Chronic Effects of Different Frequencies of Local Vibrations

Couto, Bruno Pena; Silva, H R; Barbosa, Marcos Pinotti; Szmuchrowski, Leszek Antoni

doi:10.1055/s-0031-1286294

Cited by 20 publications

(44 citation statements)

References 12 publications

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“…The six-second contraction ensured that the maximum strength was reached and reliably measured (Couto et al, 2012). The highest force value was considered to be the volunteer's maximum force.…”

Section: Test Protocolmentioning

confidence: 99%

Effects of 12 weeks of dynamic strength training with local vibration

Drummond

Couto

Augusto

et al. 2014

European Journal of Sport Science

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The purpose of this study was to investigate the chronic effects of dynamic strength training (ST) with local vibration on the maximum strength of elbow flexor muscles. Twenty healthy male untrained volunteers were divided randomly into the following two groups: the conventional training group (CTG) or the vibration training group (VTG). Both groups performed ST for 12 weeks, three times a week. The ST protocol included four sets of 8-10 repetition maximums (RMs) of unilateral elbow flexion exercise. The VTG performed this training protocol with local vibration at a frequency of 30 Hz and amplitude of 6 mm. The mean values of the one repetition maximum (1RM) tests for both groups increased significantly from the pretest week to the fourth week and from the fourth week to the eighth week (CTG: mean 19.02, s = 7.88%, p = 0.01; mean 10.50, s = 6.86%, p = 0.019, respectively; VTG: mean 16.02, s = 8.30%, p = 0.017; mean 12.55, s = 8.76%, p = 0.019, respectively). The increases in the maximal voluntary contraction (MVC) tests were also statistically significant from the pretest week to the fourth week and from the fourth week to the eighth week (CTG: mean 12.32, s = 8.33%, p = 0.004; mean 9.95, s = 5.32%, p = 0.006, respectively; VTG: mean 10.16, s = 11.71%, p = 0.003; mean 10.36, s = 2.96%, p = 0.01, respectively). There was no significant difference between the 1RM and MVC test results in the eighth and twelfth weeks in either group. No significant differences were observed between the groups (p < 0.05). In conclusion, the application of local vibration does not change the chronic effects of dynamic ST in untrained individuals.

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Section: Test Protocolmentioning

confidence: 99%

Effects of 12 weeks of dynamic strength training with local vibration

Drummond

Couto

Augusto

et al. 2014

European Journal of Sport Science

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“…The most common type of vibration used in training is whole body vibration (WBV). With WBVs, the feet stay on the vibration platform and the oscillation of that platform pushes the individual [ 6 ] . According to Luo et al [ 21 ] , the vibration energy may be dissipated during WBV before reaching the target muscle.…”

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confidence: 99%

Acute Effects of Resistance Training with Local Vibration

et al. 2013

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The aim of this study was to verify the acute effects of the application of local vibration on upper limbs during resistance training on the number of maximum repetitions, metabolic and hormonal responses. 32 volunteers performed a maximum voluntary contraction test during a lat pulldown exercise. After the test, all volunteers underwent one conventional resistance training session and one resistance training session with local vibration. In both interventions, volunteers performed 4 sets with the highest possible number of repetitions of the lat pulldown exercise at 55% of maximum voluntary contraction. During the vibratory resistance training intervention, vibration was locally applied (20-Hz and 12-mm). During the conventional resistance training, volunteers performed the same procedures without vibration. Blood samples were taken at each experimental session before and 5 min after the end of each intervention. No significant differences were observed in number of maximum repetitions between the series of vibratory and conventional training. Serum testosterone, cortisol and lactate were significantly increased after 2 interventions. Vibratory resistance training induced greater increases in testosterone and lactate concentrations. No significant changes were found in creatine kinase, creatinine or urea concentration. These data indicate that local vibration increases the metabolic and anabolic response to the resistance training, without changing the training volume.

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“…A vibração possuía uma frequência de 8 Hz, amplitude de 6 mm e era aplicada durante os 6 segundos de CVM. Vibrações com 8 Hz de frequência e 6 mm de amplitude, aplicadas na direção da resultante das forças musculares, já se mostraram eficientes para gerar efeitos crônicos sobre a força muscular (Couto et al, 2012;Silva et al, 2008).…”

Section: Protocolos De Treinamentounclassified

“…Dentre os estudo encontrados, apenas Couto et al (2012) investigaram os efeitos do treinamento de força, combinado com a vibração localizada, sobre a velocidade de corrida. Estes autores não encontram efeitos positivos deste tipo de vibração, mas analisaram apenas o efeito sobre o desempenho médio em todo o percurso do teste de velocidade.…”

Section: Equipamentosunclassified

“…Como a vibração localizada possibilita um maior aproveitamento da energia de vibração (Luo, McNamara, & Moran, 2005b), é possível que a aplicação desse tipo de estímulo seja capaz de gerar aumentos significativos na velocidade de corrida. Alguns autores verificaram efeitos positivos da aplicação localizada de vibração sobre o desempenho (Carson, Popple, Verschueren, & Riek, 2010;Couto, Silva, Barbosa, & Szmuchrowski, 2012;Cronin, Nash, & Whatman, 2008;Issurin, Liebermann, & Tenenbaum, 1994;Luo et al, 2005b;Silva et al, 2008). Dentre estes estudos, apenas Couto, Silva, Barbosa, e Szmuchrowski (2012) …”

Section: Introductionunclassified

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Efeito crônico do treinamento de força com vibração localizada sobre a velocidade de corrida

et al. 2015

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ARTIGO ORIGINAL | ORIGINAL ARTICLE RESUMOO objetivo do presente estudo foi verificar o efeito crônico do treinamento de força de membros inferiores com diferentes frequências de vibração localizada sobre a corrida de velocidade. Após a realização de um teste de velocidade de corrida de 40m (V40m), 55 homens, não treinados, foram distribuídos em quatro grupos: Isométrico, vibração localizada com frequência de 8-Hz, vibração localizada com frequên-cia de 26-Hz e Controle. Após as 4 semanas de treinamento foi realizado novamente o teste V40m. A comparação das médias dos quatro grupos nas etapas de pré e pós-teste foi realizada a partir da ANOVA com Medidas Repetidas e post hoc de Tukey. Não foram encontradas diferenças significativas entre os valores de velocidade média no teste V40m entre o pré-teste e pós-teste para nenhum dos quatro grupos citados. A partir dos resultados encontrados, foi possível concluir que o treinamento de força com aplicação de vibração localizada na direção da resultante das forças musculares, com frequências de 8 e 26 Hz, não foi capaz de aumentar a velocidade de corrida. Palavras-Chave: Treinamento, Vibração, Velocidade ABSTRACTThe aim of this study was to verify the chronic effect of strength training for lower limbs with different frequencies of local vibrations on the running speed. After performing the test run speed of 40m (V40m), 55 untrained men were distributed into four groups: Isometric, 8-Hz, 26-Hz and Control. After 4 weeks of training, was performed the test V40m. The ANOVA with repeated measures and Tukey's post hoc were used. There were no significant differences between the values of average speed in the test V40m between the pretest and posttest for any groups. From the results, it was concluded that strength training with local vibrations applied in the direction of the resultant muscle forces, with frequencies of 8 and 26 Hz, was not able to increase running speed.

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Chronic Effects of Different Frequencies of Local Vibrations

Cited by 20 publications

References 12 publications

Effects of 12 weeks of dynamic strength training with local vibration

Effects of 12 weeks of dynamic strength training with local vibration

Acute Effects of Resistance Training with Local Vibration

Efeito crônico do treinamento de força com vibração localizada sobre a velocidade de corrida

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