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Wurdeman SR, Myers SA, Stergiou N. (2014). Amputation effects on the underlying complexity within transtibial amputee ankle motion. Chaos. 24(1):013140.

Pickhinke J, Chien JH, Mukherjee M. (2014). Varying the speed of perceived self-motion affects postural control during locomotion. Stud Health Technol Inform. 196:319-24.

Vallabhajosula S, Judkins TN, Mukherjee M, Suh IH, Oleynikov D, Siu KC. (2013). Skills learning in robot-assisted surgery is benefited by task-specific augmented feedback. Surg Innov. 20(6):639-47.

Buster TW, Burnfield JM, Taylor AP, Stergiou N. (2013) Lower Extremity Kinematics During Walking and Elliptical Training in Individuals With and Without Traumatic Brain Injury. J Neurol Phys Ther. 37(4):176-86. doi: 10.1097/NPT.0000000000000022

Haworth JL, Harbourne RT, Vallabhajosula S, Stergiou N. (2013) Center of pressure and the projection of the time-course of sitting skill acquisition. Gait Posture. 38(4):806-11. doi: 10.1016/j.gaitpost.2013.03.027.

Lockhart T, Stergiou N. (2013) New perspectives in human movement variability. Ann Biomed Eng. 41(8):1593-4.

Myers SA, Johanning JM, Pipinos II, Schmid KK, Stergiou N. (2013) Vascular occlusion affects gait variability patterns of healthy younger and older individuals. Ann Biomed Eng. 41(8):1692-702. doi: 10.1007/s10439-012-0667-4.

Harbourne RT, Ryalls B, Stergiou N. (2013) Sitting and Looking: A Comparison of Stability and Visual Exploration in Infants with Typical Development and Infants with Motor Delay. Phys Occup Ther Pediatr. Phys Occup Ther Pediatr. 34(2):197-211.

Wurdeman SR, Stergiou N. (2013) Temporal structure of variability reveals similar control mechanisms during lateral stepping and forward walking. Gait Posture. 38(1):73-8. doi: 10.1016/j.gaitpost.2012.10.017.

Manti P, Giannakopoulos G, Giouroukou E, Georgaki-Angelaki H, Stefanidis CJ, Mitsioni A, Stergiou N, Mihas C, Chrousos GP, Magiakou MA, Kolaitis G. (2013) Psychosocial and cognitive function in children with nephrotic syndrome: association with disease and treatment variables. Biopsychosoc Med. 7(1):10. doi: 10.1186/1751-0759-7-10.

McGrath D, Doheny EP, Walsh L, McKeown D, Cunningham C, Crosby L, Kenny RA, Stergiou N, Caulfield B, Greene BR. (2012) Taking balance measurement out of the laboratory and into the home: discriminatory capability of novel centre of pressure measurement in fallers and non-fallers. Conf Proc IEEE Eng Med Biol Soc. 3296-9. doi: 10.1109/EMBC.2012.6346669.

Ristanis S, Tsepis E, Giotis D, Zampeli F, Stergiou N, Georgoulis AD. (2011) Knee flexor muscle responses under fatigue after harvesting the hamstrings for anterior cruciate ligament reconstruction. [corrected]. Clin J Sport Med. 21(4):288-93. doi: 10.1097/JSM.0b013e31821f5b4f. Erratum in: Clin J Sport Med. 2011 Sep;21(5):466.

Hreljac A, Stergiou N. (2000) Phase determination during normal running using kinematic data. Med Biol Eng Comput. 38(5):503-6.

Stergiou, N., Yu, Y., Kyvelidou, A. (2013) A perspective on human movement variability with applications in infancy motor development. Kinesiology Review 2:93-102(PDF)

Decker LM, Cignetti F, Stergiou N. (2013) Executive function orchestrates regulation of task-relevant gait fluctuations. Gait Posture 38(3):537-40. doi: 10.1016/j.gaitpost.2012.12.018.

Arpin DJ, Stuberg W, Stergiou N, Kurz MJ. (2013) Motor control of the lower extremity musculature in children with cerebral palsy. Res Dev Disabil.34(4):1134-1143

Sethi A, Patterson T, McGuirk T, Patten C, Richards LG, Stergiou N. (2013) Temporal structure of variability decreases in upper extremity movements post stroke. Clin Biomech28(2):134-9. doi: 10.1016/j.clinbiomech.2012.11.006.

Kyvelidou A, Harbourne RT, Willet SL, Stergiou N. (2013) Sitting postural control in infants with typical development, motor delay, or cerebral palsy. Pediatric Physical Therapy 25(1):46-51(PDF)

Wurdeman SR, Myers SA, Jacobsen AL, Stergiou N. (2013) Prosthesis preference is related to stride-to-stride fluctuations at the prosthetic ankle. JRRD.50(5):671-86.(PDF)

Wurdeman SR, Huisinga JM, Filipi M, Stergiou N. (2013) Multiple Sclerosis Alters the Mechanical Work Performed on the Body's Center of Mass during Gait. J Appl Biomech. 29(4):435-42. (PDF)

Kaipust JP, McGrath D, Mukherjee M, Stergiou N. (2013) Gait Variability is Altered in Older Adults When Listening to Auditory Stimuli with Differing Temporal Structures. Ann Biomed Eng.41(8):1595-603. doi: 10.1007/s10439-012-0654-9. (PDF)

