Scientific Research

Sports Science + Sports Medicine

My scientific interests are in the area of sport science and sports medicine, and include various sub-fields, such as health-related physical fitness, physical activity, nutrition, gymnastics, and physical education. This page includes all scientific papers which I have produced in collaboration with other researchers from around the world.

Stefan Kolimechkov PhD

PEER-REVIEWED JOURNAL ARTICLES

26.

Kolimechkov, S., Makaveev, R., Zaykova, D., & Petrov, L. (2023). Tabata protocol-based high-intensity interval training in freestyle wrestlers. Pedagogy of Physical Culture and Sports, 27(6), 467–473. DOI: https://doi.org/10.15561/26649837.2023.0604

25.

Monacis, D., Colella, D., Kolimechkov, S. (2023). Regional observatory of physical fitness in children and adolescents in southern Italy: a thirty-year comparison between 1990-2020. Kinesiologia Slovenica, 29(1), 122-137. DOI: https://doi.org/10.52165/kinsi.29.1.122-137

24.

Kolimechkov, S., Seijo, M., Swaine, I., Thirkell, J., Colado, J. C., & Naclerio, F. (2023). Physiological effects of microcurrent and its application for maximising acute responses and chronic adaptations to exercise. European journal of applied physiology, 123(3), 451–465. DOI: https://doi.org/10.1007/s00421-022-05097-w

23.

Bonova, I., Kolimechkov, S., Mavrudiev, P., Mitsov, D., Dasheva, D. (2022). The effect of trainability on the physical fitness of young athletes. Journal of Applied Sports Sciences, 1(2022), 57-72. DOI: http://dx.doi.org/10.37393/JASS.2022.01.5

22.

Kolimechkov, S., Douglas, D., Izov, N., Alexandrova, A., & Petrov, L. (2022). The effect of turmeric and its compound curcumin on muscle recovery in athletes: mini review. Kinesiologia Slovenica, 28(1), 83-95. DOI: https://doi.org/10.52165/kinsi.28.1.83-95

21.

Petrov, L., Alexandrova, A., Makaveev, R., Penov, R., Bonova, I. & Kolimechkov, S. (2022). Copper, selenium, zinc, and iron deficiencies in male athletes. Journal of Physical Education and Sport, 22(2), 423 – 429. DOI: https://doi.org/10.7752/jpes.2022.02053

20.

Kolimechkov, S., Petrov, L., Vankova, D., & Douglas, D. (2022). Nutritional Assessment of Female Yoga Practitioners with Different Levels of Experience. Sport Mont, 20(1), 45-49. DOI: https://doi.org/10.26773/smj.220208

19.

Petrov, L., Alexandrova, A., Kachaunov, M., Penov, R., Sheytanova, T., & Kolimechkov, S. (2021). Effect of glutathione supplementation on swimmers’ performance. Pedagogy of Physical Culture and Sports, 25(4), 215-224. DOI: https://doi.org/10.15561/26649837.2021.0403

18.

Kolimechkov, S., Yanev, I., Kiuchukov, I., Petrov, L. (2021). Kinematic analysis of double back straight somersault and double back straight somersault with full twist on rings. Science of Gymnastics Journal, 13(2), 191 – 202. DOI: https://doi.org/10.52165/sgj.13.2.191-202

17.

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

16.

Izov, N., Alexandrova, A., Petrov, L., Kachaunov, M., Sheytanova, T., & Kolimechkov, S. (2020). Dynamics of training distress, performance, and excretion of cortisol and cortisone in urine during six weeks of training in elite swimmers. Human. Sport. Medicine, 20(S1), 84-91. DOI: https://doi.org/10.14529/hsm20s111

15.

Kolimechkov, S., Castro-Piñero, J., Petrov, L., & Alexandrova, A. (2020). The effect of elbow position on the handgrip strength test in children: validity and reliability of TKK 5101 and DynX dynamometers. Pedagogy of Physical Culture and Sports, 24(5), 240-247. DOI: https://doi.org/10.15561/26649837.2020.0504

14.

Kolimechkov, S. & Petrov, L. (2020). The Body Mass Index: A Systematic Review. Journal of Exercise Physiology and Health, 3(2), 21-27.

13.

Miteva, S., Yanev, I., Kolimechkov, S., Petrov, L., Mladenov, L., Georgieva, V., & Somlev, P. (2020). Nutrition and body composition of elite rhythmic gymnasts from Bulgaria. International Journal of Sports Science & Coaching, 15(1), 108–116. DOI: https://doi.org/10.1177/1747954119892803

12.

Penov, R., Petrov, L., Kolimechkov, S. (2020). Changes in heart rate and blood lactate concentration during karate kata competition. Pedagogy of physical culture and sports (Pedagogics, psychology, medical-biological problems of physical training and sports), 24(3):137-142. DOI: https://doi.org/10.15561/26649837.2020.0306

11.

