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Importance of optic flow for postural stability of male and female young adults
Purpose A feedback control process based on self-motion perception contributes to postural stability; however, little is known about the visual modulation of postural muscles. The aim of this study was to investigate the effect of optic flow stimuli, presented full field, in the peripheral and fovea...
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| Published in: | European journal of applied physiology 2014-01, Vol.114 (1), p.71-83 |
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| Main Authors: | , , , |
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| container_title | European journal of applied physiology |
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| creator | Raffi, Milena Piras, Alessandro Persiani, Michela Squatrito, Salvatore |
| description | Purpose
A feedback control process based on self-motion perception contributes to postural stability; however, little is known about the visual modulation of postural muscles. The aim of this study was to investigate the effect of optic flow stimuli, presented full field, in the peripheral and foveal visual field, on muscular activation. Then, we assessed the correlation between optic flow, muscle activity and body sway in male and female subjects.
Methods
We used surface electromyography (EMG) and stabilometry on 24 right-handed young adults. We recorded the bilateral activation of tibialis anterior, gastrocnemius medialis, biceps femoris and vastus medialis. EMG and center of pressure (COP) signals were acquired simultaneously. EMG signal amplitude was computed as root mean square normalized by baseline.
Results
We found a significant effect for muscles, gender and an interaction effect of muscle by gender (ANOVA,
p
|
| doi_str_mv | 10.1007/s00421-013-2750-4 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1490722794</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>3437389401</sourcerecordid><originalsourceid>FETCH-LOGICAL-c493t-dd9483472cfce76da3f1796365e8b1214b62378d4a9dc19fb06531bcc07b745e3</originalsourceid><addsrcrecordid>eNp1kE1LxDAQhoMouq7-AC8S8OKlmknSpjnK4sfCwl70HNI0WSptU5MW2X9v666LCJ5mYJ55Z3gQugJyB4SI-0gIp5AQYAkVKUn4EZoBZzLJGBXHhx7kGTqP8Z0QklPIT9EZ5ZASkbMZWi-bzodet8Zi77Dv-spgV_tP7HzAnY_9EHSNY6-Lqq767QQ1urZYtyV29rvd-qHdYF0OdR8v0InTdbSX-zpHb0-Pr4uXZLV-Xi4eVonhkvVJWUqeMy6occaKrNTMgZAZy1KbF0CBFxllIi-5lqUB6QqSpQwKY4goBE8tm6PbXW4X_MdgY6-aKhpb17q1fogKuCSCUiH5iN78Qd_9ENrxOwXpeFJKkU0U7CgTfIzBOtWFqtFhq4Coybba2VajbTXZVtPO9T55KBpbHjZ-9I4A3QFxHLUbG36d_jf1C9D1iQA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1563699764</pqid></control><display><type>article</type><title>Importance of optic flow for postural stability of male and female young adults</title><source>Springer Link</source><creator>Raffi, Milena ; Piras, Alessandro ; Persiani, Michela ; Squatrito, Salvatore</creator><creatorcontrib>Raffi, Milena ; Piras, Alessandro ; Persiani, Michela ; Squatrito, Salvatore</creatorcontrib><description>Purpose
A feedback control process based on self-motion perception contributes to postural stability; however, little is known about the visual modulation of postural muscles. The aim of this study was to investigate the effect of optic flow stimuli, presented full field, in the peripheral and foveal visual field, on muscular activation. Then, we assessed the correlation between optic flow, muscle activity and body sway in male and female subjects.
Methods
We used surface electromyography (EMG) and stabilometry on 24 right-handed young adults. We recorded the bilateral activation of tibialis anterior, gastrocnemius medialis, biceps femoris and vastus medialis. EMG and center of pressure (COP) signals were acquired simultaneously. EMG signal amplitude was computed as root mean square normalized by baseline.
Results
We found a significant effect for muscles, gender and an interaction effect of muscle by gender (ANOVA,
p
< 0.001). Results showed different postural alignments in males and females. The COP spatial variability during peripheral stimuli was generally reduced. The prevalent direction of oscillation evoked by peripheral stimuli was clustered, while foveal and random stimuli induced distributed and randomized directions. Also for muscle activity, we found gender differences in the prevalent oscillation distributions evoked by optic flow.
