パーキンソン病の重心動揺 : 動揺パターンを中心に Postura Sway in Patients with Parkinson Disease : Sway Pattern on Statokinesigram
This study investigated the characteristics of postural sway in cases of Parkinson's diesease (PK). We examined 16 patients previously diagnosed with PK. The subjects stood on a stabilometer with their eyes open or closed, and the sway of the center of gravity of the body was recorded for one minute. The sway pattern during standing posture in PK patients was analyzed.<BR>The subjects consisted of 16 patients, including two with positive symptoms (PK-P), while six (PK-Na) and eight (PK-Nb) had negative symptoms.<BR>Results<BR>1) With eyes opened, the sway pattern was centripetal in six, right-left in two, diffuse in two, the displacement type in four and the multiple center type in two. With eyes closed, the sway pattern was centripetal in four, forward-backward in four, right-left in three, diffuse in one, the displacement type in two and the multiple center type in two. The displacement and multiple center types were representative of body sway in PK.<BR>2) Considering the similarities in body sway with eyes open and closed, we divided body sway in PK into three groups (centripetal and forward-backward type, right-left and diffuse type, displacement and multiple center type).<BR>3) Considering the relation between the classification by symptoms and body sway, we related PK-Na with displacement and multiple center type and PK-Nb with right-left and diffuse type.<BR>It was demonstrated that the centripetal and forward-backward type involved disorders in postural fixation and equilibrium, the right-left and diffuse type involved righting disorder, while the displacement and multiple center type involved tremor, akinesia and disorders in postural fixation and equilibrium.
- Equilibrium research
Equilibrium research 57(3), 271-279, 1998-06-01
Japan Society for Equilibrium Research