The purpose of this study was to investigate the validity of the modified Ashworth Scale (MAS) by using both the conventional (Hmax/Mmax ratio) and the new indicators (Hslp/Mslp) of motoneuron excitability. This research was a correlational study on twenty post-stroke patients. Main outcome measures were the MAS and electrophysiologic assessments. The latter was performed using both conventiona...

Gonzalez, Michael and William F. Collins, III. Modulation of whereas Type S motoneurons are able to dictate motor unit motoneuron excitability by brain-derived neurotrophic factor. J. contractile speed via an orthodromic mechanism (for review, Neurophysiol. 77: 502–506, 1997. The influence of neurotrophins see Mendell et al. 1994). on motoneuron survival and development has been well docuRecent...

Heart rate variability biofeedback (HRV BFB) is paced breathing scheme that stimulates resonance in the cardiovascular system. This study aimed to investigate effect of a single-session HRV BFB on Hoffman reflex (H-reflex) soleus muscle. Twelve healthy males (height: 173.7 ± 7.18 cm; weight: 72.7 17.7 kg; age: 24.0 5.02 yrs) completed randomized-crossover intervention involving 10-minute and no...

Effect of 5-weeks running training on modulation the H-reflex amplitude soleus muscle in non-trained men was studied. It established that occurs two phases. In course first 3 weeks (first phase) statistically significant (p < 0.05) increase amplitudes and maximum to M-response ratio (10%) were registered. contrast phase, decrease investigated parameters up initial values observed during next...

Background and Objective Numerous studies have examined the influence of pain on spinal reflex excitability, motor unit behaviour corticospinal excitability. Nevertheless, there are inconsistencies in conclusions made. This systematic review sought to understand effect supraspinal projections motoneurons properties by examining clinical or experimental following three domains: H-reflex, excitab...

EGb 761 has been shown to increase acetylcholine synthesis and release and increase cholinergic receptors leading to an increase in cholinergic neurotransmission. These effects may be observed in the neuromuscular system, manifested by changes in motoneuron pool excitability as measured by the Hoffmann reflex to motor response (H/M) ratio. The objective was to determine whether a single dose of...

A conditioned patellar tendon reflex paradigm was used to study the contributions of crossed spinal and supraspinal inputs to the output of the alpha motoneuron pool in children with and without developmental coordination disorders. The basic patellar tendon reflex response was exaggerated in children with developmental coordination disorders. Crossed spinal and supraspinal influences on the ex...