Effects of frontal and sagittal thorax attitudes in gait on trunk and pelvis three-dimensional kinematics.
While sagittal trunk inclinations alter upper body biomechanics, little is known about the extent of frontal trunk bending on upper body and pelvis kinematics in adults during gait and its relation to sagittal trunk inclinations. The objective was to determine the effect of the mean lateral trunk attitude on upper body and pelvis three-dimensional kinematics during gait in asymptomatic subjects. Three gait cycles were collected in 30 subjects using a motion analysis system (Vicon 612) and an established protocol. Sub-groups were formed based on the mean thorax lateral bending angle, bending side, and also sagittal tilt. These were compared based on 38 peak angles identified on pelvis, thorax and shoulder kinematics using MANOVAs. A main effect for bending side (p = 0.038) was found, especially for thorax peak angles. Statistics revealed also a significant interaction (p = 0.04993) between bending side and tilt for the thorax sagittal inclination during body-weight transfer. These results reinforce the existence of different gait patterns, which correlate upper body and pelvis motion measures. The results also suggest that frontal and sagittal trunk attitude should be considered carefully when treating a patient with impaired gait.
Département de kinesiology and Sainte-Justine Hospital Research Center, Université de Montréal, CEPSUM 2100, boul. Édouard-Montpetit Bureau 8202, C.P. 6128, succursale Centre-ville, Montréal, QC H3C 3J7 Canada. Electronic address: mickael.begon@umontreal.ca.
Mickaël
M
Begon
Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy. Electronic address: leardini@ior.it.
Alberto
A
Leardini
Istituto Ortopedico Rizzoli, Via di Barbiano 1/10, 40136 Bologna, Italy. Electronic address: claudio.belvedere@ior.it.
Claudio
C
Belvedere
Department of Physical Education and Sport Science, Bu Ali Sina University, Hamedan, Iran. Electronic address: naderfarahpour1@yahoo.ca.
Nader
N
Farahpour
Département de kinesiology and Sainte-Justine Hospital Research Center, Université de Montréal, CEPSUM 2100, boul. Édouard-Montpetit Bureau 8202, C.P. 6128, succursale Centre-ville, Montréal, QC H3C 3J7 Canada. Electronic address: paul.allard@umontreal.ca.
Paul
P
Allard
D061725:Accelerometry; D000328:Adult; D001696:Biomechanical Phenomena; D003627:Data Interpretation, Statistical; D005260:Female; D005684:Gait / Q000502:physiology; D006801:Humans; D008297:Male; D010388:Pelvis / Q000502:physiology; D011187:Posture; D012782:Shoulder / Q000502:physiology; D060726:Torso / Q000502:physiology; D055815:Young Adult
Coupling motion; Gait analysis; Kinematics; Pelvis; Trunk tilt inclination