Faculty of Healthcare Sciences, Chiba Prefectural University of Health Sciences, Chiba, Japan.
Department of Rehabilitation of Medicine, Keio University School of Medicine, Tokyo, Japan.
Physiother Theory Pract. 2024 Jul;40(7):1404-1411. doi: 10.1080/09593985.2023.2175189. Epub 2023 Feb 8.
An estimation error is the difference between motor imagery and actual motor time. Previous studies have reported that overestimation (motor imagery time < actual motor time) is related to physical functions in healthy individuals. However, this finding is unclear among individuals diagnosed with a stroke.
We investigated whether overestimation is related to physical function in individuals diagnosed with a stroke.
This study included 71 individuals diagnosed with a stroke (mean age, 67.2 ± 13.4 years; mean time since stroke, 68.4 ± 44.7 days). Imagined timed up and go test (iTUGT) was performed to assess the estimation error. First, the iTUGT was performed; subsequently, the TUGT was performed. The estimation error was calculated by subtracting the TUGT from the iTUGT, with two standard deviations (2 SDs) being calculated. Furthermore, patients were classified into appropriate estimation (AE, within ±2 SD) and overestimation (OE, over -2 SD) groups. Both groups were tested using the estimation error, iTUGT, TUGT, Berg Balance Scale (BBS), and Brunnstrom Recovery Stage (BRS). Subsequently, a correlation analysis was performed.
The OE group had a significantly higher estimation error than the AE group (OE: -7.08 ± 6.87 s, AE: -0.29 ± 1.53 s, P < .001). Moreover, the OE group had significantly lower TUGT and BBS than the AE group. The estimation error was correlated with the TUGT, BBS, and lower-limb BRS ( = -0.454, 0.431, 0.291, respectively; P < .05).
Overestimation was associated with TUGT and balance function in individuals diagnosed with a stroke.
运动想象与实际运动之间的时间差异称为估计误差。先前的研究报告称，在健康个体中，高估（运动想象时间<实际运动时间）与身体功能有关。但是，在被诊断为中风的个体中，这一发现尚不清楚。
我们研究了被诊断为中风的个体中，高估是否与身体功能有关。
这项研究纳入了 71 名被诊断为中风的患者（平均年龄，67.2±13.4 岁；中风后时间，68.4±44.7 天）。进行想象计时起立行走测试（iTUGT）以评估估计误差。首先，进行 iTUGT，随后进行 TUGT。通过从 iTUGT 中减去 TUGT 来计算估计误差，计算两个标准差（2 SD）。此外，将患者分为适当估计（AE，在±2 SD 内）和高估（OE，超过-2 SD）组。两组均使用估计误差、iTUGT、TUGT、伯格平衡量表（BBS）和 Brunnstrom 恢复阶段（BRS）进行测试。随后，进行了相关性分析。
OE 组的估计误差明显高于 AE 组（OE：-7.08±6.87 s，AE：-0.29±1.53 s，P<.001）。此外，OE 组的 TUGT 和 BBS 明显低于 AE 组。估计误差与 TUGT、BBS 和下肢 BRS 呈显著相关（分别为= -0.454、0.431、0.291；P<.05）。
高估与被诊断为中风的个体的 TUGT 和平衡功能有关。