Huisinga JM, Schmid KK, Filipi ML, Stergiou N. (2013) Gait Mechanics are Different between Healthy Controls and Patients with Multiple Sclerosis. J Appl Biomech. 29(3):303-11. (PDF)

Wurdeman SR, Myers SA, Stergiou N. (2013) Transtibial amputee joint motion has increased attractor divergence during walking compared to non-amputee gait. Annals of Biomedical Engineering.Annals of Biomedical Engineering. 41(4):806-13.(PDF)

Dusing SC, Thacker LR, Stergiou N, Galloway JC. (2013). Early Complexity Supports Development of Motor Behaviors in the First Months of Life. Dev Psychobiol. 55(4):404-14. doi: 10.1002/dev.21045. (PDF)

Yentes JM, Hunt N, Schmid KK, Kaipust JP, McGrath D, Stergiou N. (2013) The Appropriate Use of Approximate Entropy and Sample Entropy with Short Data Sets. Ann Biomed Eng. 41(2):349-365 (PDF)

Patras K, Zampeli F, Ristanis S, Tsepis E, Ziogas G, Stergiou N, Georgoulis AD. (2012) Hamstring-dominant strategy of the bone-patellar tendon-bone graft anterior cruciate ligament-reconstructed leg versus quadriceps-dominant strategy of the contralateral intact leg during high-intensity exercise in male athletes. Arthroscopy. 28(9):1262-70 (PDF)

Mukherjee M, Koutakis P, Siu KC, Fayad PB, Stergiou N. (2012) Stroke Survivors Control the Temporal Structure of Variability During Reaching in Dynamic Environments. Ann Biomed Eng. 41(2):366-76. doi: 10.1007/s10439-012-0670-9. (PDF)

Koutakis P, Mukherjee M, Vallabhajosula S, Blanke DJ, Stergiou N. (2012) Path integration: Effect of curved path complexity and sensory system on blindfolded walking. Gait Posture. 37(2):154-8. doi: 10.1016/j.gaitpost.2012.06.027. (PDF)

Cignetti F, Decker LM, Stergiou N. (2012) Sensitivity of the Wolf's and Rosenstein's Algorithms to Evaluate Local Dynamic Stability from Small Gait Data Sets: Response to Commentaries by Bruijn et al. Ann Biomed Eng. 40(12): 2507-9. (PDF)

Vallabhajosula S, Yentes JM, Momcilovic M, Blanke DJ, Stergiou N. (2012). Do lower-extremity joint dynamics change when stair negotiation is initiated with a self-selected comfortable gait speed? . Gait Posture. 35(2):203-8.(PDF)

Yentes JM, Huisinga JM, Myers SA, Pipinos II, Johanning JM, Stergiou N. (2012). Pharmacological treatment of intermittent claudication does not have a significant effect on gait impairments during claudication pain. J Appl Biomech 28(2):184-91.

Huisinga JM, Schmid KK, Filipi ML, Stergiou N. (2012). Persons with multiple sclerosis show altered joint kinetics during walking after participating in elliptical exercise. J Appl Biomech. 28(3):249-57.(PDF)

Wurdeman SR, Koutakis P, Myers SA, Johanning JM, Pipinos II, et al. (2012). Patients with peripheral arterial disease exhibit reduced joint powers compared to velocity-matched controls. Gait & posture. 36(3): 506-509. (PDF)

Huisinga JM, Yentes JM, Filipi ML, Stergiou, N. (2012). Postural control strategy during standing is altered in patients with multiple sclerosis. Neuroscience letters. 524(2): 124-128. (PDF)

Kaipust JP, McGrath D, Mukherjee M, Stergiou N. (2012) Gait variablility is altered in older adults when listening to auditory stimuli with differing temporal structures.Ann Biomed Eng.41(8):1595-1603.(PDF)

Kaipust JP, Huisinga JM, Filipi M, Stergiou N. (2012). Gait variability measures reveal differences between multiple sclerosis patients and healthy controls. Motor Control. 16(2):229-244. (PDF)

Decker, L. M., Cignetti, F., Potter, J. F., Studenski, S. A., & Stergiou, N. (2012). Use of motor abundance in young and older adults during dual-task treadmill walking. PloS One.7(7), 41306-e41306.(PDF)

Wurdeman SR, Yentes JM, Huben NB, Sergiou N. (2012). An unstable shoe with a rocker bottom redistributes external work. Footwear Sci. 4(2):153-8.(PDF)

Wurdeman SR, Myers SA, Johanning JM, Pipinos II, Stergiou N. (2012). External work is deficient in both limbs of patients with unilateral PAD. Med Eng Phys. 34(10):1421-6. doi: 10.1016/j.medengphy.2012.01.004.(PDF)

Decker LM, Cignetti F, Stergiou N. (2012). Wearing a safety harness during treadmill walking influences lower extremity kinematics mainly through changes in ankle regularity and local stability. J Neuroeng Rehabil. 9(1):8.(PDF)

Wurdeman SR, Huben NG, Stergiou N. (2012). Variability of gait is dependent on direction of progression: Implications for active control. J Biomech. 45(4):653-659.(PDF)

