People with human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) develop spasticity. The authors examined 34 patients with HAM/TSP in Perú using a device that measures tone in the gastroc-soleus-Achilles tendon unit and provides a quantitative spasticity assessment (QSA). Tone in the 34 patients was more than double that of women with asymptomatic HTLV-I infection. The device may help to track progression in HTLV-I infection. © 2005 Journal of NeuroVirology.
Zunt, J. R., Montano, S. M., Alarcón, J. O. V., Longstreth, W. T., Price, R., & Holmes, K. K. (2005). Quantitative assessment of spasticity in human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis. Journal of NeuroVirology, 70-73. https://doi.org/10.1080/13550280590900571