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선 자세에서 이중과제 수행에 따른 자세 동요와 근활성도 변화
Changes of Postural Sway and Muscle Activation While Standing Upright and Performing a Dual Task

최진호    (대구한의대학교 보건치료대학 물리치료학과   ); 이한숙    (을지대학교 보건과학대학 물리치료학과   ); 장종성    (대구한의대학교 보건치료대학 물리치료학과  );
  • 초록

    Purpose: This study was designed to investigate the changes of postural sway and muscle activation while standing upright and performing a dual task. Methods: Nine healthy adults were recruited and provided their written informed consent. They performed a balance task with and without a cognitive task on a force flatform (Good balance, Metitur Ltd., Filand). Postural sway was measured as medio-lateral and anterior-posterior distance and the velocity of the center of pressure and muscle activations of the ankle dorsi- and plantar-muscle was measured. The recruits completed three trials and the data was analyzed by a paired t-test. Results: There were significant differences in the medio-lateral and anterior-posterior distance and the velocity of the center of pressure, and significant increases in the muscle activities of the tibialis anterior. Conclusion: These findings revealed that performing a dual task increases postural sway and muscle activation of the ankle when simultaneously maintaining balance and performing another cognitive task. Future studies should focus on balance training with a dual task for patients.


  • 주제어

    Balance .   Dual task .   Muscle activation .   Postural sway.  

  • 참고문헌 (22)

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  • 이 논문을 인용한 문헌 (4)

    1. Lee, Kwan-Sub ; Kim, Chung-Sun 2012. "The Effect of Medio-lateral Balance to Head Rotation in Stroke Patient" 대한물리치료학회지 = The journal of Korean Society of Physical Therapy, 24(5): 334~339     
    2. 2012. "" 대한물리치료학회지 = The journal of Korean Society of Physical Therapy, 24(6): 398~404     
    3. 2012. "" 대한물리치료학회지 = The journal of Korean Society of Physical Therapy, 24(6): 405~408     
    4. Sagong, Woo-Won ; An, Duk-Hyun 2014. "Postural Strategy by the Difference of Shoe Heel Height During Quiet Standing on an Unstable Surface" 한국전문물리치료학회지 = Physical Therapy Korea, 21(2): 28~36     

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