Vallabhajosula S, Yentes JM, Stergiou N. (2012). Frontal joint dynamics when initiating stair ascent from a walk versus a stand. J Biomech. 45(3):609-613.(PDF)

Cignetti F, Decker LM, Stergiou N. (2011). Sensitivity of the Wolf's and Rosenstein's algorithms to evaluate local dynamic stability from small gait data sets. Ann Biomed Eng. 40(5):1122-30.(PDF)

Huisinga JM, Filipi ML, Stergiou N. (2011). Supervised resistance training results in changes in postural control in patients with multiple sclerosis. Motor Control. 16(1):50-63.(PDF)

Patras K, Ziogas G, Ristanis S, Tsepis E, Tsiaras V, Stergiou N, Georgoulis AD. (2011). Endurance markers are related with local neuromuscular response for the intact but not for the ACL reconstructed leg during high intensity running. J Sports Med Phys Fitness. 51(4):708-714.(PDF)

Smith BA, Stergiou N, Ulrich BD. (2011). Patterns of gait variability across the lifespan in persons with and without down syndrome. J Neurol Phys Ther. 35(4):170-177.(PDF)

Smith BA, Teulier C, Sansom J, Stergiou N, Ulrich BD. (2011). Approximate entropy values demonstrate impaired neuromotor control of spontaneous leg activity in infants with myelomeningocele. Pediatr Phys Ther. 23(3):241-7.

Mukherjee M, Siu KC, Katsavelis D, Fayad P, Stergiou N. (2011). The influence of visual perception of self-motion on locomotor adaptation to unilateral limb loading. J Mot Behav. 43(2):101-11.(PDF)

Wurdeman SR, Huisinga JM, Filipi M, Stergiou N. (2011). Multiple sclerosis affects the frequency content in the vertical ground reaction forces during walking. Clin Biomech. 26(2): 207-212 (PDF)

Myers SA, Pipinos II, Johanning JM, Stergiou N. (2011) Gait variability of patients with intermittent claudication is similar before and after the onset of claudication pain. Clin Biomech. 26(7): 729-734. (PDF)

Giotis D, Tsiaras V, Ristanis S, Zampeli F, Mitsionis G, Stergiou N, Georgoulis AD. (2011) Knee braces can decrease tibial rotation during pivoting that occurs in high demanding activities. Knee Surg Sports Traumatol Arthrosc. 19(8): 1347-1354. (PDF)

Deffeyes JE, Harbourne RT, Stuberg WA, Stergiou N. (2011) Sensory information utlization and time delays characterize motor developmental pathology in infant sitting postural control. Motor Control. 15(2): 302-317. (PDF)

Stergiou N, Decker LM. (2011) Human movement variability, nonlinear dynamics, and pathology: Is there a connection? Hum Mov Sci. 30:(5): 869-888. (PDF)

Huisinga JM, Filipi ML, Stergiou N. (2011) Elliptical exercise improves fatigue ratings and quality of life in patients with multiple sclerosis. J Rehabil Res Dev. 48(7): 881-890. (PDF)

Huisinga JM, Filipi ML, Schmid KK, Stergiou N. (2011) Is there a relationship between fatigue questionnaires and gait mechanics in persons with multiple sclerosis?. Arch Phys Rehabil. 92(10): 1594-1601(PDF)

Decker LM, Moraiti C, Stergiou N, Georgoulis AD. (2011) New insights into anterior cruciate ligament deficiency and reconstruction through the assessment of knee kinematic variability in terms of nonlinear dynamics. Knee Surg Sports Traumatol Arthrosc. 19:(10): 1620-1633. (PDF)

Cignetti F, Kyvelidou A, Harbourne RT, Stergiou N. (2011). Anterior-posterior and medial-lateral control of sway in infants during sitting acquisition does not become adult-like. Gait Posture. 33(1):88-92.(PDF)

Yentes JM, Sayles H, Meza J, Mannino DM, Rennard SI, Stergiou N. (2011). Walking abnormalities are associated with COPD: An investigation of the NHANES III dataset. Respir Med. 105(1):80-87.(PDF)

Harbourne RT, Willett S, Kyvelidou A, Deffeyes J, Stergiou N. (2010). A comparison of interventions for children with cerebral palsy to improve sitting postural control: A clinical trial. Phys Ther. 90(12):1881-98.(PDF)

Zampeli F, Moraiti CO, Xergia S, Tsiaras VA, Stergiou N, Georgoulis AD. Stride-to-stride variability is altered during backward walking in anterior cruciate ligament deficient patients. Clin Biomech. 25(10):1037-1041.(PDF)

Deffeyes JE, Harbourne RT, Stuberg WA, Stergiou N. (2010). Approximate entropy used to assess sitting postural sway of infants with developmental delay. Infant Behav Dev.34(1): 81-99

Kyvelidou A, Harbourne RT, Shostrom VK, Stergiou N. (2010). Reliability of center of pressure measures for assessing the development of sitting postural control in infants with or at risk of cerebral palsy. Arch Phys Med Rehabil. 90(7):1176-84.(PDF)

Huisinga JM, Pipinos II, Stergiou N, Johanning JM. (2010). Treatment with pharmacological agents in peripheral arterial disease patients does not result in biomechanical gait changes. J Appl Biomech. 26(3):341-8.(PDF)

