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Giannis Giakas
Associate Prof in Biomechanics

Conferences

65. Jamurtas A., Paschalis V., Nikolaidis MG., Giakas G., Koutedakis Y. “Position sense and reaction angle after eccentric exercise: the repeated bout effect”. Abstracts: 13th annual Congress of the European College of Sports Science, pp. 629, Estoril, Portugal, July 2008.

64. Paschalis V., Nikolaidis MG., Giakas G., Jamurtas AZ., Pappas A., Koutedakis Y. “The effects of eccentric exercise on position sense and joint reaction”. Abstracts: 12th annual Congress of the European College of Sports Science, pp. 215, Jyvaskyla, Finland, July 2007.

63. Jamurtas AZ., Nikolaidis MG., Paschalis V., Giakas G., Fatouros IG., Koutedakis Y., Kouretas D. “Decreased blood oxidative stress after repeated eccentric exercise”. Med Sci Sports Exerc, 39(5 Suppl):S38, ACSM, 2007

62. Giakas G., Paschalis V., Koutedakis Y., Baltzopoulos V., Jamurtas A., Theocharis V., Kotzamanidis C. “The effects of muscle damage following eccentric exercise on gait biomechanics”. : J Biomech, vol. 39, Suppl 1, pp. S175, 5th World Congress of Biomechanics, 2006.

61. Nikolaidis MG., Paschalis V., Fatouros IG., Giakas G., Koutedakis Y., Kouretas D., Jamurtas AZ. “Uniform and prolonged changes in blood redox status indices after muscle damaging exercise”.  2006.

60. Giakas G., Paschalis V., Koutedakis Y., Jamurtas A., Mougios V., Tsiokanos A., Baltzopoulos V. “Changes in walking and running after eccentric exercise”. Pre-Olympic Congress, vol. 1, pp. 25,2004.

59. Moraiti T, Stergiou N, Giakas G, Ristanis S and AD Georgoulis (2004). Stability of the ACL deficient knee in different walking speeds. 50th Annual Meeting of the Orthopaedic Research Society, March 7 - 10, 2004, San Francisco, California, USA

58. Moraiti T, Stergiou N, Giakas G, Ristanis S, Soucacos PN, AD Georgoulis (2004). Assessment of gait patterns in ACL deficient patients using the non linear dynamics theory. 71st Annual Meeting of the American Academy of Orthopaedic Surgeons, San Francisco, California, USA

57. Moraiti T, Stergiou N, Giakas G, Andrikoula S, Ristanis S and AD Georgoulis (2004). The effect of ACL deficiency on gait chaotic dynamics under different walking speeds. 11th European Society of Sports Traumatology, Knee Surgery and Arthroscopy Congress, Athens, Greece

56. Moraiti T, Stergiou N, Giakas G, Ristanis S, Soucacos PN and AD Georgoulis (2003). Assessment of the alterations in gait patterns caused by ACL deficiency using non-linear dynamics. VII IOC Olympic World Congress on Sport Sciences, Athens, Greece (p 90D).

55. Tsepis E, Giakas G, Vagenas G and AD Georgoulis (2003). Frequency content asymmetry of the isokineticextension and flexion curve in ACL deficient athletes. VII IOC Olympic World Congress on Sport Sciences, Athens, Greece (p 62D).

54. Lake MJ, Georgakis A, Giakas G, Stergioulas LK and BL Patritti (2003). Time-frequency analysis of lower limb loading transients associated with perception of impact severity. Presented at XVIII Congress of the International Society of Biomechanics, New Zealand

53. Tsaopoulos D, Giakas G, Tsiokanos T and AD Georgoulis (2003). Reliability of the isokinetic shoulder flexion/extension test. Presented at XVIII Congress of the International Society of Biomechanics, New Zealand

52. Giakas G, Moraiti T, Ristanis S, Tsepis E, Papageorgiou CD, Stergiou N and AD Georgoulis (2003). Changes in single step balance of ACL deficient patients before and after low demand exercise. International Society of Arthroscopy Knee Surgery and Orthopaedics Sports Medicine. Oakland, New Zealand.

