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Thomas D, Shabeek AA, Ahmed H, Mohammed M, Kawaguchi-Suzuki M, Anderson A, Gopakumar A, Alhosani R, Khalifa S, Mottram D. Impact of an educational flyer and sensitization on performance-enhancement attitudes of bodybuilders in United Arab Emirates. F1000Res 2024; 12:208. [PMID: 38533422 PMCID: PMC10964001 DOI: 10.12688/f1000research.130700.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/12/2024] [Indexed: 09/01/2023] Open
Abstract
Background A high proportion of bodybuilders use supplements to improve performance, with some turning to prohibited substances and methods. The attitudes of bodybuilders towards performance enhancement may be gauged through surveys such as the Performance Enhancement Attitude Scales (PEAS). Educational interventions are recommended as part of anti-doping measures. The objective of this project was to assess the impact of a pharmacy-led intervention using an antidoping educational flyer and the performance enhancement attitude scale to measure the attitude of bodybuilders in the United Arab Emirates (UAE). Methods The PEAS eight-item short form questionnaire was administered to male bodybuilders in the UAE. The PEAS was conducted before and after administration of an educational flyer concerning the problems associated with supplement use among bodybuilders. The Wilcoxon Signed-Rank and Kruskal Wallis tests were used for data analysis. Results A total of 218 bodybuilders, who reported taking dietary supplements, filled out the survey both pre and post viewing the antidoping educational flyer. A difference was observed between the full-time professional bodybuilders, students, and part-time bodybuilders with other primary occupations (p-value <0.05). In addition, PEAS score decreased among the study population for all eight PEAS items (p-value <0.05). Conclusions The pharmacy-led intervention using an antidoping educational flyer and sensitization by PEAS achieved more favorable scores, suggesting a significant shift of opinion toward avoiding use of performance enhancing substances among the bodybuilder study population. More research is required on sustaining the attitude and demonstrating the impact on doping behavior.
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Affiliation(s)
- Dixon Thomas
- College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | | | - Hala Ahmed
- College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | - Malak Mohammed
- College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | | | | | - Aji Gopakumar
- Department of Research, Emirates Health Services, Dubai, United Arab Emirates
| | | | - Sherief Khalifa
- College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | - David Mottram
- Pharmacy and pharmaceutical science, Liverpool John Moores University, Liverpool, UK
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Jiménez-Martínez P, Alix-Fages C, Helms ER, Espinar S, González-Cano H, Baz-Valle E, Janicijevic D, García-Ramos A, Colado JC. Dietary supplementation habits in international natural bodybuilders during pre-competition. Heliyon 2024; 10:e26730. [PMID: 38434302 PMCID: PMC10907779 DOI: 10.1016/j.heliyon.2024.e26730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 02/16/2024] [Accepted: 02/19/2024] [Indexed: 03/05/2024] Open
Abstract
Bodybuilding is characterized by high-rates of sport supplementation. This is the first study to compare the supplementation patterns of winners (WB) and non-winners (NWB) among international natural bodybuilders during contest preparation. Fifty-six natural bodybuilders (5 women) (age = 28.85 ± 8.03 years; final body mass = 71.50 ± 10.28 kg), 19 WB (athletes who had achieved victory in an official natural bodybuilding championship at least once) and 37 NWB (athletes who never achieved victory), from 18 countries (55.36% from Spain) responded to this cross-sectional online survey related to their nutritional habits, strategies and supplementation practices. WB were significantly older (p = 0.024), completed more competitive seasons (p = 0.027) and participated in more competitions in the last contest year (p = 0.011). There were no significant differences between WB and NWB for years training for bodybuilding (p = 0.055), weeks of dieting for competition (p = 0.392), and body weight at the start (p = 0.553) and end (p = 0.330) of the season. Beverage and supplement consumption, purchasing patterns, and information sources did not differ between groups (p > 0.05). In conclusion, natural bodybuilding WB tended to be older and had more competitive experience, but shared similar supplementation protocols to NWB. Athletes' supplementation patterns were influenced by different sources of information. However, these natural bodybuilders mainly purchased their supplements through the internet without guidance from a coach or dietitian.
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Affiliation(s)
- Pablo Jiménez-Martínez
- ICEN Institute, Madrid, Spain
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
| | - Carlos Alix-Fages
- ICEN Institute, Madrid, Spain
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
- Applied Biomechanics and Sport Technology Research Group, Autonomous University of Madrid, Madrid, Spain
| | - Eric R. Helms
- Sport Performance Research Institute New Zealand (SPRINZ) at AUT Millennium, Auckland University of Technology, Auckland 0632, New Zealand
- Florida Atlantic University, Department of Exercise Science and Health Promotion, Muscle Physiology Laboratory, Boca Raton, FL, USA
| | - Sergio Espinar
- ICEN Institute, Madrid, Spain
- Faculty of Health Sciences, Catholic University of Murcia, 30107 Murcia, Spain
| | | | - Eneko Baz-Valle
- ICEN Institute, Madrid, Spain
- University of País Vasco, Faculty of Physical Activity and Sports Sciences, Spain
| | - Danica Janicijevic
- Faculty of Sports Science, Ningbo University, Ningbo, China
- Research Academy of Human Biomechanics, The Affiliated hospital of medical school of Ningbo University, Ningbo University, Ningbo, China
| | - Amador García-Ramos
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Department of Sports Sciences and Physical Conditioning, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Juan C. Colado
- Research Group in Prevention and Health in Exercise and Sport (PHES), University of Valencia, Valencia, Spain
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Piplios O, Yager Z, McLean SA, Griffiths S, Doley JR. Appearance and performance factors associated with muscle building supplement use and favourable attitudes towards anabolic steroids in adolescent boys. Front Psychol 2023; 14:1241024. [PMID: 37744597 PMCID: PMC10516554 DOI: 10.3389/fpsyg.2023.1241024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 08/14/2023] [Indexed: 09/26/2023] Open
Abstract
Introduction The demand for appearance and performance enhancing substances, including muscle building supplements and anabolic androgenic steroids, is increasing in Australia. However, little is known about the associations between appearance and performance-based factors and appearance and performance enhancing substances (APES), particularly among adolescent boys. This study sought to examine (a) the prevalence of muscle building supplement use in a sample of adolescent boys and (b) how both performance and appearance factors relate to muscle building supplement use and favourable attitudes towards anabolic androgenic steroids in this sample. Method N = 488 adolescent boys aged 13-16 (Mage = 14.59) from nine Australian schools completed measures of supplement use, favourable attitudes towards using steroids, muscle dissatisfaction, body fat dissatisfaction, mesomorphic ideal internalisation, weight training, and sports participation. Hierarchical logistic regressions were used to examine cross-sectional correlates of muscle building supplement use and favourable attitudes towards using anabolic androgenic steroids. Results In the past three months, 12.7% of the sample had used muscle building supplements. Both appearance and performance-related factors - mesomorphic ideal internalisation and weight training - were related to muscle building supplement use. Only one appearance-related factor - body dissatisfaction - was related to favourable attitudes towards anabolic androgenic steroids. Discussion The findings from this study are important as they may help to guide intervention strategies regarding appearance and performance enhancing substance use by Australian adolescent boys, with the ultimate goal of ensuring this population's safety.
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Affiliation(s)
- Olivia Piplios
- College of Health and Biomedicine, Victoria University, Melbourne, VIC, Australia
| | - Zali Yager
- The Embrace Collective, Adelaide, SA, Australia
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - Siân A. McLean
- Department of Psychology, Counselling, and Therapy, La Trobe University, Melbourne, VIC, Australia
| | - Scott Griffiths
- Melbourne School of Psychological Sciences, University of Melbourne, Parkville, VIC, Australia
| | - Jo R. Doley
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
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4
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Perceived Body Image towards Disordered Eating Behaviors and Supplement Use: A Study of Mauritian Gym-Goers. PSYCH 2023. [DOI: 10.3390/psych5010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Purpose: Individuals with body image distortions tend to develop an obsession with calorie intake and weight, leading to compounded coping strategies such as modified eating behaviors, supplement use, and excessive exercise. In the local context, little is known about the equation connecting body image to improper eating behaviors and other potential coping mechanisms. This study primarily aims at critically identifying the nexus between features of disordered eating behavior including supplement use, and body image. Methodology: A probabilistic randomized sample of 305 gym members was assessed based on their level of body satisfaction and its influence on their eating habits and supplement use through a structured survey. Findings: Only 37% of the participants were satisfied with their body image. The results concurred with the notion of a poor body image influencing body esteem (χ2 (10) = 137.21, p < 0.05; Cramer V = 0.474). While exercise motivated the use of supplements, a significant relationship was also observed between disordered eating habits and supplement use (χ2 (4) = 48.63, p < 0.05; Cramer V = 0.399). A predictive model was successfully drawn inclusive of the disordered eating behaviors dimensions as a potent predictor of body image (χ2 (56) = 397.12, p < 0.001. Implications: This study presents an in-depth analysis of the magnitude of disordered eating behaviors with respect to individuals in the local fitness industry, and the need for professional support programs toward the re-alignment of body image in an effort to curtail the development of eating disorders in Mauritian gym-goers.
