Frederico Balbino Lizardo

Análise eletromiográfica de músculos do membro inferior em exercícios proprioceptivos realizados com olhos abertos e fechados

INTRODUCTION: Proprioception is a term used to describe all the neural information originated from the proprioceptors of the joints, muscles, tendons, ligaments and capsules, which is sent via afferent pathways to the central nervous system. EMG is the study of muscle function through the investigation of the electrical signal emanated from the muscle and it is also the study of the motor unit activity. OBJECTIVE: To perform electromyographic analysis of the rectus femoris (RF) and tibialis anterior (TA) in different proprioceptive exercises (disc Freeman and rocker) with eyes open (OE) and closed (CE). METHODS: The analysis was conducted with 10 physically active male subjects, in a collection time of 10 seconds on each device with eyes both open and closed. RESULTS: Thus, according to our findings, significant difference is observed when the proprioceptive exercises are performed with eyes open and closed, obtaining higher muscle activation, according to the electromyographic analysis, in the exercises with eyes closed, highlighting the importance of the visual system and how it interferes in the bodys position when it is subjected to balance changes caused by the studied devices. CONCLUSION: Therefore, it can be concluded that the rectus femoris muscle did not show evident significant differences between the rocker and Freeman disc, as well as when the exercise was performed with eyes open or closed. The significant difference occurred was between the OE and CE Rocker and between Rocker OE and disk Freeman CE. Since the tibialis anterior muscle showed greater differences, especially with eyes closed, regardless of the device, which showed no significant differences between them.

ANÁLISE ELETROMIOGRÁFICA DOS MÚSCULOS DO ABDOME EM EXERCÍCIOS ABDOMINAIS COM E SEM UTILIZAÇÃO DE DIFERENTES APARELHOS: UMA REVISÃO DE LITERATURA

Several devices for abdominal exercises are widespread in the market and disclosed in the practice of strength training, however, there are doubts about the effectiveness of these devices in abdominal exercises. Therefore, this study aimed to analyze the p u b l i c a t i o n s i n s c i e n t i f i c l i t e r a t u re o n electromyographic activity of the abdominal muscles abdominal exercises with and without the use of different devices. The methodological design of this study was characterized by a systematic review of the literature covering classic textbooks of Human Anatomy and national and international articles on the topic in question. After the analysis of the researched material, it is concluded that the traditional abdominal above exercise is effective on the rectus belly muscle recruitment as a whole and in reducing the activity of the flexor muscles of the thigh and although most abdominal devices do not provide sufficient justification to replace exercise traditional abdominal above, this diversity of equipment can be useful to change a training program.