Ο Δημήτρης Τζεφαλής (γεν. το 1974), είναι Καθηγητής Φυσικής Αγωγής MSc. απόφοιτος του Αριστοτελείου Πανεπιστήμιου Θεσσαλονίκης με μεταπτυχιακές του σπουδές στην «Ανθρώπινη απόδοση και υγεία». Κατοικεί και εργάζεται στη Δράμα.
Είναι ο εμπνευστής και προπονητής της ομάδας δρόμων αντοχής O.S.B._Endurance Team (One Step Beyond) που σκοπό έχει τη διάδοση των δρόμων μεγάλων αποστάσεων και της καλύτερης υγείας του πληθυσμού και των δρομέων στη χώρα μας . Είναι παράλληλα προπονητής του Συλλόγου Κλασικού Αθλητισμού Δράμας και εν ενεργεία δρομέας και λάτρης των μεσαίων και μεγάλων αποστάσεων ασφάλτου και ορεινού τρεξίματος.
Είναι ο συγγραφέας του προπονητικού βιβλίου δρόμων μεγάλων αποστάσεων «Φέρνοντας κοντά τις μεγάλες αποστάσεις» και του εμψυχωτικού εγχειριδίου «Πού τρέχει ο λογισμός σου», τα οποία κυκλοφορούν από τις εκδόσεις Sportbook.
Elite athltes, Olympic level and National team level athletes:
Professional Football players
Ultramarathon runners, Triathletes,
Track and Field Athletes (Sprinters, Short and Middle distance runners, jumpers etc).
Wrestlers, MMA athletes
Tae Kwon Do athletes,
Skiers (Alpine and Long Lough),
Clinical Exercise Physiology testing on Metabolic patients, CVD patients, COPD Patients etc (along with cardiologist and pulmonary physician being present).
1. Physiological and mood responses to downhill running. Annual meeting of the American College of Sports Medicine, Seattle, WA, June 2nd, 1993.
2. Comparison of RPE at ventilatory thresholds and at 60% of VO2max on six different exercise modes. Annual meeting of the American College of Sports Medicine, Indianapolis, IN, June 1st 1994.
3. Mood response to six modes of submaximal exercise. Annual meeting of the American College of Sports Medicine, Indianapolis, IN, June 3rd 1994.
4. Comparison of different dietary protocols preparatory to resting and exercise measurements. Annual Meeting of the Central States of the American College of Sports Medicine, Columbia, MO, October 28th , 1994.
5. Responses to six exercise modes at the same RPE (with T. R. Thomas). Annual meeting of the American College of Sports Medicine, Minneapolis, MN, June 1st 1995.
6. Comparison of different dietary protocols for stabilizing trial to trial resting and exercise measurements. Annual meeting of the American College of Sports Medicine, Minneapolis, MN, June 2nd, 1995.
7. Influence of fitness status on VLDL subfractions. Annual meeting of the American College of Sports Medicine, Denver, CO, May 29th 1997.
8. Training status, post-prandial lipemia, and LDL subfraction distribution. Annual meeting of the American College of Sports Medicine, Denver, CO, May 29th 1997.
9. Training status, post-prandial lipemia, and LDL subfraction distribution, Annual meeting of the American College of Sports Medicine Denver, CO, June 1997.
10. Evaluation of Recreational Exercisers in Health Clubs. Annual Conference, G.R.A.F.T.S, Thessaloniki, April 21st 2001.
11. Improvement of performance and evaluation of soccer players using Ergometric testing. Medical- Sports Seminar – Eurodiagnosis, Thessaloniki, Μay 2001.
12. Preventive measures prior to participation in recreational exercise in gym and fitness clubs. Annual Conference, GRAFTS, Thessaloniki, Μay 2001.
13. Nutrition of soccer players and the negative impact health impact of doping 3rd Hellenic Soccer Tournament “Fair Play”, Thessaloniki, July 2001.
14. Ergometric testing of rowers. 2nd Seminar of the National Rowing Federation. Thessaloniki, Nov 22- 24th 2002.
15. Ergometric testing of skiers for performance improvement. 2nd Annual Seminar for Ski Injury Prevention. Εuropean Cultural Center. Delphi, Febr 14th-16th 2003.
