TY - JOUR
T1 - Influence of Parkinson’s Disease on Judging Stair Step Height
T2 - Exploratory Study
AU - Da Conceição, Núbia Ribeiro
AU - Teixeira-Arroyo, Cláudia
AU - Vitório, Rodrigo
AU - Orcioli-Silva, Diego
AU - Beretta, Victor Spiandor
AU - Nóbrega-Sousa, Priscila
AU - Gobbi, (Lilian Teresa Bucken
N1 - Funding information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: The authors would like to thank the São Paulo Research Foundation (FAPESP; grant number 2015/00612-1) and National Council for Scientific and Technological Development (CNPq; grant number 306389/2013-4) for financial support. In addition, this study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de N?l Superior – Brasil (CAPES) -Finance Code 001.
PY - 2019/2/1
Y1 - 2019/2/1
N2 - This study investigated the effects of Parkinson’s Disease (PD) on the perceptive judgment of stair step height using both exteroceptive visual and exproprioceptive judgments. We invited 14 individuals with PD and 14 neurologically healthy older adults (OA) to perform perceptual judgment tasks for first step stairway heights of 11 and 20 cm. Initially, participants performed first the exteroceptive visual judgment and then the exproprioceptive judgment in five randomized trials for each stair height. An analysis of variance for the exteroceptive visual judgment revealed no main effects or interaction between PD versus OA groups and height. However, the analysis of variance for exproprioceptive judgment revealed a significant interaction between group and height (F1,26 = 9.519; p =.005; Pη2=.268) such that both groups made more errors in exproprioceptive judgment at a height of 11 cm. The OA group made more errors in exproprioceptive judgment for the 20-cm step when compared with the PD group (p =.016) but the PD group underestimated the step height. We conclude that PD influences exproprioceptive perception of step height and that steps with smaller (vs. larger) heights induce greater exproprioceptive error.
AB - This study investigated the effects of Parkinson’s Disease (PD) on the perceptive judgment of stair step height using both exteroceptive visual and exproprioceptive judgments. We invited 14 individuals with PD and 14 neurologically healthy older adults (OA) to perform perceptual judgment tasks for first step stairway heights of 11 and 20 cm. Initially, participants performed first the exteroceptive visual judgment and then the exproprioceptive judgment in five randomized trials for each stair height. An analysis of variance for the exteroceptive visual judgment revealed no main effects or interaction between PD versus OA groups and height. However, the analysis of variance for exproprioceptive judgment revealed a significant interaction between group and height (F1,26 = 9.519; p =.005; Pη2=.268) such that both groups made more errors in exproprioceptive judgment at a height of 11 cm. The OA group made more errors in exproprioceptive judgment for the 20-cm step when compared with the PD group (p =.016) but the PD group underestimated the step height. We conclude that PD influences exproprioceptive perception of step height and that steps with smaller (vs. larger) heights induce greater exproprioceptive error.
KW - exproprioceptive judgment
KW - exteroceptive judgment
KW - gait
KW - movement disorders
KW - neurodegenerative disorders
UR - http://www.scopus.com/inward/record.url?scp=85059886991&partnerID=8YFLogxK
U2 - 10.1177/0031512518814608
DO - 10.1177/0031512518814608
M3 - Article
C2 - 30501375
AN - SCOPUS:85059886991
SN - 0031-5125
VL - 126
SP - 106
EP - 118
JO - Perceptual and Motor Skills
JF - Perceptual and Motor Skills
IS - 1
ER -