Siu KC, Suh IH, Mukherjee M, Oleynikov D, Stergiou N. (2010). The effect of music on robot-assisted laparoscopic surgical performance. Surg Innov. 17(4): 306-311.(PDF)

Ziogas GG, Patras KN, Stergiou N, Georgoulis AD. (2011). Velocity at lactate threshold and running economy must also be considered along with maximal oxygen uptake when testing elite soccer players during preseason. J Strength Cond Res. 25(2): 414-9. (PDF)

Patras K, Ziogas G, Ristanis S, Tsepis E, Stergiou N, Georgoulis AS. (2010). ACL reconstructed patients with a BPTB graft present an impaired vastus lateralis neuromuscular response during high intensity running. J Sci Med Sport. 13(6):573-577. (PDF)

Myers SA, Stergiou N, Pipinos II, Johanning JM. (2010). Gait variability patterns are altered in healthy young individuals during the acute repurfusion phase of ischemia-repurfusion. J Surg Res. 164(1): 6-12.(PDF)

Decker LM, Cignetti F, Stergiou N. (2010). Complexity and Human Gait. Revista Andaluza de Medicina del Deporte. 3(1): 2-12.(PDF)

Kyvelidou A, Harbourne RT, Stergiou N. (2010). Severity and characteristics of developmental delay can be assessed using variability measures of sitting posture. Pediatr Phys Ther. 22(3):259-66.(PDF)

Cavanaugh JT, Stergiou N. (2010). Response to Chastin et al: Analysis of Nonlinear Patterns of Activity. J Gerontol A Biol Sci Med Sci. 65A(2):197-203. (PDF)

Koutakis P, Johanning JM, Haynatzki GR, Myers SA, Stergiou N, Longo GM, Pipinos II. (2010). Abnormal joint powers before and after the onset of claudication symptoms. J Vasc Surg. 52(2):340-7.(PDF)

Moraiti CO, Stergiou N, Vasiliadis HS, Motsis E, Georgoulis A. (2010). Anterior cruciate ligament reconstruction results in alterations in gait variability. Gait Posture. 32(2):169-75.(PDF)

Katsavelis D, Mukherjee M, Decker L, Stergiou N. (2010). The effect of virtual reality on gait variability. Nonlinear Dynamics Psychol Life Sci. 14(3):239-56.(PDF)

Huisinga JM, Pipinos II, Johanning JM, Stergiou N. (2010). The effect of pharmacological treatment on gait biomechanics in peripheral arterial disease patients. J Neuroeng Rehabil. 7:25.(PDF)

Smith BA, Stergiou N, Ulrich BD. (2010). Lyapunov exponent and surrogation analysis of patterns of variability: profiles in new walkers with and without Down Syndrome. Motor Control. 14(1):126-42.(PDF)

Katsavelis D, Mukherjee M, Decker L, Stergiou N. (2010). Variability of lower extremity joint kinematics during backward walking in a virtual environment. Nonlinear Dynamics Psychol Life Sci. 14(2):165-178.(PDF)

Morley JB, Decker LM, Dierks T, Blanke D, French JA, Stergiou N. (2010). Effects of varying amounts of pronation on the mediolateral ground reaction forces during barefoot versus shod running. J Appl Biomech. 26(2):205-14.(PDF)

Filipi ML., Leuschen MP., Huisinga J., Schmaderer L., Vogel J., Kucera D., Stergiou N. (2010). Impact of Resistance Training on Balance and Gait in Multiple Sclerosis, Int J MS CARE. 12(1):6-12. (PDF)

Kurz MJ, Markopoulou K, & Stergiou, N. (2010). Attractor divergence as a metric for assessing walking balance. Nonlinear Dynamics Psychol Life Sci.14(2):151-164. (PDF)

Luo HY, Ci S, Wu DL, Stergiou N, Siu KC. (2010). A remote markerless human gait tracking for e-healthcare based on content-aware wireless multimedia communications. Ieee Wireless Communications. 17(1):44-50. (PDF)

Thigpen CA, Padua DA, Michener LA, Guskiewicz K, Giuliani C, Keener JD, Stergiou N. (2010). Head and shoulder posture affect scapular mechanics and muscle activity in overhead tasks. J Electromyogr Kinesiol. 20(4):701-109.(PDF)

Siu KC, Suh IH, Mukherjee M, Oleynikov D, Stergiou N (2010). The impact of environmental noise on robot-assisted laparoscopic surgical performance. Surgery. 147(1):107-13. (PDF)

Koutakis P, Pipinos II, Myers SA, Stergiou N, Lynch TG, Johanning JM (2010). Joint torques and powers are reduced during ambulation for both limbs in patients with unilateral claudication. J Vasc Surg. 51(1):80-8. (PDF)

Cavanaugh JT, Kochi N, Stergiou N. (2010). Nonlinear Analysis of Ambulatory Activity Patterns in Community-Dwelling Older Adults. J Gerontol A Biol Sci Med Sci. 65(2):197-203.(PDF)

Dusing SC, Kyvelidou A, Mercer VS, Stergiou N.(2009).Infants Born Preterm Exhibit Different Patterns of Center-of-Pressure Movement Than Infants Born at Full Term. Phys Ther. 89(12): 1354-62.(PDF)

