Performance-enhancing and health-compromising behaviors in youth sports: A systematic mixed-studies review

Aubel, 2014, An alternative approach to the prevention of doping in cycling, International Journal of Drug Policy, 25, 1094, 10.1016/j.drugpo.2014.08.010 Backhouse, 2015 Barkoukis, 2019, The role of the athletes’ entourage on attitudes to doping, Journal of Sports Sciences, 37, 2483, 10.1080/02640414.2019.1643648 Barkoukis, 2015, Nutritional supplement and doping use in sport: Possible underlying social cognitive processes, Scandinavian Journal of Medicine & Science in Sports, 25, e582, 10.1111/sms.12377 Barkoukis, 2014, Beliefs about the causes of success in sports and susceptibility for doping use in adolescent athletes, Journal of Sports Sciences, 32, 212, 10.1080/02640414.2013.819521 Barkoukis, 2011, Motivational and sportspersonship profiles of elite athletes in relation to doping behavior, Psychology of Sport and Exercise, 12, 205, 10.1016/j.psychsport.2010.10.003 Barkoukis, 2013, Motivational and social cognitive predictors of doping intentions in elite sports: An integrated approach, Scandinavian Journal of Medicine & Science in Sports, 23, e330, 10.1111/sms.12068 Blank, 2016, Predictors of doping intentions, susceptibility, and behaviour of elite athletes: A meta-analytic review, SpringerPlus, 5, 1333, 10.1186/s40064-016-3000-0 Braun, 2006, Using thematic analysis in psychology, Qualitative Research in Psychology, 3, 77, 10.1191/1478088706qp063oa Braun, 2016, Using thematic analysis in sport and exercise research, 213 Breda, 2014, Energy drink consumption in europe: A review of the risks, adverse health effects, and policy options to respond, Frontiers in Public Health, 14, 1 Chan, 2015, Self-determined motivation in sport predicts anti-doping motivation and intention: A perspective from the trans-contextual model, Journal of Science and Medicine in Sport, 18, 315, 10.1016/j.jsams.2014.04.001 Chan, 2015, Self-control, self-regulation, and doping in sport: A test of the strength–energy model, Journal of Sport and Exercise Psychology, 37, 199, 10.1123/jsep.2014-0250 Connor, 2009, Towards a sociology of drugs in sport, Sport in Society, 12, 327, 10.1080/17430430802673676 Cook, 2020, Psychosocial functioning of Olympic coaches and its perceived effect on athlete performance: A systematic review, International Review of Sport and Exercise Psychology, 14, 1 da Silva, 2017, Doping survey in the youth school games in Brazil, Revista Brasileira De Medicina Do Esporte, 23, 436, 10.1590/1517-869220172306163303 Danioni, 2019, The relations between adolescents’ personal values and prosocial and antisocial behaviours in team sports, International Journal of Sport and Exercise Psychology, 17, 459, 10.1080/1612197X.2017.1367951 de Hon, 2015, Prevalence of doping use in elite sports: A review of numbers and methods, Sports Medicine, 45, 57, 10.1007/s40279-014-0247-x Denham, 2014, High school sports participation and substance use: Differences by Sport, Race, and Gender, Journal of Child & Adolescent Substance Abuse, 23, 145, 10.1080/1067828X.2012.750974 Dixon-Woods, 2005, Synthesising qualitative and quantitative evidence: A review of possible methods, Journal of Health Services Research & Policy, 10, 45, 10.1177/135581960501000110 Edwards, 2017, Definitions, foundations and associations of physical literacy: A systematic review, Sports Medicine, 47, 113, 10.1007/s40279-016-0560-7 Frantzen, 2016, Meta-integration for synthesizing data in a systematic mixed studies review: Insights from research on autism spectrum disorder, Quality & Quantity, 50, 2251, 10.1007/s11135-015-0261-6 Friesen, 2013, Emotion in sport: Considering interpersonal regulation strategies, International Review of Sport and Exercise Psychology, 6, 139, 10.1080/1750984X.2012.742921 Gough, 2012, Clarifying differences between review designs and methods, Systematic Reviews, 1, 28, 10.1186/2046-4053-1-28 Hanton, 2005, Stress in elite sport performers: A comparative study of competitive and organizational stressors, Journal of Sports Sciences, 23, 1129, 10.1080/02640410500131480 Hong, 2018, The mixed methods appraisal tool (MMAT) version 2018 for information professionals and researchers, Education for Information, 34, 285, 10.3233/EFI-180221 Hong, 2018, Improving the usefulness of a tool for appraising the quality of qualitative, quantitative and mixed methods studies, the Mixed Methods Appraisal Tool (MMAT), Journal of Evaluation in Clinical Practice, 24, 459, 10.1111/jep.12884 Hurst, 2019, Sport supplement use predicts doping attitudes and likelihood via sport supplement beliefs, Journal of Sports Sciences, 37, 1734, 10.1080/02640414.2019.1589920 Inhelder, 1958 Johnson, 2011, Psychological predictors of sport injuries among junior soccer players, Scandinavian Journal of Medicine & Science in Sports, 21, 129, 10.1111/j.1600-0838.2009.01057.x Laure, 2007, Doping prevalence among preadolescent athletes: A 4-year follow-up, British Journal of Sports Medicine, 41, 660, 10.1136/bjsm.2007.035733 Laux, 2015, Recovery-stress balance