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da Silva WR, Teixeira PA, Marôco J, Ferreira EB, Teodoro MA, Campos JADB. Relationship between Attention to Body Shape, Social Physique Anxiety, and Personal Characteristics of Brazilians: A Structural Equation Model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14802. [PMID: 36429522 PMCID: PMC9690452 DOI: 10.3390/ijerph192214802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/04/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
People can develop eating disorders due to excessive body image concerns. The primary objective of this study was to examine the relationship between attention to body shape, social physique anxiety, and personal characteristics in a sample of Brazilians. The secondary objective was to evaluate the correlation of the constructs with the participants' body composition. First, 1795 individuals (70% female; Mage = 25.5 ± 6.6 years) completed the Attention to Body Shape Scale, the Social Physique Anxiety Scale, and a sociodemographic questionnaire. Then, 286 participants (58% female; Mage = 25.3 ± 5.7 years) underwent a bioimpedance exam to identify body composition. Structural equation modeling was used to estimate the relationship between the variables. The greater the attention to body shape, the greater the expectations of negative physical evaluation and the less comfort with physical presentation. Younger age, female gender, consumption of supplements/substances for body change, restrictive diets, physical inactivity, poor self-assessment of food quality, and overweight/obesity were related to negative body concerns. An expectation of negative physical evaluation was positively correlated with body fat and negatively with muscle mass. Comfort with physical presentation was negatively correlated with fat and positively with muscle. These results can support preventive strategies aimed at reducing eating disorders resulting from body image concerns.
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Affiliation(s)
- Wanderson Roberto da Silva
- Graduate Program in Food, Nutrition and Food Engineering, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
- Graduate Program in Nutrition and Longevity, Federal University of Alfenas (UNIFAL-MG), Alfenas 14800-903, Minas Gerais, Brazil
| | - Patrícia Angélica Teixeira
- Graduate Program in Food, Nutrition and Food Engineering, São Paulo State University (UNESP), Araraquara 14800-903, São Paulo, Brazil
| | - João Marôco
- William James Center for Research (WJCR), University Institute of Psychological, Social and Life Sciences (ISPA), 1149-041 Lisboa, Portugal
| | - Eric Batista Ferreira
- Graduate Program in Nutrition and Longevity, Federal University of Alfenas (UNIFAL-MG), Alfenas 14800-903, Minas Gerais, Brazil
- Statistics Department, Federal University of Alfenas (UNIFAL), Alfenas 37130-001, Minas Gerais, Brazil
| | - Micaela Aparecida Teodoro
- Graduate Program in Nutrition and Longevity, Federal University of Alfenas (UNIFAL-MG), Alfenas 14800-903, Minas Gerais, Brazil
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Svantorp-Tveiten KME, Ivarsson A, Torstveit MK, Sundgot-Borgen C, Mathisen TF, Bratland-Sanda S, Rosenvinge JH, Friborg O, Pettersen G, Sundgot-Borgen J. The Healthy Body Image Intervention and Reduction in Eating Disorder Symptomatology and Muscle Building Supplement Use in High School Students: A Study of Mediating Factors. Front Psychol 2022; 13:803654. [PMID: 35837620 PMCID: PMC9274278 DOI: 10.3389/fpsyg.2022.803654] [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: 10/28/2021] [Accepted: 01/26/2022] [Indexed: 11/13/2022] Open
Abstract
Background Mediation analysis is important to test the theoretical framework underpinning an intervention. We therefore aimed to investigate if the healthy body image (HBI) intervention's effect on eating disorder (ED) symptomatology and use of muscle building supplements was mediated by the change in risk and protective factors for ED development and muscle building supplement use. Methods This study used data from the HBI intervention: a cluster randomized controlled universal intervention aiming to promote positive body image and embodiment and reduce the risk for ED development including 30 schools in Norway. A total of 1,713 (37% boys) participants were included in the analyses. Conditional latent growth curve analyses were performed to test for indirect effects on ED symptomatology and weekly frequency of protein and creatine supplement use measured at the 12-month follow-up via change in the proposed mediators. Results In girls, the reduction in ED symptomatology was mediated by positive changes in protective factors (self-esteem and body image flexibility) and reductions in risk factor scores (perceived media pressure and thin appearance internalization). Comparable changes in protective and risk factors among boys played no mediating role. Conclusion Interventions aiming to reduce the risk of ED development in girls may benefit from aiming to enhance self-esteem and body image flexibility and reduce perceived media pressure and thin appearance internalization. Future studies should investigate the casual relationship between muscle building supplement use and risk and protective factors for ED development in both girls and boys.
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Affiliation(s)
| | - Andreas Ivarsson
- Center of Research on Welfare, Health and Sport, Halmstad University, Halmstad, Sweden
- Department of Sport Science and Physical Education, University of Agder, Kristiansand, Norway
| | | | | | | | - Solfrid Bratland-Sanda
- Department of Sports, Physical Education and Outdoor Studies, University of South-Eastern Norway, Kongsberg, Norway
| | | | - Oddgeir Friborg
- Department of Psychology, UiT – The Arctic University of Norway, Tromsø, Norway
| | - Gunn Pettersen
- Department of Health and Care Sciences, UiT – The Arctic University of Norway, Tromsø, Norway
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7
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Constantinou D, Aguiyi I. Use, Perceptions and Attitudes of Cognitive and Sports Performance Enhancing Substances Among University Students. Front Sports Act Living 2022; 4:744650. [PMID: 35498517 PMCID: PMC9039134 DOI: 10.3389/fspor.2022.744650] [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: 07/20/2021] [Accepted: 03/10/2022] [Indexed: 11/13/2022] Open
Abstract
The use of prohibited performance enhancing substances (PESs) is well-documented among athletes, and includes student athletes in institutions of higher learning. In addition to using PESs to enhance sporting performance, they may be used for cognitive and academic achievement, specifically through the use of neuroactive substances. The latter in particular is under-researched and poses public health risks. Understanding the extent and reasons for using or not using PESs by university students will assist in addressing further research, and means to deter their use. This study aimed to explore the prevalence, attitude, and perceptions of the use of both sport and academic performance-enhancing substances by students at two universities in Johannesburg, South Africa. The study utilized a cross-sectional, descriptive survey design using a self-administered online questionnaire. All registered students were invited to participate via email using the university communications modes, with a link to a Google Forms questionnaire. Ethical approval was granted for the study and data were collected anonymously. The sample size of responses with completed data was 548, comprising predominantly female and undergraduate students, with 32 (6%) indicating current or past use of PESs. Among the prohibited substances used, neuroactive drugs were mostly used, with cannabis the highest followed by stimulants. The most popular reasons reported were for academic and cognitive performance. Most responded with what would be deemed ethically appropriate answers on the perception of PES use and 72% of the participants believe that a drug-testing program will prevent their use in the university, and further, that educational programs will help improve students' knowledge of PES. Although relatively low usage, university students use performance enhancing substances, mostly for cognitive enhancement using neuroactive stimulants. Most believe that the use of all forms of PESs is high among their peers; and favor education and testing programs, suggesting that intervention programs may be effective. Better defined research should be conducted to unpack the broad findings in this study.
