High-frequency whole-body vibration activates tonic vibration reflex

Kalaoglu, Eser; Bucak, Ömer Faruk; Kokce, Mustafa; Ozkan, Mehmet; Çetin, Mert; Atasoy, Mücahit; Aytüre, Lütfiye; Karacan, İlhan

doi:10.5606/tftrd.2023.10854

Cited by 4 publications

(9 citation statements)

References 22 publications

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“…If the latency of the WBV-induced reflex in the semi-squat position was at least 1 MSD shorter than that of the BMR, the short-latency reflex (i.e., TVR) was considered activated. BMR latency is longer than the muscle spindle-based reflex (i.e., TVR, T-reflex) latency 9 , 16 , 17 , 18 , 19 ) . If the difference between the latencies of the WBV-induced reflex and BMR was within ± 1 MSD in the semi-squat position, it was accepted that the latency did not change and that BMR was activated in the semi-squat position.…”

Section: Participants and Methodsmentioning

confidence: 90%

“…Two spinal reflex mechanisms have been proposed to explain the neuromuscular effects of WBV 4 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ) . The primary findings of the present study were that simultaneous WBV application and voluntary contraction activated TVR, whereas WBV application alone activated BMR in all participants.…”

Section: Discussionmentioning

confidence: 99%

“…Compared to the healthy group, the soleal TVR latency was longer in patients with spinal cord injuries; however, the WBV-IMR latency was the same between the two groups 18 ) . WBV also activates either TVR or WBV-IMR depending on the vibration amplitude 16 , 17 ) .…”

Section: Introductionmentioning

confidence: 99%

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Whole body vibration activates the tonic vibration reflex during voluntary contraction

Kalaoglu¹,

Bucak

Kokce

et al. 2023

J Phys Ther Sci

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[Purpose] The beneficial neuromuscular effects of whole-body vibration are explained by the tonic vibration or bone myoregulation reflex. Depending on factors that remain undefined, whole-body vibration may activate the tonic vibration or bone myoregulation reflex. We aimed to examine whether voluntary contraction facilitates activation of the tonic vibration reflex during whole-body vibration. [Participants and Methods] Eleven volunteers were included in this study. Local and whole-body vibrations were applied in a quiet standing (without voluntary contraction) and a semi-squatting (isometric soleus contraction) position. Local vibration was applied to the Achilles tendon. Surface electromyography was obtained from the soleus muscle. The cumulative average method was used to determine soleus reflex latency. [Results] In the quiet standing position, the bone myoregulation reflex latency was 39.9 ± 4.1 milliseconds and the tonic vibration reflex latency was 35.4 ± 3.6 milliseconds. Whole-body vibration application in the semi-squatting position activated the tonic vibration reflex in four participants and the bone myoregulation reflex in seven participants. Local vibration activated the tonic vibration reflex in both positions for all participants. [Conclusion] Simultaneous whole-body vibration application and voluntary contraction may activate the tonic vibration reflex. Determining the spinal mechanisms underlying the whole-body vibration exercises will enable their effective and efficient use in rehabilitation and sports.

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Section: Participants and Methodsmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

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Whole body vibration activates the tonic vibration reflex during voluntary contraction

Kalaoglu¹,

Bucak

Kokce

et al. 2023

J Phys Ther Sci

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“…The segmental level of integration of proprioceptive afferentation during WBV includes the tonic vibration reflex ( 16 , 17 ), mono- and polysynaptic tendon reflexes ( 6 , 18 ). At the electromyography level, this is manifested by an increase in electrical activity of muscles ( 19 , 73 ) due to the recruitment of motor units ( 16 ).…”

Section: Discussionmentioning

confidence: 99%

“…The WBV activation of the proprioceptive system begins at the level of muscle spindles and integrates in sensorimotor cortex ( 15 ), and has been previously shown integrates at different levels of the central nervous system (CNS), regulating executive brain functions according to levels of proprioceptive stimulation. The integrative properties of the proprioceptive system at the CNS segmental level are manifested by the tonic vibration reflex ( 16 , 17 ) and tendon reflexes ( 6 , 18 ) with recruitment of the maximum number of motor units of skeletal muscles ( 16 , 19 ). At the stem level, proprioceptive interneurons integrate vegetative functions (blood circulation, respiration) ( 20 – 22 ), nociception ( 9 ) and balance ( 23 ) during WBV.…”