Deffeyes JE, Kochi N, Harbourne RT, Kyvelidou A, Stuberg WA, Stergiou N.(2009).Nonlinear Detrended Fluctuation Analysis of Sitting Center-of-Pressure Data as an Early Measure of Motor Development Pathology in Infants. Nonlinear Dynamics Psychol Life Sci. 13(4):351-68.(PDF)

Ristanis S, Stergiou N, Siarava E, Ntoulia A, Mitsionis G, Georgoulis AD. (2009). Effect of femoral tunnel placement for reconstruction of the anterior cruciate ligament on tibial rotation. J Bone Joint Surg Am. 91(9):2151-8.(PDF)

Myers SA, Johanning JM, Stergiou N, Celis RI, Robinson L, Pipinos II. (2009). Gait variability is altered in patients with peripheral arterial disease. J Vasc Surg. 49(4):924-931.(PDF)

Chouliaras V, Ristanis S, Moraiti C, Tzimas V, Stergiou N, Georgoulis AD. (2009). Anterior cruciate ligament reconstruction with a quadrupled hamstrings tendon autograft does not restore tibial rotation to normative levels during landing from a jump and subsequent pivoting. J Sports Med Phys Fitness. 49(1):64-70. (PDF)

Patras K, Ziogas G, Ristanis S, Tsepis E, Stergiou N, Georgoulis AD. (2009). High intensity running results in an impaired neuromuscular response in ACL reconstructed individuals. Knee Surg Sports Traumatol Arthrosc. 17(8):977-84.(PDF).

Deffeyes JE, Harbourne RT, Dejong SL, Kyvelidou A, Stuberg WA, Stergiou N. (2009). Use of information entropy measures of sitting postural sway to quantify developmental delay in infants. J Neuroeng Rehabil. 6(1):34.(PDF)

Moraiti CO, Stergiou N, Ristanis S, Vasiliadis HS, Patras K, Lee C, Georgoulis AD. (2009). The effect of anterior cruciate ligament reconstrunction on stride-to-stride variability. Arthroscopy.25(7):742-9.(PDF)

Deffeyes JE, Harbourne RT, Kyvelidou A, Stuberg WA, Stergiou N. (2009). Nonlinear analysis of sitting postural sway indicates developmental delay in infants. Clin Biomech. 24(7):564-570.(PDF)

Kyvelidou A, Harbourne RT, Stuberg WA, Sun J, Stergiou N. (2009). Reliability of Center of Pressure Measures for Assessing the Development of Sitting Postural Control. Arch Phys Med Rehabil. 90:1176-84.(PDF)

Decker, L., Houser, J. J., Noble, J.M., Karst, M. G., Stergiou, N. (2009) The effects of shoe traction and obstacle height on lower extremity coordination dynamics during walking. Applied Ergonomics. 40:895-903.(PDF)

Kyvelidou A, Stuberg WA, Harbourne RT, Deffeyes JE, Blanke D, Stergiou N. (2009). Development of upper body coordination during sitting in typically developing infants. Pediatr Res. 65(5): 553-8.(PDF)

Volkman, K.G., Stergiou, N., Stuberg, W., Blanke, D., Stoner, J. (2009) Factors affecting functional reach scores in youth with typical development. Pediatric Physical Therapy. 21(1):38-44.(PDF)

Harbourne, R.T., Stergiou, N.(2009) Perspective on Movement Variability and the Use of Nonlinear Tools: Principles to Guide Physical Therapy Practice. Physical Therapy. 89(3): 1-15.(PDF)

Suh, I.H., Siu, K.C., Mukherjee, M., Monk, E., Oleynikov, D., Stergiou, N. (2009) Consistency of performance of robot-assisted surgical tasks in virtual reality. Studies in Health Technology and Informatics. 142: 369-373.(PDF)

Mukherjee, M., Siu, K.C., Suh, I.H., Andrew, K.,Klutman, A., Oleynikov, D., Stergiou, N. (2009) A Virtual Reality Training Program for improvement of robotic surgical skills. Studies in Health Technology and Informatics. 142: 210-214.(PDF)

Potach DH, Katsavelis D, Karst GM, Latin RW, Stergiou, N. (2009) The effects of a plyometric training program on the latency time of the quadriceps femoris and gastrocnemius short-latency responses. Journal of Sports Medicine & Physical Fitness. Mar;49(1):35-43.(PDF)

Harbourne, R.T., Deffeyes, J.E., Kyvelidou, A., Stergiou, N. (2009) Complexity of postural control in infants: Linear & Nonlinear features developed by principal component analysis. Nonlinear Dynamics, Psychology and Life Sciences. 13(1):123-44. (PDF)

Celis, R., Pipinos, I.I., Scott-Pandorf, M.M., Myers, S.A., Stergiou, N., Johanning, J.M. (2009) Peripheral arterial disease affects kinematics during walking. Journal of Vascular Surgery. 49(1): 127-132 (PDF)

Judkins, T.N., Oleynikov, D., Stergiou, N. (2008) Electromyographic response is altered during robotic surgical training with augmented feedback. Journal of Biomechanics. 42(1):71-6. (PDF)

Kyvelidou, A., Kurz, M.J., Ehlers, J.L., Stergiou, N. (2008) Aging and partial body weight support affects gait variability. Journal of Neuroengineering and Rehabilitation. 19: 5:22. (PDF)

Houser, J.J., Decker, L., Stergiou, N. (2008) Stepping over obstacles of different heights and varied shoe traction alter the kinetic strategies of the leading limb. Ergonomics. 51(12):1847-59. (PDF)

Chen, S-J, Pipinos, I., Johanning, J., Radovic, M., Huisinga, J.M., Myers, S.A., Stergiou, N. (2008) Bilateral claudication results in alterations in the gait biomechanics at the hip and ankle joints. Journal of Biomechanics. 41(11): 2506-14. (PDF)

Judkins, T.N., Oleynikov, D., Stergiou, N. (2009) Objective evaluation of expert and novice performance during robotic surgical training tasks. Surgical Endoscopy. 23(3): 590-7. (PDF)

Judkins, T.N., Oleynikov, D., Stergiou, N. (2008) Enhanced robotic surgical training using augmented visual feedback. Surgical Innovation. 15(1): 59-68.(PDF)

Katsavelis, D., Siu, K-C, Brown-Clerk, B., Lee, I.H., Lee, Y.K., Oleynikov, D., Stergiou, N. (2009) Validated robotic laparoscopic surgical training in a virtual-reality environment. Surgical Endoscopy. 23(1): 66�73.(PDF)

Narazaki, K., Berg, K., Stergiou, N., Chen, B. (2009) Physiological demands of competitive basketball. Scand J Med Sci Sports. 19(3): 425-32. (PDF)

Brown-Clerk, B., Siu, K-C, Katsavelis, D., Lee, I., Oleynikov, D., Stergiou, N. (2008) Validating advanced robot-assisted laparoscopic training task in virtual reality. Studies in Health Technology and Informatics. 132: 45-9.(PDF)

Myers, S.A., Johanning, J.M., Stergiou, N., Lynch, T.G., Longo, G.M., Pipinos, I.I. (2008) Claudication distances and the Walking Impairment Questionnaire best describe the ambulatory limitations in patients with symptomatic peripheral arterial disease. Journal of Vascular Surgery. 47(3): 550-555.(PDF)

Cavanaugh, J.T., Mercer, V.S., Stergiou, N. (2007) Approximate entropy detects the effect of a secondary cognitive task on postural control in healthy young adults: a methodological report. Journal of Neuroengineering and Rehabilitation. �4:42. (PDF)

Moraiti, C., Stergiou, N., Ristanis, S., Georgoulis, A.D. (2007) ACL deficiency affects stride-to-stride variability as measured using nonlinear methodology. Knee Surgery, Sports Traumatology, Arthroscopy. 15(12): 1406-13. (PDF)

Scott-Pandorf, M.M., Stergiou, N., Johanning, J.M., Robinson, L., Lynch, T.G., Pipinos, I.I. (2007) Peripheral arterial disease affects ground reaction forces during walking. Journal of Vascular Surgery. 46(3): 491-9. (PDF)

Kurz, M.J., Stergiou, N. (2007) Do horizontal propulsive forces influence the nonlinear structure of locomotion? Journal of Neuroengineering and Rehabilitation. 15(4): 30. (PDF)

Stergiou, N., Ristanis, S., Moraiti, C., Georgoulis, A.D. (2007) Tibial rotation in anterior cruciate ligament (ACL)-deficient and ACL-reconstructed knees: a theoretical proposition for the development of osteoarthritis. Sports Medicine. 37(7): 601-13. (PDF)

Kurz, M.J, Stergiou, N. (2007) Hip actuations can be used to control bifurcations and chaos in a passive dynamic walking model. Journal of Biomechanical Engineering. 129(2): 216-22. (PDF)

Fiedler, M.J., Chen, S.J, Judkins, T.N., Oleynikov, D., Stergiou, N. (2007) Virtual reality for robotic laparoscopic surgical training. Studies in Health Technology and Informatics. 125: 127-9. (PDF)

Narazaki, K., Oleynikov, D., Stergiou, N. (2007) Objective assessment of proficiency with bimanual inanimate tasks in robotic laparoscopy. Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A. 17(1): 47-52. (PDF)

Georgoulis, A.D., Kiapidou, I-S., Velogianni, L., Stergiou, N. Boland, A. (2007) Herodicus, the father of sports medicine. Knee Surgery Sports Traumatology and Arthroscopy. 15(3):315-8. (PDF)

Volkman, K.G., Stergiou, N., Stuberg, W., Blanke, D., Stoner, J. (2007) Methods to improve the reliability of the functional reach test in children and adolescents with typical development. Pediatric Physical Therapy. 19(1): 20-7. (PDF)

Chouliaras, V., Ristanis, S., Moraiti, C., Stergiou, N., Georgoulis, A.D. (2007) Effectiveness of reconstruction of the anterior cruciate ligament with quadrupled hamstrings and bone-patellar tendon-bone autografts: an in vivo study comparing tibial internal-external rotation. The American Journal of Sports Medicine. 35(2): 189-96. (PDF)

Wristen, B., Evfans, S., Stergiou, N. (2006) Sight-Reading Versus Repertoire Performance on the Piano: A Case Study Using High-Speed Motion Analysis. Medical Problems of Performing Artists. 21(1):10-16. (PDF)