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Affiliation(s)
- Demitri Constantinou
- Centre for Exercise Science and Sports Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- International Federation of Sports Medicine (FIMS) Collaborating Centre of Sports Medicine, Johannesburg, South Africa
- *Correspondence: Demitri Constantinou
| | - Ivan Aguiyi
- Centre for Exercise Science and Sports Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
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Marinoni M, Parpinel M, Gasparini A, Ferraroni M, Edefonti V. Psychological and socio-educational correlates of energy drink consumption in children and adolescents: a systematic review. Eur J Pediatr 2022; 181:889-901. [PMID: 34825275 DOI: 10.1007/s00431-021-04321-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 12/01/2022]
Abstract
Energy drinks (EDs) are non-alcoholic beverages providing an extra boost in physical/cognitive performance and mood. Besides the physiological effects related to the high-caffeine content of EDs, long-term emotional, social, and behavioral effects have been recently receiving attention. However, a few systematic reviews have focused on the critical yet understudied periods of childhood and adolescence. We have undertaken a comprehensive systematic review of the evidence on any psychosocial correlates of ED consumption in 0-18-year-old subjects, as published up to April 1, 2021, in MEDLINE/PubMed, PsycINFO, and Cochrane Reviews and Central Register of Controlled Trials. Of the initial 789 records, 104 original articles were included in the systematic review. Seventy percent of them were published from 2016 onwards; among investigated topics, substance use ranked first, followed by psychological and socio-educational factors; the less investigated topic was risky behaviors. Taste and energy-seeking were the main drivers of consumption, which generally happened at home or during sport/recreational activities, without perception of health-related risks. Positive associations with ED consumption were found for sensation seeking, irritability/anger, and suicide ideation, plan, or attempts. Finally, participants with lower grades, a low parental monitoring, or bad influences from peers were more likely to consume EDs. Conclusion: With ~ 70% of papers published since the 2 comprehensive reviews on children/adolescents were carried out, an update of the literature with a broad focus is of great importance. Consumption of EDs by children/adolescents lies in the potential interplay between personality traits, school performance, and influences by family members and peers. What is Known: • Taste and energy-seeking are the main drivers of energy drink consumption, which mostly happened at home or in sport/recreational activities. What is New: • Perception of risks related to energy drinks is associated with a lower consumption, as based on cross-sectional studies. • As mostly based on cross-sectional studies: 1. energy drink consumption is related to sensation seeking, irritability/anger, and suicide ideation or attempts; 2. students with a lower school performance, low parental monitoring, or bad peer influence, are more likely to consume energy drinks.
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Affiliation(s)
- Michela Marinoni
- Department of Medicine - DAME, Università Degli Studi di Udine, via Colugna 50, Udine, 33100, Italy
| | - Maria Parpinel
- Department of Medicine - DAME, Università Degli Studi di Udine, via Colugna 50, Udine, 33100, Italy
| | - Alessio Gasparini
- Branch of Medical Statistics, Biometry and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, via Venezian 1, Milan, 20133, Italy
| | - Monica Ferraroni
- Branch of Medical Statistics, Biometry and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, via Venezian 1, Milan, 20133, Italy
| | - Valeria Edefonti
- Branch of Medical Statistics, Biometry and Epidemiology "G. A. Maccacaro", Department of Clinical Sciences and Community Health, Università Degli Studi Di Milano, via Venezian 1, Milan, 20133, Italy.
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Harmse B, Noorbhai H. Sport supplement use among high school rugby players in South Africa: A scoping review. SOUTH AFRICAN JOURNAL OF SPORTS MEDICINE 2022; 34:v34i1a13348. [PMID: 36815910 PMCID: PMC9924539 DOI: 10.17159/2078-516x/2022/v34i1a13348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background The use of sport supplements has increased for all types and levels of sport, with an estimated increase of 5.8% annually. Sport supplement usage and doping among high school athletes has increased over the years to meet the demands of the sports. Objective This scoping review identifies the trends and gaps in current literature regarding sport supplement use among high school rugby players in South Africa. Methods A search was conducted using six electronic databases, namely Oxford Academic, Emerald Publishing, ResearchGate, SABINET, PubMed and Google Scholar. The eligibility of the articles was determined by means of a PRISMA flow diagram with the following inclusion criteria: (1) research concerning supplement use among rugby players, (2) research concerning supplement use among high school rugby players. Five articles all comprising of cross-sectional study designs were included in this scoping review. Results The prevalence of sport supplement use among adolescent rugby players ranged from 30% to 45%. Protein supplements (31% - 79%) were the most commonly identified supplement used among adolescent rugby players with the aim to improve sport performance as the most common reason for use. The internet (74%) and magazines (72%), followed by coaches comments (28% to 30%), were given as the most common sources of information. Conclusion The use of sport supplements is increasing among high school athletes due to the belief that these substances will provide sporting performance benefits or enhance the competitive 'edge' of these athletes. Additional education regarding the safety of supplements is necessary to lower the incidences of doping among young athletes and avoid the adverse health effects that uncontrolled supplement use can cause.
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Affiliation(s)
- B Harmse
- Department of Sport and Movement Studies, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
| | - H Noorbhai
- Department of Sport and Movement Studies, Faculty of Health Sciences, University of Johannesburg, Johannesburg, South Africa
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Hilkens L, Cruyff M, Woertman L, Benjamins J, Evers C. Social Media, Body Image and Resistance Training: Creating the Perfect 'Me' with Dietary Supplements, Anabolic Steroids and SARM's. SPORTS MEDICINE - OPEN 2021; 7:81. [PMID: 34757466 PMCID: PMC8579410 DOI: 10.1186/s40798-021-00371-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 10/06/2021] [Indexed: 01/04/2023]
Abstract
BACKGROUND Few studies have assessed the use of dietary supplements, anabolic androgenic steroids (AAS) and selective androgen receptor modulators (SARM) in male gym users. The comparison of physical appearance with others on social media and the exposure to fitness-related content on social media (i.e., image-centric social media use) may have a profound role in using these compounds due to its role in creating negative body images in male gym users. OBJECTIVE Provide contemporary data on the use of dietary supplements, AAS and SARM among young male gym users, and test the hypothesis that social media is associated with the use of dietary supplements, AAS and SARM, as a result of a negative body image. METHODS In this cross-sectional study, conducted in the Netherlands, male gym users (N = 2269; 24 ± 6 years) completed an online questionnaire including self-reported measures regarding resistance training participation, image-centric social media use, dietary supplement intake, and body image. The prevalence of AAS and SARM use was assessed with randomized response, a technique to ask sensitive questions indirectly. RESULTS Of all participants, 83% used ergogenic dietary supplements (mainly protein and creatine), and an estimated 9 versus 2.7% had ever used AAS versus SARM. Image-centric social media use was positively associated with the use of dietary supplements (r = .26; p < 0.01) and AAS (p < 0.05), but not SARM. Image-centric social media use was associated with a more dissatisfied body image (r = .34; p < 0.01). Body image did not mediate the relationship between image-centric social media use and the use of doping compounds. CONCLUSIONS The use of dietary supplements in young male gym users is exorbitant, with the use of AAS and SARM being substantial. Image-centric social media use is positively associated with the use of dietary supplements and AAS.
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Affiliation(s)
- Luuk Hilkens
- School of Sport and Exercise, HAN University of Applied Sciences, Nijmegen, The Netherlands
| | - Maarten Cruyff
- Department of Methodology and Statistics, Utrecht University, Utrecht, The Netherlands
| | - Liesbeth Woertman
- Department of Clinical Psychology, Utrecht University, Utrecht, The Netherlands
| | - Jeroen Benjamins
- Department of Social, Health, and Organizational Psychology, Utrecht University, PO Box 80140, 3508 TC, Utrecht, The Netherlands
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, The Netherlands
| | - Catharine Evers
- Department of Social, Health, and Organizational Psychology, Utrecht University, PO Box 80140, 3508 TC, Utrecht, The Netherlands.
