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手関節の速い随意屈曲時に前腕筋に出現する三相性筋電図パターン : 高齢者と若年健康成人との比較
https://doi.org/10.15114/smj.60.547
https://doi.org/10.15114/smj.60.547b7a8e40d-b2ff-4a55-a0f0-040d6a754860
名前 / ファイル | ライセンス | アクション |
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n0036472X606547.pdf (798.1 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2019-07-31 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 手関節の速い随意屈曲時に前腕筋に出現する三相性筋電図パターン : 高齢者と若年健康成人との比較 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | The Triphasic Electromyographic Patterns Occurring in Forearm Muscles during Rapid Voluntary Wrist Flexion : Comparison between Elderly and Young Healthy Subjects | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Human subject | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Kinematics | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Triphasic EMG pattern | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Motor control | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Aging | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15114/smj.60.547 | |||||
ID登録タイプ | JaLC | |||||
著者 |
沢田, 雄二
× 沢田, 雄二 |
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著者別名 | ||||||
姓名 | Sawada, Yuji | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In order to investigate the influence of aging on the function of the central nervous system for movement control, the triphasic electromyographic (EMG) patterns associated with visu- ally guided step-tracking tasks were examined in elderly and young healthy subjects. Subjects were seated in an armchair opposite an oscilloscope on which a target line and a wrist angle line were displayed. They were asked to flex the wrist and match the wrist angle to the target at three different amplitudes of movements (10, 20 and 30 degrees) as fast as possible. The wrist positions were recorded with an electric goniometer attached to the wrist joint, and EMG activities were recorded with bipolor electrodes from the flexor carpi radialis and the extensor carpi radialis longus. The data obtained were analyzed using a signal processor after each experiment. The changes of triphasic EMG patterns associated with varying kinematic parameters of wrist movements are summarized as follows. 1. The movement trajectories of young subjects at each amplitude (10, 20 and 30 degrees) were relatively stable and reproducible, but the movement trajectories of elderly subjects fluctuated. The duration and the peak velocity of movement increased with movement amplitude. There were significant differences in the duration and the velocity of movements between young and elderly sub- jects. 2. As the movement amplitude was increased in young subjects, the duration of agonist EMG burst (Agl, S P and Ag2) from flexor muscles and the duration and delay of antagonist EMG burst (Ant) from extensor muscles did not change. 3. As the movement amplitude was increased in elderly subjects, the duration of Agl and delay of Ant tended to increase and the duration of the S-P tended to decrease. The following changes in elderly subjects occurred in comparison with young subjects : a) the duration of Agl increased at 30 degree amplitude ; b) the duration of Ant increased; c) the duration of Ag2 increased at 20 and 30 degrees ; d) the duration of S-P tend to decrease at 30 degrees ; and e) the delay of Ant decreased. 4. The amplitude of Agl increased and was correlated with the amplitude of movements in young and elderly subjects, but the amplitude of Ant did not increase. The elderly subjects showed some impaired movements and changes in the triphasic EMG pat- terns. These results indicate that aging may exert some influence on the function of the central nervous system for control of voluntary movements. | |||||
書誌情報 |
札幌医学雑誌 = The Sapporo medical journal en : The Sapporo medical journal 巻 60, 号 6, p. 547-557, 発行日 1991-12-01 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0036-472X | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 札幌医科大学医学部 |