Scientific activity

Dissertation – doctor, “Experimental substantiation of the methodology for developing local and regional muscle strength in 800 meter runners”, author’s abstract, VIF, Sofia – 1988.

Books, monographs, study aids, study guides

1. Karabiberov, Yu., G. Lazarov. Strength training in middle distance running. Study aid for specialists. NSA. 1991;

2. Karabiberov, Yu. and team. Textbook of athletics, edited by Prof. K. Zhalov, NSA.S. 1991;

3. Karabiberov, Yu. Learning to surf. Teaching aid with 5 lessons in Bulgarian and English, 1992 (The aid is not of scientific significance and was issued for the purpose of training visitors to the “Windsurfing School” built by the author at VS Elenite”;

4. Karabiberov, Yu., P. Bonov Athletic training in basketball, NSA.S. 1993;

5. Karabiberov, Yu. Fitness. Physical Perfection and Harmony Monograph, 1998;

6. Karabiberov, Yu. and team. A textbook on athletics edited by Prof. St. Stoykov. Pages 213-238. NSA PRESS. S. 2014;

7. Karabiberov, Yu. Sports – physiological overview of weight training, teaching aid, publishing house College of Sports “Bio Fit” S. 2012;

8. Karabiberov, Yu. Fitness training in volleyball. Monograph, “Bio Fit” College of Sports publishing house S. 2016;

9. Fitness – Monograph, “Bio Fit” College of Sports publishing house S. 2016;

10. Technique of aerobic cyclic exercises – “Bio Fit” College of Sports publishing house S. 2017;

11. Modern aspects of fitness training in sports, Monograph, “Bio Fit” College of Sports publishing house S.2020.

Scientific publications

Publications in refereed world-renowned databases of scientific information:

1. Model for Conditional Training of Elite Female Volleyball Players, Jornal of Applied Sport Sciences, 2020;

2. Development of the motor skills of adolescent volleyball players through using TRX training equipment, vol.34, №1, Series on Biomechanics, 2020;

3. Experimental Methods for Development of Elite Volleyball Players’ Explosive Power, Series on Biomechanics, vol.34, №2, 2020

Publications in Bulgarian scientific journals:

1. Karabiberov, Yu. Changes of some parameters in effort allocation along the distances of 800m. depending on the qualification of the athlete. VFK 3/1983
2. Karabiberov, Yu. – The variability of biomechanical parameters – a factor for increasing scores in average runs. Coach’s Thought 6/1983.S.
3. Karabiberov, Yu. – Comparative analysis of the opportunities of women and men in middle and long distance running. Coaching Thought 10/1983
4. Karabiberov, Yu. Factors for digestibility and variability of components stride length and frequency when running according to the speed-force ratio athlete’s potential. VFK 4/ 1984
5. Karabiberov, Yu. The 600m discipline – basis for specialization in middle runs. Coaching Thought 9/1984
6. Karabiberov, Yu. Speed and power capabilities and running 600 meters. Coach’s thought 2/1985
7. Karabiberov, Yu. Test for assessment of strength endurance and for prediction of the sports score. VFC. 2/ 1987
8. Karabiberov, Yu. Correlation structure of the speed-power training of middle distance runners. VFK. 5/ 1987
9. Karabiberov, Yu. Local muscle strength and power endurance in runners medium distances. A coaching thought. 2/1987
10. Karabiberov, Yu. Modeled ergometry of special running qualities at 800 meter runners. Coaching Thought .11/ 1987
11. Karabiberov, Yu. Reflection effect of modeled training loads on regional and local muscle strength, power endurance and some specific indicators of sports fitness in 800 m runners. Coaching a thought. 7/1988
12. Karabiberov, Yu. Normative basis for the assessment of local and regional power and the power endurance of 800m runners. VFK 6/1988
13. Karabiberov, Yu. Jumping exercises – a tool for developing speed- power abilities of middle distance runners. VFK 6/ 1989
14. Karabiberov, Yu. Problems of strength training in middle distance running distances. VFK 2 /1990
15. Karabiberov, Yu. Planning, periodization and allocation of funds for strength training in the annual cycle for highly qualified runners medium distances. VFK 5/1990
16. Karabiberov, Yu. Experimental justification of a new approach to learning in the athletics classes at NSA. Scientific works of VIF, 1990, item 30, p.61
17. Karabiberov, Yu. Sport for all – a universal coach for mass sports. VFC 12/1990
18. Karabiberov, Yu. Use of pulsometry in the performance of the specialized strength endurance test to evaluate the functional condition of the competitors in the 800m run. VFK 9/1992
19. Karabiberov, Yu. Programs for mass sports – content, principles, discussion points. VFK 7/1992
20. Karabiberov, Yu. Universal exercise machine “Sport 2”. VFK 11/ 1992
21. Karabiberov, Yu. Research on some parameters in the discipline of 800 meters smooth briding TEMP.8 /1982
22. Karabiberov, Yu. Modeling the training of 13-14 year old boys prospects for development in the middle runs. Scientific works volume XXV book I. 1984
23. Karabiberov, Yu. The level of physical fitness and the sports result of men’s 800m runners. Scientific works of VIF. Volume XXVI Book III. 1985
24. Karabiberov, Yu. Analysis of physical training in runners with different qualification. Scientific works of VIF book 3. 1986
25. Karabiberov, Yu. – Functional asymmetry in the development of local and the regional strength qualities of the competitors in the 800-meter run. Scientific works of VIF. T. XXVIII.kn. IV. 1988
26. Karabiberov, Yu. Reflective effect of speed-strength exercises on the aerobic capacity of athletes in the 800-meter run. Scientific works of VIF. Volume XXIX. book IX. 1989
27. Karabiberov, Yu. A specialized test for the assessment of strength endurance at middle distance runners. Scientific works of VIF. volume XXX, book? 1990
28. Karabiberov, Yu. Universal home trainer “Bulfit 1”. Sports and Science 7/1993
29. Karabiberov, Yu. Fitness – physical perfection and harmony. Sports and Science 4/ 1994
30. Karabiberov, Yu. The professional trainers for bodybuilding and fitness – who should let’s choose. Sport and Science 3/ 1995
31. Karabiberov, Yu. Fitness centers in Bulgaria – status and prospects. Sport and Science 12/ 1995
32. Karabiberov, Yu. New MLO method for measuring the amount of subcutaneous fat and determining the “ideal body weight”. Sport and Science 5/1996 p.71
33. Karabiberov, Yu. The physical preparation of Maria Grozdeva for the Olympic Games games in atlanta. Sports and Science. 2/ 1997
34. Karabiberov, Yu. Optimization of training loads in programs fitness through serial alternation of small and large antagonistic muscles groups. Sports and science. 5-6/ 1997, p. 66
35. Karabiberov, Yu. Method of interval speed efforts and its application in bodybuilding. Sports and science. 4/1997, p. 35
36. Karabiberov, Yu. Study of the dependence between the magnitude of the resistance and the duration of the effort when loaded with 70% of the maximum force. Sp. Athletics and Science.1-7/ 2007
37. Karabiberov, Yu. Studying the influence of aerobic fitness activities focus on the functional capabilities of the cardiovascular system in students. Athletics and Science. No. 1-9/ 2009
38. Karabiberov, Yu.) Study of the dynamics of changes in the maximum oxygen consumption (VO2 max) of students engaged in fitness. Journal “Athletics and Science” no. 1-10/ 2010
39. Karabiberov, Yu. Medicine and football, magazine, no. 9/2014 year….subject………?
40. Karabiberov, Yu., “Method for intensification of muscle efforts by working with one limb in eccentric mode”, Journal of Athletics, issue 1(15), 2015
41. Karabiberov, Yu., Naumov, V., Gutev, G., “Experimental fitness methodology for developing the basic physical qualities of 16-17-year-old girls”, magazine Athletics, issue 1(15), 2015
42. Karabiberov, Yu. Conditioning training in sports games according to the “Fit Motion – professional” training system. Sport and Science, issue 2/2016
43. Karabiberov Yu. Fitness and the slow-dynamic method 4×10+. Sport and Science, issue 3/2016
44. Karabiberov Yu., Naumov V. Experimentation of fitness methodology for developing anaerobic endurance of 16-17-year-old girls, Sport and Science, issue 4/2016
45. Karabiberov Yu., The fitness training of the volleyball player Strashimira Filipova, before leaving for Baku in 2015, Sport and Science, issue 4/2016
46. Karabiberov Yu., Sequential activation of phasic and tonic motor units as a method for complex development of motor qualities, Sport and Science, issue 1/2017
47. Karabiberov Yu., Contrasting force-speed method and training, Sport and Science, issue 1/2017
48. Panayotov V., Petkov K., Yankova ., Karabiberov Yu., Presentation of computer software for body weight regulation, Sport and Science, issue 1/2017
49. Karabiberov Yu., Sequential activation of phasic and tonic motor units as a method for complex development of motor qualities, Sport and Science, issue 1/2017
50. Karabiberov Yu., Preventive-stabilizing exercises in conditioning in sports, Sport and Science, issue 6/2017
51. Karabiberov Yu., Exercises for equilibrium resistance and balance and preventive-dynamizing exercises, Sport and Science, issue 1/2018
52. Aspects of conditioning training for the 2016/17 season of the snowboarder Radoslav Yankov, Sport and Science, issue 2/2018
53. Comparison of muscle activity during squat, lunge and Bulgarian squat exercises, Sport and Science, issue 3/2018 – second author (co-authored with S. Lazov and V. Panayotov)

