mario Thevis
- Center for Preventive Doping Research - Institute of Biochemistry; German Sport University Cologne; Cologne Germany
- European Monitoring Center for Emerging Doping Agents; Cologne Germany
| | - Tiia Kuuranne
- Swiss Laboratory for Doping Analyses; University Center of Legal Medicine, Genève and Lausanne, Centre Hospitalier Universitaire Vaudois and University of Lausanne; Epalinges Switzerland
| | - Hans Geyer
- Center for Preventive Doping Research - Institute of Biochemistry; German Sport University Cologne; Cologne Germany
- European Monitoring Center for Emerging Doping Agents; Cologne Germany
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Zandonai T, Tam E, Bruseghini P, Capelli C, Baraldo M, Chiamulera C. Exercise performance increase in smokeless tobacco-user athletes after overnight nicotine abstinence. Scand J Med Sci Sports 2018; 29:430-439. [PMID: 30387193 DOI: 10.1111/sms.13333] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 10/25/2018] [Indexed: 01/26/2023]
Abstract
The use of nicotine administered through smokeless tobacco (snus) has increased among athletes. The purpose of this study was to investigate the ergogenic effects of snus on aerobic performance during exercise until exhaustion in athletes after abstinence or satiety nicotine conditions. The study utilized a randomized, controlled, within-subject design experiment. Sixteen male snus-user athletes completed an exercise until exhaustion at a constant load of their 80% of V ˙ O 2 max (calculated by a maximal incremental test) in two separate sessions, corresponding to nicotine conditions: 12-hour overnight abstinence and satiety. A portion of 1 g of snus (~8 mg/g of nicotine) was administered 25 minutes before each experimental test. In each session, time to exhaustion (TTE), global rating of perceived exertion, cardiovascular and metabolic responses, and muscle and cerebral oxygenation were measured. Nicotine and cotinine analysis confirmed session conditions (abstinence or satiety). Snus induced a significant increase (+13.1%) of TTE following abstinence (24.1 ± 10.7 minutes) compared to satiety condition (20.9 ± 8.0 minutes; P = 0.0131). The baseline values revealed that abstinence of snus induced significant increase in the oxygenation of the muscular tissues (+4%), in metabolic values and in cardiovascular parameters, when compared to satiety condition. Our results indicate an increase of exercise performance (+13.1% TTE) due to snus administration in an abstinence condition. Considering that twelve hours of abstinence from snus-contained nicotine affected metabolic, cardiovascular and muscular tissue oxygenation, we suggest that snus administration at test time might relieve these withdrawal changes and yield an increase in time to exhaustion.
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Affiliation(s)
- Thomas Zandonai
- Mind, Brain and Behaviour Research Center, Department of Experimental Psychology, Faculty of Psychology, University of Granada, Granada, Spain.,Neuropsychopharmacology Lab., Department of Diagnostic and Public Health, University of Verona, Italy
| | - Enrico Tam
- School of Exercise and Sport Science, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Paolo Bruseghini
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Carlo Capelli
- Department of Physical Performances, Norwegian School of Sport Sciences, Oslo, Norway
| | - Massimo Baraldo
- Department of Experimental and Clinical Medical Sciences, University of Udine, Udine, Italy
| | - Cristiano Chiamulera
- Neuropsychopharmacology Lab., Department of Diagnostic and Public Health, University of Verona, Italy
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Zandonai T, Chiamulera C, Mancabelli A, Falconieri D, Diana M. A Preliminary Investigation on Smokeless Tobacco Use and Its Cognitive Effects Among Athletes. Front Pharmacol 2018; 9:216. [PMID: 29593541 PMCID: PMC5857588 DOI: 10.3389/fphar.2018.00216] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 02/27/2018] [Indexed: 01/27/2023] Open
Abstract
Introduction: Among athletes, an increasing use of nicotine via smokeless tobacco has been reported. However, there are currently unanswered questions about whether the use by athletes is due to nicotine’s addictive properties and/or to benefits in physical and cognitive performance (e.g., decision-making). In this original article we reported about, (i) snus-induced reinforcing effects among snus-user athletes (Survey) and (ii) the effects of snus on the Iowa Gambling Task (IGT) in snus-user skiers (Experimental study). IGT is an experimental neuropsychological task that has been previously used on athletes and addicts to test decision-making. Methods: Survey: data were collected with the modified Cigarette Evaluation Questionnaire (mCEQ) that was administered to 61 winter sport athlete snus-users in Northern Italy. Experimental study: IGT data included: amount of money earned, number of choices from advantageous and disadvantageous decks and overall net score. Eighteen male snus-users were tested under satiety or after 12-h abstinence conditions according to a crossover design. Results: Survey: the comparison between occasional vs. regular snus-users showed a statistically significant difference in satisfaction (P = 0.0088), calm (P = 0.0252), and enjoyment (P = 0.0001) mCEQ items suggesting a snus intake/effect relationship. Experimental study: significantly higher IGT net scores were found during the first 20 choice cards after abstinence vs. satiety conditions (P = 0.0024). Conclusion: In the Survey, regular snus use induces greater satisfaction and psychological reward than occasional use. In the Experimental study, snus intake might produce an early and transient cognitive improvement on IGT in abstinent snus-users, presumably acting as a withdrawal relief.
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Affiliation(s)
- Thomas Zandonai
- Mind, Brain and Behavior Research Center, Department of Experimental Psychology, University of Granada, Granada, Spain.,Neuropsychopharmacology Laboratory, Department of Diagnostic and Public Health, University of Verona, Verona, Italy
| | - Cristiano Chiamulera
- Neuropsychopharmacology Laboratory, Department of Diagnostic and Public Health, University of Verona, Verona, Italy
| | - Alberto Mancabelli
- Department of Neurosciences, Biomedicine and Movement Sciences, School of Exercise and Sport Science, University of Verona, Verona, Italy
| | - Danilo Falconieri
- Department of Animal Biology and Ecology, University of Cagliari, Cagliari, Italy
| | - Marco Diana
- "G.Minardi" Laboratory of Cognitive Neuroscience, Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
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Mündel T, Olfert IM. Nicotine and exercise performance: another tool in the arsenal or curse for anti-doping? Eur J Appl Physiol 2018; 118:679-680. [PMID: 29484483 DOI: 10.1007/s00421-018-3830-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 02/21/2018] [Indexed: 11/24/2022]
Affiliation(s)
- Toby Mündel
- School of Sport, Exercise and Nutrition, Massey University, Palmerston North, New Zealand
| | - I Mark Olfert
- Division of Exercise Physiology, Toxicology Working Group, Department of Physiology, Pharmacology and Neuroscience, West Virginia University School of Medicine, One Medical Center Dr, PO Box 9227, Morgantown, WV, 26506, USA.
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Johnston R, Crowe M, Doma K. Effect of nicotine on repeated bouts of anaerobic exercise in nicotine naïve individuals. Eur J Appl Physiol 2018; 118:681-689. [DOI: 10.1007/s00421-018-3819-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 01/29/2018] [Indexed: 12/13/2022]
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