Presently there is little information regarding the relationship between trunk control and gait and balance measures in individuals with Parkinson Disease (PD). The present study evaluated the correlation between trunk control and gait and balance measures in elderly subjects with and without PD. The study also examined group differences between high functioning individuals with PD and healthy elderly subjects in these measures. 12 subjects with PD and 11 age matched healthy subjects voluntarily took part in the study. Trunk control was assessed utilizing the wobble chair, a device designed to provide a base of support that can be progressively reduced. Gait characteristics were assessed utilizing GAITRite and Tinetti Mobility Test (TMT) gait subscale. Balance was measured utilizing TMT balance subscale, Single Limb Stance time and Sit to Stand time.
The groups showed differences in TMT total score (p<.05, z=-2.22), TMT gait subscale (p<.05, z= -2.23) and step length (df=20, t=-2.28, p<.05). In elderly subjects with and without PD, trunk control showed significant correlation with age (rs = -0.61, p<.01), best single limb stance time (rs = -0.45, p<.05), sit to stand time (rs = 0.42, p<.05), TMT total score (rs = -0.41, p<.05), TMT gait subscale score (rs =-0.42, p < 0.05), step length (rs =-0.30, p<0.1), mean gait velocity (rs =-0.39, p < 0.1) and cadence (rs =-0.41, p < 0.05). The findings of the study indicate that there is a significant relation between trunk control and functional mobility. This study supports further investigation into trunk control and its relationship to gait and mobility in individuals with PD and the aged.