Neykov, S., Bachev, V., Petrov, L., Alexandrova, A., Andonov, S., & Kolimechkov, S. (2019). Application of hypoxicators in the rowers’ training. Pedagogics, Psychology, Medical-Biological Problems of Physical Training and Sports, 23(5), 239-245. DOI: https://doi.org/10.15561/18189172.2019.0505

10.

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, 1, 39-52. DOI: https://doi.org/10.37393/jass.2019.01.4

9.

Kiuchukov, I., Yanev, I., Petrov, L., Kolimechkov, S., Alexandrova, A., Zaykova, D., & Stoimenov, E. (2019). Impact of gymnastics training on the health-related physical fitness of young female and male artistic gymnasts. Science of Gymnastics Journal, 11(2), 175 – 187.

8.

Alexandrova, A., Petrov, L., Makaveev, R., Tsvetanova, E., Georgieva, A. & Kolimechkov, S. (2019). Erythrocyte oxidative status after maximal aerobic test in wrestlers. Human. Sport. Medicine, 19(1), 15-21. DOI: https://doi.org/10.14529/hsm190102

7.

Kolimechkov, S., Petrov, L., & Alexandrova, A. (2019). Alpha-fit test battery norms for children and adolescents from 5 to 18 years of age obtained by a linear interpolation of existing European physical fitness references. European Journal of Physical Education and Sport Science, 5(4), 1-14.

6.

Petrov, L., Penov, R., Kolimechkov, S. & Alexandrova, A. (2018). Physiological and biochemical changes after a programmed kumite in male Shotokan karate practitioners. Archives of Budo Science of Martial Arts and Extreme Sports, 14, 171 – 178.

5.

Alexandrova, A., Penov, R., Petrov, L., Cholakov, K., & Kolimechkov, S. (2018). Competitive bout model as a tool for estimation of female karateka specific endurance. European Journal of Physical Education and Sport Science, 4(9), 30-41.

4.

Kolimechkov, S., Petrov, L., Alexandrova, A., & Cholakov, K. (2018). BeepShuttle Junior: Software for the administration of the 20m shuttle run test in children and adolescents. Journal of Advanced Sport Technology, 1(3), 35-40.

3.

Kolimechkov, S. (2017). Physical fitness assessment in children and adolescents: a systematic review. European Journal of Physical Education and Sport Science, 3(4), 65-78.

2.

Kolimechkov, S.T., Petrov, L.A., Alexandrova, A.V. & Atanasov, P.S. (2016). Nutrition and physical development assessment of pre-school and primary school children practising artistic gymnastics. African Journal for Physical Activity and Health Sciences, 22(2:2), 565-577.

1.

Kolimechkov, S., Petrov, L., Ilinova, B., Alexandrova, A., Andreeva, L. & Atanasov, P. (2013). Assessment of the physical development of pre-school and primary school children practising artistic gymnastics. Journal of Sport Science (‘Спорт и Наука’) 2013, 4, 106-115.

ARTICLES IN PROCEEDING BOOKS

4.

Bonova, I., Mileva, E. & Kolimechkov, S. (2022). Morphological characteristics and health status of 8-19-year old girls. In T. Iancheva (Ed.), International Scientific Congress ‘Applied Sports Sciences’ 2022, Vol.2 (pp. 265 – 271). Sofia, Bulgaria: Scientific Publishing House NSA Press.

3.

Bonova, I., Kolimechkov, S., Hristov, O., Petrova, B., Kostova, N. & Vekova, A. (2019). Physical fitness levels of Bulgarian primary school children in relationship to overweight and obesity. In T. Iancheva (Ed.), International Scientific Congress ‘Applied Sports Sciences’ 2019 (pp. 335-339). Sofia, Bulgaria: NSA Press.

2.

Bachev, V., Petrov, L., Alexandrova, A., Neykov, S., Kolimechkov, S. and Mihaylov, V. (2019). Some metrological aspects of measurements of quantitative characteristics during a hypoxic training of elite rowers, XXIX International Scientific Symposium ‘Metrology and Metrology Assurance’ (MMA) 2019 (pp. 150-153). Sozopol, Bulgaria. DOI: https://doi.org/10.1109/MMA.2019.8935990

1.

Kolimechkov, S., Petrov L. & Alexandrova A. (2017). Physical activity assessment using a modified PAQ-C questionnaire. In T. Iancheva (Ed.), International Scientific Congress ‘Applied Sports Sciences’ 2017 (pp. 346-350). Sofia, Bulgaria: NSA Press.

PRESENTATIONS AT CONFERENCES / ABSTRACTS IN PROCEEDINGS

16.

Kolimechkov, S. & Petrov, L. (2021). Relative handgrip strength is a better indicator than absolute handgrip strength for the assessment of health-related musculoskeletal fitness in children. 26th Annual Congress of the European College of Sport Science, 8-10 September 2021.

15.

Kolimechkov, S., Petrov, L., Gateva, M. & Alexandrova, A. (2021). Precompetitive stress in rhythmic gymnasts assessed by using salivary alpha-amylase, protein and potassium. Medicine & Science in Sports & Exercise: August 2021 – Volume 53 – Issue 8S – p 329-330 DOI: https://doi.org/10.1249/01.mss.0000763032.63866.c8

14.

