Advanced quantitative estimation methods for spasticity: a literature review

Zichong Luo, Wai Leung Ambrose Lo, Ruihao Bian, Sengfat Wong, Le Li, Zichong Luo, Wai Leung Ambrose Lo, Ruihao Bian, Sengfat Wong, Le Li

Abstract

Post-stroke spasticity seriously affects patients' quality of life. Spasticity is considered to involve both neural and non-neural factors. Current clinical scales, such as the Modified Ashworth Scale and the Modified Tardieu Scale, lack reliability and reproducibility. These scales are also unable to identify the neural and non-neural contributions to spasticity. Surface electromyography and biomechanical and myotonometry measurement methods for post-stroke spasticity are discussed in this report. Surface electromyography can provide neural information, while myotonometry can estimate muscular properties. Both the neural and non-neural contributions can be estimated by biomechanical measurement. These laboratory methods can quantitatively assess spasticity. They can provide more valuable information for further study on treatment and rehabilitation than clinical scales.

Keywords: Post-stroke spasticity; biomechanical; myotonometry; quantitative assessment; review; surface electromyogram.

Conflict of interest statement

The authors declare that there is no conflict of interest.

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