Logo of gymnast on rings – personal brand mark of Dr Stefan Kolimechkov
Kensington Gymnastics MagazineIssue 5 · September 2026
Issue 5 · End Matter

Sources &
Further Reading

A consolidated alphabetical record of the sources used throughout this issue. Chapter-local numbering has been removed; DOI, PubMed and official-source links remain active in this web edition.

A–D

17 references from the consolidated Issue 5 evidence record

  1. Anima Gymnastics Club. (n.d.). Anima Gymnastics Club. Retrieved 29 September 2026. Official website.
  2. Beck, K. L., von Hurst, P. R., O'Brien, W. J., & Badenhorst, C. E. (2021). Micronutrients and athletic performance: A review. Food and Chemical Toxicology, 158, 112618. DOI: 10.1016/j.fct.2021.112618. PubMed PMID: 34662692.
  3. Binstead, J. T., & Varacallo, M. A. (2026). Anatomy, bony pelvis and lower limb: Calf. In StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. Updated 31 January 2026. NCBI Bookshelf · PubMed · PMID 29083629.
  4. Bourke, M., Wang, H. F. W., Wicks, H., Barnett, L. M., Cairney, J., & Fortnum, K. (2025). Children's and adolescents' actual motor competence, perceived physical competence and physical activity: A structural equation modelling meta-analysis. Sports Medicine, 55(8), 1923-1936. doi:10.1007/s40279-025-02233-2. PMID 40329142.
  5. British Gymnastics. (15 July 2021). Introducing Rise Gymnastics! Official article.
  6. British Gymnastics. (2025). Safeguarding Policy: Training & Holistic Development (Version 1, March 2025). Official PDF.
  7. British Gymnastics. (2025). Safeguarding Policy: Training & Holistic Development: Guidance for good practices (Version 1, March 2025). Official PDF.
  8. British Gymnastics. (2026). Adult British Championships: MAG PRO Over 30 all-around results. Official results.
  9. British Gymnastics. (25 August 2021). Developing Rise Hub. Official article.
  10. British Gymnastics. Programme. Club Hub Resources. Accessed 20 Sep 2026. Official page.
  11. Brown DMY, Cairney J, Azimi S, et al. Towards the development of a quality youth sport experience measure: Understanding participant and stakeholder perspectives. PLOS ONE. 2023;18(7):e0287387. doi:10.1371/journal.pone.0287387 · PubMed.
  12. Brtva, P., Bizovská, L., Canty, B., Skypala, J., Irwin, G., & Farana, R. (2025). Modifying landing mat properties elicits different lower limb biomechanical responses in gymnasts and non-gymnasts. Scientific Reports, 15(1), 42490. DOI · PubMed · PubMed Central · PMID 41309750.
  13. Bulgarian News Agency. Report identifying Iliya Yanev as Daniel Trifonov’s coach. Independent source.
  14. Cashman, K. D., Ritz, C., Kiely, M., & ODIN Collaborators. (2017). Improved dietary guidelines for vitamin D: Application of individual participant data (IPD)-level meta-regression analyses. Nutrients, 9(5), 469. DOI; PubMed PMID: 28481259.
  15. Christoforidou, A., Patikas, D. A., Bassa, E., Paraschos, I., Lazaridis, S., Christoforidis, C., & Kotzamanidis, C. (2017). Landing from different heights: Biomechanical and neuromuscular strategies in trained gymnasts and untrained prepubescent girls. Journal of Electromyography and Kinesiology, 32, 1–8. DOI · PubMed · PMID 27863284.
  16. Cowin, J., Nimphius, S., Fell, J., Culhane, P., & Schmidt, M. (2022). A proposed framework to describe movement variability within sporting tasks: A scoping review. Sports Medicine-Open, 8, 85. doi:10.1186/s40798-022-00473-4. PMID 35759128.
  17. Department of Health and Social Care. (2026, 23 June). Vitamin D: Written question 9754 [Parliamentary answer]. Official UK Parliament record.
D–E