Conclusion
Visual stimuli always evoke an excitatory input on postural muscles, but the stimulus structure produces different postural effects. Peripheral optic flow stimuli stabilize postural sway, while random and foveal optic flow provoke larger sway variability similar to those evoked in the absence of visual stimulation.</description><identifier>ISSN: 1439-6319</identifier><identifier>EISSN: 1439-6327</identifier><identifier>DOI: 10.1007/s00421-013-2750-4</identifier><identifier>PMID: 24150783</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Adult ; Biomedical and Life Sciences ; Biomedicine ; Electromyography ; Female ; Females ; Gender differences ; Human Physiology ; Humans ; Kinematics ; Male ; Males ; Mechanical properties ; Muscle Contraction ; Muscle function ; Muscle, Skeletal - innervation ; Muscle, Skeletal - physiology ; Occupational Medicine/Industrial Medicine ; Optic Flow ; Original Article ; Postural Balance ; Posture ; Sex Factors ; Sports Medicine ; Young adults</subject><ispartof>European journal of applied physiology, 2014-01, Vol.114 (1), p.71-83</ispartof><rights>Springer-Verlag Berlin Heidelberg 2013</rights><rights>Springer-Verlag Berlin Heidelberg 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c493t-dd9483472cfce76da3f1796365e8b1214b62378d4a9dc19fb06531bcc07b745e3</citedby><cites>FETCH-LOGICAL-c493t-dd9483472cfce76da3f1796365e8b1214b62378d4a9dc19fb06531bcc07b745e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24150783$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Raffi, Milena</creatorcontrib><creatorcontrib>Piras, Alessandro</creatorcontrib><creatorcontrib>Persiani, Michela</creatorcontrib><creatorcontrib>Squatrito, Salvatore</creatorcontrib><title>Importance of optic flow for postural stability of male and female young adults</title><title>European journal of applied physiology</title><addtitle>Eur J Appl Physiol</addtitle><addtitle>Eur J Appl Physiol</addtitle><description>Purpose
A feedback control process based on self-motion perception contributes to postural stability; however, little is known about the visual modulation of postural muscles. The aim of this study was to investigate the effect of optic flow stimuli, presented full field, in the peripheral and foveal visual field, on muscular activation. Then, we assessed the correlation between optic flow, muscle activity and body sway in male and female subjects.
Methods
We used surface electromyography (EMG) and stabilometry on 24 right-handed young adults. We recorded the bilateral activation of tibialis anterior, gastrocnemius medialis, biceps femoris and vastus medialis. EMG and center of pressure (COP) signals were acquired simultaneously. EMG signal amplitude was computed as root mean square normalized by baseline.
Results
We found a significant effect for muscles, gender and an interaction effect of muscle by gender (ANOVA,
p
< 0.001). Results showed different postural alignments in males and females. The COP spatial variability during peripheral stimuli was generally reduced. The prevalent direction of oscillation evoked by peripheral stimuli was clustered, while foveal and random stimuli induced distributed and randomized directions. Also for muscle activity, we found gender differences in the prevalent oscillation distributions evoked by optic flow.
Conclusion
Visual stimuli always evoke an excitatory input on postural muscles, but the stimulus structure produces different postural effects. Peripheral optic flow stimuli stabilize postural sway, while random and foveal optic flow provoke larger sway variability similar to those evoked in the absence of visual stimulation.</description><subject>Adult</subject><subject>Biomedical and Life Sciences</subject><subject>Biomedicine</subject><subject>Electromyography</subject><subject>Female</subject><subject>Females</subject><subject>Gender differences</subject><subject>Human Physiology</subject><subject>Humans</subject><subject>Kinematics</subject><subject>Male</subject><subject>Males</subject><subject>Mechanical properties</subject><subject>Muscle Contraction</subject><subject>Muscle function</subject><subject>Muscle, Skeletal - innervation</subject><subject>Muscle, Skeletal - physiology</subject><subject>Occupational Medicine/Industrial Medicine</subject><subject>Optic Flow</subject><subject>Original Article</subject><subject>Postural Balance</subject><subject>Posture</subject><subject>Sex Factors</subject><subject>Sports Medicine</subject><subject>Young adults</subject><issn>1439-6319</issn><issn>1439-6327</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAQhoMouq7-AC8S8OKlmknSpjnK4sfCwl70HNI0WSptU5MW2X9v666LCJ5mYJ55Z3gQugJyB4SI-0gIp5AQYAkVKUn4EZoBZzLJGBXHhx7kGTqP8Z0QklPIT9EZ5ZASkbMZWi-bzodet8Zi77Dv-spgV_tP7HzAnY_9EHSNY6-Lqq767QQ1urZYtyV29rvd-qHdYF0OdR8v0InTdbSX-zpHb0-Pr4uXZLV-Xi4eVonhkvVJWUqeMy6occaKrNTMgZAZy1KbF0CBFxllIi-5lqUB6QqSpQwKY4goBE8tm6PbXW4X_MdgY6-aKhpb17q1fogKuCSCUiH5iN78Qd_9ENrxOwXpeFJKkU0U7CgTfIzBOtWFqtFhq4Coybba2VajbTXZVtPO9T55KBpbHjZ-9I4A3QFxHLUbG36d_jf1C9D1iQA</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Raffi, Milena</creator><creator>Piras, Alessandro</creator><creator>Persiani, Michela</creator><creator>Squatrito, Salvatore</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7RV</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>KB0</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope></search><sort><creationdate>20140101</creationdate><title>Importance