M. Akman, R. Bengi, M. Karatas, S. Kilinc, S. Sozay et al., Assessment of spasticity using isokinetic dynamometry in patients with spinal cord injury, Spinal Cord, vol.37, issue.9, pp.638-681, 1999.
DOI : 10.1038/sj.sc.3100892

B. Ashworth, Preliminary trial of carisoprodol in multiple sclerosis, Practitioner, vol.192, pp.540-542, 1964.

J. Avela, H. Kyrolainen, and P. Komi, Altered reflex sensitivity after repeated and prolonged passive muscle stretching, J Appl Physiol, vol.86, pp.1283-91, 1999.
DOI : 10.1097/00005768-199705001-01127

J. Avela, T. Finni, T. Liikavainio, E. Niemela, and P. Komi, Neural and mechanical responses of the triceps surae muscle group after 1 h of repeated fast passive stretches, Journal of Applied Physiology, vol.96, issue.6, pp.2325-2357, 2004.
DOI : 10.1152/japplphysiol.01010.2003

A. Berardelli, A. Sabra, M. Hallett, W. Beremberg, and S. Simon, Stretch reflexes of triceps surae in patients with upper motor neuron syndromes., Journal of Neurology, Neurosurgery & Psychiatry, vol.46, issue.1, pp.54-60, 1983.
DOI : 10.1136/jnnp.46.1.54

R. Bohannon and M. Smith, Interrater Reliability of a Modified Ashworth Scale of Muscle Spasticity, Physical Therapy, vol.67, issue.2, pp.206-213, 1987.
DOI : 10.1093/ptj/67.2.206

C. Broberg and G. Grimby, Measurement of torque during passive and active ankle movements in patients with muscle hypertonia: a methodological study, Scand J Rehabil Med, vol.9, pp.108-125, 1983.

D. Burke, K. Hagbarth, and L. Löstfeldt, Muscle spindle activity in man during shortening and lengthening contractions., The Journal of Physiology, vol.277, issue.1, pp.131-173, 1978.
DOI : 10.1113/jphysiol.1978.sp012265

D. Burke, H. Dickson, and N. Skuse, Task-dependent changes in the responses to low-threshold cutaneous afferent volleys in the human lower limb., The Journal of Physiology, vol.432, issue.1, pp.445-58, 1991.
DOI : 10.1113/jphysiol.1991.sp018393

D. Damiano, J. Quinlivan, B. Owen, P. Payne, K. Nelson et al., What does the Ashworth scale really measure and are instrumented measures more valid and precise?, Developmental Medicine & Child Neurology, vol.81, issue.2, pp.112-120, 2002.
DOI : 10.1038/sc.1996.8

J. Davies, M. Mayston, and D. Newham, Electrical and mechanical output of the knee muscles during isometric and isokinetic activity in stroke and healthy adults, Disability and Rehabilitation, vol.73, issue.2, pp.83-90, 1996.
DOI : 10.1136/jnnp.49.11.1288

J. Engsberg, K. Olree, S. Ross, and T. Park, Quantitative clinical measure of spasticity in children with cerebral palsy, Archives of Physical Medicine and Rehabilitation, vol.77, issue.6, pp.594-603, 1996.
DOI : 10.1016/S0003-9993(96)90301-9

J. Engsberg, S. Ross, K. Olree, and T. Park, Ankle spasticity and strength in children with spastic diplegic cerebral palsy, Developmental Medicine & Child Neurology, vol.15, issue.1, pp.42-49, 2000.
DOI : 10.1123/jab.14.1.52

K. Firoozbakhsh, C. Kunkel, A. Scremin, and M. Moneim, ISOKINETIC DYNAMOMETRIC TECHNIQUE FOR SPASTICITY ASSESSMENT, American Journal of Physical Medicine & Rehabilitation, vol.72, issue.6, pp.379-85, 1993.
DOI : 10.1097/00002060-199312000-00008

A. Franzoi, C. Castro, and C. Cardone, Isokinetic assessment of spasticity in subjects with traumatic spinal cord injury (ASIA???A), Spinal Cord, vol.37, issue.6, pp.416-436, 1999.
DOI : 10.1038/sj.sc.3100849

