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논문 기본 정보

자료유형
학술저널
저자정보
Carmen Concerto (School of Health and Medical Sciences Seton Hall University) Bahaa Amer (Department of Pre-clinical Sciences New York College of Podiatric Medicine) Anaida Abagyan (Department of Pre-clinical Sciences New York Coll) Yisheng Cao (Department of Pre-clinical Sciences New York Coll College of Podiatric Medicine) Carmenrita Infortuna (Department of Pre-clinical Sciences New York College of Podiatric Medicine) Eileen Chusid (Department of Pre-clinical Sciences New York Coll) Diego Coira (Hackensack University Medical Center) Fortunato Battaglia (School of Health and Medical Sciences Seton Hall University)
저널정보
한국운동재활학회 Journal of exercise rehabilitation Journal of exercise rehabilitation Vol.12 No.3
발행연도
2016.1
수록면
171 - 175 (5page)

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In this study we investigated the effect of a dual task (DT) comprised of a nonfatiguing leg and foot extension coupled with a calculation task on postexercise facilitation (PEF) of motor evoked potentials (MEPs) tested by using transcranial magnetic stimulation (TMS). Twelve right-handed healthy subjects participated in the study. They were required to per-form a motor task, a cognitive task and a DT. The motor task consisted of extending the right leg and foot for 30 sec at 20% of the maximal vol-untary contraction. The cognitive task consisted of a 30-sec backward calculation. In the DT condition, motor and cognitive tasks were per-formed concurrently. Resting motor threshold and 10 MEPs were col-lected before and immediately after each task. TMS was delivered to the motor hot spot of the right vastus lateralis and tibialis anterior (TA) muscles. Results showed that exercise induced a significant PEF in both VL and TA muscles while calculation was not associated with sig-nificant PEF. Furthermore, DT was associated with lack of significant PEF in both muscles (VL, 116.1%±9.6%; TA, 115.7%±9%). Our data indi-cates DT interference on corticospinal excitability after a nonfatiguing exercise. Our experimental paradigm may be used to address postexer-cise motor cortex plastic adaptations induced by motor and cognitive tasks of different complexity in sport, aging and neuropsychiatric dis-eases.

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