of optic flow for postural stability of male and female young adults</title><author>Raffi, Milena ; Piras, Alessandro ; Persiani, Michela ; Squatrito, Salvatore</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c493t-dd9483472cfce76da3f1796365e8b1214b62378d4a9dc19fb06531bcc07b745e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Adult</topic><topic>Biomedical and Life Sciences</topic><topic>Biomedicine</topic><topic>Electromyography</topic><topic>Female</topic><topic>Females</topic><topic>Gender differences</topic><topic>Human Physiology</topic><topic>Humans</topic><topic>Kinematics</topic><topic>Male</topic><topic>Males</topic><topic>Mechanical properties</topic><topic>Muscle Contraction</topic><topic>Muscle function</topic><topic>Muscle, Skeletal - innervation</topic><topic>Muscle, Skeletal - physiology</topic><topic>Occupational Medicine/Industrial Medicine</topic><topic>Optic Flow</topic><topic>Original Article</topic><topic>Postural Balance</topic><topic>Posture</topic><topic>Sex Factors</topic><topic>Sports Medicine</topic><topic>Young adults</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Raffi, Milena</creatorcontrib><creatorcontrib>Piras, Alessandro</creatorcontrib><creatorcontrib>Persiani, Michela</creatorcontrib><creatorcontrib>Squatrito, Salvatore</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Proquest Nursing & Allied Health Source</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>ProQuest Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection (Proquest) (PQ_SDU_P3)</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Nursing & Allied Health Database (Alumni Edition)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Biological Science Database</collection><collection>Nursing & Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>MEDLINE - Academic</collection><jtitle>European journal of applied physiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Raffi, Milena</au><au>Piras, Alessandro</au><au>Persiani, Michela</au><au>Squatrito, Salvatore</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Importance of optic flow for postural stability of male and female young adults</atitle><jtitle>European journal of applied physiology</jtitle><stitle>Eur J Appl Physiol</stitle><addtitle>Eur J Appl Physiol</addtitle><date>2014-01-01</date><risdate>2014</risdate><volume>114</volume><issue>1</issue><spage>71</spage><epage>83</epage><pages>71-83</pages><issn>1439-6319</issn><eissn>1439-6327</eissn><abstract>Purpose
A feedback control process based on self-motion perception contributes to postural stability; however, little is known about the visual modulation of postural muscles. The aim of this study was to investigate the effect of optic flow stimuli, presented full field, in the peripheral and foveal visual field, on muscular activation. Then, we assessed the correlation between optic flow, muscle activity and body sway in male and female subjects.
Methods
We used surface electromyography (EMG) and stabilometry on 24 right-handed young adults. We recorded the bilateral activation of tibialis anterior, gastrocnemius medialis, biceps femoris and vastus medialis. EMG and center of pressure (COP) signals were acquired simultaneously. EMG signal amplitude was computed as root mean square normalized by baseline.
Results
We found a significant effect for muscles, gender and an interaction effect of muscle by gender (ANOVA,
p
< 0.001). Results showed different postural alignments in males and females. The COP spatial variability during peripheral stimuli was generally reduced. The prevalent direction of oscillation evoked by peripheral stimuli was clustered, while foveal and random stimuli induced distributed and randomized directions. Also for muscle activity, we found gender differences in the prevalent oscillation distributions evoked by optic flow.
Conclusion
Visual stimuli always evoke an excitatory input on postural muscles, but the stimulus structure produces different postural effects. Peripheral optic flow stimuli stabilize postural sway, while random and foveal optic flow provoke larger sway variability similar to those evoked in the absence of visual stimulation.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>24150783</pmid><doi>10.1007/s00421-013-2750-4</doi><tpages>13</tpages></addata></record> |
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| subjects | Adult Biomedical and Life Sciences Biomedicine Electromyography Female Females Gender differences Human Physiology Humans Kinematics Male Males Mechanical properties Muscle Contraction Muscle function Muscle, Skeletal - innervation Muscle, Skeletal - physiology Occupational Medicine/Industrial Medicine Optic Flow Original Article Postural Balance Posture Sex Factors Sports Medicine Young adults |
| title | Importance of optic flow for postural stability of male and female young adults |
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