Publications in Atletika magazine

1. Karabiberov, Yu. L-Carnitine. Sp. Athletics, 25-1/2003
2. Karabiberov, Yu. General physical training. Magazine “Athletics” No. 78/2011
3. Karabiberov, Yu. “JK Nutrition Ecdysterone Tribol”. Magazine “Athletics” no. 103-1 /2016
4. Karabiberov, Yu. Power-speed components in cardio-aerobic training” Journal of Athletics, No. 104/2016
5. Karabiberov, Yu. Cardioaerobic exercises walking and running Sp. “Athletics”, no. 105-3/2016
6. Karabiberov, Yu. Water-salt balance during training loads. Journal “Athletics”, no. 106-4/2016.

Sports apparatus and equipment recognized as inventions, holding certificates of patents from the “Institute of Inventions and Rationalizations”:

1. Patent for invention No. 50825 dated 27.05.1992.
2. Patent for invention No. 60195 dated November 8, 1994.
3. Utility model patent No. 239 dated 01.07. 1999

Author’s training program recognized as an original work:

4. Author’s program for physical and conditioning training, owned by “Certificate of original work of authorship created in result of creative activity” :”Fit Motion training system” – №21/02.06.2014 – Patent Office, city of Plovdiv.

Authorized by the Accredited American School of Fitness Instructors and personal trainers C.O.R.F.I.T. certifying membership and rights to representing the school by Julian Karabiberov, on the territory of Europe – ATTESTATION – October 20, 2009. Licensed teacher and lecturer at C.O.R.F.I.T. (USA).

