Building, bridge or wind turbine maintenance requires manual dexterity tasks by a specialist rope-access trained workforce via two principal means: harness suspension of individual workers from above, or deployment of a suspended platform or cradle from which workers access the structure to be maintained. Currently no published research compares accuracy and efficiency of simulated maintenance tasks between these modalities. This study investigated manual dexterity task performance of peg placement and shape delineation in seated, standing and suspended environments in 16 healthy controls and 26 professional rope-access trained individuals. Both seated and standing assessments were superior to those suspended, and height of suspension, total mass and years of experience had no influence on the task outcome. These findings suggest that, where feasible, cradle suspension mechanisms which permit standing maintenance are favourable in terms of task efficacy and where feasible, should be considered for deployment in wind energy and other engineering applications.

建筑、桥梁或风力涡轮机的维护需要由经过绳索接入培训的专业劳动力通过两种主要方式进行手动灵巧性任务：从上方悬挂个人工人，或部署悬浮平台或摇篮，工人从该平台或摇篮进入要维护的结构。目前没有发表的研究比较这些模式之间模拟维护任务的准确性和效率。本研究调查了 16 名健康对照者和 26 名接受过绳索训练的专业人士在坐姿、站立和悬挂环境中钉子放置和形状描绘的手动灵巧性任务表现。坐姿和站立的评估都优于悬吊的，悬吊高度、总质量和经验年限对任务结果没有影响。这些发现表明，