Effect of continued stretching of the affected arm in patients with cerebrovascular diseases by examining H-reflex characteristics.
To investigate excitability of spinal neural function during stretching excises in patients with cerebrovascular disease (CVD), H-reflex was analyzed before, during and after 1 min. continued stretching of the affected arm. 10 hemiparesis patients with hypertonus and hyperreflex, mean age of 53.2 years were tested. H-reflex was recorded from the abductor pollicis brevis on the affected side after stimulation of median nerve in supine position. The persistence, amplitude and amplitude ratio of H/M during stretching were lower than those before and after in the patients with moderately increased muscle tonus. In patients with slightly and markedly increased, H-reflex was same before, during and after continued stretching. It is suggested that excitability of spinal neural function during 1 min. continued stretching was inhibited in the patients with moderately increased muscle tonus caused by CVD.
Suzuki
T
T
Research Center of Neurological Diseases, Kansai College of Oriental Medicine. suzuki@kansai.ac.jp
Saitoh
E
E
Tani
M
M
Nabeta
R
R
Daikuya
S
S
Hirose
H
H
Wakayama
I
I
Fujiwara
T
T
D000328:Adult; D001132:Arm / Q000503:physiopathology*; D002561:Cerebrovascular Disorders / Q000150:complications / Q000503:physiopathology*; D004576:Electromyography; D005260:Female; D006181:H-Reflex / Q000502:physiology*; D006801:Humans; D008297:Male; D008475:Median Nerve / Q000503:physiopathology; D008875:Middle Aged; D009122:Muscle Hypertonia / Q000209:etiology / Q000503:physiopathology*; D018482:Muscle, Skeletal / Q000503:physiopathology*; D010291:Paresis / Q000209:etiology / Q000503:physiopathology*; D012021:Reflex, Abnormal / Q000502:physiology*; D012026:Reflex, Stretch / Q000502:physiology*; D013127:Spinal Nerves / Q000503:physiopathology; D016683:Supine Position / Q000502:physiology; D013997:Time Factors