Kolimechkov, S., Petrov, L., Vankova, D. & Douglas, D. (2021). Nutritional assessment of female yoga practitioners with different levels of experience. Abstracts from the 18th Annual Scientific Conference of Montenegrin Sports Academy and 16th FIEP European Congress ‘Sport, Physical Education, Physical Activity and Health: Contemporary perspectives’: Dubrovnik, Croatia. 8-11 April 2021. Montenegrin Journal of Sports Science and Medicine, 10(S1), 5-19. DOI: https://doi.org/10.26773/mjssm.210401

13.

Kolimechkov, S., Petrov, L., Alexandrova, A. & Jemni, M. (2020). Artistic gymnastics improves health-related biomarkers at primary school age. 25th Annual Congress of the European College of Sport Science, 28-30 October 2020.

12.

Bonova, I., Kolimechkov, S., Hristov, O., Petrova, B., Kostova, N. & Vekova, A. (2019). Physical fitness levels of Bulgarian primary school children in relationship to overweight and obesity. 2nd International Scientific Congress of Applied Sports Sciences & 1st Balkan Scientific Congress ‘Physical Education, Sports, Health’, Sofia, Bulgaria, 15-16 November 2019.

11.

Kolimechkov, S. & Petrov, L. (2019). Turmeric: Benefits for Athletes. Symposium ‘Bioactive substances with application in sport’ from the 2nd International Scientific Congress of Applied Sports Sciences & 1st Balkan Scientific Congress ‘Physical Education, Sports, Health’, Sofia, Bulgaria, 15-16 November 2019.

10.

Bachev, V., Petrov, L., Alexandrova, A., Naykov, S., Kolimechkov, S. & Mihaylov, V. (2019). Some metrological aspects of measurements of quantitative characteristics during a hypoxic training of elite rowers. XXIX International Scientific Symposium ‘Metrology and Metrology Assurance’, Sozopol, Bulgaria, 6-10 September 2019.

9.

Kolimechkov, S., Miteva, S., Yanev, I. & Petrov, L. (2019). Body composition and nutrient intake of Olympic and elite rhythmic gymnasts. 24th Annual Congress of the European College of Sport Science, Prague, Czech Republic, 3-6 July 2019.

8.

Kolimechkov, S., Kiuchukov, I., Petrov, L., Alexandrova, A., Yanev, I., Zaykova, D. & Stoimenov, E. (2018). Physical fitness assessment of young artistic gymnasts. BASES Conference 2018 – Programme and Abstracts, Harrogate, UK, 27-28 November. Journal of Sports Sciences, 36:sup1, DOI: https://doi.org/10.1080/02640414.2018.1521633

7.

Kolimechkov, S., Petrov, L. & Alexandrova, A. (2018). Combined sets of European physical fitness percentile scores, with appropriate interpolations, for children and adolescents for the Alpha-fit test battery. 13th FIEP European Congress and 29th FIEP World Congress, Istanbul, Turkey, 26-29 September 2018. Marmara University Press.

6.

Petrov, L., Alexandrova, A., Kolimechkov, S., Kiuchukov, I., Yanev, I., Zaykova, D. & Stoimenov, E. (2018). Physical development of young artistic gymnasts. XXVIII International Conference: Bulgarian Presidency of the Council of the European Union – Innovation and Prosperity, Stara Zagora, Bulgaria, 1 June 2018.

5.

Kiuchukov, I., Kolimechkov, S., Yanev, I., Alexandrova, A., Zaykova, D., Stoimenov, E. & Petrov, L. (2018). Physical fitness and physical preparation of young artistic gymnasts. Annual Conference of the Department of Gymnastics at the National Sports Academy, Sofia, Bulgaria, 23 May 2018.

4.

Kolimechkov, S., Petrov, L. & Alexandrova, A. (2017). Physical activity assessment using a modified PAQ-C questionnaire. 1st International Scientific Congress of Applied Sports Sciences, Sofia, Bulgaria, 1-2 December 2017.

3.

Kolimechkov, S., Petrov, L. & Alexandrova, A. (2017). Effect of elbow position on grip strength in children: validity and reliability of TKK 5101 and DynX dynamometers. BASES Conference 2017 – Programme and Abstracts, Nottingham, UK, 28-29 November. Journal of Sports Sciences, 35:sup1, DOI: https://doi.org/10.1080/02640414.2017.1378421

2.

Kolimechkov, S., Petrov, L., Alexandrova, A. & Cholakov, K. (2017). BeepShuttle: Software for assessing the cardiorespiratory fitness of children and adolescents. 12th FIEP European Congress, Luxembourg, 13-16 September 2017.

1.

Kolimechkov, S., Petrov, L., Alexandrova, A., Andreeva, L. & Atanasov, P. (2013). Assessment of the nutrition and physical development of pre-school and primary school children practising artistic gymnastics. VI-th National Nutrition Conference, Varna, Bulgaria, 17 May 2013.

About Personal Training

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