양손으로 물체 옮기기 과제 수행 시 우세손이 옮기는 물체의 종류와 목표점의 위치 변화가 비우세손의 팔뻗기 동작에 미치는 영향

• 영문명: The Influence of Different Objects and Target Locations of Dominant Hand on the Non-Dominant Hand Movement Kinematics in Bimanual Reaching
• 발행기관: 한국전문물리치료학회
• 저자명: 김민희(Min-hee Kim) 전혜선(Hye-seon Jeon)
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제15권 제3호, 44~52쪽, 전체 9쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2008.09.30

영문 초록

  The purpose of this study was to investigate the effects of different objects and target location of dominant hand on the non-dominant hand movement kinematics in a bimanual reaching task. Fifteen right-handed volunteers were asked to reach from same starting point to the different target point of right and left hand with grasping the objects of different size. Independent variables were 1) three different object types (small mug cup, name pen, and PET bottle), and 2) three different target locations (shorter distance, same distance, and longer distance than the non-dominant hand) of the dominant hand. Dependent variables were movement time (MT), movement distance (MD), movement mean velocity (MV<SUB>mean</SUB>), and movement peak velocity (MV<SUB>peak</SUB>) of the non-dominant hand. Repeated measures two-way analysis of variance (ANOVA) was used to test for differences in the non-dominant hand movement kinematics during bimanual reaching. The results of this study were as follows: 1) MT of the non-dominant hand was increased significantly when traveling with grasping the mug cup and reaching the far target location, and was decreased significantly when traveling with grasping the PET bottle and reaching the near target location of the dominant hand. 2) MD of the non-dominant hand was significantly increased during reaching the far target location, and significantly decreased during reaching the near target location with dominant hand. 3) MV<SUB>mean</SUB> of the non-dominant hand was increased significantly when traveling with grasping the PET bottle, and was decreased significantly when traveling with grasping the mug cup of the dominant hand. Therefore, it can be concluded that the changes of the ipsilateral hand movement have influence on coupling of the contralateral hand movement in bimanual reaching.

목차

Abstract
Ⅰ. 서론
Ⅱ. 연구방법
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 결론
인용문헌

키워드

Bilateral coordination Bimanual reaching Coupling Movement kinematics