and injury risk in professional football players: A prospective study, Journal of Sport Sciences, 33, 2140, 10.1080/02640414.2015.1064538 Lazuras, 2017, More than a feeling: The role of anticipated regret in predicting doping intentions in adolescent athletes, Psychology of Sport and Exercise, 30, 196, 10.1016/j.psychsport.2017.03.003 Lazuras, 2015, Toward an integrative model of doping use: An empirical study with adolescent athletes, Journal of Sport and Exercise Psychology, 37, 37, 10.1123/jsep.2013-0232 Ljungqvist, 2016 Madigan, 2016, Perfectionism and attitudes towards doping in junior athletes, Journal of Sports Sciences, 34, 700, 10.1080/02640414.2015.1068441 Mayer, 2018, Compete or rest? Willingness to compete hurt among adolescent elite athletes, Psychology of Sport and Exercise, 35, 143, 10.1016/j.psychsport.2017.12.004 Mayer, 2018, Presenteeism in the elite sports workplace: The willingness to compete hurt among German elite handball and track and field athletes, International Review for the Sociology of Sport, 53, 49, 10.1177/1012690216640525 Mellalieu, 2009, A competitive anxiety review: Recent directions in sport psychology research, 1 Morente-Sánchez, 2013, Doping in sport: A review of elite athletes’ attitudes, beliefs, and knowledge, Sports Medicine, 43, 395, 10.1007/s40279-013-0037-x Mroczkowska, 2011, Accepted level of risk of doping use in the view of young athletes, Biology of Sport, 28, 183, 10.5604/959291 Nicholls, 2017, Children's first experience of taking anabolic-androgenic steroids can occur before their 10th birthday: A systematic review identifying 9 factors that predicted doping among young people, Frontiers in Psychology, 8, 1 Ohl, 2013, The socialization of young cyclists and the culture of doping, International Review for the Sociology of Sport, 50, 865, 10.1177/1012690213495534 O'Reilly, 2020, Social media and adolescent mental health: The good, the bad and the ugly, Journal of Mental Health, 29, 200, 10.1080/09638237.2020.1714007 O'Reilly, 2018, Is social media bad for mental health and wellbeing? Exploring the perspectives of adolescents, Clinical Child Psychology and Psychiatry, 23, 601, 10.1177/1359104518775154 Page, 2021, The PRISMA 2020 statement: An updated guideline for reporting systematic reviews, British Medical Journal, 372, n71, 10.1136/bmj.n71 Pappa, 2012, ‘It was my thought… he made it a reality’: Normalization and responsibility in athletes’ accounts of performance-enhancing drug use, International Review for the Sociology of Sport, 48, 277, 10.1177/1012690212442116 Petersen, 1997, What is special about adolescence?, 3 Pluye, 2014, Combining the power of stories and the power of numbers: Mixed methods research and mixed studies reviews, Annual Review of Public Health, 35, 29, 10.1146/annurev-publhealth-032013-182440 Reeve, 2012, Understanding and promoting autonomous self-regulation: A self-determination theory perspective, 223 Rodríguez-Serrano, 2018, Young athletes’ health knowledge system: Qualitative analysis of health learning processes in adolescent sportspersons, Scandinavian Journal of Medicine & Science in Sports, 28, 1272, 10.1111/sms.13020 Rutter, 1997 Schneider, 2019, Playing hurt: Competitive sport despite being injured or in pain, Deutsche Zeitschrift Für Sportmedizin, 2019, 43, 10.5960/dzsm.2019.365 Schnell, 2014, Giving everything for athletic success! Sports-specific risk acceptance of elite adolescent athletes, Psychology of Sport and Exercise, 15, 165, 10.1016/j.psychsport.2013.10.012 Scott, 2019, Teammate influences on the eating attitudes and behaviours of athletes: A systematic review, Psychology of Sport and Exercise, 43, 183, 10.1016/j.psychsport.2019.02.006 Thomas, 2008, Methods for the thematic synthesis of qualitative research in systematic reviews, BMC Medical Research Methodology, 8, 45, 10.1186/1471-2288-8-45 Turner, 1994, Self and collective: Cognition and social context, Personality and Social Psychology Bulletin, 20, 454, 10.1177/0146167294205002 von Rosen, 2017, Multiple factors explain injury risk in adolescent elite athletes: Applying a biopsychosocial perspective, Scandinavian Journal of Medicine & Science in Sports, 27, 2059, 10.1111/sms.12855 von Rosen, 2019, Subjective well-being is associated with injury risk in adolescent elite athletes, Physiotherapy Theory and Practice, 1 von Rosen, 2018, Young, talented and injured: Injury perceptions, experiences and consequences in adolescent elite athletes, European Journal of Sport Science, 18, 731, 10.1080/17461391.2018.1440009 Weithorn, 1982, The competency of children and adolescents to make informed treatment decisions, Child Development, 53, 1589, 10.2307/1130087 Wilson, 2001, Doping in elite sport: The politics of drugs in the Olympic movement, Human Kinetics Yeretzian, 2009, ‘It won't happen to me’: The knowledge–attitude nexus in adolescent smoking, Journal of Public Health, 31, 354, 10.1093/pubmed/fdp031 Yesalis, 2000, Doping among adolescent athletes, Best Practice & Research Clinical Endocrinology & Metabolism, 14, 25, 10.1053/beem.2000.0051