Optimal Vibration Stimulation to the Neck Extensor Muscles Using Hydraulic Vibrators to Shorten Saccadic Reaction Time(RAPID COMMUNICATION)
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概要
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Optimal vibration stimulation to the neck extensor muscles using hydraulic vibrators to shorten the saccadic reaction time was examined. Subjects were 14 healthy young adults. Visual targets (LEDs) were located 10° left and right of a central point. The targets were alternately lit for random durations of 2-4 seconds in a resting neck condition and various vibration conditions, and saccadic reaction times were measured. Vibration amplitude was 0.5mm in every condition. The upper trapezius muscles were vibrated at 40, 60, 80, and 100Hz in a sub-maximum stretch condition in which the muscles were stretched at 70% of maximum stretch. In addition, the muscles were vibrated at 60Hz with the muscles maximally stretched, with 70% vertical pressure without stretching, and with vibration applied to the skin in the same area as the muscle vibration. At 60, 80, and 100Hz at 70% maximum stretch, saccadic reaction time shortened significantly compared with the resting neck condition. However, no significant difference in the reaction time was observed among the frequencies. The saccadic reaction times in the maximum stretch condition, muscle pressure condition, and skin contact condition did not differ significantly from that in the resting neck condition. Vibration stimulation to the trapezius with 60-100Hz frequencies at 0.5mm amplitude in the sub-maximum stretch condition was effective for shortening saccadic reaction time. The main mechanism appears to be la information originating from the muscle spindle.
- 日本生理人類学会の論文
著者
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FUJIWARA Katsuo
Department of Human Movement and Health, Graduate School of Medical Science, Kanazawa University
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MAEDA Kaoru
Department of Physical Therapy, Morinomiya University of Medical Sciences
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Toyama Hiroshi
Dep. Of Human Movement And Health Graduate School Of Medical Sci. Kanazawa Univ.
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Asai Hitoshi
金沢大学 医学系研究科運動生体管理学
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Asai Hitoshi
Department Of Physical Therapy Graduate School Of Medical Science Kanazawa University
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Toyama Hiroshi
Department Of Radiology Fujita Health University
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Fujiwara Katsuo
Dep. Of Human Movement And Health Graduate School Of Medical Sci. Kanazawa Univ.
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Fujiwara Katsuo
Graduate School Of Medical Science Kanazawa University
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Fujiwara Katsuo
Department Of Health And Physical Education College Of Liberal Arts Kanazawa University
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Maeda Kaoru
Department Of Physical Therapy Faculty Of Health Sciences Morinomiya University Of Health Sciences
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Maeda Kaoru
Morinomiya University Of Medical Sciences
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Kunita Kenji
Department Of Sports Instruction Faculty Of Sports And Human Sapporo International University
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Asai Hitoshi
Department Of Electrical Engineering Faculty Of Engineering Tohoku University
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Kunita Kenji
Research Center for Urban Health and Sports, Osaka City University
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Furune Naoe
Department of Human Movement and Health, Graduate School of Medical Science, Kanazawa University
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Tomita Hidehito
Department of Human Movement and Health, Graduate School of Medical Science, Kanazawa University
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FURUNE Naoe
Graduate School of Medical Science, Kanazawa University
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Maeda Kaoru
Department Of Physical Therapy Morinomiya University Of Medical Sciences
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Furune Naoe
Graduate School Of Medical Science Kanazawa University
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Kunita Kenji
Research Center For Urban Health And Sports Osaka City University
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Tomita Hidehito
Graduate School Of Medical Science Kanazawa University
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