2018 年 9 巻 2 号 p. 43-51
Wearable 3-axis accelerometers have been used to analyze kinetic data in patients with motor disability. We aimed to investigate whether the kinetic properties of turnover movements in bed are different between Parkinson’s disease (PD) and hemiplegic stroke using accelerometer-based overnight monitoring. Patients with PD and hemiplegic stroke whose modified Rankin Scale (mRS) score ranged from 1 to 4 were prospectively enrolled. Patients were allocated to the slight disability group (mRS = 1 or 2) and moderate disability group (mRS = 3 or 4). In total, 45 PD patients and 39 hemiplegic stroke patients were enrolled. Total number of turnover movements in bed was similar between the PD and hemiplegic stroke patients. However, the number of turnovers to the affected side was higher in the hemiplegic stroke patients (p = 0.013). Directional preponderance in turnover movement was observed in hemiplegic stroke patients (p = 0.004). Among the hemiplegic stroke patients, all kinetic properties were significantly different between patients with slight disability and moderate disability, but not in the PD patients. Interaction of disease type, i.e.. PD or hemiplegic stroke, on the difference in number of turnover movements between slight and moderate disability was significant (p = 0.003). Our study showed that patients with hemiplegic stroke, but not PD, tend to rotate to their affected side when turning over. Estimation of night time motor disability by mRS scores, i.e.. daytime disability, may be feasible in hemiplegic stroke but not in PD. Thus accelerometer-based overnight kinetic analysis is needed to evaluate night time disability in PD.
