Bilateral and asymmetrical contributions of passive and active ankle plantar flexors stiffness to spasticity in humans with spinal cord injury | Zendy

Bing Chen | Zendy; Sina Sangari | Zendy; Jakob Lorentzen | Zendy; Jens Bo Nielsen | Zendy; Mónica A. Pérez | Zendy

Open Access

Bilateral and asymmetrical contributions of passive and active ankle plantar flexors stiffness to spasticity in humans with spinal cord injury

Author(s) -

Bing Chen,

Sina Sangari,

Jakob Lorentzen,

Jens Bo Nielsen,

Mónica A. Pérez

Publication year - 2020

Publication title -

journal of neurophysiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.302

H-Index - 245

eISSN - 1522-1598

pISSN - 0022-3077

DOI - 10.1152/jn.00044.2020

Subject(s) - spasticity , ankle , physical medicine and rehabilitation , reflex , spinal cord injury , h reflex , stretch reflex , medicine , spinal cord , soleus muscle , ankle jerk reflex , physical therapy , electromyography , anesthesia , anatomy , skeletal muscle , psychiatry

Spasticity affects a number of people with spinal cord injury (SCI). Using biomechanical, electrophysiological, and clinical assessments, we found that passive muscle properties and active spinal reflex mechanisms contribute bilaterally and asymmetrically to spasticity in ankle plantarflexor muscles in humans with chronic SCI. A self-reported questionnaire had poor agreement with the Modified Ashworth Scale in detecting asymmetries in spasticity. The nature of these changes might contribute to the poor sensitivity of clinical exams.

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