Participation in scientific topics, projects and programs

Participation in 3 scientific topics under BSFS
Third prize from a competition for scientific works in 1990, held by the CS of BSFS.
A project at the SDC Department of the NSA “Vasil Levski” together with C.O.R.F.I.T. (USA), to develop a curriculum for educational courses for the preparation of personal fitness trainers according to the system of the American School C.O.R.F.I.T., 2008.
Project of the “Ministry of Youth and Sports” and the Metropolitan Municipality – Organization and implementation of the “Vrabnitsa” road race – Metropolitan Municipality, 2006 – 2008.
Author’s project for the development of an educational and training center of a Sports College – 2008-2009, accepted by the “Ministry of Education and Science” – the center of 2750 sq.m. was confirmed with an issued permit for use for educational-theoretical and sports-training purposes in 2010.
Project of the “Ministry of Youth and Sports” and Sofia Municipality – Organization and holding of an international athletics tournament for children, teenagers and girls “Tsvetanka Hristova” – 2009 – 2016 according to a project of Sofia Municipality.
Developed training program on fitness training – theory for the profession “Coach”, College of Sports “Bio Fit” – 2010.
Developed training program on fitness training – training practice for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Developed training program for fitness and conditioning training – training practice for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Developed curriculum on safety and recovery methods – training practice for the profession “Coach” and for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Developed training programs for fitness and conditioning training – training practice for the “Coach” profession, College of Sports “Bio Fit” – 2010.
Developed curriculum for Fitness management and control – theory for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Developed curriculum for Fitness training-fitness competitions – training practice for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Developed curriculum for conducting sports training practice (production practice) for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Participation in the development of an examination program for conducting state examinations in theory and practice for the acquisition of the IV degree of professional qualification for the profession “Coach”, College of Sports “Bio Fit” – 2010.
Participation in the development of an examination program for conducting state examinations in theory and practice for the acquisition of the IV degree of professional qualification for the profession “Fitness Instructor”, College of Sports “Bio Fit” – 2010.
Project for the development of an educational program in fitness and conditioning for the “North American Fitness Academy – N.A.F.A. (Canada), 2011.
Project at the Ministry of Education and Culture – primary education – “Sports for children in their free time” – 2011-2014.
“Development of a System for evaluating the results of students in sports training in sports schools – assistant fitness instructor” – Ministry of Physical Education and Sports – 2012
Developed curriculum for the professions “Assistant fitness instructor”, “Assistant coach” and “Organizer of sports events and championships” for 11th grade students in sports schools – “Ministry of Education and Science” – 2013.
Developed curriculum for the professions “Assistant Fitness Instructor”, “Assistant Coach” and “Organizer of Sports Events and Championships” for 12th grade students in sports schools – “Ministry of Education and Science” – 2014.
“Development of State Examinations standards for sports schools in the professions of professional direction 813 “Sport”: “Assistant coach”, “Assistant fitness instructor” and “Organizer of sports events and championships” – Ministry of Youth and Sports – 2014
Project for MMC – clubs – “The program for the development of sports clubs” – 2014.
Development of a training program for conditioning at the Department of Athletics at Vasil Levski National Academy of Sciences – 2015.
Participation in the Fitness program of the NSA “Vasil Levski” – 2016.
Participation in the educational project “Optimization of physical education and sports curricula in secondary schools” – 2016.
Scientific leader of a scientific project funded by the NSA, “Methodology for the development of aerobic capacity by means of nomobaric hypoxia in track and field runners of middle and long distances”, completed and reported, 2017

