{Abnormal cutaneous flexor reflex activity during controlled isometric plantarflexion in human spinal cord injury spasticity syndrome}
| Type of publication: | Article |
| Citation: | Gomez-Soriano2016 |
| Journal: | Spinal Cord |
| Volume: | 54 |
| Number: | 9 |
| Year: | 2016 |
| Pages: | 687--694 |
| ISSN: | 1362-4393 |
| URL: | http://www.nature.com/doifinde... |
| DOI: | 10.1038/sc.2016.9 |
| Abstract: | {STUDY DESIGN Although abnormal cutaneous reflex (CR) activity has been identified during gait after incomplete spinal cord injury (SCI), this activity has not been directly compared in subjects with and without the spasticity syndrome. OBJECTIVES Characterisation of CR activity during controlled rest and 'ramp and hold' phases of controlled plantarflexion in subjects with and without the SCI spasticity syndrome. DESIGN Transverse descriptive study with non-parametric group analysis. SETTING SCI rehabilitation hospital. METHODS Tibialis Anterior (TA) reflexes were evoked by innocuous cutaneous plantar sole stimulation during rest and ramp and hold phases of plantarflexion torque in non-injured subjects (n=10) and after SCI with (n=9) and without (n=10) hypertonia and/or involuntary spasm activity. Integrated TA reflex responses were analysed as total (50-300 ms) or short (50-200 ms) and long-latency (200-300 ms) activity. RESULTS Total and long-latency TA activity was inhibited in non-injured subjects and the SCI group without the spasticity syndrome during plantarflexion torque but not in the SCI spasticity group. Furthermore, loss of TA reflex inhibition during plantarflexion correlated with time after SCI ($\rho$=0.79 |
| Userfields: | p={0.02), despite similar non-reflex ta electromyographic activity during plantarflexion after sci in subjects with (0.11, 0.08-0.13 mv) or without the spasticity syndrome (0.09, 0.07-0.12 mv). conclusions this reflex testing procedure supports previously published evidence for abnormal cr activity after sci and may characterise the progressive disinhibition of ta reflex activity during controlled plantarflexion in subjects diagnosed with the spasticity syndrome.spinal cord advance online publication, 23 february 2016; doi:10.1038/sc.2016.9.}}, pmid={26902460}, |
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| Added by: | [] |
| Total mark: | 0 |
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