Interlimb reflexes evoked in human arm muscles by ankle displacement

Electroencephalography and Clinical Neurophysiology
R E Kearney, C W Chan

Abstract

Interlimb reflexes evoked by ankle displacements were studied in arm muscles of 6 normal subjects. EMGs from grastrocnemius (G), tibialis anterior (TA), biceps brachii (BB), and triceps brachii (TB) were amplified, rectified and low-pass filtered before recording. Averaging and Wiener filtering were used to detect changes in tonic EMG activity evoked by dorsiflexing or plantarflexing displacements of the ankle. A consistent pattern of response was observed in all subjects. In the leg muscles, the responses to stretch were consistent with previous reports. In the arm muscles, the response of TB was dominant. Dorsiflexing displacements of the ankle evoked a small excitation followed by a more marked decrease in TB activity but had no effect on BB. In contrast, plantarflexing displacements of the ankle resulted in a large, early period of excitation followed by a decreased level of activity in TB. A similar but smaller pattern of activity was observed in BB. It is notable that the TB responses to displacement were sizable, often modulating the tonic EMG activity by as much as 80%. Interlimb reflexes evoked by ankle displacement were larger and of shorter latency than those evoked by cutaneous electrical stimulation of the foot rep...Continue Reading

References

Jul 1, 1976·Electroencephalography and Clinical Neurophysiology·S Rossignol, G M Jones
Apr 1, 1979·Electroencephalography and Clinical Neurophysiology·R E Kearney
Feb 1, 1979·Electroencephalography and Clinical Neurophysiology·C W ChanD G Watt
Jul 6, 1979·Brain Research·R E Kearney, C W Chan
Sep 1, 1969·Electroencephalography and Clinical Neurophysiology·K A Kooi, A G Clague

❮ Previous
Next ❯

Citations

Sep 2, 2000·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·M A GuadagnoliM L Rodrigue
Jun 1, 1984·Journal of Neurology, Neurosurgery, and Psychiatry·W G FriedliS R Simon
Apr 14, 2016·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Volker Dietz, Miriam Schrafl-Altermatt
Dec 14, 2004·Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology·Blair CalancieMaria R Molano
Apr 21, 2006·The European Journal of Neuroscience·Claudio MaioliAntonio Losio
Jul 24, 2004·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·E Paul Zehr, Jacques Duysens
Oct 27, 2006·Human Factors·Christopher HeimEckhard Niebergall
Feb 17, 2009·The Neuroscientist : a Review Journal Bringing Neurobiology, Neurology and Psychiatry·Daniel S Marigold, John E Misiaszek
Apr 19, 2002·Brain : a Journal of Neurology·Blair CalancieJames G Broton
Mar 17, 2017·Journal of Neurophysiology·Alain Frigon

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.