LEHMANN, J. F. Spasticity : quantitative measurements as a basis for assessing effectiveness of therapeutic intervention. Arch Phys Mod Rehabil. 1989, 70, 1, 6-15
SKOLD, C. Simultaneous Ashworth measurements and electromyographic recordings in tetraplegic patients. Arch Phys Med Rehabil. 1998, 79, 8, 959-965
PISANO, F. Quantitative measures of spasticity in post-stroke patients. Clin Neurophysiol. 2000, 111, 6, 1015-1022
ALLISON, S. C. Correlation of quantitative measures with the modified Ashworth scale in the assessment of plantar flexor spasticity in patients with traumatic brain injury. J Neurol. 1995, 242, 10, 699-706