Acute physiological effects of exhaustive whole‐body vibration exercise in man

Abstract

Vibration exercise (VE) is a new neuromuscular training method which is applied in athletes as well as in prevention and therapy of osteoporosis. The present study explored the physiological mechanisms of fatigue by VE in 37 young healthy subjects. Exercise and cardiovascular data were compared to progressive bicycle ergometry until exhaustion. VE was performed in two sessions, with a 26 Hz vibration on a ground plate, in combination with squatting plus additional load (40% of body weight). After VE, subjectively perceived exertion on Borg's scale was 18, and thus as high as after bicycle ergometry. Heart rate after VE increased to 128 min-1, blood pressure to 132/52 mmHg, and lactate to 3.5 mM. Oxygen uptake in VE was 48.8% of VO2max in bicycle ergometry. After VE, voluntary force in knee extension was reduced by 9.2%, jump height by 9.1%, and the decrease of EMG median frequency during maximal voluntary contraction was attenuated. The reproducibility in the two VE sessions was quite good: for heart rate, oxygen uptake and reduction in jump height, correlation coefficients of values from session 1 and from session 2 were between 0.67 and 0.7. Thus, VE can be well controlled in terms of these parameters. Surprisingly, an itching erythema was found in about half of the individuals, and an increase in cutaneous blood flow. It follows that exhaustive whole-body VE elicits a mild cardiovascular exertion, and that neural as well as muscular mechanisms of fatigue may play a role.

Strength-Training with Whole-Body Vibration in Long-Distance Runners: A Randomized Trial

“…Therefore, the stimulus would be insufficient to promote adaptations in the maximal aerobic power of trained athletes. Concerning ST WBV , it was plausible to suspect improvements in the O 2 max and RCP since that whole-body vibrations training sessions require additional oxygen uptake when compared with traditional strength training [23]. However, the results of the present study show that the additional stimulus provided by the whole-body vibration platform was not sufficient to improve these physiological parameters in trained long-distance runners.…”

“…The 1RM familiarization test was conducted at the end of the first and second visits with 20 min of passive recovery between the tests. All of the tests were performed at the same time of day at a constant room temperature (20)(21)(22)(23)(24) o C) at least 2 h after the most recent meal.…”

Determining the Optimal Whole-Body Vibration Dose–response Relationship for Muscle Performance

“…With regard to the amplitude or peak-to-peak displacement, authors such as Cardinale and Bosco (12) [30][31][32][33][34][35] Hz, the best results in countermovement jump (CMJ) are obtained with amplitudes of 2-4 mm, whereas, with frequencies in the 40-to 50-Hz range, the greatest improvements are achieved with amplitudes of 4-6 mm.…”

A interferência da posição corporal na transmissibilidade vibratória durante o treinamento com plataforma vibratória

“…Each body structure vibrates at a specific frequency, called natural frequency. When an external vibration is applied at a frequency that coincides with the natural frequency of a given structure, the internal forces acting on the organism are enhanced, an event that can lead to different degrees of damage to the body 11 , causing symptoms such as headache, nausea, dizziness 12 , erythema and itching of the skin, prolonged numbness of the lower limbs 13 , and visual disturbances 14 . The incidence of this phenomenon, as well as the neural and morphological changes expected from WBV training, depends on factors such as the frequency and amplitude of vibration and time of exposure 15 , in addition to the position on the vibrating platform 16,17 .…”