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Svantorp-Tveiten KME, Friborg O, Torstveit MK, Mathisen TF, Sundgot-Borgen C, Rosenvinge JH, Bratland-Sanda S, Pettersen G, Sundgot-Borgen J. Protein, Creatine, and Dieting Supplements Among Adolescents: Use and Associations With Eating Disorder Risk Factors, Exercise-, and Sports Participation, and Immigrant Status. Front Sports Act Living 2021; 3:727372. [PMID: 34723179 PMCID: PMC8548763 DOI: 10.3389/fspor.2021.727372] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/13/2021] [Indexed: 01/19/2023] Open
Abstract
Objective: This study aimed to estimate the number of weekly users of protein, creatine, and dieting supplements and to explore whether weekly use was related to eating disorder (ED) risk factors, exercise, sports participation, and immigrant status. Methods: In total, 629 and 1,060 high school boys and girls, respectively, self-reported weekly frequency of protein, creatine, and dieting supplement use, and weight and shape concerns, appearance internalization and pressure, self-esteem, mental distress, physical activity level, exercise context, and the type and weekly frequency of sport played. Multiple hierarchical regression analyses were performed to investigate explanatory factors for supplement use. Results: More boys than girls used protein and creatine supplements. Immigrant boys had more frequent use of all supplements than non-immigrant boys, and immigrant girls used creatine supplements more frequently than non-immigrant girls. In total, 23–40 and 5–6% of the variation in the weekly frequency of supplement use in boys and girls, respectively, was explained by immigrant status, ED risk factors, and exercise and sports participation. More frequent use of protein, creatine and dieting supplements in boys was significantly explained by more weight and shape concerns, fitness center exercise, and weight-sensitive sports participation. Depending on the type of supplement, more frequent use of supplements in girls was significantly explained by lower self-esteem, more engagement in weight-sensitive sports, and less engagement in general sport and exercise activities. Conclusion: Weekly supplement use was common and more frequent among boys than girls. The weekly use of protein, creatine, and dieting supplements was related to ED risk factors, exercise and sports participation, and immigrant status in boys but not in girls.
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Affiliation(s)
| | - Oddgeir Friborg
- Department of Psychology, UiT -The Arctic University of Norway, Tromsø, Norway
| | | | | | | | | | - Solfrid Bratland-Sanda
- Department of Sports, Physical Education and Outdoor Studies, University of South-Eastern Norway, Kongsberg, Norway
| | - Gunn Pettersen
- Department of Health and Care Sciences, UiT - The Arctic University of Norway, Tromsø, Norway
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Pedrosa I, Fernandes Paris V, Reis HHT, Bouzas Marins JC. Padrões de consumo de bebidas energéticas e suplementos alimentares à base de cafeína por frequentadores de academias. REVISTA CIÊNCIAS EM SAÚDE 2020. [DOI: 10.21876/rcshci.v10i4.976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Objetivo: Avaliar o nível de conhecimento, hábitos, e prevalência de consumo de energéticos e suplementos à base de cafeína por praticantes de exercícios físicos em academias. Métodos: Foi empregado um questionário autoaplicável de 27 perguntas no Google® Forms, divulgado em mídias sociais entre setembro e outubro de 2018. Resultados: Participaram 200 frequentadores de academias, 71% adultos jovens, 52% tendo mais de 2 anos de prática e frequência regular de 5 - 6 vezes por semana. A maioria da amostra era mulher (58,5%), praticante de musculação (61,6%) de MG (62,5%). O consumo sem orientação profissional foi de 81,6% nos energéticos e 53,9% para suplementos à base de cafeína. 73,3% dos consumidores de energéticos tinham objetivos relacionados com atividades sociais, preferindo a marca RedBul® (40,4%). Entre os consumidores de suplementos de cafeína houve preferência por termogênicos (32,7%) e cafeína pura (29,9%), com objetivo principal a melhora de performance (28,7%), apresentando respostas ergolíticas de taquicardia e palpitações como registrado nos energéticos. Não houve registro de efeitos adversos em 19,2% dos consumidores de cafeína e 40,8% de energéticos. As dosagens de consumo dos produtos estavam dentro da faixa de segurança (< 6 mg/kg). Conclusão: O consumo de ambos produtos foi feito sem orientação profissional, porém, com dosagens dentro da faixa de segurança. O consumo de bebidas energéticas esteve voltado para atividades sociais e melhora da performance esportiva. Foram registrados efeitos ergolíticos.
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Matheson EL, Lewis-Smith H, Diedrichs PC. The effectiveness of brief animated films as a scalable micro-intervention to improve children's body image: A randomised controlled trial. Body Image 2020; 35:142-153. [PMID: 33049455 DOI: 10.1016/j.bodyim.2020.08.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 08/17/2020] [Accepted: 08/29/2020] [Indexed: 01/26/2023]
Abstract
Creating media to counteract the plethora of media and advertising that perpetuates negative body image is a scalable public health strategy that can be achieved through innovative micro-interventions. This study examined the immediate and short-term (one-week follow-up) impact of viewing brief, evidence-informed animated films on young people's body image, media literacy, and self-efficacy in addressing appearance teasing. The animations were co-created through a partnership among academics, a personal care brand's social mission, and a children's television channel. Participants aged 7-14 (N = 1329, 49 % girls) were randomised into one of three viewing conditions: Appearance Teasing & Bullying, Media & Celebrities, or a non-appearance-related animation. Contrary to predictions, all three animations were comparably effective at eliciting intervention effects. For girls and boys aged 7-10, all three animations immediately improved state body satisfaction (+boys aged 11-14; Cohen's ds = .60-.71) and led to sustained improvements in trait media literacy (+girls aged 11-14; ds = .38-.61), sensitivity to appearance teasing (+boys aged 11-14; ds = .35-.48), and willingness to ignore appearance teasing (7-10 years only; ds = .34-.74) at one-week follow-up. Findings indicate that children's media is an effective medium for developing micro-interventions.
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Affiliation(s)
- Emily L Matheson
- Centre for Appearance Research, Department of Health and Social Sciences, University of the West of England, Coldharbour Lane, Bristol, BS16 1QY, UK.
| | - Helena Lewis-Smith
- Centre for Appearance Research, Department of Health and Social Sciences, University of the West of England, Coldharbour Lane, Bristol, BS16 1QY, UK
| | - Phillippa C Diedrichs
- Centre for Appearance Research, Department of Health and Social Sciences, University of the West of England, Coldharbour Lane, Bristol, BS16 1QY, UK
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14
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Intentional weight gain efforts among young Canadian adults aged 17-32 years. Eat Behav 2020; 38:101407. [PMID: 32693348 DOI: 10.1016/j.eatbeh.2020.101407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 05/19/2020] [Accepted: 06/12/2020] [Indexed: 11/22/2022]
Abstract
Research related to body weight management often focuses on weight loss but attempts to gain weight may be common given societal ideals related to body shape and size. The objectives of this study were to examine the prevalence and correlates of intentional weight gain attempts and to characterize weight gain strategies reported among young Canadian adults. Cross-sectional data were drawn from a 2017 online survey of young adults, aged 17 to 32 years, recruited from five large cities (n=976, 493 men and 483 women). The prevalence of weight gain attempts and specific strategies used were estimated, with multivariable logistic regression used to examine correlates of intent to gain weight. Over one in five men (23.1%) and approximately one in twenty women (6.0%) reported attempting to gain weight in the past 12 months. Men, those who perceived themselves as underweight (compared to "just about right"), and those who reported one or more racial/ethnic identity or did not state their race/ethnicity (compared to white only) had higher odds of reporting attempting to gain weight. Individuals who perceived themselves as overweight or who self-reported heights and weights corresponding to a BMI between 25 and 29.9 had lower odds of reporting attempting to gain weight. Those attempting to gain weight reported using three strategies on average, with the most prevalent among both men and women including eating more overall, eating more protein, and exercising/weightlifting. The results suggest that, while less common than dieting, weight gain attempts are not rare, especially among young men.
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El Khoury D, Hansen J, Tabakos M, Spriet LL, Brauer P. Dietary Supplement Use among Non-athlete Students at a Canadian University: A Pilot-Survey. Nutrients 2020; 12:nu12082284. [PMID: 32751521 PMCID: PMC7468929 DOI: 10.3390/nu12082284] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 07/24/2020] [Accepted: 07/27/2020] [Indexed: 12/13/2022] Open
Abstract
Despite the emerging evidence of adverse consequences and interaction with doping substances, dietary supplements (DS) are commonly used by many Canadians. The purpose of this study was to evaluate the patterns and determinants of current DS use among non-athlete students at a Canadian university using a cross-sectional approach. Of the 475 participants who completed the online survey, 43.4% declared using DS in the past six months. Participants who were male, aged ≥20 years old, and had a parent/guardian with a bachelor’s degree were significantly more likely to use DS. The types of DS used and the sources of information regarding DS were significantly influenced by age and gender. The most commonly used DS were vitamin and mineral and protein supplements. Most participants referred to healthcare professionals for information on DS, but many continued to depend on unreliable sources including family and friends. Of DS users, 10.1% reported experiencing adverse events from using DS. Findings from this study indicate that supplementation is very common among Canadian non-athlete students and highlight the urgent need for the development of educational programs surrounding DS use.
