Assessment of ground reaction force during scoliotic gait
- 259 Downloads
Although the causes and progression of adolescent idiopathic scoliosis (AIS) are still unclear, a recent extensive review has indicated a number of possible aetiological factors. Previous investigations, employing gait measurements, have indicated asymmetries in the ground reaction forces and suggest a relationship between these asymmetries, neurological dysfunction and spinal deformity. Using a strain-gauge force platform, the present study has examined the time-domain parameters of various components of the ground reaction force together with impulse. Symmetry indices (SI) between left and right sides have also been estimated. The results show that the patients with a left compensatory curve had a greater SI for a left-side impulse, whilst subjects with little or no compensation had a greater rightside impulse. This indicates that a possible gait compensation is occurring, so that the subjects compensate on the opposite pelvis/lower limb to that of the curve. While indicating the asymmetries between left and right, the results also serve to highlight the value of using kinetic parameters in developing the understanding of the pathogenesis and aetiology of scoliosis.
KeywordsGround reaction force Impulse Scoliosis Spine
Unable to display preview. Download preview PDF.
- 2.Burwell RG, Dangerfield PH (2000) Adolescent idiopathic scoliosis: hypotheses of causation. In: Burwell RG, Dangerfield PH, Lowe TG, Margulies JY (eds) Etiology of adolescent idiopathic scoliosis. State of the art reviews 14. Hanley and Belfus, USA, pp 319–334Google Scholar
- 3.Burwell RG, Dangerfield PH, Lowe TG, Margulies JY (eds) (2000) Etiology of adolescent idiopathic scoliosis. State of the art reviews. Hanley and Belfus, USAGoogle Scholar
- 4.Burwell RG, Kirby AS, Cole AA, Webb JK, Moulton A, Cavdar S (1997) Torsion in lower limb bones of children screened for adolescent idiopathic scoliosis. In: Sevastik JA, Diab KM (eds) Research into spinal deformities, IOS Press, pp 57–61Google Scholar
- 8.Hamil J, Kuntzen KM (1995) Biomechanical basis of human movement. Lippincott, Philadelphia, pp 398–403Google Scholar
- 10.Herzog W, Nigg BM, Read LJ, Olsson E (1989) Asymmetries in ground reaction force patterns in normal human gait. Med Sci Sports Exerc 21: 10–114Google Scholar
- 15.McCrory JL, White SC, Lifeso RM (1998) Vertical ground reaction forces: objective measures of gait following hip arthroplasty. Proceedings of North American Congress on Biomechanics, University of Waterloo, CanadaGoogle Scholar
- 19.Wilk BE, White SC, Gilchrist LA (1998) Effect of an induced leg-length discrepancy on kinetic measures derived from vertical ground reaction forces during normal treadmill walking. Proceedings of North American Congress on Biomechanics, University of Waterloo, CanadaGoogle Scholar