Section: Introductionmentioning

confidence: 99%

Integrative function of proprioceptive system in the acute effects of whole body vibration on the movement performance in young adults

Maslova,

Shusharina,

Videnin

et al. 2024

Front. Sports Act. Living

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BackgroundThe proprioceptive system coordinates locomotion, but its role in short-term integration and recovery of motor activity in imbalance of motor patterns and body remains debated. The aim of this study is investigating the functional role of proprioceptive system in motor patterns and body balance in healthy young adults.Methods70 participants (aged 20.1 ± 0.3) were divided into experimental groups EG1 (n = 30), EG2 (n = 30), control group (CG, n = 10). EG1 performed single WBV session on Power Plate (7 exercises adapted to Functional Movement Screen (FMS). EG2 performed single session of FMS Exercises (FMSE). CG didn't perform any physical activity. All participants performed pre- and post-session of FMS and stabilometric measurements.ResultsFMS total score in EG1 increased by 2.0 ± 0.2 (p0 < 0.001), this was significantly differed (p0 < 0.001) from EG2 and CG. Acute effects of WBV and FMSE on rate of change and standard deviation (SD) of pressure center (COP) were shown in all groups during Static Test (p0 < 0.01). SD increased (p0 < 0.01) in Given Setting Test in EG1 and EG2, and in Romberg Test (p0 < 0.001) in EG1. Length, width and area (p0 < 0.01) of confidence ellipse, containing 95% of the statokinesiogram points, decreased in Static Test in EG1; width and area (p0 < 0.01) decreased in EG2 group. Significant (p0 < 0.01) decrease in Given Setting Test was in EG1, and significant (p0 < 0.01) increase was in Romberg Test (open eyes) in CG. Maximum amplitude of COP oscillations: significantly (p0 < 0.01) decreasing along X and Y axes in EG1 and EG2, and along Y axis in CG during Static Test; along Y axis (p0 < 0.01) in all groups during Given Setting Test. Significant differences were identified (p0 < 0.01) in calculated energy consumption for COP moving during all stabilometric tests. However, inter-group differences in COP after acute WBV and FMSE sessions have not been identified.ConclusionsAcute WBV session eliminates the deficits in motor patterns which is not the case after acute FMSE session, which, according to our integrative movement tuning hypothesis, is due to high activation of integrative function of proprioceptive system. Efficacy of WBV and FMSE on COP performance indicates a high sensitivity of postural control to different levels of proprioceptive system activity.

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Exploring neuronal mechanisms of osteosarcopenia in older adults

Karacan,

Türker

2024

The Journal of Physiology

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Until recently, research on the pathogenesis and treatment of osteoporosis and sarcopenia has primarily focused on local and systemic humoral mechanisms, often overlooking neuronal mechanisms. However, there is a growing body of literature on the neuronal regulation of bone and skeletal muscle structure and function, which may provide insights into the pathogenesis of osteosarcopenia. This review aims to integrate these neuronal regulatory mechanisms to form a comprehensive understanding and inspire future research that could uncover novel strategies for preventing and treating osteosarcopenia. Specifically, the review explores the functional adaptation of weight‐bearing bone to mechanical loading throughout evolutionary development, from Wolff's law and Frost's mechanostat theory to the mosaic hypothesis, which emphasizes neuronal regulation. The recently introduced bone osteoregulation reflex points to the importance of the osteocytic mechanoreceptive network as a receptor in this neuronal regulation mechanism. Finally, the review focuses on the bone myoregulation reflex, which is known as a mechanism by which bone loading regulates muscle functions neuronally. Considering the ageing‐related regressive changes in the nerve fibres that provide both structural and functional regulation in bone and skeletal muscle tissue and the bone and muscle tissues they innervate, it is suggested that neuronal mechanisms might play a central role in explaining osteosarcopenia in older adults. image

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High-frequency whole-body vibration activates tonic vibration reflex

Cited by 4 publications

References 22 publications

Whole body vibration activates the tonic vibration reflex during voluntary contraction

Whole body vibration activates the tonic vibration reflex during voluntary contraction

Integrative function of proprioceptive system in the acute effects of whole body vibration on the movement performance in young adults

Exploring neuronal mechanisms of osteosarcopenia in older adults

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