28 references from the consolidated Issue 5 evidence record

  1. Deutscher Turner-Bund. (1 June 2025). WK 21400I: International Masters Team Cup MAG — Internationales Deutsches Turnfest 2025 Leipzig. Official final men's team results.
  2. Deutscher Turner-Bund. (1 June 2025). WK 21500I: International Masters Team Cup WAG — Internationales Deutsches Turnfest 2025 Leipzig. Official final women's team results.
  3. Deutscher Turner-Bund. (2025). International Masters Team Cup event entry. Official date and Sporthalle Brüderstraße venue.
  4. Deutscher Turner-Bund. (2025). Spot an für das Internationale Deutsche Turnfest. Official report on the whole festival, not the Masters event.
  5. Enomoto, S., & Tottori, N. (2025). Muscle morphological adaptations to resistance training and sports participation in children and adolescents: A scoping review. Frontiers in Sports and Active Living, 7, 1646835. doi:10.3389/fspor.2025.1646835. PMID 41132552.
  6. España-Romero, V., Artero, E. G., Jiménez-Pavón, D., Cuenca-García, M., Ortega, F. B., Castro-Piñero, J., Sjöström, M., Castillo-Garzón, M. J., & Ruiz, J. R. (2010). Assessing health-related fitness tests in the school setting: Reliability, feasibility and safety; the ALPHA Study. International Journal of Sports Medicine, 31(7), 490-497. doi:10.1055/s-0030-1251990. PMID 20432194.
  7. European College of Sport Science. (2026). ECSS Lausanne 2026. University of Lausanne and EPFL. Official congress site. Accessed 9 September 2026.
  8. European College of Sport Science. (2026). Fellowship. Official Fellowship information and Fellows directory. Official ECSS Fellowship page. Accessed 11 September 2026.
  9. European College of Sport Science. (2026). Where We Meet. Annual Congress history and future host list. Official source. Accessed 9 September 2026.
  10. European Gymnastics. (2014). End of the European Artistic Gymnastics Championships in Sofia. Official source.
  11. European Gymnastics. (2026). Decisions of the 4th Virtual Extraordinary General Assembly. Official communication.
  12. European Gymnastics. 11th Senior European Championships — Artistic Gymnastics, Leipzig 2025: official result book. Official result book.
  13. European Gymnastics. 1955 European Championships in Men’s Artistic Gymnastics. Official event archive.
  14. European Gymnastics. 1957 European Championships in Women’s Artistic Gymnastics. Official event archive.
  15. European Gymnastics. 1994 European Championships in Men’s Artistic Gymnastics. Official event archive.
  16. European Gymnastics. 1994 European Championships in Women’s Artistic Gymnastics. Official event archive.
  17. European Gymnastics. 1996 MAG result book. Official result book.
  18. European Gymnastics. 1996 WAG result book. Official result book.
  19. European Gymnastics. 2005 Debrecen result book. Official result book.
  20. European Gymnastics. 2025 Men’s and Women’s Artistic Europeans, Leipzig - overview. Official source.
  21. European Gymnastics. 2026 European Championships in Men’s Artistic Gymnastics, Zagreb. Official event page.
  22. European Gymnastics. 2026 European Championships in Women’s Artistic Gymnastics, Zagreb. Official event page.
  23. European Gymnastics. 37th European Men’s Artistic Gymnastics Championships - official result book, Zagreb 2026. Official result book.
  24. European Gymnastics. European Championships event archive. Official archive.
  25. European Gymnastics. Golden start for Melnikova in Zagreb. Official source.
  26. European Gymnastics. Highlights of the men’s #Zagreb2026. Official source.
  27. European Gymnastics. Highlights of the women’s #Zagreb2026. Official source.
  28. European Gymnastics. History. Official source. First men’s championship context.
E–H