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Affiliation(s)
- Dalia El Khoury
- Department of Family Relations and Applied Nutrition, University of Guelph, 50 Stone Road, Guelph, ON N1G 2W1, Canada; (J.H.); (M.T.); (P.B.)
- Correspondence:
| | - Joel Hansen
- Department of Family Relations and Applied Nutrition, University of Guelph, 50 Stone Road, Guelph, ON N1G 2W1, Canada; (J.H.); (M.T.); (P.B.)
| | - Madelyn Tabakos
- Department of Family Relations and Applied Nutrition, University of Guelph, 50 Stone Road, Guelph, ON N1G 2W1, Canada; (J.H.); (M.T.); (P.B.)
| | - Lawrence L. Spriet
- Department of Human Health and Nutritional Sciences, University of Guelph, 50 Stone Road, Guelph, ON N1G 2W1, Canada;
| | - Paula Brauer
- Department of Family Relations and Applied Nutrition, University of Guelph, 50 Stone Road, Guelph, ON N1G 2W1, Canada; (J.H.); (M.T.); (P.B.)
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16
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Yager Z, McLean S. Muscle building supplement use in Australian adolescent boys: relationships with body image, weight lifting, and sports engagement. BMC Pediatr 2020; 20:89. [PMID: 32101154 PMCID: PMC7043030 DOI: 10.1186/s12887-020-1993-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 02/21/2020] [Indexed: 11/16/2022] Open
Abstract
Background The extent and implications of muscle building protein supplement use among adolescents is relatively unknown. This study aimed to describe the prevalence of protein powder, creatine, and anabolic steroid use in a sample of 14–16 year-old boys in Australia, and the predictors of actual use, and intentions to use protein powder. Methods Data were obtained from questionnaires with Australian adolescent boys aged 14–16 years from one independent boy’s school in Melbourne (N = 237). Hierarchical linear and logistic regressions were used to determine the predictors of intentions, and actual use of protein powder. Results 49.8% of boys reported current use of, and 62% intended to use protein powder; 8.4% used creatine, and 4.2% used anabolic steroids. Higher levels of drive for muscularity, participation in weight training, and playing a greater number of sports were significant predictors of higher current use and intentions to use protein powder, but age, BMI, body esteem, and ethnicity were not. Conclusions Prevalence of muscle building supplement use was relatively high among this adolescent population. This research has implications for intervention and prevention programs to educate young boys about muscle building supplements to reduce negative physical and psychological health effects of their use.
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Affiliation(s)
- Zali Yager
- Institute for Health and Sport, Victoria University, Ballarat Road, Melbourne, 3011, Australia.
| | - Siân McLean
- Institute for Health and Sport, Victoria University, Ballarat Road, Melbourne, 3011, Australia.,The Bouverie Centre, School of Psychology and Public Health, La Trobe University, Gardiner St, Melbourne, 3056, Australia
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17
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Anabolic-Androgenic Steroid Use in the Eastern Mediterranean Region: a Scoping Review of Extant Empirical Literature. Int J Ment Health Addict 2020. [DOI: 10.1007/s11469-019-00217-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AbstractThe use of image- and performance-enhancing drugs particularly anabolic-androgenic steroids (AAS) is not a new phenomenon. AAS use is not limited to athletes, with mainstream populations using these drugs for aesthetic purposes. Prevalence has been predominantly in Western countries, with some recent studies indicating a rise in popularity in the Eastern Mediterranean region. A scoping review of extant empirical literature from the Eastern Mediterranean region described and mapped what is known about the extent of AAS in the region. Four themes emerged from the review: (1) profile of AAS users; (2) AAS within gymnasium practice; (3) AAS regimes of use; and (4) knowledge and understanding of the AAS concept and related adverse effects. The review highlights a relatively new phenomenon of AAS use in the Eastern Mediterranean. The review underscores the need to carry out further research, particularly qualitative and quantitative studies with both genders, and cognisant of the complexities of culture and religiosity.
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Smith ACT, Stavros C. Exploring the Progressive Use of Performance Enhancing Substances by High-Performance Athletes. Subst Use Misuse 2020; 55:914-927. [PMID: 31918609 DOI: 10.1080/10826084.2019.1711412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Background: Given implications associated with the use of performance-enhancing substances (PESs), stakeholders must remain informed about usage precipitants and anticipate conditions signaling athlete vulnerability to hazardous exposures. Objectives: To gain deeper qualitative insight into high-level athlete PES usage; explore the variables leading them to escalate their PES use regimens; reveal PES experiences during their careers and, unlike other studies, not to focus exclusively on "doping" as measured by the use of WADA-banned substances. Methods: A macro life course-based framework from which the data could emerge through a thematic coding analysis was utilized. Sixteen narrative life course histories of recently retired high-performance athletes report on the factors impelling their escalation in PES use, including for some, the first use of banned PES. Results: Informant reports, thematically coded, reveal performance maximization urgency to be a central factor in escalating PES use, driven by four variables: Requirements, Opportunities, Influencers and Outcomes. These variables each comprise two key components that stimulate an urgency ecosystem affecting an athlete's proximity to an escalation threshold. Conclusions/Importance: Such a comprehensive investigation of PES use precipitants has not previously been undertaken. Advances in PES use were instantiated by a substantive, sometimes radical and often sudden increase in urgency to improve performance related to output requirements, specific demands, knowledge and access, timing windows, the competitive landscape, loyalty to coaches, efficiency expectations and likelihood of detection. This study informs incremental models of doping, the use of which is encouraged in order to analyze life course narratives to better understand athlete behaviors.
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Affiliation(s)
- Aaron C T Smith
- Institute for Sport Business, Loughborough University London, UK
| | - Constantino Stavros
- School of Economics, Finance and Marketing, RMIT University, Melbourne, Victoria, Australia
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Toward Prevention of Doping in Youth Sport: Cross-Sectional Analysis of Correlates of Doping Tendency in Swimming. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16234851. [PMID: 31810337 PMCID: PMC6926806 DOI: 10.3390/ijerph16234851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 11/28/2019] [Accepted: 11/29/2019] [Indexed: 11/24/2022]
Abstract
Doping is recognized as one of the most important problems in sports, but a limited number of studies have investigated doping problems in youth athletes. This study aimed to evaluate doping tendency (potential doping behavior (PDB)) and correlates of PDB in youth age swimmers. The participants were 241 competitive swimmers (131 females; 15.3 ± 1.1 years of age, all under 18 years old). Variables included predictors and PDB (criterion). Predictors consisted of sociodemographic factors (gender and age), sport-related variables (i.e., experience in swimming and sport achievement), variables explaining coaching strategy and training methodology, consumption of dietary supplements (DS), knowledge about doping, and knowledge about sports nutrition and DS (KSN). In addition to the descriptive statistics and differences between genders, a multinomial regression using PDB as the criterion (negative-, neutral-, or positive-PDB, with a negative-PDB as the reference value) was calculated to define associations between predictors and criterion. With only 71% of swimmers who declared negative-PDB results indicated an alarming figure. Boys with better KSN were more negatively oriented toward positive-PDB (OR: 0.77, 95%CI: 0.60–0.95). In girls, lower competitive achievement was evidenced as a risk factor for neutral-PDB (OR: 0.39, 95%CI: 0.24–0.63). Also, higher neutral-PDB (OR: 0.88, 95%CI: 0.81–0.96) and positive-PDB (OR: 0.90, 95%CI: 0.83–0.99) were identified in girls who began with intensive training in younger age. Because of the alarming figures of PDB, there is an evident need for the development of systematic antidoping educational programs in youth swimming. In doing so, focus should be placed on girls who began intensive training at an earlier age and those who did not achieve high competitive results.
