Effects of applied vibration on triphasic electromyographic patterns in neurologically ballistic head movements

@article{Hannaford1985EffectsOA,
  title={Effects of applied vibration on triphasic electromyographic patterns in neurologically ballistic head movements},
  author={Blake Hannaford and Guy Cheron and Lawrence W. Stark},
  journal={Experimental Neurology},
  year={1985},
  volume={88},
  pages={447-460}
}
Vibration of agonist or antagonist muscle tendon produced changes in the triphasic electromyographic pattern of neck muscles; EMG signals were rectified, averaged, and also integrated by planimetry. The triphasic EMG envelopes obtained during fast horizontal head rotation showed unmodified early agonist pulse, the action pulse (PA), under all conditions; increased antagonist pulse, the braking pulse (PB), only with antagonist muscle vibration; and increase of late agonist pulse, the clamping… Expand
Effects on EMG activities of elbow joint muscles by rapid head rotation movement in horizontal plane in man
TLDR
Effects of voluntary rapid head rotation movement in horizontal plane on EMG activities of tonically contracting elbow extensor and flexor muscles were studied and are interpreted as resulted from an incorporated part of the central motor program for head rotation which was specific to each subject. Expand
Motor Control Simulation Of Time Optimal Fast Movement in Man
In the fastest human movements, three pulses of activation can be recorded from the agonist and antagonist muscles in the form of bursts of the electromyogram, (EMG). Our detailed simulation of theExpand
Fast voluntary trunk flexion movements in standing: motor patterns.
TLDR
The electromyographical activity was studied during voluntary flexion movements of the trunk in erect standing man and it can be concluded that activation of postural muscles prior to prime mover muscles is not always necessary. Expand
Neck muscles in the rhesus monkey. II. Electromyographic patterns of activation underlying postures and movements.
TLDR
The results emphasize that the recruitment of a given muscle was generally ordered and consistent but that strategies for coordination among various neck muscles were often complex and appeared to depend on the specifics of musculoskeletal architecture, posture, and movement kinematics that differ substantially among species. Expand
Simulation studies of descending and reflex control of fast movements.
TLDR
Several neurological control strategies for fast head movements are considered using computer simulations of a stretch reflex model that includes the agonist and antagonist EMGs, and the head position, velocity, and acceleration. Expand
Natural goal-directed movements and the triphasic EMG.
TLDR
This experiment examined the effects of Response Type (experimenter- vs. subject-determined), Hand (preferred vs. nonpreferred), and Practice (early vs. late) on performance accuracy, and specific temporal EMG and kinematic measures during a dart throw. Expand
Long-lasting effects of neck muscle vibration and contraction on self-motion perception of vestibular origin
TLDR
It is shown that the perception of whole-body yaw-rotation is not only dependent on accurate vestibular information, but is modulated by proprioceptive information related to previously experienced position of head with respect to trunk. Expand
Recognition of the physiological actions of the triphasic EMG pattern by a dynamic recurrent neural network
TLDR
It is demonstrated that the DRNN is able to perfectly reproduce the acceleration profile of the ballistic movements, and this task-dynamics recognition has implications for the development of DRNN as diagnostic tools and prosthetic controllers. Expand
Goal-directed arm movements. II: A kinematic model and its relation to EMG records.
  • R. Happee
  • Mathematics, Medicine
  • Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology
  • 1993
TLDR
An analysis of the kinematic signals is presented and the relation between EMG and kinematics is assessed in a correlation analysis, indicating that the movement obtained is closely coupled to activity of the four prime movers of the upper arm and of three out of four scapular muscles. Expand
Short Time Fourier Analysis of the Electromyogram: Fast Movements and Constant Contraction
TLDR
There was a consistent shift in spectral statistics in the course of the three bursts of EMG, and the center frequency and the variance of the spectral energy distribution grew from the first burst to the second burst in the same muscle. Expand
...
1
2
3
...

References

SHOWING 1-10 OF 32 REFERENCES
Spinal and supraspinal factors in voluntary movement.
TLDR
The results suggest that movement is initiated by direct corticospinal drive of the main motoneurons, while spinal reflexes become more important later in the move. Expand
Evidence for a monosynaptic mechanism in the tonic vibration reflex of the human masseter muscle.
TLDR
Vibration of the masseter and temporalis muscles in normal human adult subjects elicits a tonic vibration reflex with unexpected features which is compatible with a monosynaptic reflex mechanism which is considered to be assisted by a polysynaptic facilitatory background of proprioceptive origin. Expand
Electromyographic evidence of neurological controller signals with viscous load.
TLDR
Carefully controlled, intended time-optimal movements by trained, actively participating human subjects have been found to yield repeatable, multi-pulse controller signals from stereotyped head movements, a base from which modeling studies can be performed to explicate the neurological control strategies used in the performance of this class of movements. Expand
The responses of human muscle spindle endings to vibration during isometric contraction.
TLDR
The results suggest that the tonic vibration reflex, like the tendon jerk reflex, operates predominantly or exclusively on alpha motoneurones and that it does not utilize the same cortically originating efferent pathways as are used in the performance of voluntary contractions. Expand
Position sense and state of contraction; the effects of vibration
TLDR
The position sense of the knee joint was investigated in normal subjects lying in the supine position with both legs hanging freely and found that the position produced by voluntary contraction was correctly perceived, that of the TVR was underestimated, and that of passive lifting was overestimated. Expand
Muscle spindle activity in man during voluntary fast alternating movements.
TLDR
The recurrent extrafusal contractions in movements of this type are initiated by the fast direct alpha route, but individual contraction phases generally last long enough to be influenced subsequently by the coactivated fusimotor loop through the spindles. Expand
Vibration‐induced discharge patterns of single motor units in the masseter muscle in man.
TLDR
In all the experimental conditions tested, and even when the unit discharge did not start until several seconds after vibration onset, the unit potential presented a close and highly consistent temporal relation to the vibration cycles, which may result from the lack of reciprocal inhibition from the jaw‐opening muscles. Expand
Ballistic flexion movements of the human thumb.
TLDR
It is concluded that the individual components of a ballistic movement are relatively fixed in duration and the amount of e.m. activity is altered within this time interval to produce the different forces required for fast movements of different amplitude. Expand
Action of vibration on the response of cat muscle spindle Ia afferents to low frequency sinusoidal stretching.
TLDR
The phase of the response to the sinusoidal stretching tended to be delayed during the vibration in comparison with the normal, and was largely dependent upon the afferents continuing to respond maximally to the vibration around the peak of thesinusoidal stretch. Expand
Mechanism of the vibration paradox: excitatory and inhibitory effects of tendon vibration on single soleus muscle motor units in man
1. The parameters of presynaptic inhibition of the Ia spindle afferents from soleus muscle by vibration have been investigated. The inhibitory effects increase with the amplitude of vibration, butExpand
...
1
2
3
4
...