23 references from the consolidated Issue 5 evidence record

  1. European Gymnastics. MAG Zagreb 2026 preview. Official source.
  2. European Gymnastics. Men’s all-around report, Zagreb 2026. Official source.
  3. European Gymnastics. WAG Zagreb 2026 preview. Official source.
  4. European Gymnastics. Women’s apparatus-final report, Zagreb 2026. Official source.
  5. European Gymnastics. Women’s team-final report, Zagreb 2026. Official source.
  6. Event final result sheet. (6 October 2023). Men's Competition: Gymnastics Masters Team World Cup Einbeck. Primary final men's team result.
  7. Event final result sheet. (6 October 2023). Women's Competition: Gymnastics Masters Team World Cup Einbeck. Primary final women's team result.
  8. Fédération Internationale de Gymnastique. Men’s Artistic Gymnastics Code of Points 2025–2028. FIG Code PDF.
  9. Fitch, A. S., Mara, J., Lord, F., & Waddington, G. (2026). Key factors impacting performance health during growth and maturation in adolescent competitive aesthetic and acrobatic athletes: A systematic review. Sports Medicine, 56(7), 1701–1721. DOI · PubMed.
  10. Foley, R. C. A., Callaghan, D. H., Forman, G. N., Graham, J. D., Holmes, M. W. R., & La Delfa, N. J. (2025). A comprehensive scoping review and meta-analysis of upper limb strength asymmetry. Scientific Reports, 15, 4636. doi:10.1038/s41598-025-87413-w. PMID 39920213.
  11. Fredriksen, P. M., Kharlova, I., Hæhre, M. V., & Mamen, A. (2026). Longitudinal trends in physical activity and sedentary behaviour among school children in Norway: The Health Oriented Pedagogical Project (HOPP). PLOS ONE, 21(4), e0345363. doi:10.1371/journal.pone.0345363. PMID 41950266.
  12. Gao, Z., Chee, C. S., Wazir, M. R. W. N., Wang, J., Zheng, X., & Wang, T. (2024). The role of parents in the motivation of young athletes: A systematic review. Frontiers in Psychology, 14, 1291711. DOI · PubMed
  13. Gash, M. C., Kandle, P. F., Murray, I. V., & Varacallo, M. A. (2023). Physiology, muscle contraction. In StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. Updated 1 April 2023. NCBI Bookshelf · PubMed · PMID 30725825.
  14. Grauduszus, M., Koch, L., Wessely, S., & Joisten, C. (2024). School-based promotion of physical literacy: A scoping review. Frontiers in Public Health, 12, 1322075. doi:10.3389/fpubh.2024.1322075. PMID 38525332.
  15. Greater London Authority. (2018). London Boroughs. Official Ordnance Survey Boundary-Line polygons. London Datastore.
  16. GymData. (2024). BUCS Gymnastics Championships 2024: MAG Grade 2 results. Official results.
  17. Gymdata. (2026, July 5). 2026 London Community Competition: Event information. Event record.
  18. Gymdata. (2026, July 5). 2026 London Community Competition: Level 2 overall all-around rankings. Results page.
  19. GYMmedia. (18 September 2022). Japanese victory in the first gymnastics senior international meet against Germany. Contemporary event report; 2022 date, venue and bilateral character.
  20. GYMmedia. (2023). 1st International SENIORS GYM TEAM CUP 2023. Contemporary reporting and event-name variant.
  21. GYMmedia. (4 June 2024). German and USA victories at the II. International Seniors GYM TEAM Cup 2024. Contemporary post-event report; team countries and Brazil/Canada individual starters.
  22. Gymnastics Forza. (n.d.). Forza Rings & Backflip System. Accessed 25 September 2026. Official product page.
  23. Hecht, C., Bank, N., Cook, B., & Mistovich, R. J. (2023). Nutritional recommendations for the young athlete: Current concept review. Journal of the Pediatric Orthopaedic Society of North America, 5(1), Article 599. DOI: 10.55275/JPOSNA-2023-599. PubMed PMID: 40433081.
H–M

