Sex differences in soleus muscle H‐reflex and V‐wave excitability

2020 ◽  
Vol 105 (11) ◽  
pp. 1928-1938 ◽  
Author(s):  
Goncalo V. Mendonca ◽  
Pedro Pezarat‐Correia ◽  
André D. Gonçalves ◽  
Miguel Gomes ◽  
Joana M. Correia ◽  
...  
Keyword(s):  
Sex Differences ◽  
Soleus Muscle ◽  
H Reflex ◽  
V Wave

Effects of 4 weeks of low-load unilateral resistance training, with and without blood flow restriction, on strength, thickness, V wave, and H reflex of the soleus muscle in men

2017 ◽  
Vol 117 (7) ◽  
pp. 1339-1347 ◽  
Author(s):  
David Colomer-Poveda ◽  
Salvador Romero-Arenas ◽  
Antonio Vera-Ibáñez ◽  
Manuel Viñuela-García ◽  
Gonzalo Márquez
Keyword(s):  
Blood Flow ◽  
Resistance Training ◽  
Soleus Muscle ◽  
H Reflex ◽  
Blood Flow Restriction ◽  
Flow Restriction ◽  
Low Load ◽  
V Wave

scholarly journals H Reflex of Soleus Muscle during Voluntary Dorsiflexion of Ankle.

1994 ◽  
Vol 9 (1) ◽  
pp. 27-32
Author(s):  
YOICHIRO OGATA ◽  
SHOHEI OGI ◽  
KATSUHIRO OZAKI ◽  
RIE NAKAO ◽  
SHIGEKI YOKOYAMA ◽  
...  
Keyword(s):  
Soleus Muscle ◽  
H Reflex

scholarly journals Fatigue-incduced modulation of human soleus Hoffmann reflex under conditions of homosynaptic postactivation depression due to pair tibial nerve stimulation

2017 ◽  
Vol 74 (2) ◽  
pp. 55-59
Author(s):  
O. Kolosova
Keyword(s):  
Soleus Muscle ◽  
Tibial Nerve ◽  
Voluntary Contraction ◽  
H Reflex ◽  
Afferent Nerves ◽  
Tibial Nerve Stimulation ◽  
Static Contraction ◽  
Conditioned Responses ◽  
Postactivation Depression ◽  
Stimulation Of

The purpose of our work was to investigate in detail the influence of pair stimulation of tibial nerve (n.tibialis) on human soleus H-reflex amplitude at rest and after long-lasting voluntary contraction of calf muscle (m.m. gastrocnemius-soleus), which caused the fatigue of soleus muscle. The method of H-reflex of soleus muscle was used. Test and conditioned responses (by pair stimulation of n. tibialis) were registered. Homosynaptic postactivation depression led to inhibition of H-reflex at rest. After fatiguing voluntary static contraction the amplitudes of test and conditioned soleus H-reflex were significantly reduced. Then both H-reflex amplitudes subsequently recovered. Soleus H-reflex inhibition might be due to the activation of the groups III and IV afferent nerves under the influence of mechanical and metabolic changes in the muscle.

Effects of acute sleep deprivation on H reflex and V wave

2020 ◽  
Author(s):  
André D. Gonçalves ◽  
Carolina Teodosio ◽  
Pedro Pezarat‐Correia ◽  
Carolina Vila‐Chã ◽  
Goncalo V. Mendonca
Keyword(s):  
Sleep Deprivation ◽  
H Reflex ◽  
Acute Sleep Deprivation ◽  
V Wave

P07.10 Soleus H-reflex is depressed during passive stretch of soleus muscle

2006 ◽  
Vol 117 ◽  
pp. 162-163 ◽  
Author(s):  
D. Kanter ◽  
Y. Zhu ◽  
M. McNulty ◽  
R. Weber
Keyword(s):  
Soleus Muscle ◽  
H Reflex ◽  
Passive Stretch

scholarly journals Sex differences in forkhead box O3a signaling response to hindlimb unloading in rat soleus muscle

2018 ◽  
Vol 69 (2) ◽  
pp. 235-244 ◽  
Author(s):  
Toshinori Yoshihara ◽  
Toshiharu Natsume ◽  
Takamasa Tsuzuki ◽  
Shuo-wen Chang ◽  
Ryo Kakigi ◽  
...  
Keyword(s):  
Sex Differences ◽  
Soleus Muscle ◽  
Hindlimb Unloading ◽  
Forkhead Box ◽  
Rat Soleus Muscle ◽  
Forkhead Box O3a

scholarly journals Short-term resistance training with instability reduces impairment in V wave and H reflex in individuals with Parkinson’s disease

