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

Abstract

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 (EO) and eyes closed (EC). 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 body's 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 EO and EC Rocker and between Rocker EO and disk Freeman EC. Since the tibialis anterior muscle showed greater differences, especially with eyes closed, regardless of the device, which showed no significant differences between them.

Proprioceptive exercise with bosu maximizes electromyographic activity of the ankle muscles

“…In order to improve balance using several exercises, the health professionals should consider five general rules before starting a preventive or rehabilitation work as follows: (i) exercises should be safe and challenging, (ii) stressing the various planes of motion, (iii) incorporating a multisensory approach, (iv) starting on stable surfaces with bilateral support, and (v) succeeding to unstable surfaces with unilateral support, progressing to functional exercises in sports (OLIVEIRA et al, 2012).…”

“…was used, consisting of a rectangular stainless steel plate (30 x 40 mm), which was attached on the skin of the ulnar styloid process in the right antimere (OLIVEIRA et al, 2012).…”

“…Also, ankle sprains represent approximately 15% of all athletic injuries in high school students and about 800,000 visits per year (NEEDLE et al, 2013). Thus, the proprioceptive training is recommended to improve balance and neuromuscular control of the ankle and to restore the motor functions of the lower limbs (RENSTROM; LYNCH, 1999;OLIVEIRA et al, 2012).…”

Comparação Do Efeito Do Treinamento Proprioceptivo No Tornozelo De Não Atletas E Jogadores De Voleibol

“…Conforme mostrado no estudo de Braun Ferreira et al 22 , em que 25 atletas sem lesão melhoraram a ativação dos músculos tibiais, fibular longo e gastrocnêmios após exercícios em superfícies instáveis. Da mesma forma, o trabalho de Oliveira et al 23 treinaram dez indivíduos saudáveis e fisicamente ativos utilizando disco de Freeman e balancim, a fim de avaliar a ativação de reto femoral e tibial anterior. Ao fim do estudo, houve melhora da ativação dos dois grupos musculares, sendo mais significante o aumento em tibial anterior, o que mostra que os músculos do tornozelo podem ser mais importantes para manutenção do equilíbrio do que grandes músculos do membro inferior.…”

Efeitos do treinamento proprioceptivo na estabilidade do tornozelo em atletas de voleibol

“…O incremento destes treinamentos também são importantes para bons resultados, como mostrou o estudo de Oliveira et al, 24 que durante a realização de exercícios proprioceptivos de olhos vendados apresentou uma ativação muscular maior dos estabilizadores dinâmi-cos, quando comparado com a realização de exercício de olhos abertos, mostrando assim a influência do sistema visual na propriocepção corporal. Além disso, o Colégio Americano de Medicina do Esporte recomenda que um aumento no grau de dificuldade dos exercícios de equilíbrio pode ser realizado pela progressiva redução da base de apoio, com movimentos dinâmicos que perturbam o centro de gravidade, destacando músculos posturais ou reduzindo as entradas sensoriais 25 .…”