16. User and Domain Requirements of the “Preventive” Medical Research Program. Development of an Intelligent Wearable Platform for Illness Prevention Related to Ambient and Athletic Conditions at Outdoor Environments”. Research Project, Supported by E.U. Brussels, Oct 20th 2003.
PRESENTATIONS IN SCIENTIFIC CONFERENCES
17. Physiological Predictors of 2000m Rowing Ergometer Performance. World Rowing Congress (held by World Rowing Federtion -FISA). Αthens, Nov 7th 2003.
18. Factors which predict rowing performance in 2000m test. Greek Rowing Federation Coaches Seminars. Igoumenitsa, Dec 7th 2003.
19. Spirometry and Ergospirometry for evaluation of elite athletes with cerebral palsy and handicapped athletes. 13ο SportsMedicine Balkan Congress, Drama, May 1st 2004.
20. Dietary supplements and ergogenic aids: When and how; Seminar of the Physical Education Organization of Imathia District. Veria, Febr 19th 2005.
21. Program for strength, aerobic and anaerobic adaptations in elite athltes. 2nd Coaches Seminars (organized by Hellenic Rowing Federation), Νew Anhialos, Nov. 19th and 20th, 2005.
22. Effect of high altitude exposure on sports performance and on the physiological characteristics of elite athletes. 3rd Annual Ski Injury Seminar. European Cultural Center, .Delphi, Dec 9th -11th 2005.
23. Ergometric testing and sports rehabilitation. Seminar – Hellenic Track and Field Federation (SEGAS) Seminars, Αlexandria, Apr. 5th 2006.
24. High altitude training. Annual Coaches Conference Held by the Hellenic Ski Federation Larissa, Dec 9th 2006.
25. Performance evaluation of soccer players – comparison with foreign players. 3rd International Soccer Coaches Congress. Rhodes, June 22-24th 2007.
26. Physiological and metabolic factors which affect long distance ski performance. 2nd Annual Ski Coaching Seminar. Νaousa Nov. 24th -25th 2007.
27. Dietary supplements. Myths and facts. Seminar Held by Greek Antidoping Agency. Thessaloniki March 21st 2008.
28. Evaluation of soccer performance. 9th World Sports Medicine Seminar, Hellenic College of Sportsmedicine. Αthens 27th – 30th Μarch 2008.
29. Analysis of VO2max determinants: Can we affect them by training? International Coaches Forum. Naousa, April 5-8, 2008.
30. Factors which affect the intensity of training in long mountain cycling and running events. Sphendami, 19th April 2008.
31. Submaximal endurance markers of elite soccer players during preseason testing. Annual World Congress of the European College of Sports Medicine (ECSS). Estoril, Portugal, July 9th -12th 2008.
32. Evaluation of physical characteristics of swimmers. Scientific seminar held by ARIS Swimming Team. Thessaloniki Sept 21st 2008.
33. Evaluation of physical characteristics of elite athletes. Annual Meeting of the European College of Sports Medicine (ECOSEP), Thessaloniki, Nov. 2008.
34. Evaluation of sports performance of elite athletes. Benefits for the team physician, the coach and the athlete. 13th Hellenic Seminars of Physical Educators of Northern Greece, Thessaloniki, April 3rd – 4th 2009.
35. Youth soccer performance testing and evaluation and comparison with international youth players. 1st Annual Sports Medicine Seminar Olympiacos F.C. Athens, Αpril 2009.
36. Speaker at postgraduate courses. Sports Medicine Clinic of Northern Greece, S.E.G.A.S 2009.
37. Fat metabolism and hypergravity. Topical Team Meeting. European Aerospace Association. Dublin, Ireland. Feb 27-28, 2010.
38. Current Approaches in Soccer Exercise Testing. 10th International and 8th Greek Cypriot SportsMedicine Congress. Veria, March 19-21, 2010.
39. Analysis of different methods for intensity control and training load evaluation during soccer training. Soccer coaches association. Veria. May 29th 2010.