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Sekulic D, Tahiraj E, Maric D, Olujic D, Bianco A, Zaletel P. What drives athletes toward dietary supplement use: objective knowledge or self-perceived competence? Cross-sectional analysis of professional team-sport players from Southeastern Europe during the competitive season. J Int Soc Sports Nutr 2019; 16:25. [PMID: 31200782 PMCID: PMC6570862 DOI: 10.1186/s12970-019-0292-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Accepted: 06/05/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Issues related to knowledge of nutrition and dietary supplementation (DS) are understudied in professional athletes. This study aimed to examine the possible association between knowledge of nutrition and DS (KN&DS) and dietary supplement use (DSU) among professional athletes involved in team sports. METHODS The sample comprised professional team-sport athletes (N = 912, age: 22.11 ± 3.37 years, 356 females) involved in four Olympic sports: basketball (N = 228), soccer (N = 324), volleyball (N = 154), and handball (N = 206). The participants were tested by previously validated questionnaires to examine their self-perceived competence on nutrition and DS (S/KN&DS), their objectively evaluated (tested) KN&DS (O/KN&DS), sociodemographic and sport-specific variables (predictors), and DSU (criterion). Associations between the predictors and the criterion (No-DSU - Irregular-DSU - Regular-DSU) were determined by multinomial regression analysis for the total sample and separately for the studied sports. RESULTS DSU was found to be less prevalent in older and more successful players. The O/KN&DS and S/KN&DS were positively correlated with DSU, but S/KN&DS was a stronger predictor of DSU than O/KN&DS. Sport-specific associations between predictors and criterion were identified, with stronger correlations in sports with a higher prevalence of DSU. CONCLUSIONS Due to the low correlations between O/KN&DS and S/KN&DS in the studied players, this study highlights the necessity for more frequent monitoring of biomarkers of nutritional status and its usage by coaches and practitioners to provide quantitative instruction.
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Affiliation(s)
- Damir Sekulic
- Faculty of Kinesiology, University of Split, Teslina 6, 21000, Split, Croatia.
| | | | - Dora Maric
- Faculty of Kinesiology, University of Split, Teslina 6, 21000, Split, Croatia.,Department of Psychological, Program in Health Promotion and Cognitive Sciences, Sport and Exercise Research Unit, Pedagogical and Education Sciences, University of Palermo, 90144, Palermo, Italy
| | - Dragana Olujic
- Faculty of Food Technology and Biotechnology, University of Zagreb, Zagreb, 10000, Croatia
| | - Antonino Bianco
- Department of Psychological, Program in Health Promotion and Cognitive Sciences, Sport and Exercise Research Unit, Pedagogical and Education Sciences, University of Palermo, 90144, Palermo, Italy
| | - Petra Zaletel
- Faculty of Sport, University of Ljubljana, Ljubljana, 1000, Slovenia
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Identification of Factors Associated with Potential Doping Behavior in Sports: A Cross-Sectional Analysis in High-Level Competitive Swimmers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15081720. [PMID: 30103461 PMCID: PMC6121562 DOI: 10.3390/ijerph15081720] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/11/2018] [Accepted: 08/07/2018] [Indexed: 01/30/2023]
Abstract
Background: Doping behavior, including the misuse of performance-enhancing drugs, is currently a serious problem in sports, and the efficacy of preventive efforts directly depends on information regarding the associations among different precipitating factors (PF) and doping behavior. This study aimed to establish the PF of potential doping behavior (PDB) in competitive swimmers. Methods: The study included 301 swimmers from Slovenia (153 females, 16.4 ± 2.4 years), tested during the 2017 National Championship. Variables were collected by previously validated questionnaires, which included questions on sociodemographics, sports-related factors, consumption of dietary supplements, knowledge of doping, factors of hesitation, and doping-related factors (i.e., number of doping tests, opinion about the presence of doping in sport). The PDB (positive, neutral, or negative intention toward doping) was observed as a criterion, while other variables were included as predictors in multinomial regression analyses (with "negative" as reference value), which additionally controlled for gender and age category (cadet-, junior-, and senior-level) as confounders. Results: The results confirmed higher susceptibility to doping in males (positive: odds ratio (OR): 2.77, 95% confidence interval (CI): 1.27⁻6.04), those swimmers who reported higher alcohol consumption (neutral: OR: 2.18, 95%CI: 1.06⁻4.16, positive: OR: 2.14, 95%CI: 1.05⁻4.37), and those regularly used dietary supplements (positive: OR: 3.62, 95%CI: 1.25⁻10.52). Competitive achievement in Olympic- (neutral: OR: 0.57, 95%CI: 0.41⁻0.81, positive: OR: 0.59, 95%CI: 0.39⁻0.88), and non-Olympic disciplines (positive: OR: 0.54, 95%CI: 0.35⁻0.83) was protective against PDB. Swimmers who were more concerned about the negative social consequences of doping behavior (i.e., condemnation by family and friends) were less likely to declare a positive intention toward the PDB (family condemnation: OR: 0.69, 95%CI: 0.56⁻0.86, friends' condemnation: OR: 0.65, 95%CI: 0.52⁻0.80). Conclusions: The results of the study provide more precise insight into the specific factors associated with PDB in swimming. The established precipitating factors should be incorporated into targeted anti-doping campaigns in this sport.
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da Silva WR, Campos JADB, Marôco J. Impact of inherent aspects of body image, eating behavior and perceived health competence on quality of life of university students. PLoS One 2018; 13:e0199480. [PMID: 29933390 PMCID: PMC6014647 DOI: 10.1371/journal.pone.0199480] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/07/2018] [Indexed: 11/18/2022] Open
Abstract
The aim of this study was to assess the impact of inherent aspects of body image, eating behavior and perceived health competence on quality of life of university students. Participants completed the instruments Body Shape Questionnaire (reduced version, BSQ-8B), Male Body Dissatisfaction Scale (reduced version, MBDS-R), Three-Factor Eating Questionnaire (reduced version, TFEQ-18), Perceived Health Competence Scale (bifactorial version, PHCS-B), World Health Organization Quality of Life Questionnaire-Short Form (WHOQoL-bref) and a questionnaire for characterization of sample. Psychometric properties of instruments were previously evaluated by confirmatory factor analysis. A hypothetical model for each sex was developed and tested. In both model surveys the aspects of the body image (BSQ-8B: body shape concern; MBDS-R: musculature and general body appearance), of eating behavior (TFEQ-18: cognitive restriction, emotional eating, and uncontrolled eating) and of the perceived health competence (PHCS-B: expectations of achieving the desired health results and competence in health behaviors) were used as direct predictors on quality of life (WHOQoL-bref). The variables age, medication use for body change, food supplement use for body change, and body mass index (BMI) were inserted in the aspects of the body image. The variables course shift, initial expectation regarding the course, self-reported performance in the course, concomitant work activities to studies, and economic class were inserted into the quality of life. The model surveys were evaluated using structural equation modeling. A level of significance of 5% was used. A total of 2,198 university students (female = 63.5%), including 1,151 Brazilians and 1,047 Portuguese, participated of study (locally representative samples). The average age of women was 20.8 ± 2.4 years and of men was 21.3 ± 3.3 years. The psychometric properties of the instruments were adequate, except for the PHCS, which was adjusted for each sex. The models presented variance explained of 54% and 49% for women and men, respectively. In both sexes, the students' perceived health competence and academic variables contributed significantly to their quality of life, and age, BMI, and medication and supplement use were significant factors relating to how a student views his or her body image. Women's quality of life was associated with body shape concern and emotional eating aspects. Men's quality of life was associated with general body appearance and cognitive restriction aspects. These results can be used to create and implement educational programs to improve quality of life of university students.
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Affiliation(s)
- Wanderson Roberto da Silva
- Department of Food and Nutrition of School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, São Paulo, Brazil
| | | | - João Marôco
- William James Center for Research (WJCR), University Institute of Psychological, Social, and Life Sciences (ISPA), Lisbon, Portugal
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Hauw D, Bilard J. Understanding Appearance-Enhancing Drug Use in Sport Using an Enactive Approach to Body Image. Front Psychol 2017; 8:2088. [PMID: 29238320 PMCID: PMC5712587 DOI: 10.3389/fpsyg.2017.02088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 11/16/2017] [Indexed: 12/14/2022] Open
Abstract
From an enactive approach to human activity, we suggest that the use of appearance-enhancing drugs is better explained by the sense-making related to body image rather than the cognitive evaluation of social norms about appearance and consequent psychopathology-oriented approach. After reviewing the main psychological disorders thought to link body image issues to the use of appearance-enhancing substances, we sketch a flexible, dynamic and embedded account of body image defined as the individual’s propensity to act and experience in specific situations. We show how this enacted body image is a complex process of sense-making that people engage in when they are trying to adapt to specific situations. These adaptations of the enacted body image require effort, perseverance and time, and therefore any substance that accelerates this process appears to be an easy and attractive solution. In this enactive account of body image, we underline that the link between the enacted body image and substance use is also anchored in the history of the body’s previous interactions with the world. This emerges during periods of upheaval and hardship, especially in a context where athletes experience weak participatory sense-making in a sport community. We conclude by suggesting prevention and intervention designs that would promote a safe instrumental use of the body in sports and psychological helping procedures for athletes experiencing difficulties with substances use and body image.
