Evident difference in the excitability of the motoneuron pool between normal subjects and patients with spasticity assessed by a new method using H-reflex and M-response.
The excitability of the motoneuron (MN) pool in the resting state was compared between normal control subjects and patients with spasticity resulting from HTLV-I-associated myelopathy, using a new parameter, Hslp/Mslp, and the conventional parameters Hmax/Mmax and Hth/Mth. Differences in the excitability of the MN pool between these two groups reached a high degree of statistical significance only when assessed with the new parameter. This suggests the methodological advantage of the Hslp/Mslp over both Hmax/Mmax and Hth/Mth for evaluation of the excitability of the MN pool in the resting state.
Funase
K
K
Department of General Education, Japan.
Higashi
T
T
Yoshimura
T
T
Imanaka
K
K
Nishihira
Y
Y
D000200:Action Potentials / Q000502:physiology*; D000328:Adult; D006181:H-Reflex / Q000502:physiology*; D006801:Humans; D008875:Middle Aged; D009046:Motor Neurons / Q000502:physiology*; D009128:Muscle Spasticity / Q000209:etiology / Q000503:physiopathology*; D009431:Neural Conduction; D015493:Paraparesis, Tropical Spastic / Q000503:physiopathology