S. Gandevia, Spinal and supraspinal factors in human muscle fatigue, Physiol Rev, vol.81, pp.1725-89, 2001.

F. Goubel and E. Pertuzon, ??valuation De L ??lasticit?? Du Muscle in Situ Par Une M??thode De Quick-Release, Archives Of Physiology And Biochemistry, vol.81, issue.4, pp.697-707, 1973.
DOI : 10.3109/13813457309074474

R. Katz, G. Rovai, C. Brait, and W. Rymer, Objective quantification of spastic hypertonia: Correlation with clinical findings, Archives of Physical Medicine and Rehabilitation, vol.73, issue.4, pp.339-386, 1992.
DOI : 10.1016/0003-9993(92)90007-J

A. Lamontagne, F. Malouin, C. Richards, and F. Dumas, Impaired viscoelastic behaviour of spastic plantarflexors during passive stretch at different velocities, Clinical Biomechanics, vol.12, issue.7-8, pp.508-523, 1997.
DOI : 10.1016/S0268-0033(97)00036-3

A. Lamontagne, F. Malouin, C. Richards, and F. Dumas, Evaluation of Reflex- and Nonreflex-Induced Muscle Resistance to Stretch in Adults With Spinal Cord Injury Using Hand-held and Isokinetic Dynamometry, Physical Therapy, vol.78, issue.9, pp.964-75, 1998.
DOI : 10.1093/ptj/78.9.964

J. Lance, R. Feldman, R. Young, and W. Koella, Symposium synopsis Spasticity: disorder motor control Year book, pp.485-94, 1980.

N. Mngoma, E. Culham, and S. Bagg, Resistance to passive shoulder external rotation in persons with hemiplegia: Evaluation of an assessment system, Archives of Physical Medicine and Rehabilitation, vol.80, issue.5, pp.531-536, 1999.
DOI : 10.1016/S0003-9993(99)90194-6

G. Nuyens, D. Weerdt, W. Ketelaer, P. Spaepen, A. Staes et al., Torque variations during repeated passive isokinetic knee movements in persons with multiple sclerosis, J Rehabil Med, vol.33, pp.85-94, 2001.

G. Nuyens, D. Weerdt, W. Spaepen, A. Kiekens, C. Feys et al., Reduction of spastic hypertonia during repeated passive knee movements in stroke patients, Archives of Physical Medicine and Rehabilitation, vol.83, issue.7, pp.930-935, 2002.
DOI : 10.1053/apmr.2002.33233

J. Otis, L. Root, J. Pamilla, and M. Kroll, Biomechanical Measurement of Spastic Plantarflexors, Developmental Medicine & Child Neurology, vol.18, issue.Suppl., pp.60-66, 1983.
DOI : 10.1111/j.1469-8749.1983.tb13722.x

K. Perell, A. Scremin, O. Scremin, and C. Kunkel, Quantifying muscle tone in spinal cord injury patients using isokinetic dynamometric techniques, Spinal Cord, vol.3, issue.1, pp.46-53, 1996.
DOI : 10.1038/sc.1971.38

C. Perot, I. Mora, and F. Goubel, Muscle stretch used as conditioning stimulus for assessing a reciprocal inhibition, Electromyogr Clin Neurophysiol, vol.32, pp.331-340, 1992.

B. Schmit, J. Dewald, and W. Rymer, Stretch reflex adaptation in elbow flexors during repeated passive movements in unilateral brain-injured patients, Archives of Physical Medicine and Rehabilitation, vol.81, issue.3, pp.269-78, 2000.
DOI : 10.1016/S0003-9993(00)90070-4

C. Sköld, K. Harms-ringdahl, G. Hultling, R. Levi, and A. Seiger, Simultaneous ashworth measurements and electromyographic recordings in tetraplegic patients, Archives of Physical Medicine and Rehabilitation, vol.79, issue.8, pp.959-65, 1998.
DOI : 10.1016/S0003-9993(98)90095-8

R. Wang, M. Tsai, and R. Chan, EFFECTS OF SURFACE SPINAL CORD STIMULATION ON SPASTICITY AND QUANTITATIVE ASSESSMENT OF MUSCLE TONE IN HEMIPLEGIC PATIENTS1, American Journal of Physical Medicine & Rehabilitation, vol.77, issue.4, pp.282-289, 1998.
DOI : 10.1097/00002060-199807000-00003