The aim of this study was to investigate effects of reaching distance on movement time and trunk kinematics in hemiplegic patients. Eight hemiplegic patients participated in this study. The independent variables were side (sound side vs. affected side) and target distance (70%, 90%, 110%, and 130% of upper limb). The dependent variables were movement time measured by pressure switch and trunk kinematics measured by motion analysis device. Two-way analysis of variance with repeated measures was used with Bonferroni post-hoc test. (1) There were significant main effects in side and reaching distance for movement time (p=.01, p=.02). Post-hoc test revealed that there was a significant difference between 110% and 130% of reaching distance (p=.01). (2) There was a significant main effect in side and reaching distance for trunk flexion (p=.01, p=.00). Post-hoc test revealed that there were significant differences in all pair-wise reaching distance comparison. (3) There was a significant side by target distance interaction for trunk rotation (p=.04). There was a significant main effect in target distance (p=.00). Post-hoc test revealed that there were significant differences between 70% and 110%, 70% and 130%, 90% and 110%, 90% and 130% of target distance. It was known that trunk flexion is used more than trunk rotation during reaching task in hemiplegic patients from the findings of this study. It is also recommended that reaching training is performed with limiting trunk movement within 90% of target distance whereas reaching training is performed incorporating with trunk movement beyond 90% of target distance in patients with hemiplegia.

목적 : 본 연구에서는 암묵 및 외현적 속성을 가진 운동 과제를 통해 정신훈련과 실제훈련의 효과와 정신 훈련에 적합한 속성의 운동 과제를 알아보고자 하였다. 연구방법 : 정상 성인 36명을 세 집단(정신훈련군, 실제훈련군, 대조군)으로 무작위 할당하고, 표적조준과제와 시열반응과제를 이용하여 정신훈련 및 실제훈련 실시하였다. 표적조준과제는 모니터에서 제공하는 좌우의 두 개의 원안에 마우스를 위치함과 동시에 클릭을 하게 하였고, 시열반응과제는 모니터에서 제시되는 네 가지의 색깔에 대응하는 반응패드를 손가락을 이용하여 최대한 빨리 정확히 누르도록 하여, 반응시간을 측정하였다. 정신훈련과 실제훈련은 각각 하루 30분, 3일 동안 훈련하였고, 훈련 전과 후의 운동반응시간을 측정하여 비교하였다. 결과 : 표적조준과제에서는 정신훈련군과 실제훈련군에서 모두 대조군에 비해 통계학적으로 유의하게 반응시간의 변화를 보였고(p<.05), 시열반응과제에서도 정신훈련군과 실제훈련군에서 대조군에 비해 통계학적으로 유의하게 반응시간의 변화 차이를 보였다(p<.05). 또한 각각의 과제에서 집단간의 표준화된 점수의 비교에서 표준 조준과제의 경우, 실제훈련군에서 통계학적으로 유의하게 높은 증가를 보였고(p<.05), 시열반응과제의 경우에는 실제훈련군이 그 증감이 높았지만, 통계적으로 유의한 결과를 보이지 않았다(p>.05). 결론 : 정신훈련은 암묵 및 외현적 속성을 가진 모든 과제에서 운동학습이 이루어졌고, 암묵적 지식의 습득보다는 외현적 지식이 요구되는 과제에서 운동학습의 효과가 높았다.

The task-based approach to second or foreign language pedagogy aims to provide learners with a natural context for authentic language use. While learners are performing real-world or pedagogical tasks, they have opportunities not only to get a rich and comprehensible input of real language, but also to produce target language items to exchange meanings. Interaction in doing the tasks is thought to facilitate language learning process. Thus, one of the important things that teachers have to do first for their task-based English classes is to design tasks for target language items reflecting native speakers’ authentic language use. It is expected that learners can communicate with foreigners using the prescriptive target language items outside the classroom. This research attempted to find out if non-native English teachers would be able to make accurate predictions about target language items in terms of language forms and lexical phrases that would naturally occur when English native speakers carried out two types of tasks (closed tasks and open tasks). The results showed that many language items predicted by non-native English teachers did not appear in the recorded data by English native speakers, especially for open tasks. Thus, this research called into question the practice of setting tasks at the end of a PPP cycle (presentation, practice, and production), to allow students to put into use target language items that has previously been practised.