1 University of South Carolina, Columbia, SC, USA.
2 Rancho Los Amigos National Rehabilitation Center, Downey, CA, USA.
Neurorehabil Neural Repair. 2019 Apr;33(4):319-328. doi: 10.1177/1545968319836231. Epub 2019 Mar 18.
Persistent deficits in arm function are common after stroke. An improved understanding of the factors that contribute to the performance of skilled arm movements is needed. One such factor may be self-efficacy (SE).
To determine the level of SE for skilled, goal-directed reach actions in individuals with mild motor impairment after stroke and whether SE for reach performance correlated with actual reach performance.
A total of 20 individuals with chronic stroke (months poststroke: mean 58.1 ± 38.8) and mild motor impairment (upper-extremity Fugl-Meyer [FM] motor score: mean 53.2, range 39 to 66) and 6 age-matched controls reached to targets presented in 2 directions (ipsilateral, contralateral). Prior to each block (24 reach trials), individuals rated their confidence on reaching to targets accurately and quickly on a scale that ranged from 0 ( not very confident) to 10 ( very confident).
Overall reach performance was slower and less accurate in the more-affected arm compared with both the less-affected arm and controls. SE for both reach speed and reach accuracy was lower for the more-affected arm compared with the less-affected arm. For reaches with the more-affected arm, SE for reach speed and age significantly predicted movement time to ipsilateral targets ( R = 0.352), whereas SE for reach accuracy and FM motor score significantly predicted end point error to contralateral targets ( R = 0.291).
SE relates to measures of reach control and may serve as a target for interventions to improve proximal arm control after stroke.
中风后手臂功能持续受损较为常见。需要更好地了解导致熟练手臂运动表现的因素。其中一个因素可能是自我效能感（SE）。
确定中风后轻度运动障碍个体进行熟练、目标导向的伸手动作时的 SE 水平，以及伸手表现的 SE 是否与实际伸手表现相关。
共有 20 名慢性中风患者（中风后月数：平均 58.1 ± 38.8）和轻度运动障碍（上肢 Fugl-Meyer [FM]运动评分：平均 53.2，范围 39 至 66）和 6 名年龄匹配的对照者进行了 2 个方向（同侧、对侧）的目标伸手。在每个块（24 次伸手试验）之前，参与者在 0（不太有信心）到 10（非常有信心）的范围内对准确快速地伸手到目标的信心进行评分。
与非受累侧和对照组相比，受累侧的整体伸手速度较慢，准确性较低。与非受累侧相比，受累侧的伸手速度和伸手准确性的 SE 均较低。对于受累侧的伸手，伸手速度和年龄的 SE 显著预测了同侧目标的运动时间（ R = 0.352），而伸手准确性和 FM 运动评分的 SE 显著预测了对侧目标的终点误差（ R = 0.291）。
SE 与伸手控制的测量相关，可能成为改善中风后近端手臂控制的干预措施的目标。