51. Ristanis S, Giakas G, Moraiti T, Siarava E, Papageorgiou CD, Stergiou N, Chouliaras V, and AD Georgoulis (2003). The effect of ACL reconstruction on the internal-external rotation of the knee joint. International Society of Arthroscopy Knee Surgery and Orthopaedics Sports Medicine. Oakland, New Zealand.

50. Moraiti T, Giakas G, Stergiou N, Papageorgiou CD, Tsepis E, Ristanis S and AD Georgoulis (2003). 3-D Gait analysis of ACL deficient patients using the chaos theory. International Society of Arthroscopy Knee Surgery and Orthopaedics Sports Medicine. Oakland, New Zealand.

49. Tsepis E, Vagenas G, Giakas G, Papageorgiou CD and AD Georgoulis (2003). Short and long term ACL deficiency: the role of hamstrings. International Society of Arthroscopy Knee Surgery and Orthopaedics Sports Medicine. Oakland, New Zealand.

48. Papageorgiou CD, Ristanis S, Giakas G, Stergiou N and A Georgoulis (2003). Knee Internal-External Rotation after ACL Reconstruction. International Symposium on Ligaments and Tendons –III. New Orleans, Louisiana, USA.

47. Ristanis S, Giakas G, Papageorgiou CD, Moraiti T, Tsepis E, Siarava E, Stergiou N and AD Georgoulis (2003), Internal-External Rotation of the Knee Joint after ACL Reconstruction during Step Down and Turning. 70th Annual meeting of the American Academy of Orthopaedic Surgeons. New Orleans, Louisiana, USA.

46. Ristanis S, Giakas G, Papageorgiou CD, Moraiti T, Stergiou N, and AD Georgoulis (2003). Internal-external rotation of the knee joint after ACL reconstruction. VII IOC Olympic World Congress on Sport Sciences, Athens, Greece (p 34D).

45. Georgoulis, AD, Ristanis S, Giakas G, Moraiti T, Papageorgiou CD and N Stergiou (2003). Knee-Tibial Internal-External Rotation after ACL Reconstruction. 8th Annual Meeting of the Gait and Clinical Movement Analysis Society, Wilmington, Delaware, USA.

44. Georgoulis AD, Moraiti T, Giakas G, Stergiou N, and CD Papageorgiou (2003). Periodicity of ACL deficient patients during walking: An application of the Chaos Theory. ISL&T III. Pittsburgh, USA

43. Georgoulis AD, Giakas G, Moraiti T, Siarava E, Chouliaras V and CD Papageorgiou (2002). Effects of moderate exercise during cycling in balance in ACL deficient subjects. 6th International Conference Orthopaedics, Biomechanics, Sports Rehabilitation.

42. Georgakis A, Stergioulas LK and Giakas G (2002). A robust frequency measure based on the instantaneous frequency for EMG fatigue analysis and interpretation. 2nd European Medical & Biological Engineering Conference (EMBEC 2002), Vienna, Austria. 

41. Giakas G, Georgakis A and L Stergioulas. (2002). Fatigue using EMG signal: performance of three methods against noise. 7th annual Congress of the European College of Sport Sciences. Athens, Greece

40. Tsepis E, G Vagenas, A Georgoulis, Giakas G, and L Markou (2002). Knee function factors affecting strength asymmetries on ACL deficient athletes. 7th annual Congress of the European College of Sport Sciences. Athens, Greece

39. Georgakis A., Stergioulas L. K., and G Giakas (2002). Accurate measurement of impact accelerations using an automatic time-frequency filtering algorithm. 16th Biennial International Eurasip Conference, Biosignal 2002, Brno, Czech Republic.

38.  Georgakis A, Stergioulas LK, and G Giakas (2002). Analysis of EMG signals during Isometric Contraction of the quadriceps muscles using Instantaneous Frequency. 16th Biennial International Eurasip Conference, Biosignal 2002, Brno, Czech Republic.

37. Giakas G, V Pomeroy, H Bache, S Miller and R Tallis (2001). Exercise after stroke: an exploratory study of a new cycloergometer. 6th Scientific Meeting of the Stroke Association, p18-19 Oxford, UK. September 11-12.

