Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention
Repetitive passive movement (PM) affects corticospinal excitability; however, it is unknown whether a duty cycle which repeats movement and rest, or subjects’ conscious attention to movements, affects corticospinal excitability. We aimed to clarify the effect of the presence or absence of a duty cyc...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2019-03-01
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| Series: | Frontiers in Behavioral Neuroscience |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fnbeh.2019.00038/full |
| _version_ | 1819019977791897600 |
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| author | Shota Tsuiki Shota Tsuiki Ryoki Sasaki Manh Van Pham Shota Miyaguchi Sho Kojima Kei Saito Yasuto Inukai Naofumi Otsuru Hideaki Onishi |
| author_facet | Shota Tsuiki Shota Tsuiki Ryoki Sasaki Manh Van Pham Shota Miyaguchi Sho Kojima Kei Saito Yasuto Inukai Naofumi Otsuru Hideaki Onishi |
| author_sort | Shota Tsuiki |
| collection | DOAJ |
| description | Repetitive passive movement (PM) affects corticospinal excitability; however, it is unknown whether a duty cycle which repeats movement and rest, or subjects’ conscious attention to movements, affects corticospinal excitability. We aimed to clarify the effect of the presence or absence of a duty cycle and subjects’ attention on corticospinal excitability. Three experiments were conducted. In Experiment 1, PM of the right index finger was performed for 10 min. Three conditions were used: (1) continuous PM (cPM) at a rate of 40°/s; (2) intermittent PM (iPM) with a duty cycle at 40°/s; and (3) iPM at 100°/s. In conditions 1 and 3, motor evoked potential (MEP) amplitude was significantly reduced. In Experiment 2, PM was performed for 30 min: condition 1 comprised cPM at a rate of 40°/s and Condition 2 comprised iPM at 40°/s. MEP amplitude significantly decreased in both conditions. In Experiment 3, PM was performed for 10 min: condition 1 comprised paying attention to the moving finger during iPM and Condition 2 was similar to Condition 1 but while counting images on a monitor without looking at the movement finger, and Condition 3 comprised counting images on a monitor without performing PM. MEP amplitude significantly increased only under Condition 1. Thus, afferent input from movements above a certain threshold may affect corticospinal excitability reduction. Furthermore, corticospinal excitability increases when paying attention to passive finger movement. |
| first_indexed | 2024-12-21T03:43:53Z |
| format | Article |
| id | doaj.art-495e5bff9f5c44b1ace018fd6b2f0450 |
| institution | Directory Open Access Journal |
| issn | 1662-5153 |
| language | English |
| last_indexed | 2024-12-21T03:43:53Z |
| publishDate | 2019-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Behavioral Neuroscience |
| spelling | doaj.art-495e5bff9f5c44b1ace018fd6b2f04502022-12-21T19:17:09ZengFrontiers Media S.A.Frontiers in Behavioral Neuroscience1662-51532019-03-011310.3389/fnbeh.2019.00038418969Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject AttentionShota Tsuiki0Shota Tsuiki1Ryoki Sasaki2Manh Van Pham3Shota Miyaguchi4Sho Kojima5Kei Saito6Yasuto Inukai7Naofumi Otsuru8Hideaki Onishi9Rehabilitation Center of Shiobara Hot Spring Hospital, Tochigi Medical Association, Tochigi, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanInstitute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, JapanRepetitive passive movement (PM) affects corticospinal excitability; however, it is unknown whether a duty cycle which repeats movement and rest, or subjects’ conscious attention to movements, affects corticospinal excitability. We aimed to clarify the effect of the presence or absence of a duty cycle and subjects’ attention on corticospinal excitability. Three experiments were conducted. In Experiment 1, PM of the right index finger was performed for 10 min. Three conditions were used: (1) continuous PM (cPM) at a rate of 40°/s; (2) intermittent PM (iPM) with a duty cycle at 40°/s; and (3) iPM at 100°/s. In conditions 1 and 3, motor evoked potential (MEP) amplitude was significantly reduced. In Experiment 2, PM was performed for 30 min: condition 1 comprised cPM at a rate of 40°/s and Condition 2 comprised iPM at 40°/s. MEP amplitude significantly decreased in both conditions. In Experiment 3, PM was performed for 10 min: condition 1 comprised paying attention to the moving finger during iPM and Condition 2 was similar to Condition 1 but while counting images on a monitor without looking at the movement finger, and Condition 3 comprised counting images on a monitor without performing PM. MEP amplitude significantly increased only under Condition 1. Thus, afferent input from movements above a certain threshold may affect corticospinal excitability reduction. Furthermore, corticospinal excitability increases when paying attention to passive finger movement.https://www.frontiersin.org/article/10.3389/fnbeh.2019.00038/fullrepetitive passive movementduty cycleconscious attentionmotor evoked potentialcorticospinal excitability |
| spellingShingle | Shota Tsuiki Shota Tsuiki Ryoki Sasaki Manh Van Pham Shota Miyaguchi Sho Kojima Kei Saito Yasuto Inukai Naofumi Otsuru Hideaki Onishi Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention Frontiers in Behavioral Neuroscience repetitive passive movement duty cycle conscious attention motor evoked potential corticospinal excitability |
| title | Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention |
| title_full | Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention |
| title_fullStr | Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention |
| title_full_unstemmed | Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention |
| title_short | Repetitive Passive Movement Modulates Corticospinal Excitability: Effect of Movement and Rest Cycles and Subject Attention |
| title_sort | repetitive passive movement modulates corticospinal excitability effect of movement and rest cycles and subject attention |
| topic | repetitive passive movement duty cycle conscious attention motor evoked potential corticospinal excitability |
| url | https://www.frontiersin.org/article/10.3389/fnbeh.2019.00038/full |
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