2019 ◽  
Vol 127 (1) ◽  
pp. 89-97 ◽  
Author(s):  
Carla Silva-Batista ◽  
Jumes Leopoldino de Oliveira Lira ◽  
Fabian J. David ◽  
Daniel M. Corcos ◽  
Eugenia Casella Tavares Mattos ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Resistance Training ◽  
Wave Amplitude ◽  
H Reflex ◽  
Plantar Flexors ◽  
Short Term ◽  
M Wave ◽  
Reflex Responses ◽  
V Wave

This study had two objectives: 1) to compare the effects of 3 wk of resistance training (RT) and resistance training with instability (RTI) on evoked reflex responses at rest and during maximal voluntary isometric contraction (MVIC) of individuals with Parkinson’s disease (PD) and 2) to determine the effectiveness of RT and RTI in moving values of evoked reflex responses of individuals with PD toward values of age-matched healthy control subjects (HCs) ( z-score analysis). Ten individuals in the RT group and 10 in the RTI group performed resistance exercises twice a week for 3 wk, but only the RTI group included unstable devices. The HC group ( n = 10) were assessed at pretest only. Evoked reflex responses at rest (H reflex and M wave) and during MVIC [supramaximal M-wave amplitude (Msup) and supramaximal V-wave amplitude (Vsup)] of the plantar flexors were assessed before and after the experimental protocol. From pretraining to posttraining, only RTI increased ratio of maximal H-reflex amplitude to maximal M-wave amplitude at rest (Hmax/Mmax), Msup, Vsup/Msup, and peak torque of the plantar flexors ( P < 0.05). At posttraining, RTI was more effective than RT in increasing resting Hmax and Vsup and in moving these values to those observed in HCs ( P < 0.05). We conclude that short-term RTI is more effective than short-term RT in modulating H-reflex excitability and in increasing efferent neural drive, approaching average values of HCs. Thus short-term RTI may cause positive changes at the spinal and supraspinal levels in individuals with PD. NEW & NOTEWORTHY Maximal H-reflex amplitude (Hmax) at rest and efferent neural drive [i.e., supramaximal V-wave amplitude (Vsup)] to skeletal muscles during maximal contraction are impaired in individuals with Parkinson’s disease. Short-term resistance training with instability was more effective than short-term resistance training alone in increasing Hmax and Vsup of individuals with Parkinson’s disease, reaching the average values of healthy control subjects.

Phase-Dependent Inhibition of H-Reflexes During Walking in Humans Is Independent of Reduction in Knee Angular Velocity

1999 ◽  
Vol 82 (2) ◽  
pp. 747-753 ◽  
Author(s):  
M. Garrett ◽  
T. Kerr ◽  
B. Caulfield
Keyword(s):  
Angular Velocity ◽  
Knee Joint ◽  
Soleus Muscle ◽  
Normal Subjects ◽  
Afferent Input ◽  
H Reflex ◽  
Short Latency ◽  
Reflex Modulation ◽  
Reflex Responses ◽  
Knee Movement

The purpose of this investigation was to investigate whether reduction in impulses arising from stretch of the quadriceps by restricting rapid knee flexion in early swing would affect inhibition of the H-reflex during swing. The contribution of afferent input arising from knee angular velocity to phase-dependent modulation of short-latency responses in the soleus was studied by simultaneously measuring joint velocity and soleus H-reflex responses at midstance and midswing phases of treadmill walking in 15 normal subjects. Stimulus strength was varied so that both maximal M and H waves were identified in each subject at midswing and midstance with the knee unrestricted (UK) and with knee movement restricted (RK), using a full leg bivalved cast to immobilize the knee joint. All subjects exhibited short-latency reflex responses in the soleus muscle. The H/M ratio at midswing was significantly reduced compared with midstance under both UK and RK walking conditions ( P < 0.0001). When compared with UK walking, knee joint angular velocity during RK walking was significantly reduced at midswing ( P < 0.001) and midstance ( P < 0.005) compared with UK. There were, however, no significant differences in H/M ratios at midswing and midstance between UK and RK walking tests. Inhibition of the H-reflex in the soleus muscle during swing was not affected by significant reduction in knee angular velocity. These results indicate that the sensory input from changes in angular velocity at the knee does not lay the inhibitory foundation of phase-related reflex modulation in the ankle extensors during walking as suggested by Brooke and colleagues.

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