Georgoulis, A.D., Ristanis, S., Chouliaras, V., Moraiti, C., Stergiou, N. (2007) Tibial rotation is not restored after ACL reconstruction with a hamstring graft. Clinical Orthopaedics and Related Research. 454: 89-94. (PDF)

Cavanaugh, J.T., Guskiewicz, K.M., Guiliani, C., Marshall, S., Mercer, V.S., Stergiou, N. (2006) Recovery Of Postural Control After Cerebral Concussion: New Insights Using Approximate Entropy. Journal of Athletic Training. 41(3): 305-313. (PDF)

Stergiou, N., Harbourne, R.T., Cavanaugh, J.T. (2006) Optimal Movement Variability: A New Theoretical Perspective for Neurologic Physical Therapy. Journal of Neurologic Physical Therapy. 30(3):120-129. (PDF)

Ristanis, S., Stergiou, N., Patras, K., Tsepis, E., Moraiti, C., Georgoulis, A.D.(2006) Follow-up evaluation two years after ACL reconstruction with bone-patellar tendon-bone graft shows that excessive tibial rotation persists. Clinical Journal of Sports Medicine. 16(2):111-116. (PDF)

Georgoulis, A.D., Moraiti, C., Ristanis, S., Stergiou, N. (2006) A novel approach to measure variability in the anterior cruciate ligament deficient knee during walking: the use off the Approximate Entropy in Orthopaedics. Journal of Clinical Monitoring and Computing. 20(1):11-18. (PDF)

Judkins, T.N., Oleynikov, D., Narazaki, K., Stergiou, N. (2006) Robotic surgery and training: Electromyographic correlates of robotic laparoscopic training. Surgical Endoscopy 20(5):824-9. (PDF)

Kurz, M.J. & Stergiou, N. (2006) Original investigation correlated joint fluctuations can influence the selection of steady state gait patterns in the elderly. Gait and Posture. 24(4):435-440. (PDF)

Narazaki, K., Oleynikov, D., Stergiou, N. (2006) Robotic surgery training and performance: identifying objective variables for quantifying the extent of proficiency. Surgical Endoscopy 20(1):96-103. (PDF)

Wristen B, Stergiou N, Evans S. (2005). Using Three Dimensional Motion Capture Technology to Describe and Assess Piano Technique: A Case Study. Conference Presentations -- Music Faculty. Paper 2.(PDF)

Miller, D.J., Stergiou, N., Kurz, M.J. (2006) An improved surrogate method for detecting the presence of chaos in gait. Journal of Biomechanics. 39(15): 2873-6. (PDF)

Hreljac, A., Stergiou, N. Scholten, S.D. (2005) Joint kinetics of the ankle and knee when running over obstacles. Journal of Sports Medicine and Physical Fitness 45(4): 476-82. (PDF)

Judkins, T.N., Oleynikov, D., Stergiou N. (2006) Real-time augmented feedback benefits robotic laparoscopic training. Studies In Health Technology and Informatics. 119:243-8. (PDF)

Cavanaugh, J.T., Guskiewicz, K.M., Giuliani, C., Marshall, S., Mercer, V.S., Stergiou, N. (2005) Detecting altered postural control after cerebral concussion in athletes with normal postural stability. British Journal of Sports Medicine 39(11):805-11. (PDF)

Cavanaugh, J.T., Guskiewicz, K.M., Stergiou, N. (2005) A nonlinear dynamic approach for evaluating postural control: New directions for the management of sport-related cerebral concussion. Sports Medicine. 35(11):935-950. (PDF)

Ristanis, S., Stergiou, N., Patras, K., Vasiliadis, H., Giakas, G., Georgoulis, A.D.(2005) Excessive tibial rotation during high demanding activities is not restored by ACL reconstruction. Arthroscopy. 21(11):1323-9. (PDF)

Georgoulis, A.D., Ristanis, S., Papadonikolakis, A., Moebius, U., Moraiti, C., Stergiou, N. (2005) Electromechanical delay of the knee extensor muscles is not altered after harvesting the patellar tendon as a graft for anterior cruciate ligament reconstruction: Implications for sports performance.�Knee Surgery Sports Traumatology and Arthroscopy. 13(6):437-43. (PDF)

Georgoulis, A.D., Ristanis, S., Chouliaras, V., Moraiti, C., Stergiou, N. (2005). Anterior cruciate ligament reconstruction with a quadrupled hamstring autograft does not restore tibial rotation. Techniques in Orthopaedics. 20(3):328-333. (PDF)

Kurz, M.J., & Stergiou, N. (2005) An artificial neural network that utilizes hip joint actuations to control bifurcations and chaos in a passive dynamic bipedal walking model. Biological Cybernetics. 93(3):213-21. (PDF)

Kurz, M.J., Stergiou, N., Heidel, J., Foster, E.T. (2005). A template for the exploration of chaotic locomotive patterns. Chaos, Solitons, and Fractals. 23(2):485-493. (PDF)

Kurz MJ, Stergiou N, Buzzi UH, Georgoulis AD. (2005). The effect of anterior cruciate ligament reconstruction on lower extremity relative phase dynamics during walking and running. Knee Surgery, Sports Traumatology, Arthroscopy. 13(2):107-15. (PDF)

