ELECTROMIOGRAPHIC ACTIVITY OF TRUNK STABILIZERS IN THE ISOMETRIC PUSH-UP EXERCISE WITH MECHANICAL VIBRATIONS

• Autor(a) principal: Coutinho, Victor Costa
• Data de Publicação: 2021
• Outros Autores: dos Santos, Patrick, Silva, Fabio Ferreira da, Ferreira, Jacielle Carolina
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Corpoconsciência (Online)
• Texto Completo: https://periodicoscientificos.ufmt.br/ojs/index.php/corpoconsciencia/article/view/12486
• topic: Core; Rectus Abdominal; Longuíssimo; Core; Reto Abdominal; Longuíssimo; Core; Rectus Abdominal; Longissimus

The aim of this study was to verify whether mechanical vibration increases the electromyographic activation (EMG) of the core muscles during the isometric push-up exercise. Thirteen healthy men participated in the study. The experimental sessions consisted of performing a repetition of isometric push-up with elbow angles at 90 ° until voluntary exhaustion. In one session, the push-up was performed with the hands on a vibrating platform at a frequency of 20Hz (V20). In the other session, the platform remained off during the exercise (V00). The EMG of the Rectus Abdominal (RA) and Longissimus (LO) muscles was evaluated. The Root Mean Square (RMS) of RA and LO was higher at V20 compared to V00 (RA: p = 0.002; g=0,6; LO: p = 0.001; g=1,2), as well as Median Frequency (FMED) (RA: p = 0.004; g=2; LO: p = 0.001; g=2). The mechanical vibration altered the neuromuscular responses of the core, since the EMG of the muscles analyzed was greater in the V20 session compared to the V00 session.