40. Physical testing prior to returning to normal sports activity for elite athletes following ACL injury. European College of Sport and Exercise Physicians (ECOSEP), London 9-11 Sept, 2010.
41. Detraining effects. 6th International Conference of Aerospace Medicine. Greek Aerospace Medical Association, International Academy of Astraunautics (I.A.A) Thessaloniki, 22-26 Sept 2010.
42. Evaluation of physical characteristics of soccer players during the 3rd developmental stage. Annual Coaching Seminar, PAOK FC, Thessaloniki 18 March 2011.
43. Improving the effectiveness of training programs in long distance events. 14th International Congress of Physical Education and Sport. Thessaloniki, 1-3 April 2011.
44. Εvaluation of elite talented soccer players during the 3rd football development period. Comparison with European players. 9th Greek-Cypriot Sports Medicine Congress. Nicosia 18-20 Nov. 2011.
45. Evaluation of injured football players prior to re-entry in to normal training program. 9th Greek-Cypriot Sports Medicine Congress. Nicosia 18-20 Nov. 2011.
46. The role of physical conditioning in the postoperative result. Knee injury Seminar. M.I.S. Center, St. Loukas Hospital, Thessaloniki, 7 April. 2012.
47. Medical aspects of coaching. FIS Coaches’ seminar. Sofia, Bulgaria 20-21 April 2012.
48. Evaluation of training intensity and training load in football. 3rd International Football Conference, Nicosia 26-27 May, 2012.
49. Tips for performance improvement in medium and long distance events. Olympic Committee Building, Nicosia, 29 Sept. 2012.
50. Physiological characteristics of Superleague Football players compared to European football players. Conference of the Greek Society of Exercise Biochemistry and Physiology. Athens, Oct 12th 2012.
51. Exercise testing and evaluation in elite athletes. Educational courses of the Hellenic Society of Arthroscopy. Athens, Feb. 1st, 2013.
52. The role of exercise testing on injury prevention and recurrence. 5th Congress of the Hellenic Association of Arthorscopy. Larissa, April 3-6 2013.
53. Training methodology for young football players. 4th International Soccer Conference, Cyprus, Nicosia, 8-9 June 2013.
54. Evaluation of endurance in football. Analysis of field and laboratory methods. Scienceweb Webinar, June 13, 2013.
55. Evaluation of injured athletes prior to returning to high intensity sports activity. International Orthopaedic and Sports Medicine Seminar, Limassol, Cyprus, Oct 26th, 2013.
56. Proper dietary intake before and after intense training or games. FOOTBALL ABOUT. 2nd Athens International Football Conference. Peace and Friendship Stadium Athens, March, 2014.
57. Ski Physiology. Hellenic Ski Federation teaching seminars for certified ski coaches. Thessaloniki, 9- 10 May, 2014.
58. Selection of appropriate tests to evaluate performance parameters in elite football players. 1st SportsMedicine and Orthopaedic Congress in Football. Litochoro, Greece, 22-24th April 2016.
59. Selection of appropriate laboratory and field tests for evaluating fitness in elite professional football players. SportsMedicine Congress, Anorthosis FC, Larnaca, Cyprus, 25-26th March 2017.
60. Reduced physiological adaptations in regularly-benched professional football players. Isokinetic Sports Medicine Conference, Barcelona, Spain 1-4 June 2018.
61. Monitoring team, players, and progress. SAP Sports Summit 2018. Frankfurt, Germany, 8-9 Oct. 2018
62. Modern methods for evaluating injured football players prior to RTP. Sports Medicine Congress. Athens 1-2 March, 2019
63. Ergometric testing in cyclists. Data analysis and misleading approached. Union of Cycling Clubs of
Macedonia and Thrace. 6 Mar. 2021
64. Intensity analysis in football. Key concepts to consider. 1st International Football Performance Online Conference 28, 29 May 2021.
65. Motor development for sports and performance in youth. 5th Assembly of the International Motor Development Research Consortium. 23-25 Sept. 2021
66. Retraining after COVID – Key areas for rebuilding performance. World Congress of Sports Medicine. Athens 23-26 Sept. 2021.
