Does the motor unit synchronization induced by vibration enhance maximal voluntary isometric contraction force? A randomized controlled double-blind trial.

Objectives: Motor unit synchronization has been proposed as a potential mechanism underlying muscle strength gains for vibration training, but it has yet to be definitely demonstrated. Aim of this study was to determine whether motor unit synchronization induced by vibration has an effect on isometric muscle strength.

Methods: Thirty-six healthy volunteers were randomized into two groups: the vibration and the control (sham vibration) groups.

Prevalence and risk factors for vitamin D deficiency in patients with widespread musculoskeletal pain.

Background/aim: The aim of this study was to examine the prevalence of 25-hydroxyvitamin D (25(OH) vitamin D) deficiency in patients complaining of widespread musculoskeletal pain.

Materials And Methods: In this cross-sectional study, 14,925 patients (13,589 females and 1336 males; mean age: 47.0 years, range: 20-99 years) were included.

Whole-body vibration induces distinct reflex patterns in human soleus muscle.

The neuronal mechanisms underlying whole body vibration (WBV)-induced muscular reflex (WBV-IMR) are not well understood. To define a possible pathway for WBV-IMR, this study investigated the effects of WBV amplitude on WBV-IMR latency by surface electromyography analysis of the soleus muscle in human adult volunteers. The tendon (T) reflex was also induced to evaluate the level of presynaptic Ia inhibition during WBV.

Vibration parameters affecting vibration-induced reflex muscle activity.

Purpose: To determine vibration parameters affecting the amplitude of the reflex activity of soleus muscle during low-amplitude whole-body vibration (WBV).

Materials And Methods: This study was conducted on 19 participants. Vibration frequencies of 25, 30, 35, 40, 45, and 50 Hz were used.

Tendon reflex is suppressed during whole-body vibration.

In this study we have investigated the effect of whole body vibration (WBV) on the tendon reflex (T-reflex) amplitude. Fifteen young adult healthy volunteer males were included in this study. Records of surface EMG of the right soleus muscle and accelerometer taped onto the right Achilles tendon were obtained while participant stood upright with the knees in extension, on the vibration platform.