Stergiou, N., & Scott, M.M. (2005). Baseline measures are altered in biomechanical studies. Journal of Biomechanics. 38(1):175-178. (PDF)

Georgoulis, A.D., Ristanis, S., Moraiti, C., Mitsou, A., Bernard, M., Stergiou, N. (2005) Three-dimensional kinematics of the tibiofemoral joint in ACL-deficient and reconstructed patients shows increased tibial rotation. Operative Techniques in Orthopaedics. 15(1):49�56. (PDF)

Stergiou, N., Moraiti, C., Giakas, G., Ristanis, S., Georgoulis, A.D. (2004). The effect of the walking speed on the stability of the anterior cruciate ligament deficient knee. Clinical� Biomechanics. 19(9):957-963. (PDF)

Kurz, M. & Stergiou, N. (2004). Does Footwear Affect Ankle Coordination Strategies? Journal of the American Podiatric Medical Association. 94(1):53-58. (PDF)

Ristanis, S., Giakas, G., Papageorgiou, C.D., Moraiti, T., Stergiou, N.,Georgoulis, A.D. (2003) The effects of anterior cruciate ligament reconstruction on tibial rotation during pivoting after descending stairs. Knee Surgery, Sports Traumatology, Arthroscopy, 11(6):360-365. (PDF)

Kurz, M., Stergiou, N.,Blanke, D. (2003). Spanning set defines variability in locomotive patterns. Medical & Biological Engineering & Computing.(2):211-214. (PDF)

Papadonikolakis, A., Cooper, L., Stergiou, N., Georgoulis, A.D., Soucacos, P.N. (2003). Compensatory mechanisms in anterior cruciate ligament deficiency. Knee Surgery, Sports Traumatology, Arthroscopy. 11(4):235-243. (PDF)

Buzzi, U., Stergiou, N., Kurz, M., Hageman, P., Heidel, J.(2003). Nonlinear dynamics indicates aging affects variability during gait. Clinical Biomechanics. 18(5):435-443. (PDF)

Harbourne, R., & Stergiou, N. (2003). Nonlinear analysis of the development of sitting postural control. Developmental Psychobiology. 42(4):368-377. (PDF)

Kurz, M. & Stergiou, N. (2003). The aging neuromuscular system expresses less certainty for selecting joint kinematics during gait in humans. Neuroscience Letters. 348(3):155-158.(PDF)

Kurz, M.J. & Stergiou, N. (2002). The spanning set indicates that variability during the stance period of running is affected by footwear. Gait and Posture. 17(2):132-135. (PDF)

Georgoulis, A.D., Papadonikolakis, A., Papageorgiou, C.D., Mitsou, A., Stergiou, N. (2002) Three-dimensional tibiofemoral kinematics of the anterior cruciate deficient and reconstructed knee during walking. American Journal of Sports Medicine. 31(1):75-79. (PDF)

Kurz, M. & Stergiou, N. (2002). The effect of normalization and phase angle calculations on continuous relative phase, Journal of Biomechanics . 35(3):369-374. (PDF)

Byrne J.E., Stergiou N., Blanke, D.,Houser J.J., Kurz M.J.,Hageman P.A.(2002). Comparison of gait patterns between young and elderly women: an examination of coordination. Perceptual and Motor Skills. 94:265-280. (PDF)

Scholten, S.D., Stergiou, N., Hreljac A., Houser, J. Blanke, D. Alberts, L.R. (2002). Footstrike patterns after obstacle clearance during running. Medicine and Science in Sports and Exercise. 34(1):123-129. (PDF)

Stergiou, N., Giakas, G., Byrne, J., Pomeroy, V. (2002). Frequency domain characteristics of ground reaction forces during walking of you and elderly females. Clinical Biomechanics. 17(8):615-617. (PDF)

Stergiou, N., Bates, B.T. Kurz, M. (2003). Subtalar and knee joint interaction during running at various stride lengths. Journal of Sports Medicine and Physical Fitness. 43(3):319-326 (PDF)

Stergiou, N., Scholten, S.D., Jensen, J.L., Blanke, D. (2001). Intralimb coordination following obstacle clearance during running: the effect of obstacle height. Gait & Posture. 13(3):210-220. (PDF)

Stergiou, N., Jensen, J.L., Bates, B.T., Scholten, S.D., Tzetzis, G. (2001). A dynamical systems investigation of lower extremity coordination during running over obstacles. Clinical Biomechanics, 16(3)213-221. (PDF)

Stergiou, N., Bates, B.T., James, S.J. (1999). Asynchrony beteen subtalar and knee joint function during running. Med. Sci. Sports Exerc.. 31(11):1645-1655. (PDF)

Stergiou, N., Bates, B.T. (1997) The relationship between subtalar and knee joint function as a possible mechanism for running injuries. Gait & Posture. 6(3):177-185. (PDF)

Bates, B.T., Stergiou, N. (1996). Performance accommodation to midsole hardness during running. J.. Hum Movement Stud.. 31(4):189-210. (PDF)

Dufek, S. J., Bates, B.T., Stergiou, N., James, C., R. (1995). Interactive effects between group and single-subject response patterns. Hum. Mov. Scie. 14(3):301-323. Part 1(PDF) Part 2 (PDF)

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