20 references from the consolidated Issue 5 evidence record

  1. Hu, Y., & Raja, A. (2026). Anatomy, bony pelvis and lower limb, hamstring muscle. In StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. Updated 31 January 2026. NCBI Bookshelf · PubMed · PMID 31536294.
  2. InterSportStats. European Men’s Artistic Gymnastics Championships: edition record. Historical database.
  3. InterSportStats. European Women’s Artistic Gymnastics Championships: edition record. Historical database.
  4. Jago R, Brockman R, Fox KR, et al. Friendship groups and physical activity: qualitative findings on how physical activity is initiated and maintained among 10–11 year old children. Int J Behav Nutr Phys Act. 2009;6:4. doi:10.1186/1479-5868-6-4 · PubMed.
  5. Japan Gymnastics Federation. (6 September 2026). Announcement concerning Masters Gymnastics World Cup 2027 [マスターズ体操ワールドカップ2027の開催について]. Official announcement (Japanese).
  6. Japan Gymnastics Federation. (September 2026). Outline of Masters Gymnastics World Cup 2027 [体操JAPAN OPEN60周年記念イベント マスターズ体操ワールドカップ2027の開催について（案）]. Official draft outline (Japanese); planned date, venue, organiser, formats and rule-development timetable. Its expressions of interest and capacity estimates are not completed participation.
  7. Kayser, B., Aminian, K., Millet, G., Tsolakidis, E., Jones, A., Thompson, J. L., & Piacentini, M. F. (Eds.). (2026). Book of Abstracts of the 31st Annual Congress of the European College of Sport Science, Lausanne, Switzerland, 7-10 July 2026. European College of Sport Science. ISBN 978-3-9818414-9-7. Official eBook of Abstracts.
  8. Khan, A., & Arain, A. (2023). Anatomy, bony pelvis and lower limb: Anterior thigh muscles. In StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing. Updated 17 March 2023. NCBI Bookshelf · PubMed · PMID 30860696.
  9. Kolimechkov S, Yanev I, Kiuchukov I, Petrov L, Alexandrova A, Zaykova D, Stoimenov E. (2019). Nutritional status and body composition of young artistic gymnasts from Bulgaria. Journal of Applied Sports Sciences, 3(1), 39–52. DOI.
  10. Kolimechkov, S. (2015). 2015 London Regional. STK SPORT. Event record.
  11. Kolimechkov, S. (2016). 2016 London Open. STK SPORT. Event record.
  12. Kolimechkov, S. (2023). 2023 Adult Gymnastics British Championships. STK SPORT. Event record.
  13. Kolimechkov, S. (n.d.). Sports Career & Lifestyle. STK SPORT. Accessed 25 September 2026. Official page.
  14. Kolimechkov, S., & Monacis, D. (2025). Recreational gymnastics improves health-related physical fitness in primary school children. In Proceedings of the 4th International Scientific Congress "Applied Sports Sciences" (pp. 212-219). doi:10.37393/ICASS2025/33.
  15. Kolimechkov, S., Petrov, L., & Alexandrova, A. (2021). Artistic gymnastics improves biomarkers related to physical fitness and health at primary school age. International Journal of Applied Exercise Physiology, 10(1), 115-128. Full article.
  16. Kristiania University College. (2026). Asgeir Mamen: Professor, Department of Health and Exercise. Official staff profile. Accessed 9 September 2026.
  17. London Gymnastics. (2026, June). Community Competition Programme: A regional competition pathway delivered under London Gymnastics (Version 2). Programme handbook supplied to affiliated London clubs.
  18. London Gymnastics. (2026). Competition work plan: London Community Competition, 5 July 2026. Event document supplied to participating clubs.
  19. London Gymnastics. (n.d.). London Gymnastics. British Gymnastics. Retrieved 29 September 2026. Official regional page.
  20. Malfait, B., Dingenen, B., Smeets, A., Staes, F., Pataky, T., Robinson, M. A., Vanrenterghem, J., & Verschueren, S. (2016). Knee and hip joint kinematics predict quadriceps and hamstrings neuromuscular activation patterns in drop jump landings. PLOS ONE, 11(4), e0153737. DOI · PubMed · PubMed Central · PMID 27101130.
M–N