36. Giakas G (2001). Error in kinematic analysis due to calibration. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #O396

35. Giakas G, H Shaaban and V Lees (2001). Forces of the distal radioulnar joint: effects of loading and rotation. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #P217

34. Giakas G and N Stergiou (2001). The effects of lateral loading on the ground reaction force measurements during walking on young and elderly females. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #P157

33. Mickelborough J, and G Giakas (2001). Frequency spectrum differences in centre of pressure and centre of mass displacement between normal elderly people and patients with vascular higher-level gait disorders. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #P187

32. Georgakis A, G Giakas and L Stergioulas (2001). Instantaneous frequency of EMG during isometric exercise of the paraspinal muscle. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #O65

31. Buzzi UH, Stergiou N, Giakas G, Dierks TA, and AD Georgoulis (2001). The effect of ACL reconstruction on locomotor variability. 25th Annual Meeting of the American Society of Biomechanics University of California at San Diego, USA

30. Georgakis A, G Giakas and L Stergioulas (2001). Time-Frequency filtering in biomechanics. Presented at XVII Congress of the International Society of Biomechanics, Zurich, Switzerland. July 8-13 #P601

29. Chockalingam N, Dangerfield P H, Cochrane T and G Giakas (2000). Examination of relative movement between the back and lower limb, International Meeting of the IRSSD, Clermont-Ferrand, France.

28. Chockalingam N, Dangerfield P H, Cochrane T and G Giakas (2000). Study of marker placements in the back for optoelectronic motion analysis, International Meeting of the IRSSD, Clermont-Ferrand, France.

27. Chockalingam N, Dangerfield P H, Cochrane T and G Giakas (2000). Computer assisted system for reliable assessment of spinal deformities. Joint Meeting of the British Association of Clinical Anatomists and American Association of Clinical Anatomists, Cambridge, UK.

26. Giakas G, Stergioulas L and A Vourdas (1999). Filtering of non stationary kinematic signals. XVI Congress of the International Society of Biomechanics, Calgary, Canada.

25. Iossifidou A, V Baltzopoulos and G Giakas (1999). Peak power in isokinetic dynamometry. XVI Congress of the International Society of Biomechanics, Calgary, Canada.

24. Giakas G, A Iossifidou and V Baltzopoulos (1999). Isokinetic peak power and prediction of performance. International Society of Biomechanics in Sports Annual Conference, Perth, Australia.

23. Giakas G (1998). Kinematics of the javelin: a data processing strategy. 11th Commonwealth Conference, Kuala Lumpur, Malaysia.

22. Giakas G and V Baltzopoulos (1998). The effects of noise and filtering on the calculation of net joint dynamics of the lower segments during walking. European Society of Biomechanics Conference, Toulouse, France. (*travelling grant from ESB).

21. Giakas G, Karatzaferi C and A. Sargeant (1998). Fatigue profile in isokinetic ergometry. European College of Sports Science Annual Conference, Manchester, UK.

20. Giakas G, Vourdas A and L Stergioulas (1998). A time-frequency domain approach for filtering non stationary kinematic signals. European College of Sports Science Annual Conference, Manchester, UK.

19. Giakas G, Baltzopoulos V and R Bartlett (1997). Extrapolation techniques in recursive digital filtering. BASES Annual Conference, York, UK. (*award winning presentation)

18. Giakas G, Tsirakos D, Morriss C and Baltzopoulos V (1997). Smoothing kinematic data of rapid action movements: an application to javelin throwing. BASES Annual Conference, York, UK.

