Effect of Gravitational Unloading on Rat’s Gastrocnemius Muscle Spinal Motor Center

The electromyographic methods were performed to estimate the rat’s gastrocnemius muscle spinal motor center functional state under conditions of gravity unloading. The research was performed in the following experimental series: (1) after 35 days of microgravity influence; (2) after 35 days of micro...

Full description

Saved in:
Bibliographic Details
Published inBioNanoScience Vol. 6; no. 4; pp. 368 - 369
Main Authors Eremeev, Anton, Baltina, Tatyana, Fedyanin, Artur, Eremeev, Alexandr, Lavrov, Igor
Format Journal Article
LanguageEnglish
Published New York Springer US 01.12.2016
Springer Nature B.V
Subjects
Biological and Medical Physics
Biomaterials
Biophysics
Circuits and Systems
Electromyography
Engineering
Evoked potentials
Excitability
Gastrocnemius muscle
Gravitational effects
Microgravity
Motor task performance
Nanotechnology
Sciatic nerve
Stimulation
Unloading
Electromyography
Motor center
Gravitational unloading
Support afferentation
Online AccessGet full text

Cover

More Information
Summary:The electromyographic methods were performed to estimate the rat’s gastrocnemius muscle spinal motor center functional state under conditions of gravity unloading. The research was performed in the following experimental series: (1) after 35 days of microgravity influence; (2) after 35 days of microgravity influence in combination with support receptor excitation. The series of experiments showed that parameters of recorded evoked potentials in gastrocnemius muscle (GM) induced by sciatic nerve stimulation while gravity unloading (group 1), significantly differed from those registered in intact animals and not differed in group 2. It has been demonstrated that the reflex excitability of rat’s gastrocnemius muscle spinal motor center increases under conditions of gravity unloading. Support afferentation limitation plays the key role in motor centers state change.
ISSN:2191-1630
2191-1649
DOI:10.1007/s12668-016-0231-z