Research Studies

Featured Information

Education & Training

Education

Michigan State University, East Lansing, Michigan

Theoretical Mechanics/Biomechanics, Ph.D. , 1997

Fellowships

Northwestern University and the Rehabilitation

Systems Neurophysiology, Post Doctoral Fellowship , 1999

Recent Publications & Presentations

Finley JM, Dhaher YY, Perreault EJ.Regulation of feed-forward and feedback strategies at the human ankle during balance control. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:7265-8.

Cruz TH, Dhaher YY. Impaired lower limb muscle synergies post-stroke. Conf Proc IEEE Eng Med Biol Soc. 2009;2009:3956-9.

Cammarata ML, Dhaher YY.Evidence of gender-specific motor templates to resist valgus loading at the knee. Muscle Nerve. 2010 May;41(5):614-23.

Cruz TH, Dhaher YY.Impact of ankle-foot-orthosis on frontal plane behaviors post-stroke. Gait Posture. 2009 Oct;30(3):312-6.

Lewek MD, Cruz TH, Moore JL, Roth HR, Dhaher YY, Hornby TG. Allowing intralimb kinematic variability during locomotor training poststroke improves kinematic consistency: a subgroup analysis from a randomized clinical trial. Phys Ther. 2009 Aug;89(8):829-39.

Cruz TH, Lewek MD, Dhaher YY. Biomechanical impairments and gait adaptations post-stroke: multi-factorial associations.J Biomech. 2009 Aug 7;42(11):1673-7.

Gordon KE, Wu M, Kahn JH, Dhaher YY, Schmit BD. Ankle load modulates hip kinetics and EMG during human locomotion. J Neurophysiol. 2009 Apr;101(4):2062-76.

Hunter BV, Thelen DG, Dhaher YY.A three-dimensional biomechanical evaluation of quadriceps and hamstrings function using electrical stimulation. IEEE Trans Neural Syst Rehabil Eng. 2009 Apr;17(2):167-75.

Cammarata ML, Dhaher YY. The differential effects of gender, anthropometry, and prior hormonal state on frontal plane knee joint stiffness, Clin Biomech (Bristol, Avon). 2008 Aug;23(7):937-45.

Finley JM, Perreault EJ, Dhaher YY.Stretch reflex coupling between the hip and knee: implications for impaired gait following stroke. Exp Brain Res. 2008 Jul;188(4):529-40.

Keshner EA, Dhaher Y. Characterizing head motion in three planes during combined visual and base of support disturbances in healthy and visually sensitive subjects. Gait Posture. 2008 Jul;28(1):127-34.

Cruz TH, Dhaher YY.Evidence of abnormal lower-limb torque coupling after stroke: an isometric study. Stroke. 2008 Jan;39(1):139-47.

Lewek MD, Hornby TG, Dhaher YY, Schmit BD. Prolonged quadriceps activity following imposed hip extension: a neurophysiological mechanism for stiff-knee gait? J Neurophysiol. 2007 Dec;98(6):3153-62.

Hernández A, Dhaher Y, Thelen DG.In vivo measurement of dynamic rectus femoris function at postures representative of early swing phase. J Biomech. 2008;41(1):137-44.

Finley JM, Perreault EJ, Dhaher Y. Heteronymous Reflex Contributions to Circumduction in Stroke (Accepted for Publication in Experimental Brain Research; 2008).

Loehr, M. Dhaher, Y. The differential effects of gender, anthropometry, and prior hormonal state on frontal plane knee joint stiffness. (Accepted for Publication in Journal of Clinical Biomechanics; 2008).

Keshner, E. and Dhaher Y. Characterizing Head Motion in 3 Planes during Combined Visual and Base of Support Disturbances in Healthy and Visually Sensitive Subjects. (In print: Gait and Posture; 2008)

Hayes, T. and Dhaher, Y. Evidence of torque synergies in the lower extremities after stroke. Stroke, 39(1): pp.139-147, 2008.

Hernandez A, Dhaher Y. Thelen D. In vivo measurement of dynamic muscle function at postures representative of early swing phase. Journal of Biomechanics, 41(1): pp. 137-144, 2008.

Lewek MD, Hornby TG, Dhaher Y., Schmit BD, Prolonged Quadriceps Activity Following Imposed Hip Extension : A Neurophysiological Mechanism for Stiff-Knee Gait. Journal of Neurophysiology, 98(6): pp. 3153-3162, 2007.

Keshner, E., Dhaher Y., Streepey J. W., Hain T., Pairing virtual reality with dynamic
posturography serves to differentiate between patients experiencing visual vertigo. In press,
Journal of NeuroEngineering and Rehabilitation, 2007.

Lewek MD, Schmit BD, Hornby TG, Dhaher Y. Hip joint position modulates volitional knee extensor muscle activity post-stroke. Muscle and Nerve vol. 34 (6), Published on line September, 2006.

Dhaher, Y. and Francis M. Determination of the varus-valgus axis of rotation at the human knee: A helical axis representation, Journal of Orthopaedic Research, vol. 25 (1), Published on line December, 2006.

Dhaher Y.Y., Tsoumanis A.D., Houle T.T., and Rymer W.Z. Neuromuscular reflexes contribute to knee stiffness during valgus loading. J Neurophysiology Vol. 93(5), pp. 2698-709, 2005.

Gurses, S., Dhaher Y.*, Hain, T. C. and Keshner, E. A. Perturbation Parameters Associated with
Nonlinear Responses of the Head at Small Amplitudes. (Chaos, 2005; * corresponding Author).

Keshner, E., Kenyon R., Dhaher Y., Streepey J. W. Employing a virtual environment in postural research and rehabilitation to reveal the impact of visual information. International Journal on Disability and Human Development, vol 3(3), July-September, pp. 177-182, 2005.