Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy
To evaluate the influence of the number of muscles and strides on estimating motor control accuracy during treadmill-gait, in individuals with cerebral palsy (CP). Bilateral lower limb electromyography data were extracted for 44 children/adolescents with CP. The number of synergy solutions required...
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| Veröffentlicht in: | Journal of electromyography and kinesiology 2022-10, Vol.66, p.102697-102697, Article 102697 |
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| container_title | Journal of electromyography and kinesiology |
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| creator | Sorek, Gilad Goudriaan, Marije Schurr, Itai Schless, Simon-Henri |
| description | To evaluate the influence of the number of muscles and strides on estimating motor control accuracy during treadmill-gait, in individuals with cerebral palsy (CP).
Bilateral lower limb electromyography data were extracted for 44 children/adolescents with CP. The number of synergy solutions required to explain 90 % of the variance (tVAF-threshold) and the total variance accounted for by one synergy (tVAF1) were calculated for a different number of strides (between 5 and 50) and muscles both unilaterally (four to seven) and bilaterally (eight to 14). The kappa and intraclass correlation coefficients were used to assess similarities in tVAF-threshold and tVAF1 between the different number of strides and muscle sets.
In both analyses, the number of muscles influenced the tVAF-threshold. Additionally, using |
| doi_str_mv | 10.1016/j.jelekin.2022.102697 |
| format | Article |
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Bilateral lower limb electromyography data were extracted for 44 children/adolescents with CP. The number of synergy solutions required to explain 90 % of the variance (tVAF-threshold) and the total variance accounted for by one synergy (tVAF1) were calculated for a different number of strides (between 5 and 50) and muscles both unilaterally (four to seven) and bilaterally (eight to 14). The kappa and intraclass correlation coefficients were used to assess similarities in tVAF-threshold and tVAF1 between the different number of strides and muscle sets.
In both analyses, the number of muscles influenced the tVAF-threshold. Additionally, using <30 strides led to only substantial-moderate agreement with 50 strides (k < 0.80). In both analyses, the mean tVAF1 values demonstrated high-agreement between the different number of muscles (intraclass-correlations = 0.88–0.93) and strides (intraclass-correlations = 0.96–0.99); In the group level, it may result in an error of ≤2.3 %. However, in the individual level, using different number of muscles or <40 strides may result in an error of ≥6 %.
Differing numbers of muscles and strides did not influence the group mean tVAF1 value, but it influenced the tVAF-threshold value. In addition, using different number of muscles or strides can lead to a large measurement error in the individual tVAF1 value.</description><identifier>ISSN: 1050-6411</identifier><identifier>EISSN: 1873-5711</identifier><identifier>DOI: 10.1016/j.jelekin.2022.102697</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Cerebral Palsy ; Electromyography ; Gait ; Muscle Synergies ; Reliability</subject><ispartof>Journal of electromyography and kinesiology, 2022-10, Vol.66, p.102697-102697, Article 102697</ispartof><rights>2022 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c389t-67029acce4bc941fc51128ec9bb9486ccdfb9301549bc1dcbcecf42714b750e73</citedby><cites>FETCH-LOGICAL-c389t-67029acce4bc941fc51128ec9bb9486ccdfb9301549bc1dcbcecf42714b750e73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jelekin.2022.102697$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Sorek, Gilad</creatorcontrib><creatorcontrib>Goudriaan, Marije</creatorcontrib><creatorcontrib>Schurr, Itai</creatorcontrib><creatorcontrib>Schless, Simon-Henri</creatorcontrib><title>Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy</title><title>Journal of electromyography and kinesiology</title><description>To evaluate the influence of the number of muscles and strides on estimating motor control accuracy during treadmill-gait, in individuals with cerebral palsy (CP).
Bilateral lower limb electromyography data were extracted for 44 children/adolescents with CP. The number of synergy solutions required to explain 90 % of the variance (tVAF-threshold) and the total variance accounted for by one synergy (tVAF1) were calculated for a different number of strides (between 5 and 50) and muscles both unilaterally (four to seven) and bilaterally (eight to 14). The kappa and intraclass correlation coefficients were used to assess similarities in tVAF-threshold and tVAF1 between the different number of strides and muscle sets.
