Interest of active posturography to detect age-related and early Parkinson's disease-related impairments in mediolateral postural control

Abstract

Patients with Parkinson's disease display impairments of postural control most particularly in active, challenging conditions. The objective of the present study was to analyze early signs of disease-related and also age-related impairments in mediolateral body extension and postural control. Fifty-five participants (18 Hoehn and Yahr stage 2 patients in the off-drug condition, 18 healthy elderly control subjects, and 19 young adults) were included in the study. The participants performed a quiet stance task and two active tasks that analyzed the performance in mediolateral body motion: a limit of stability and a rhythmic weight shift task. As expected, the patients displayed significantly lower and slower body displacement (head, neck, lower back, center of pressure) than elderly control subjects when performing the two body excursion tasks. However, the behavioral variability in both tasks was similar between the groups. Under these active conditions, the patients showed significantly lower contribution of the hip postural control mechanisms compared with the elderly control subjects. Overall, the patients seemed to lower their performance in order to prevent a mediolateral postural instability. However, these patients, at an early stage of their disease, were not unstable in quiet stance. Complementarily, elderly control subjects displayed slower body performance than young adults, which therefore showed an additional age-related impairment in mediolateral postural control. Overall, the study illustrated markers of age-related and Parkinson's disease impairments in mediolateral postural control that may constrain everyday activities in elderly adults and even more in patients with Parkinson's disease.

A posturographic procedure assessing balance disorders in Parkinson's disease: a systematic review

“…Many authors investigated the LOS in different directions. 31 , 39 – 42 , 52 , 57 The LOS values were significantly lower (suggesting impaired balance and increased risk of falling) in PD patients compared to controls. 40 , 42 , 52 PD subjects had smaller postural stability margins in all directions than elderly people, but PD patients maintained greater stability in the forward direction compared to the backward direction.…”

“… 40 , 42 , 52 PD subjects had smaller postural stability margins in all directions than elderly people, but PD patients maintained greater stability in the forward direction compared to the backward direction. 40 , 56 Moreover, Bonnet et al 31 tested impairments in ML body shifts. In this study, PD patients showed a significantly lower contribution of the ML postural control mechanisms compared with elderly control subjects.…”

Effects of the Repetitive Cross-over Step Training for Postural Stability during One Leg Standing

“…HIROKI MANI, RPT, PhD 1) , NAOYA HASEGAWA, RPT, MS 2) , KENTA TAKEDA, RPT, MS 2) , AIRI IBUKI, RPT, MS 2) , MOE SAKUMA, RPT, MS 2) , KEITA ISHIKAWA, RPT, MS 2) , HIROSHI MAEJIMA, RPT, PhD 1) , TADAYOSHI ASAKA, RPT, PhD 1) COM 2 COP COP net 2 16) 1 COP 17,18) COP c…”

The effect of lateral wedge on postural sway in Parkinson's disease

“…1 Previous studies have shown that people with PD display increased postural sway and impairment in mediolateral postural stability compared with elderly people who do not have PD. 2 Much evidence supports a strong relationship between decreased somatosensory and poor postural stability in PD. 3 Recent reports have proven that the additional somatosen- Annals of Clinical Neurophysiology Volume 20, Number 1, January 2018 sory information from the feet has a positive effect on balance control.…”