TITLE

Changes in the H Reflex Preceding Voluntary Movements of the Contralateral Lower Limb in Humans

AUTHOR(S)
Ivanchenko, E.; Slivko, É.
PUB. DATE
September 2011
SOURCE
Neurophysiology;Sep2011, Vol. 43 Issue 2, p124
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
In electromyographic studies on healthy subjects, we recorded the H reflex from the right m. soleus and measured changes in the magnitude of this reflex response related to voluntary movements of the contralateral lower limb performed according to a visual signal. The effects of back and plantar flexions of the contralateral foot of the tested subject in the lying and standing positions were examined. Changes in the H reflex magnitude began to be recorded 60 to 90 msec prior to voluntary movements of the contralateral limb. When the subject was in the lying position, these changes looked like facilitation of the H reflex at both types of movement of the contralateral foot. When the subject stood, facilitation preceded back flexion of the foot of this extremity, while plantar flexion was preceded by inhibition of the tested H reflex. Our results show that the pattern of preliminary changes in the muscle tone of one of the lower limbs is determined by the type of future movement of another limb and peculiarities of the support function realized by this limb.
ACCESSION #
66643856

 

Related Articles

  • Analysis of lower extremity muscle activation using. Vidhya, L.; Saranya, S.; Poonguzhali, S. // Applied Mechanics & Materials;2014, Issue 573, p797 

    Electromyography (EMG) has been widely used as a tool to understand and distinguish between normal and pathological gait. This study aims at understanding the activation patterns of lower limb muscles viz. Gastrocnemius and Tibialis Anterior in the dominant leg of subjects with normal (n=5) as...

  • Age-Related Changes in Postural Responses to Backward Platform Translation. Halická, Z.; Lobotková, J.; Bzdúšková, D.; Hlavačka, F. // Personal Real Estate Investor;Jun2012, p331 

    The aim of the study was to investigate age-related changes in postural responses to platform translation with 3 various velocities. We focused on the influence of linear velocity using the smoothed profile of platform acceleration (till 100 cm.s-2). Eleven healthy young (20-31 years) and eleven...

  • THE ANTICIPATORY AND COMPENSATORY ADJUSTMENTS DURING TRUNK EXTENSION IN CHILDREN. Bigongiari, A.; Cotta, R. F.; Coelho, T.; Souza, A.; Adão, S. C.; Lima, A. P. A.; Prado, C. D.; Araujo, R. C.; Mochizuki, L. // Revista Brasileira de Biomecânica;2013, Vol. 14 Issue 27, p76 

    Postural control in children involves anticipatory and compensatory postural adjustments. OBJECTIVE: The aim of the study was to further investigate these two components of postural control in typically developing children (N=12, main age 9.4±1.3 years old, main weight 31.7±5.5 kg and mean...

  • Effects of Voluntary Agonist-Antagonist Coactivation on Stability of Vertical Posture. Yamagata, Momoko; Falaki, Ali; Latash, Mark L. // Motor Control;Jul2019, Vol. 23 Issue 3, p304 

    We explored the effects of voluntary coactivation of agonist-antagonist leg and trunk muscles on stability of vertical posture. Young healthy subjects performed several tasks while standing with no additional muscle coactivation, low coactivation, and high coactivation. Postural stability was...

  • Influência de diferentes calçados na postura e na atividade dos músculos do tronco. de Oliveira Morais, Priscilla Alencar; Dantas, Milla Gabriela Belarmino; Pinotti, Marcos; Pitangui, Ana Carolina Rodarti; de Araújo, Rodrigo Cappato // ConScientiae Saude;2012, Vol. 11 Issue 3, p462 

    Introduction: The use of high heels has been increasingly frequent in the daily life of women. Objective: To investigate the behavior of stabilizer lumbar mus­cles and the postural alterations caused by the use of different footwear during standing position. Methods: Twenty healthy women were...

  • Effect of the Push-up Plus (PUP) Exercise at Different Shoulder Rotation Angles on Shoulder Muscle Activities. SUNG-HAK CHO; IL-HUN BAEK; JU YOUNG CHEON; MIN JUNG CHO; MI YOUNG CHOI; DA HYE JUNG // Journal of Physical Therapy Science;2014, Vol. 26 Issue 11, p1737 

    [Purpose] Although the Push-Up Plus is a useful exercise method for shoulder stabilization, few studies have examined its effects at different angles of shoulder rotation. Therefore, the present study investigated the most effective exercise method for shoulder stabilization by analyzing muscle...

  • EMG I GRF ANALIZA PRI IZVOÐENJU KORAK DOKORAKA NA RAZLIÄŒITIM VISINAMA STEP KLUPICE. Horvatin-Fučkar, Maja; Vlašić, Jadranka; Trkulja-Petković, Drena // Croatian Sports Medicine Journal / Hrvatski sportskomediciniski ;2013, Vol. 28 Issue 1, p39 

    The main goal of this research was to establish some predictive biomechanical performance indicators: electromyographic activities (EMG) of leg muscles and kinetics parameters of ground reaction force (GRF) during dynamical movements stepping on and off at different heights of step bench...

  • A Real-Time Fatigue Monitoring and Analysis System for Lower Extremity Muscles with Cycling Movement. Szi-Wen Chen; Jiunn-Woei Liaw; Hsiao-Lung Chan; Ya-Ju Chang; Chia-Hao Ku // Sensors (14248220);Jul2014, Vol. 14 Issue 7, p12410 

    A real-time muscle fatigue monitoring system was developed to quantitatively detect the muscle fatigue of subjects during cycling movement, where a fatigue progression measure (FPM) was built-in. During the cycling movement, the electromyogram (EMG) signals of the vastus lateralis and...

  • A 35-day bed rest does not alter the bilateral deficit of the lower limbs during explosive efforts. Rejc, Enrico; Prampero, Pietro; Lazzer, Stefano; Grassi, Bruno; Simunic, Bostjan; Pisot, Rado; Antonutto, Guglielmo; Narici, Marco // European Journal of Applied Physiology;Jun2015, Vol. 115 Issue 6, p1323 

    Purpose: Bilateral deficit (BLD) occurs when the force (or power) generated by both limbs together is smaller than the sum of the forces (or powers) developed separately by the two limbs. The amount of BLD can be altered by neural adaptations brought about by the repetitive execution of specific...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics