BACKGROUND:Whole Body Vibration (WBV) has been reported to change neuromuscular activity which indirectly assessed by electromyography (EMG). Although researches regarding the influence of WBV on EMG activity of the upper extremity muscles are in their infancy, contradictory findings have been reported as a result of dissimilar protocols. OBJECTIVE: The purpose of this study was to investigate the effects of WBV on electromyography (EMG) activity of upper extremity muscles in static modified push up position. METHODS:Forty recreationally active females were randomly assigned in WBV and control groups. Participants in WBV group received 5 sets of 30 seconds vibration at 5 mm (peak to peak) and 30 Hz by using vibratory platform. No vibration stimulus was used in the control group. Surface EMG was recorded from Upper Trapezius (UT), Serratus Anterior (SA), Biceps Brachii (BB) and Triceps Brachii (TB) muscles before, during and after the vibration protocol while the subjects maintained the static modified push up position. EMG signals were expressed as root mean square (EMGrms) and normalized by maximum voluntary exertion (MVE). RESULTS:EMGrms activity of the studied muscles increased significantly during the vibration protocol in the WBV group comparing to the control group (P ≤ 0.05). The results indicated that vibration stimulus transmitting via hands increased muscle activity of UT, SA, BB and TB muscles by an average of 206%, 60%, 106% and 120%, respectively, comparing to pre vibration values. CONCLUSIONS: These findings suggest that short exposure to the WBV could increase the EMGrms activity of the upper extremity muscles in the static modified push-up position. However, more sessions of WBV application require for a proper judgment.
RCT Entities:
BACKGROUND: Whole Body Vibration (WBV) has been reported to change neuromuscular activity which indirectly assessed by electromyography (EMG). Although researches regarding the influence of WBV on EMG activity of the upper extremity muscles are in their infancy, contradictory findings have been reported as a result of dissimilar protocols. OBJECTIVE: The purpose of this study was to investigate the effects of WBV on electromyography (EMG) activity of upper extremity muscles in static modified push up position. METHODS: Forty recreationally active females were randomly assigned in WBV and control groups. Participants in WBV group received 5 sets of 30 seconds vibration at 5 mm (peak to peak) and 30 Hz by using vibratory platform. No vibration stimulus was used in the control group. Surface EMG was recorded from Upper Trapezius (UT), Serratus Anterior (SA), Biceps Brachii (BB) and Triceps Brachii (TB) muscles before, during and after the vibration protocol while the subjects maintained the static modified push up position. EMG signals were expressed as root mean square (EMGrms) and normalized by maximum voluntary exertion (MVE). RESULTS: EMGrms activity of the studied muscles increased significantly during the vibration protocol in the WBV group comparing to the control group (P ≤ 0.05). The results indicated that vibration stimulus transmitting via hands increased muscle activity of UT, SA, BB and TB muscles by an average of 206%, 60%, 106% and 120%, respectively, comparing to pre vibration values. CONCLUSIONS: These findings suggest that short exposure to the WBV could increase the EMGrms activity of the upper extremity muscles in the static modified push-up position. However, more sessions of WBV application require for a proper judgment.
Authors: Michael J Grant; David H Hawkes; Jessica McMahon; Ian Horsley; Omid A Khaiyat Journal: Eur J Appl Physiol Date: 2019-05-31 Impact factor: 3.078
Authors: Luciana M M Santos; Ana Carolina C Oliveira; Sueli F Fonseca; Angélica F Silva; Joyce N V Santos; Ana Lúcia C Souza; Jousielle M Santos; Vanessa G C Ribeiro; Arthur N Arrieiro; Ana Caroline N Prates; Luana A Soares; Pedro Henrique S Figueiredo; Fábio Martins; Vanessa P Lima; José Sebastião C Fernandes; Mário Bernardo-Filho; Redha Taiar; Daniel T Borges; Alessandro Sartorio; Henrique S Costa; Hércules R Leite; Vanessa A Mendonça; Ana Cristina R Lacerda Journal: Front Physiol Date: 2021-01-12 Impact factor: 4.566
Authors: Ana Carolina Coelho-Oliveira; Ana Cristina Rodrigues Lacerda; Ana Lúcia Cristino de Souza; Luciana Martins de Mello Santos; Sueli Ferreira da Fonseca; Jousielle Márcia Dos Santos; Vanessa Gonçalves César Ribeiro; Hércules Ribeiro Leite; Pedro Henrique Scheidt Figueiredo; José Sebastião Cunha Fernandes; Fábio Martins; Renato Guilherme Trede Filho; Mario Bernardo-Filho; Danúbia da Cunha de Sá-Caputo; Alessandro Sartorio; Darryl Cochrane; Vanessa Pereira Lima; Henrique Silveira Costa; Vanessa Amaral Mendonça; Redha Taiar Journal: Biomed Res Int Date: 2021-12-02 Impact factor: 3.411