25 references from the consolidated Issue 5 evidence record

  1. Mamen, A. (2011). Aspects of using physical training on patients with substance dependence and additional mental distress [Doctoral thesis, University of Bergen]. Bergen Open Research Archive.
  2. Mamen, A. (2026, 9 September). Expert Lens interview for Kensington Gymnastics Magazine [Written interview].
  3. Masters Code technical committee. (May 2025). 2025–2028 Masters Code of Points for Men's and Women's Masters Artistic Gymnastics. DTB-hosted published Code, including age-group tables, apparatus provisions, named committee and specified team appendix.
  4. Mills, C., Pain, M. T. G., & Yeadon, M. R. (2009). Reducing ground reaction forces in gymnastics’ landings may increase internal loading. Journal of Biomechanics, 42(6), 671–678. DOI · PubMed · PMID 19281989.
  5. Moeskops, S., Pedley, J. S., Oliver, J. L., & Lloyd, R. S. (2022). The influence of competitive level on stretch-shortening cycle function in young female gymnasts. Sports, 10(7), 107. DOI · PubMed · PubMed Central · PMID 35878118.
  6. Molyneux, J. (n.d.). Why parents and carers matter. Sport England. Accessed 21 September 2026. Official guidance
  7. Mortensen, C., Damsgaard, C. T., Hauger, H., Ritz, C., Lanham-New, S. A., Smith, T. J., Hennessy, Á., Dowling, K., Cashman, K. D., Kiely, M., & Mølgaard, C. (2016). Estimation of the dietary requirement for vitamin D in white children aged 4–8 y: A randomized, controlled, dose-response trial. American Journal of Clinical Nutrition, 104(5), 1310–1317. DOI; PubMed PMID: 27733403.
  8. National Institutes of Health, Office of Dietary Supplements. (n.d.). Vitamin D: Health professional fact sheet. Official US guidance.
  9. National Sports Academy “Vassil Levski”. Department of Gymnastics staff directory. Official source.
  10. NHS. (2023). Knee pain. Last reviewed 21 December 2023; next review due 21 December 2026. Official NHS page. Accessed 12 September 2026.
  11. NHS. (2025). Limping in children. Last reviewed 23 January 2025; next review due 23 January 2028. Official NHS page. Accessed 12 September 2026.
  12. NHS. (2026). Early or delayed puberty (reviewed 2 April 2026). Official NHS page.
  13. NHS. (n.d.). B vitamins and folic acid — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  14. NHS. (n.d.). Child healthy growth and weight. Official NHS page.
  15. NHS. (n.d.). Overview — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  16. NHS. (n.d.). The vegan diet. Official NHS page.
  17. NHS. (n.d.). Vitamin A — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  18. NHS. (n.d.). Vitamin C — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  19. NHS. (n.d.). Vitamin D — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  20. NHS. (n.d.). Vitamin E — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  21. NHS. (n.d.). Vitamin K — Vitamins and minerals. Official NHS page. Last reviewed 3 August 2020.
  22. NHS. (n.d.). Vitamins for children. Official NHS page. Last reviewed 30 May 2024.
  23. Nie, Y., You, Z., & Zhang, S. (2026). Unveiling the paradoxical relationship between physical activity and fundamental movement skill in early-year schoolchildren: A preliminary study [Conference abstract 1168]. In B. Kayser, K. Aminian, G. Millet, E. Tsolakidis, A. Jones, J. L. Thompson, & M. F. Piacentini (Eds.), Book of Abstracts of the 31st Annual Congress of the European College of Sport Science (p. 628). European College of Sport Science. Official abstract.
  24. Niedersächsischer Turner-Bund. (2 June 2023). International Master’s Gymnastics Team Trophy: Call for Participation. Advance notice; date, venue and intended format, not a final entry list.
  25. NSPCC Sport. Reporting concerns. Accessed 20 Sep 2026. Official page.
N–U