17. Giakas G and V Baltzopoulos (1997). Higher derivative determination in digital filtering: a different cut-off frequency strategy. 16th Southern Biomedical Engineering Conference, Broadwater Beach Resort and Hotel, Biloxi, MS, USA

16. Giakas G and V Baltzopoulos (1997). Automatic filtering techniques in biomechanics: A comparison using walking data. 16th Southern Biomedical Engineering Conference, Broadwater Beach Resort and Hotel, Biloxi, MS, USA

15. Tsirakos D, Baltzopoulos V, Bartlett R, and G Giakas (1997) Sensitivity of elbow flexion and extension moment arms relative to the number and location of wrapping points. 16th Southern Biomedical Engineering Conference, Broadwater Beach Resort and Hotel, Biloxi, MS, USA

14. Giakas G and V Baltzopoulos (1995). Comparison of ground reaction force measurements between normal and scoliotic gait using time and frequency domain analysis. XV Congress of the International Society of Biomechanics, Jyvaskyla, Finland.

13. Baltzopoulos V and G Giakas (1995) A comparison between different automatic filtering techniques. BASES Biomechanics Section, Easter Meeting, Leeds, UK, April 20-21.

12. Dangerfield PH, G Giakas, V Baltzopoulos, DN Scutt, N Scullion and JC Dorgan (1995). A computerised method for reliable measurements of spinal deformities in scoliosis. Second  joint meeting of the American Association of Clinical Anatomists and the British Association of Clinical Anatomists, Mayo Foundation, Rochester, Minnesota, USA.

11. Dangerfield PH, JD Pearson, DN Scutt, G Giakas, JC Dorgan, and CA Hobson. (1995). Computerised Body shape analysis: a tool to measure the 3D shape of the body? Experience gained from measurement of the deformity of scoliosis. Second joint meeting of the American Association of Clinical Anatomists and the British Association of Clinical Anatomists, Mayo Foundation, Rochester, Minnesota, USA.

10. Giakas G, V Baltzopoulos, PH Dangerfield, DN Scutt, N Scullion and JC Dorgan (1995). A computerised method for reliable measurement of spine deformities in scoliosis. Roentgen Centenary Congress, Birmingham, UK, British Institute of Radiology, p412, June 12-16.

9. Giakas G, PH Dangerfield, V Baltzopoulos and JC Dorgan  (1995). Gait analysis of adolescent scoliotic children using harmonical analysis of ground reaction forces. British Scoliosis Society Annual Meeting, Windermere, UK.

8. Giakas G, PH Dangerfield, V Baltzopoulos, DN Scutt, N Scullion and JC Dorgan (1995). A computerised method for reliable measurements of spinal deformities in scoliosis. British Scoliosis Society Annual Meeting, Windermere, UK.

7. Giakas G and V Baltzopoulos, (1994). Variability of Fourier transformation of ground reaction forces. BASES Annual Conference, Aberdeen, UK.

6. Giakas G and V Baltzopoulos, (1994). Bilateral symmetry of ground reaction forces using Fast Fourier Transformation. BASES Annual Conference, Aberdeen, UK.

5. Dangerfield PH., S Dalmira, V Baltzopoulos, G Giakas, DN Scutt, JC Dorgan and DA Brodie. (1994). Analysis of the gait patterns of children with adolescent idiopathic scoliosis. European Spinal Deformity Society, Fifth Biannual Conference, Birmingham, UK.

4. Baltzopoulos V, K Gibbins and G Giakas (1994). The effects of an orthotic trainer for severely affected cerebral palsy children. International Conference on Clinical Gait Analysis, Dundee, UK.

3. Dangerfield PH., G Giakas, S Dalmira, V Baltzopoulos, JC Dorgan and DA Brodie (1994). Gait analysis of patients with adolescent idiopathic scoliosis. Second International Symposium on three dimensional scoliotic deformities combined with 8th International symposium on surface topography and spinal deformity. Pescara, Italy.

2. Dangerfield PH, JD Pearson, JC Dorgan, CA Hobson, DN Scutt and G Giakas (1994). Clinical experience of employing computerised back shape analysis to measure the 3D deformity of scoliosis. Second International Symposium on three dimensional scoliotic deformities combined with 8th International symposium on surface topography and spinal deformity. Pescara, Italy.

1. Dangerfield PH, G Giakas, V Baltzopoulos, and J Dorgan. (1994) Comparison of GRF patterns between healthy and adolescent scoliotic children using frequency domain parameters. British Association of Clinical Anatomists Annual Conference, London, UK.