THE PELVIC RING IS STRESSED BY EXTERNAL FORCES by partial body weight, by ligament tension, and by muscles forces stabilizing the hip joints. For the symphysis ossis pubis there exist data concerning the type and magnitude of stresses. In one-leg-standing pressure, shear forces are predominant, and in both-leg-standing tensile forces are acting on the pelvic ring. Rupture of the symphysis is pr...

Material In 2012 the whole material gathered 1950 cases. Patients were 2 to 60 years old. Explanation of biomechanical aetiology of scoliosis in point 1. “Syndrome of contractures”[SofC] (Siebenersyndrom) according to Prof.Hans Mau. 2. Asymmetry in movement of hips connected with SofC. Limited movement of the right hip. 3. Influence on spine comes by walking (gait) and because of habit of perma...

objectives: the aim of this study was to identify the role of attentional process in postural control using choice reaction time task while changing the visual and proprioceptive cues under difficult balance task (standing on one-leg). methods: this cross-sectional study was conducted by participating 20 young people (22.75±2.29). each subject performed one-leg standing as balance task for each...

[Purpose] This study researched the influences of different loads on muscle activity of the posterior fibers of the gluteus medius in a one-leg standing position. [Subjects] Twenty-four healthy adult men participated in this study. [Methods] All participants performed the one-leg standing position under four conditions: the standard no-load condition, in which the non-weight-bearing leg was lif...

Flamingos (Phoenicopteridae) often stand and sleep on one leg for long periods, but it is unknown how much active muscle contractile force they use for the mechanical demands of standing on one leg: body weight support and maintaining balance. First, we demonstrated that flamingo cadavers could passively support body weight on one leg without any muscle activity while adopting a stable, unchang...

[Purpose] The present study was performed to clarify the influence of the vestibulorespiratory and peripheral reflexes on ventilation when standing on one leg. Ventilatory responses and metabolic responses under various vision and platform conditions were investigated and the responses in phases I and II were compared. [Subjects] Twenty healthy subjects were instructed to stand on one leg with ...