23 references from the consolidated Issue 5 evidence record

  1. NSPCC. Supporting your child in their sporting life. Accessed 20 Sep 2026. Official page.
  2. Office for Health Improvement and Disparities. (2016; updated 2 January 2024). The Eatwell Guide. Official UK Government publication.
  3. Ommundsen, Y., Roberts, G. C., Lemyre, P.-N., & Miller, B. W. (2006). Parental and coach support or pressure on psychosocial outcomes of pediatric athletes in soccer. Clinical Journal of Sport Medicine, 16(6), 522–526. DOI · PubMed
  4. Parry, G. N., Williams, S., McKay, C. D., Johnson, D. J., Bergeron, M. F., & Cumming, S. P. (2024). Associations between growth, maturation and injury in youth athletes engaged in elite pathways: A scoping review. British Journal of Sports Medicine, 58(17), 1001–1010. DOI · PubMed.
  5. Pavlasová, K., Bizovská, L., Gába, A., Farana, R., & Janura, M. (2025). Biomechanics of landing in gymnasts: A scoping review. Frontiers in Sports and Active Living, 7, 1602058. DOI · PubMed · PubMed Central · PMID 40546775.
  6. Quatman-Yates, C. C., Quatman, C. E., Meszaros, A. J., Paterno, M. V., & Hewett, T. E. (2012). A systematic review of sensorimotor function during adolescence: A developmental stage of increased motor awkwardness? British Journal of Sports Medicine, 46(9), 649–655. DOI · PubMed.
  7. Ribecca, L. (2026). Written interview and approved contributor biography supplied to Kensington Gymnastics Magazine. Unpublished contributor material.
  8. Royal Borough of Kensington and Chelsea. (2025). Get fit for free in RBKC. Our Borough, Summer 2025. Official magazine.
  9. Scientific Advisory Committee on Nutrition. (2016). Vitamin D and health. Official UK Government report.
  10. Scientific Advisory Committee on Nutrition. (2024). Fortifying foods and drinks with vitamin D: main report. Official UK Government report.
  11. ScoreFlippers/KCGA. (2026). Masters Gymnastics World Cup: still-rings result extract. Unpublished result extract supplied to KGM for fact-checking.
  12. Sharpe, N. (2026). Written answers, biography and follow-up confirmation of the 2024 and 2026 US-event participation totals supplied to Kensington Gymnastics Magazine by the contributor for this chapter. Unpublished first-person testimony; source retained in the Issue 5 editorial record.
  13. Sport England. Children and young people. Accessed 20 Sep 2026. Official page.
  14. STK SPORT. (2026). European College of Sport Science. STK SPORT website. Accessed 11 September 2026.
  15. Stricker, P. R., Faigenbaum, A. D., McCambridge, T. M., & Council on Sports Medicine and Fitness. (2020). Resistance training for children and adolescents. Pediatrics, 145(6), e20201011. doi:10.1542/peds.2020-1011. PMID 32457216.
  16. The Royal Parks. (2016). Kensington Gardens Management Plan 2016–2026. Official plan.
  17. The Royal Parks. (n.d.). The history of Kensington Gardens. Accessed 25 September 2026. Official page.
  18. U.S. Department of Health and Human Services. (2018). Physical Activity Guidelines for Americans (2nd ed.). Official report.
  19. United Club Gymnastics. (2 December 2025, last updated). 2026 UCG Masters Individual World Cup Format. Event format explicitly excluding a team contest.
  20. United Club Gymnastics. (2024). 2024 Masters Gymnastics World Cup. Official organiser programme; date and MIT venue.
  21. United Club Gymnastics. (2026). 2026 Masters Gymnastics Individual World Cup. Current organiser Masters page; event details and governing documents.
  22. United Club Gymnastics. (4 December 2025, last updated). UCG Masters Rules Policy, version 2.01. Policy linked from the official UCG Masters Rules page; use for the 2026 individual-event rule hierarchy, not as a substitute for the international Code.
  23. University of Basel. (2025, 26 June). Faculty of Medicine: Two new professors. Sebastian Ludyga appointed Professor of Sport Pedagogy and Health Development from 1 July 2025. Official university announcement.
U–Y

10 references from the consolidated Issue 5 evidence record

  1. USA Gymnastics. (n.d.). Glossary of Terms. Official glossary.
  2. Veugelers, P. J., & Ekwaru, J. P. (2014). A statistical error in the estimation of the recommended dietary allowance for vitamin D. Nutrients, 6(10), 4472–4475. DOI; PubMed PMID: 25333201.
  3. Woods, C. T., McKeown, I., Rothwell, M., Araújo, D., Robertson, S., & Davids, K. (2020). Sport practitioners as sport ecology designers: How ecological dynamics has progressively changed perceptions of skill "acquisition" in the sporting habitat. Frontiers in Psychology, 11, 654. doi:10.3389/fpsyg.2020.00654. PMID 32390904.
  4. World Gymnastics. (n.d.). Age Group Programme. Official programme page.
  5. World Gymnastics. (n.d.). Gymnastics for All: Presentation. Accessed 21 September 2026. Official page
  6. World Gymnastics. (n.d.). MAG 2025-2028 international judges' courses: Registrations. Retrieved 29 September 2026. Official registration list.
  7. World Health Organization. (2020). WHO guidelines on physical activity and sedentary behaviour. Official publication.
  8. World Health Organization. (2021). Promoting physical activity through schools: A toolkit. ISBN 978-92-4-003592-8. Official WHO publication page.
  9. Yanev, I. (2026, September). Expert Lens interview for Kensington Gymnastics Magazine [Written interview].
  10. Youth Sport Trust. (2020). Use of competition to support transition: The toolkit. Official toolkit