Trabalho de Conclusão de Curso de Especialização
Análise do comportamento cinemático do joelho, quadril, lombar e pelve durante a realização do exercício “flexão de joelho em pé” com intensidade progressiva
Fecha
2006-01-17Autor
Silva, Luciano da
Institución
Resumen
The purpose of the current study was to examine the pelvic and lumbar comportment during the
realization of the standing leg curl (SLC) exercise with progressive intensity trials, on young
adults of both genders. With this purpose, 13 individuals were evaluated, with ages between 20
and 34, familiarized with weight resistance training (WRT) and with this particular exercise.
The subjects were aware of the testing procedures and accepted to participate spontaneously.
They were submitted to One Maximal Repetition Test (1MR) on SLC exercise, and were filmed
at each attempt to overcome the workload. The variables (angles) were obtained by means of the
Peak Motus Inc. System. The attempts were arranged by the relative intensities of the subjects’
trials, nearly 45%, 65%, 75% e 85% of the 1RM. For each of the intensities the following
variables were analyzed: a) angles of the hip and knee joints; b) pelvic angles from the sagittal,
frontal and transversal planes; c) the angle of the lumbar spine. The Kruskal-Wallis statistical
test was realized to analyze the difference between the intensity groups; the Pearson Correlation
was used to analyze the difference between variables and finally a descriptive analysis was also
done. The results for the objective (a) demonstrated that at the end of the movement the values
of the knee angles decreased with the increase of the intensity, and this late one also has shown
to have expressive effect on angle values of the hip articulation where it was possible to observe
that the hip flexes with the knee joint. The results of objective (b) showed that the pelvis
inclines itself to the opposite side of the exercise and posterior rotates on the side which the
exercise is being performed occurring simultaneously anterior inclination with the movement.
The intensity was significant only for the inclination angles. The results of the objective (c)
showed that the lumbar angle decreases with a SLC exercises. The intensity was influent at the
second half of the movement. It has been concluded that during the SLC exercise occur a
compensatory movement of the structure analyzed and also that the intensity was significant for
some variables, for instance hip flexion, pelvic inclination and lumbar extension.