Role of hip abduction in the kinetics of the thoracic and lumbar spine.
The motion of the thoracic and lumbar spine segments was analysed by mean of the skin landmarks method in 14 volunteers (7 males, 7 females). The results demonstrated that there was no significant difference between men and women and there was either facilitation or limitation of the motion of the characteristic landmarks of spinal segments during trunk motion in perpendicular planes. The mobility of spinal segments was associated with pelvic girdle motion in order to obtain the planned amplitude, and varied with hip joint abduction. The analysis of the precise mechanisms of relaxing or stretching of the pelvivertebral musculo-ligamentous structures constitutes a large field of investigation that necessitates the study of other lower limb postures and the use of robotic techniques.
Garcier
J M
JM
Laboratory of Anatomy, Faculty of Medecine, Clermont-Ferrand, France.
Poumarat
G
G
Vacheron
J J
JJ
Guillot
M
M
Harmand
Y
Y
Monnet
J P
JP
Vanneuville
G
G
D000328:Adult; D001696:Biomechanical Phenomena; D005260:Female; D006621:Hip Joint / Q000502:physiology*; D006801:Humans; D008159:Lumbar Vertebrae / Q000502:physiology*; D008297:Male; D009068:Movement; D010384:Pelvic Bones / Q000502:physiology; D013904:Thoracic Vertebrae / Q000502:physiology*