집중방식이 이중과제 수행에 미치는 영향

• 영문명: The Effect of Attentional Focus on the Performance of Dual Task
• 발행기관: 한국전문물리치료학회
• 저자명: 노정석(Jung-suk Roh) 이충휘(Chung-hwi Yi) 조상현(Sang-hyun Cho) 전혜선(Hye-seon Jeon) 권혁철(Hyuk-cheol Kwon) 김택훈(Tack-hoon Kim)
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제15권 제2호, 11~19쪽, 전체 9쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2008.05.30

영문 초록

  Studies of attentional focus effects, have shown that the performer"s attentional focus plays an important role in the performance and learning of motor tasks. We examined the influence of attentional focus on the performance of dual tasks (a postural task and a suprapostural task) and used electromyography (EMG) to examine whether the differences between external and internal focus were also manifest at the neuromuscular level. The subjects (n=40) stood on a balance board (postural task) and held a bar horizontally (suprapostural task). All of the subjects performed under different attentional focus conditions: external (balancer on balance board) or internal (feet) focus on the postural task, and external (balancer on bar) or internal (hand) focus on the suprapostural task. The mean displacement velocity of the bar and the percent reference voluntary contraction (%RVC) of the biceps brachii were reduced when the subjects adopted an external focus on the suprapostural task (p<.05). In addition, the mean displacement velocity of the balance board and %RVC of the tibialis anterior were reduced when the subjects adopted an external focus on the postural task (p<.05). When the subjects adopted an external focus on the suprapostural task, the mean displacement velocity of the balance board and %RVC of the tibialis anterior were also reduced (p<.05). When the subjects" attentional focus was on the postural task, there were no differences in the mean displacement and %RVC of the biceps brachii between attentional focuses. The performance of each task was enhanced when subjects focused on the respective task. The suprapostural task goals had a stronger influence on postural control than vice versa. These results reflect the propensity of the motor system to optimize control processes based on the environmental outcome, or movement effect, that the performer wants to achieve.

목차

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

키워드

Electromyography External focus postural task Suprapostural task