67. Physiological demands of football. 7th ECOSEP Congress. “Sports Medicine and Science: Facts for the future”. Athens 19-20 Nov. 2021.
a) 1st PEDIATRIC UNIVERSITY CLINIC, Medical School of Athens, 2017
b) Orthopaedic Sports Medicine Center, Medical School of Ioannina, 2006-11
SAP SPORTS ONE ADMIN
SAP BUSINESS ANALYTICS ADMIN (Big Data Analysis and Monitoring)
STATSPORTS Apex Pro – Wearable Performance Monitoring System
PROZONE (Live Game Tracking)
VIS TRACK (Live Game Tracking)
SAP SPORTS ONE (Project Manager and Admin)
Team Data, Player Data Management,
Medical Data Management
Training and Game Fitness and Technical Data Management
Performance Test and Analysis Data Management
Competition data Analysis
Scouting data and player reports
SAP MATCH INSIGHTS Software
SAP BUSINESS OBJECTS Software for Team and Player Data Analysis and Trend Reporting
✓ 20+ years of experience with elite clubs and world-class athletes
✓ Very strong and extensive background in SPORT SCIENCE, SPORTS and MEDICAL PHYSIOLOGY, SPORTS NUTRITION, PERFORMANCE MONITORING and DATA ANALYSIS
✓ Working with football clubs participating in CHAMPIONS LEAGUE & EUROPA LEAGUE.
✓ Working, interacting & monitoring performance of World-Class football players and Olympic level athletes
✓ Developing Winning Academy Teams
PERFORMANCE MONITORING, ANALYSIS and DATA MANAGEMENT
✓ Support professional and academy (elite) football teams using multi-disciplinary approach (Sport Science, Sports Physiology, Sports Nutrition, Training Data Analysis, Game Data Analysis, Data Management, Trend reporting on Excel and other software, etc).
✓ Leading Sport Science and Performance Analysis areas in professional and academy football teams, and working in close cooperation with Medical Staff, Team Managers, Fitness Coaches, Scouters and Team Administrators.
✓ Daily monitoring of Team and Player training and game data using state of the art technology and software. Follow up player performance by taking into advantage data from Wearable Performance Monitoring Devices and State-of-the Art Team and Player Data Management Software
✓ Trend analysis and reporting using weekly, monthly and seasonal analysis of team and player data (based on player position) and comparative chart development
✓ Helping in strategic planning and critical decision-making based on data analysis in combination with knowledge and extensive experience at elite level.
✓ Group management, group work, teamwork results.
✓ Proven cooperation with other institutes (e.g. Medical School) for research project development and implementation (getting early advantage on key issues affecting performance)
✓ Experience and publication on emerging and very promising areas of sports performance (e.g. Predictive Genomics for Athletic Performance)
✓ Working as Sport Scientist with the most successful Federation in Greece (Rowing Federation 2003-2017) with proven long term successful results (No Olympic medals before 2003 – Olympic medals in 2004, 2008, 2012 and 4th place in 2016, and medals in all world championships since 2004)
✓ Daily communication and weekly meetings with Medical Staff, Trainer, Manager for effective transfer of knowledge and effective implementation of monitoring data.
✓ Transfer of knowledge/findings (team/player strengths, weaknesses etc) to Team Manager, Fitness Coaches and Team/Club/Federation Executives. Focus of improving team/player weaknesses. Clear, adaptive and meaningful transfer of findings/knowledge at all levels.
✓ Respect of confidentiality. Ethos. Respect and support equality at all levels. Respect anti-doping rules.
✓ Lived and studied abroad (USA).
✓ Excellent adaptability. Worked for 18+ years in Elite Teams from different countries and cultures (Greece, Russia, Ukraiine, Dubai, Israel, Cyprus) and with elite players from all over the world, participating in Champions League, Europa League
✓ Worked with injured and handicapped athletes (eg. Elite Swimmers and weight lifters)
✓ Excellent IT skills.
✓ Extensive Use of Excel and Google Suite for Development of Graphs, Trends and for Statistical analysis
✓ Use Mathematical and Statistical Formulas for Data and KPI Analysis