Influence of the mode of load carriage on the static posture of the pelvic girdle and the thoracic and lumbar spine in vivo

The influence of various modes of carrying a load of 16 kg (15.69 DaN) on the static positioning of the pelvic girdle and the thoracic and lumbar segments of the spine was examined in seven male subjects. The displacement of cutaneous markers attached to easily palpable skeletal landmarks was record...

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Bibliographic Details
Published in:Surgical and radiologic anatomy (English ed.) 2001-04, Vol.23 (1), p.27-31
Main Authors: FILAIRE, M, VACHERON, J.-J, VANNEUVILLE, G, POUMARAT, G, GARCIER, J.-M, HAROUNA, Y, GUILLOT, M, TERVER, S, TOUMI, H, THIERRY, C
Format: Article
Language:English
Subjects:
Adult
Biological and medical sciences
Diseases of the osteoarticular system
Diseases of the spine
Humans
Intervertebral Disc Displacement - physiopathology
Lumbar Vertebrae - physiology
Male
Medical sciences
Pelvis - physiology
Posture - physiology
Reference Values
Space life sciences
Thoracic Vertebrae - physiology
Weight-Bearing - physiology
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Summary:The influence of various modes of carrying a load of 16 kg (15.69 DaN) on the static positioning of the pelvic girdle and the thoracic and lumbar segments of the spine was examined in seven male subjects. The displacement of cutaneous markers attached to easily palpable skeletal landmarks was recorded using 4 CCD cameras; the data acquired were analysed using an optoelectronic technique (SAGA3). The subjects stood upright on an AMTI biomechanical force platform, from which the ground reaction forces enabled displacements of the centre of gravity axis and thus the moment of the mass carried to be determined. The modes of load carriage examined were: 1) in a case in the left hand; 2) in a case in the right hand; 3) equally in two cases; 4) on the head; 5) in a rucksack; and 6) in an anterior bag. The results showed displacements of the pelvic girdle, the caudal and cranial lumbar segments, and the caudal and cranial thoracic segments in the three orthogonal planes (sagittal, frontal and transverse). The influence of the moment created by the load was seen in the statokinesigrams. The use of external markers using an optoelectronic technique, in association with the ground reaction forces, enables the mode of load carriage to be determined. The results show that the influence of the moment exerted by the mode of load carriage on the gravity axis has important ergonomic consequences.
ISSN:0930-1038
1279-8517
DOI:10.1007/s00276-001-0027-9