Participation in international and national seminars and conferences

Seminar – bodybuilding tournament ILBB Italy, lecturer – 1998
Seminar – bodybuilding tournament BBSJ Yugoslavia, lecturer – 2001
Seminar – Balkan Bodybuilding and Fitness Championship Istanbul-Turkey, lecturer – 2001
Athletics Coaches Seminar, Zlatibor, Serbia, lecturer – 2011.
Seminar of the 9th International Scientific Conference on “Medicine and Football” – 2013
C.O.R.F.I.T. (USA) Fitness and Conditioning Seminars – 11 seminars from 1998 to 2008.
International Scientific Congress, 5th, “Sport, Stress, Adaptation-Olympic Sport and Sport for All”, NSA, April, 23-25, 2010.
Fitness and conditioning seminars of the “North American Fitness Academy – N.A.F.A. (Canada) – “Techniques and methods for general and specific physical training of highly qualified athletes according to the author’s Fit Motion system” – 2 seminars, 2012-2013.
IIAF (International Association of Athletics Federations) Program Seminar – “Children’s Athletics” – 2015
IIAF (International Association of Athletics Federations) Program Seminar – “Children’s Athletics” – 2016
Gutev G., Karabiberov J., Dimova I., Guteva H., “Modling 110 m. hurdles stride based on sport result factors (men)”, International Congress of Physical Education and Sport Komotini 2016
Lazarov I., Karapetrova R., Joshan F., Karabiberov J., Yaneva A., “Development of the strength abilities of badminton players by athletic focus”, International Congress of Physical Education and Sport Komotini 2016.
International Conferences on Athletics at the “Vasil Levski” National Sports Academy – 11 nos. (1982, 1984, 1985, 1986, 1988, 1989, 1990, 2007, 2009, 2010, 2016).
Participation with a report at the international conference “Sport, stress, adaptation” – (authors: Bonova I., Karabiberov Yu., Mihailov V., Petrova B., Maksimov G., Kisiv K.) on the topic “Comparative analysis of changes in cardio -pulmonary test after prolonged interval normobaric hypoxic aerobic training in track and field runners at middle and long distances”, NSA 2018
Lecturer at a national seminar on athletics at the BFLA, Gorna Banya, 2018

Scientific guides

Theses in Master’s degree studies
1. Stoilov, Stoilov, Device for the development of the back muscles: master’s degree / Stoil Stoilov; Research supervisor Julian Karabiberov. – Sofia, 1997.
2. Naumov, Venislav, Experimental fitness methodology for the development of the basic physical qualities of 16-17 year old girls – master / Venislav Naumov; Research supervisor Julian Karabiberov. – Sofia, 2014.
3. Todorov, Hristo, Aerobic and anaerobic-aerobic fitness methods for optimizing the body composition of women – master / Hristo Todorov; Research supervisor Julian Karabiberov. – Sofia, 2014.
4. Trifonova Kremena, The influence of volleyball activities on the coordination abilities of students from V to VIII grades – bachelor/ Kremena Trifonova; Research supervisor Julian Karabiberov. – Sofia, 2016.
5. Bakhchevanova Yordanka, MS Yordanka Bakhchevanova’s preparation for the World Fitness Championship in 2013 – master’s degree/ Yordanka Bakhchevanova; Scientist Yu. Karabiberov. – Sofia, 2016.
6. Kolev T., Development of the motor qualities of adolescent volleyball players by using TRX training devices, Scientific district Yu. Karabiberov – Sofia, 2018.

PhD students

Vatkov, Nikolay Georgiev, Development of strength endurance in students in the conditions of the educational process of physical education and sports in higher schools, defended in 2010.
Naumov, Ventsislav, Methodology for developing speed-power qualities in volleyball players, defended in 2019.
Rositsa Nikolova, Methodology for fitness training of men aged 40-60, defended in 2021.

Educational Course Guides

Leader and lecturer of training courses for personal fitness trainers according to the system of the American School C.O.R.F.I.T. – to CSDC of NSA “Vasil Levski” together with C.O.R.F.I.T. (USA) – 5course, 2005, 2006, 2007, 2008 and 2009
Leader and lecturer of educational courses on fitness and conditioning topics of the American “Continental Organization of Registered Fitness Instructors and Trainers” C.O.R.F.I.T. (USA) – a total of 12 courses from 1998 to 2009.
Leader and lecturer of training courses for personal fitness trainers according to the C.O.R.F.I.T. system. (USA) – to the College of Sports “Bio Fit” – 6 courses, 2010 – 2016.
Head and lecturer of an educational course for the training of personal fitness and conditioning trainers according to the functional training system “Fit Motion” – at the College of Sports “Bio Fit” – 1 course, 2014.

Deputy head and lecturer of subjects on fitness training of the athlete at the “North American Fitness Academy – N.A.F.A. (Canada) – “Techniques and methods for general and specific physical training of highly qualified athletes according to the author’s Fit Motion system” – 2 courses (45 hours of lectures and practical methodical studies) – 2012-2013

Number of citations in scientific publications: 31