Sequência de ativação dos músculos lombopélvicos

Abstract

In article 1 whose title is “Women with low back pain do not present a pattern in the sequence of activation of the lumbopelvic muscles that differentiates them from women without low back pain” aimed to investigate whether there is a pattern in the sequence of activation of the lumbopelvic muscles and if there is a difference in the time of onset of activation of these muscles among women with and without chronic low back pain. It is a cross-sectional study carried out with 28 women, 17 women without low back pain and 11 with pain complaints. Electromyographic signals from the erector spinae muscles, gluteus maximus and biceps femoris were collected during 3 repetitions of the test. No significant differences were found in onset values between groups. The results demonstrate that there is no pattern in the sequence of activation of these muscles. Article 2 entitled “Assessment of the activation sequence of the lumbopelvic muscles in jiu jitsu athletes without pain and with low back pain” aimed to verify if there is a pattern in the activation sequence of the lumbopelvic muscles that differentiates jiu jitsu athletes with pain of athletes without pain, and also to verify if there is a difference in muscle activation onset times (onset) between these groups. For this cross-sectional study, a total of 13 men, practitioners of jiu-jitsu, distributed in GCDL (n=8) and GSDL (n=5). Our results in the GSDL are in agreement with what would be considered a more efficient motor pattern in the hip extension movement, which would be a sequence initiated by the gluteus maximus, followed by the hamstrings and ended by the lumbar erectors. Our results show that athletes with low back pain have a pattern of muscle activation that differs from individuals without low back pain.