Clinical sciences for health professionals, master Clinical Health Sciences, Faculty of Medicine Utrecht University, Utrecht, the Netherlands.
Behavioural Science Institute (BSI), Radboud University, Nijmegen, the Netherlands.
Hum Mov Sci. 2023 Apr;88:103066. doi: 10.1016/j.humov.2023.103066. Epub 2023 Feb 1.
When completing grip-selection tasks, healthy adults generally plan for the most comfortable end-posture which is termed the end-state comfort (ESC) effect. Children with and without developmental coordination disorder (DCD) are less likely to plan for ESC which begs the question as to whether they are not able to perform this type of planning or whether they prioritize other aspects of the task.
(1) Examine if children with and without probable DCD (pDCD) are able to plan for ESC if they are explicitly instructed to and (2) if this transfers to another similar task. (3) Examine if children with and without pDCD perceive the level of comfort of the grips that they use differently and if this relates to ESC planning.
Twelve children with and 12 children without probable DCD (pDCD) (aged 5-9 years) received a 10-min training session in which children were explicitly instructed to end their movement in ESC, after which they formulated their own plan to reach this goal. The study consisted of a pre-post-test design in which changes in the proportion of ESC were analyzed on the task that was trained as well as on an untrained transfer-task. Furthermore, the perceived level of comfort was examined.
Both groups of children showed a higher proportion of ESC on the post-test compared with the pre-test, on the task that was trained as well as on the transfer-task. There were no group differences regarding the perceived level of comfort of the different grip postures.
The majority of the children with and without pDCD seems to be able to adjust their planning strategy and prioritize ESC if they are explicitly instructed to.
在完成握持选择任务时，健康成年人通常会规划最舒适的末端姿势，这被称为末端舒适效应（ESC）。患有和不患有发育性协调障碍（DCD）的儿童不太可能规划 ESC，这就提出了一个问题，即他们是否无法进行这种类型的规划，或者他们是否优先考虑任务的其他方面。
（1）如果明确指示患有和不患有可能的 DCD（pDCD）的儿童规划 ESC，检查他们是否能够做到这一点，（2）如果这种情况转移到另一个类似的任务中。（3）检查患有和不患有 pDCD 的儿童是否对他们使用的握持舒适度有不同的感知，如果这种感知与 ESC 规划有关。
12 名患有和 12 名不患有可能的 DCD（pDCD）（年龄 5-9 岁）的儿童接受了 10 分钟的培训，在培训中，儿童被明确指示在 ESC 结束他们的运动，然后他们制定自己的计划来达到这个目标。该研究采用前后测试设计，分析了在训练任务和未训练转移任务上 ESC 的比例变化。此外，还检查了感知舒适度水平。
两组儿童在训练任务和转移任务的后测中，ESC 的比例均高于前测。两组儿童对不同握持姿势的感知舒适度水平没有差异。
大多数患有和不患有 pDCD 的儿童似乎能够在明确指示的情况下调整他们的规划策略，并优先考虑 ESC。