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Affiliation(s)
- Denis Hauw
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - Jean Bilard
- Faculty of Sport Science of the University of Montpellier, Montpellier, France
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Al OM, Elshatarat RA. Influence of knowledge and beliefs on consumption of performance enhancing agents in north-western Saudi Arabia. Ann Saudi Med 2017; 37:317-325. [PMID: 28761032 PMCID: PMC6150593 DOI: 10.5144/0256-4947.2017.317] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Consumption of performance enhancing agents (PEAs) has a wide range of negative health consequences, but knowledge of these consequences among gym users of PEAs in Saudi Arabia is not well understood. OBJECTIVES Identify the knowledge, awareness, beliefs and attitudes of gym users about negative health consequences of using PEAs, and the relationship between these factors and use of these agents. DESIGN Cross-sectional study. SETTING Five gyms in Madinah city, Saudi Arabia. SUBJECTS AND METHODS Convenience sampling was used to recruit gym users. An electronic self-administered questionnaire was used to collect data. MAIN OUTCOME MEASURE(S) Level of knowledge about the negative health consequences of PEAs among gym users. RESULTS About 70% of 316 participants had used one or more of PEAs over the last six months. Of those, about 68.4% used protein powder supplements and 48.1% used energy drinks. Participants who believed that protein powder supplements (c2=52.3, P < .01) and energy drinks (c2=35.2, P < .01) had health hazards used these agents less often than others during the six months preceding data collection. Participants who had less knowledge about the negative health consequences were more likely to use protein powder supplement (t=2.38, P=.018). On the other hand, those who were more knowledgeable about the negative health consequences of insulin, were more likely to use insulin (t=2.45, P=.015). CONCLUSION Misuse of PEAs is widespread among gym users in Saudi Arabia. Improving the level of knowledge and awareness of possible serious health consequences would hopefully lead to reduced PEA consumption. LIMITATIONS The temporal sequence of cause and effect could not be determined in a cross sectional study. Convenience sampling in a single city limited the generalizability of the findings to all regions of Saudi Arabia.
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Affiliation(s)
- Omar Mansour Al
- Dr. Omar Mansour Al Nozha, Department of Internal Medicine,, Taibah University,, PO Box 30088, Madinah 41477,, Saudi Arabia, T: 966-55534992, F: 014-8484800, , ORCID: http://orcid.org/0000-0002-9238-4683
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25
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Abstract
Performance-enhancing substances (PESs) are used commonly by children and adolescents in attempts to improve athletic performance. More recent data reveal that these same substances often are used for appearance-related reasons as well. PESs include both legal over-the-counter dietary supplements and illicit pharmacologic agents. This report reviews the current epidemiology of PES use in the pediatric population, as well as information on those PESs in most common use. Concerns regarding use of legal PESs include high rates of product contamination, correlation with future use of anabolic androgenic steroids, and adverse effects on the focus and experience of youth sports participation. The physical maturation and endogenous hormone production that occur in adolescence are associated with large improvements in strength and athletic performance. For most young athletes, PES use does not produce significant gains over those seen with the onset of puberty and adherence to an appropriate nutrition and training program.
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26
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Adams VJ, Goldufsky TM, Schlaff RA. Perceptions of body weight and nutritional practices among male and female National Collegiate Athletic Association Division II athletes. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2016; 64:19-24. [PMID: 26151725 DOI: 10.1080/07448481.2015.1062770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE This study investigated body weight and nutritional behavior perceptions among Division II collegiate athletes. PARTICIPANTS The sample was composed of 155 collegiate athletes who responded to a survey. METHODS Data were self-reported by athletes via questionnaire. Independent-sample t tests were used to identify significant gender differences related to body weight perceptions, nutritional practices, and ideal weight difference (IWD). An alpha level of .05 was used to determine statistical significance. RESULTS Mean ± SD female and male IWD was -6.8 ± 8.8 and 1.3 ± 12.3 lbs, respectively (p < .001). Significant differences in level of agreement regarding perceived body weight effects on performance and dietary practices existed between genders. CONCLUSIONS Significant gender differences may exist regarding body weight perceptions and nutritional practices among collegiate athletes. Deliverance of gender-specific educational information about proper nutritional practices is warranted. To properly tailor interventions to specific sports, research with larger sample sizes is needed.
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Affiliation(s)
- Valerie J Adams
- a Department of Kinesiology , Saginaw Valley State University, University Center , Michigan , USA
| | - Tatum M Goldufsky
- a Department of Kinesiology , Saginaw Valley State University, University Center , Michigan , USA
| | - Rebecca A Schlaff
- a Department of Kinesiology , Saginaw Valley State University, University Center , Michigan , USA
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27
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Compte EJ, Sepulveda AR, Torrente F. A two-stage epidemiological study of eating disorders and muscle dysmorphia in male university students in Buenos Aires. Int J Eat Disord 2015; 48:1092-101. [PMID: 26337256 DOI: 10.1002/eat.22448] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/24/2015] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Studies using traditional screening instruments tend to report a lower prevalence of eating disorders (EDs) in men than is observed in women. It is therefore unclear whether such instruments are valid for the assessment of ED in males. Lack of a formal diagnostic definition of muscle dysmorphia syndrome (MD) makes it difficult to identify men at risk. The study aimed to assess the prevalence of ED and MD in male university students of Buenos Aires. METHOD A cross-sectional, two-stage, representative survey was of 472 male students from six different schools in Buenos Aires, mostly aged between 18 and 28 years. The first stage involved administration of self-report questionnaires (Eating Attitude Test-26; scores ≥15 indicate "at risk" status). In Stage 2 students at risk of developing EDs were evaluated with a clinical interview, the Eating Disorder Examination (EDE; 12th edition). Two control students were interviewed for every at risk student. RESULTS The prevalence of EDs among university male students was 1.9% (n = 9). All participants with an ED presented with illness classified as eating disorder not otherwise specified (EDNOS). Using the Drive for Muscularity Scale (DMS) with a 52-point threshold we identified possible MD in 6.99% (n = 33) of the sample. DISCUSSION The prevalence of ED detected in this study is comparable with previous findings in male populations, and below that observed in female populations. However, the prevalence of possible cases of MD resembles the total rate of EDs in women. Characteristics associated with EDs and MD in men are also discussed.
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Affiliation(s)
- Emilio J Compte
- Department of Biological and Health Psychology, Faculty of Psychology, Autonomous University of Madrid, Madrid, Spain.,Research Department, Fundación Foro, Buenos Aires, Argentina.,School of Human and Behavioral Sciences, Institute of Neurosciences, Favaloro University, Buenos Aires, Argentina
| | - Ana R Sepulveda
- Department of Biological and Health Psychology, Faculty of Psychology, Autonomous University of Madrid, Madrid, Spain
| | - Fernando Torrente
- School of Human and Behavioral Sciences, Institute of Neurosciences, Favaloro University, Buenos Aires, Argentina.,Department of Cognitive Psychotherapy, Institute of Cognitive Neurology (INECO), Buenos Aires, Argentina.,UDP-INECO Foundation Core on Neuroscience (UIFCoN), Diego Portales University, Santiago, Chile
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28
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Smith ACT, Stewart B. Why the war on drugs in sport will never be won. Harm Reduct J 2015; 12:53. [PMID: 26556215 PMCID: PMC4641409 DOI: 10.1186/s12954-015-0087-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 11/02/2015] [Indexed: 11/23/2022] Open
Abstract
Recent exposes of drug use in sports suggest that doping might be more problematic than doping-control test results reveal. A zero-tolerance (ZT) model, which aims to eliminate the use, has dominated the thinking of sport's policy makers over the last 15 years. In light of the limitations associated with ZT-based policy, we propose an alternative policy, one based on controlled use and harm reduction principles. We argue that substance control policies underpinned by harm reduction (HR) principles of social utility and public value will deliver superior social outcomes. First, a harm reduction approach better accommodates the competitive realities of sports and the impact of elite sports' emphasis on performance at all costs. Second, HR prioritises athlete welfare over sport and brand reputation. Finally, while appreciating the regulatory and risk management responsibilities of sports' governing bodies, the HR model offers greater space to the athlete's right to privacy, and right to personal autonomy.
