Motoneurone pool and the H-reflex.
نویسندگان
چکیده
منابع مشابه
Recruitment order of motor units in man: significance of pre-existing state of facilitation.
It has been shown in previous investigations that the recruitment order of motor units is different in tonic and in phasic voluntary activity. The significance of the pre-existing state of facilitation in the motoneurone pool for the recruitment of units is studied, using the phasic flexion reflex in the anterior tibial muscle as test reflex. It is shown that the recruitment order of units in a...
متن کاملبررسی میزان خونریزی غیرطبیعی، قاعدگی سنگین، دیسمنوره و خروج خودبخود IUD جایگذاری شده در اواخر دوره پست پارتوم و مقایسه آن با IUD اینتروال (غیر این زمان)
The aim of this investigation is to compare the effect of applying two transcutaneous electrical nerve stimulation (TENS) current with different frequencies (2 Hz & 100 Hz) on Hoffmann reflex recorded from gastrosoleus muscle of healthy people. Forty female subjects between 20 to 30 years of age were participated in this quasi-experimental design. Twenty of them were exposed to the 100 Hz curre...
متن کاملبررسی و مقایسه دو فرکانس مختلف TENS بر تحریک پذیری رفلکس هافمن
The aim of this investigation is to compare the effect of applying two transcutaneous electrical nerve stimulation (TENS) current with different frequencies (2 Hz & 100 Hz) on Hoffmann reflex recorded from gastrosoleus muscle of healthy people. Forty female subjects between 20 to 30 years of age were participated in this quasi-experimental design. Twenty of them were exposed to the 100 Hz curre...
متن کاملDifferences in recruitment order of motor units in phasic and tonic flexion reflex in "spinal man".
The recruitment order of motoneurones in muscle contractions has been held to be largely constant and determined by the size of the cell. However, as shown in a previous investigation using electromyographic techniques, the order in which different motor units are activated during voluntary muscle contractions changes in normal human subjects on shifts from phasic to tonic contraction. In order...
متن کاملSegmental reflex pathways in spinal shock and spinal spasticity in man.
Activity in three segmental pathways was compared in normal subjects, patients with spinal shock, and patients with established spinal spasticity. The Achilles tendon reflex (ATR) was used to estimate transmission in the Ia monosynaptic pathway. Evidence is produced implying that vibration activates motoneurones principally through a polysynaptic pathway. The tonic vibration reflex (TVR) was us...
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ورودعنوان ژورنال:
- Journal of neurology, neurosurgery, and psychiatry
دوره 31 4 شماره
صفحات -
تاریخ انتشار 1968