tonic vibration reflex


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tonic vibration reflex

Abbreviation: TVR
A polysynaptic reflex believed to depend on spinal and supraspinal pathways.
See also: reflex
References in periodicals archive ?
In addition, another possible explanation for the superiority of the loaded WBV (50 Hz and 4 mm) maybe related to increased tonic vibration reflex (TVR) conditions that led to better muscle capabilities; dampening external perturbations and reducing resonance effects.
One of the proposed mechanisms of improvement in performance is an increase in muscle activation via neurogenic potentiation based on the tonic vibration reflex (Rittweger et al., 2003).
The most frequently cited mechanism by which WBV increases muscle activity is the tonic vibration reflex (TVR) (Cardinale and Bosco, 2003; Torvinen et al., 2002).
Thus, WBV exercise acutely enhances the pattern of the neuromuscular system due to the physiological mechanism called "tonic vibration reflex" (TVR), where muscle spindle reflexes facilitate the activation of Iamotoneurons, leading to muscle contractions (Hagbarth and Eklund, 1966; Lance et al., 1973).
Through the rapid eccentric-concentric muscle action caused by the vertical sinusoidal oscillations, this transient effect to enhance muscle performance is thought to be mediated by a rapid reflex and stretch-reflexes (Ritzmann et al., 2010), which is likely to involve the tonic vibration reflex (Pollock et al., 2012).
This is based on the earlier work by Eklund and Hagbarth (1966); vibration evokes muscle contractions via tonic vibration reflex (TVR) produced by tendon vibration.