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Affiliation(s)
- Aaron C T Smith
- College of Business and Law, RMIT University, Melbourne, Australia.
| | - Bob Stewart
- College of Sport and Exercise Science, Victoria University, Melbourne, Australia.
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29
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Franko DL, Fuller-Tyszkiewicz M, Rodgers RF, Holmqvist Gattario K, Frisén A, Diedrichs PC, Ricciardelli LA, Yager Z, Smolak L, Thompson-Brenner H, Shingleton RM. Internalization as a mediator of the relationship between conformity to masculine norms and body image attitudes and behaviors among young men in Sweden, US, UK, and Australia. Body Image 2015; 15:54-60. [PMID: 26160708 DOI: 10.1016/j.bodyim.2015.05.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Revised: 04/19/2015] [Accepted: 05/10/2015] [Indexed: 10/23/2022]
Abstract
We examined whether internalization of sociocultural body ideals mediated the relationship between conformity to masculine norms and drive for muscularity, leanness, and thinness in a sample of males from Sweden, US, UK, and Australia. Over six hundred young men [n=142 (Sweden); n=192 (US); n=141 (UK); n=160 (Australia)] completed an online survey that included assessments of masculine role norms, body image, and internalization of sociocultural body ideals. Path analyses confirmed internalization as a mediator between greater conformity to masculine norms and body image measures (drive for thinness, desire for leanness, and desire for muscularity) across the sample. However, significant cross-country differences in the strength of these mediation effects were found. Mediation effects among US, Australian, and Swedish males were comparable, whereas these effects were weaker in the UK sample. Findings confirmed the importance of internalization of sociocultural body ideals in the tested models.
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Affiliation(s)
- Debra L Franko
- Northeastern University, Department of Counseling & Applied Educational Psychology, Boston, MA, USA.
| | | | - Rachel F Rodgers
- Northeastern University, Department of Counseling & Applied Educational Psychology, Boston, MA, USA; Laboratoire de Stress Traumatique, EA 4560, Universite Paul Sabatier, Toulouse, France
| | | | - Ann Frisén
- University of Gothenburg, Department of Psychology, Gothenburg, Sweden
| | - Phillippa C Diedrichs
- University of the West of England, Centre for Appearance Research, Bristol, United Kingdom
| | | | - Zali Yager
- Victoria University, College of Education, Melbourne, Australia
| | - Linda Smolak
- Kenyon College, Department of Psychology, Gambier, OH, USA
| | | | - Rebecca M Shingleton
- Boston University, Department of Psychological and Brain Sciences, Boston, MA, USA
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30
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Tarasenko YN, Chen C, Smalley KB, Warren J. Rural-Urban Differences in Perceptions of Child Overweight Among Children and Adolescents, Their Guardians and Health Care Professionals in the United States. J Rural Health 2015; 32:63-71. [PMID: 26265026 DOI: 10.1111/jrh.12135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
RESEARCH OBJECTIVE Children and adolescents residing in rural environments with higher prevalence of an overweight population may develop inaccurate perceptions of a healthy weight. This study examines rural-urban differences in perceptions of child overweight among overweight (85 ≤ BMI percentile < 95) and obese children (BMI percentile ≥ 95), their guardians and health care providers (HCPs), and children's concomitant weight control. METHODS The cross-sectional study was based on the 2005-2010 NHANES data (1,844 overweight and obese children and adolescents, aged 8-15 years). Rurality was defined using the 2003 RUCC. The weight status was based on the standardized measures of children's height and weight. Children reported whether they considered themselves overweight and whether they were trying to lose weight. Proxy respondents (ie, guardians) reported whether they considered their child to be overweight and whether an HCP had ever told them their child was overweight. Weighted percentages and predicted probabilities from multivariable logistic regressions were calculated, accounting for the complex, multistage, probability sampling design and nonresponse. FINDINGS Rural residents comprised 18.8% of the study population; 41.8% of them were overweight and 58.2% were obese compared to 46.7% and 53.3% of urban peers, respectively. Misperceptions of children's weight status were 11.3 and 6.0 percentage points higher in rural children and their guardians, respectively. Recall of an HCP identification of child overweight was 6.3 percentage points lower among rural versus urban guardians. CONCLUSION Obesity prevention efforts may be fostered by improving accuracy of child overweight perceptions. This may be particularly impactful in rural settings, where weight misperceptions are high.
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Affiliation(s)
- Yelena N Tarasenko
- Departments of Health Policy and Management and Epidemiology, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, Georgia
| | - Chen Chen
- Department of Health Policy and Management, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, Georgia
| | - K Bryant Smalley
- Rural Health Research Institute, Georgia Southern University, Statesboro, Georgia
| | - Jacob Warren
- Center for Rural Health and Health Disparities, Mercer University School of Medicine, Macon, Georgia
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31
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Bergeron MF, Mountjoy M, Armstrong N, Chia M, Côté J, Emery CA, Faigenbaum A, Hall G, Kriemler S, Léglise M, Malina RM, Pensgaard AM, Sanchez A, Soligard T, Sundgot-Borgen J, van Mechelen W, Weissensteiner JR, Engebretsen L. International Olympic Committee consensus statement on youth athletic development. Br J Sports Med 2015; 49:843-51. [PMID: 26084524 DOI: 10.1136/bjsports-2015-094962] [Citation(s) in RCA: 396] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Michael F Bergeron
- Youth Sports of the Americas, Birmingham, Alabama, USA Lemak Sports Medicine, Birmingham, Alabama, USA
| | - Margo Mountjoy
- Department of Family Medicine, Michael G DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada IOC Medical Commission-Games Group
| | - Neil Armstrong
- Children's Health and Exercise Research Centre, St Luke's Campus, University of Exeter, Exeter, UK
| | - Michael Chia
- Physical Education & Sports Science, National Institute of Education, Nanyang Technological University, Singapore
| | - Jean Côté
- Queen's University, School of Kinesiology and Health Studies, Kingston, Ontario, Canada
| | - Carolyn A Emery
- Alberta Children's Hospital Research Institute for Child and Maternal Health Pediatrics and Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
| | - Avery Faigenbaum
- Department of Health & Exercise Science, The College of New Jersey, Ewing, New Jersey, USA
| | - Gary Hall
- Hallway Consulting, Los Olivos, California, USA
| | - Susi Kriemler
- Institut für Epidemiologie, Biostatistik und Prävention, Gruppe Children, Physical Activity and Health (CHIPAH), Universität Zürich, Switzerland
| | - Michel Léglise
- International Gymnastics Federation (FIG), Paris, France
| | - Robert M Malina
- University of Texas at Austin, Austin, Texas, USA Tarleton State University, Stephenville, Texas, USA
| | - Anne Marte Pensgaard
- Department of Coaching and Psychology, Norwegian School of Sport Sciences, Oslo, Norway
| | - Alex Sanchez
- International Basketball Federation (FIBA), Switzerland
| | - Torbjørn Soligard
- Medical & Scientific Department, International Olympic Committee, Lausanne, Switzerland
| | | | - Willem van Mechelen
- Department of Public & Occupational Health and EMGO+ Institute, VU University Medical Center Amsterdam, Amsterdam, The Netherlands School of Human Movement and Nutrition Sciences, University of Queensland, Brisbane, Australia Division of Exercise Science and Sports Medicine, Department of Human Biology, University of Cape Town, Cape Town, South Africa
| | | | - Lars Engebretsen
- Medical & Scientific Department, International Olympic Committee, Lausanne, Switzerland Orthopaedic Center, Ullevaal University Hospital, Oslo, Norway
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Vargo EJ, James RA, Agyeman K, MacPhee T, McIntyre R, Ronca F, Petróczi A. Perceptions of assisted cognitive and sport performance enhancement among university students in England. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.peh.2015.02.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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