A study on characteristic of motor behavior and spatial perception in clients with idiopathic scoliosis with varied severity.

• Main Authors: Chia Chi Gao, 高嘉祈
• Other Authors: J. S. Chern
• Format: Others
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/31018024911094348525

碩士 === 長庚大學 === 職能治療學系 === 101 === Background : Idiopathic scoliosis (IS) is the most common type of scoliosis and affects girls more than boys during their teenager years. Genetic, musculoskeletal or neural abnormality or dysfunction were shown to be associated with IS. Patients with IS subjectively report having problem with spatial perception. Studies also showed that their motor behavior while walking was different from age matched normal subjects. 15% of IS subjects will deteriorate. But the relationship between the increment of cobb’s angle and the level of motor behavior impairment is yet to be established. The location of scoliosis is variable. Thus the present study aimed to investigate e motor behavior characteristics during standing and walking and spatial perception performance between scoliosis and age, sex-match non-IS subjects. Methods: Two groups of subjects, 30 scoliosis and 30 normal, were recruited and measured of their motor behavior while standing and walking and of spatial perception performance. Motor behavior is measured by a foot-pressure measurement system which records the center of pressures (CoP). Amount of CoP sway is used to quantify motor behaviors while standing and individual foot CoP roll-over pattern is used to quantify motor behaviors while walking. Visual spatial perception is measured by line bisection test, bell cancellation and spatial relation part of Differential aptitude test (DAT). CoP sway is measured while patients were asked to stand in two postures (standard stance and tandem stance) for 30s each. Patients were asked to walk in comfortable speed while the CoP roll-over pattern was measured. Results: The results shows significant difference between IS and non-IS subjects in bell cancellation test (number of omission in IS: 10.30±10.066, number of omission in controls: 4.97±5.436, p=.01) and DAT(Lower scores in IS than in normal controls, p=.04) but no significant difference between subjects with different cobb’s angle and different curve location. Almost all CoP parameters were different significantly (p<.05) between IS and non-IS group, CoP roll-over pattern while walking were different between IS and non-IS subjects in the midswing stage .No different in all CoP parameters between subjects with varied Cobb’s angle and between subjects with different IS location were found. Discussion and Conclusions: The performance of spatial perception, standing stability and walking in IS is different from normal controls. IS might not be only a musculoskeletal problems but a problem associated with central operation deviation. Future studies are needed to clarify the role of central mechanism and ankle-foot mechanism associated with IS. Correction of associated malalignment in the lower extremity might be needed to correct the deviated CoP roll-over-pattern while walking for prevention of cumulated limb injuries resulting from abnormal walking mechanics.