In both analyses, the number of muscles influenced the tVAF-threshold. Additionally, using <30 strides led to only substantial-moderate agreement with 50 strides (k < 0.80). In both analyses, the mean tVAF1 values demonstrated high-agreement between the different number of muscles (intraclass-correlations = 0.88–0.93) and strides (intraclass-correlations = 0.96–0.99); In the group level, it may result in an error of ≤2.3 %. However, in the individual level, using different number of muscles or <40 strides may result in an error of ≥6 %.
Differing numbers of muscles and strides did not influence the group mean tVAF1 value, but it influenced the tVAF-threshold value. In addition, using different number of muscles or strides can lead to a large measurement error in the individual tVAF1 value.</description><subject>Cerebral Palsy</subject><subject>Electromyography</subject><subject>Gait</subject><subject>Muscle Synergies</subject><subject>Reliability</subject><issn>1050-6411</issn><issn>1873-5711</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkMFu2zAMho1iBZq1fYQCOu7iTFRsyzoNQ7B1AQLssp0Fi6JbpbaUSXK2vn0VpPcBBEj--EmCX1U9AF8Dh-7zYX2giV6cXwsuRNFEp-RVtYJebupWAnwoNW953TUAN9XHlA6cg-Q9X1X_dn6cFvJILIwsPxPzy2wonrt5SThRYoO3LOXobKmDZ6kcw-xOxOaQQ2QYfI5hYnaJzj-xp8Fl5nwJ607OLsOU2F-XnxlSJBOHiR2L9HpXXY8l0_17vq1-f__2a_uj3v983G2_7mvc9CrXneRCDYjUGFQNjNgCiJ5QGaOavkO0o1EbDm2jDIJFg4RjIyQ0Rrac5Oa2-nTZe4zhz0Ip69klpGkaPIUlaSG57KBToivW9mLFGFKKNOpjdPMQXzVwfSatD_qdtD6T1hfSZe7LZY7KHydHUSd0Z6TWxUJK2-D-s-ENExmMmw</recordid><startdate>202210</startdate><enddate>202210</enddate><creator>Sorek, Gilad</creator><creator>Goudriaan, Marije</creator><creator>Schurr, Itai</creator><creator>Schless, Simon-Henri</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>202210</creationdate><title>Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy</title><author>Sorek, Gilad ; Goudriaan, Marije ; Schurr, Itai ; Schless, Simon-Henri</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-67029acce4bc941fc51128ec9bb9486ccdfb9301549bc1dcbcecf42714b750e73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Cerebral Palsy</topic><topic>Electromyography</topic><topic>Gait</topic><topic>Muscle Synergies</topic><topic>Reliability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sorek, Gilad</creatorcontrib><creatorcontrib>Goudriaan, Marije</creatorcontrib><creatorcontrib>Schurr, Itai</creatorcontrib><creatorcontrib>Schless, Simon-Henri</creatorcontrib><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of electromyography and kinesiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sorek, Gilad</au><au>Goudriaan, Marije</au><au>Schurr, Itai</au><au>Schless, Simon-Henri</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy</atitle><jtitle>Journal of electromyography and kinesiology</jtitle><date>2022-10</date><risdate>2022</risdate><volume>66</volume><spage>102697</spage><epage>102697</epage><pages>102697-102697</pages><artnum>102697</artnum><issn>1050-6411</issn><eissn>1873-5711</eissn><abstract>To evaluate the influence of the number of muscles and strides on estimating motor control accuracy during treadmill-gait, in individuals with cerebral palsy (CP).
Bilateral lower limb electromyography data were extracted for 44 children/adolescents with CP. The number of synergy solutions required to explain 90 % of the variance (tVAF-threshold) and the total variance accounted for by one synergy (tVAF1) were calculated for a different number of strides (between 5 and 50) and muscles both unilaterally (four to seven) and bilaterally (eight to 14). The kappa and intraclass correlation coefficients were used to assess similarities in tVAF-threshold and tVAF1 between the different number of strides and muscle sets.
In both analyses, the number of muscles influenced the tVAF-threshold. Additionally, using <30 strides led to only substantial-moderate agreement with 50 strides (k < 0.80). In both analyses, the mean tVAF1 values demonstrated high-agreement between the different number of muscles (intraclass-correlations = 0.88–0.93) and strides (intraclass-correlations = 0.96–0.99); In the group level, it may result in an error of ≤2.3 %. However, in the individual level, using different number of muscles or <40 strides may result in an error of ≥6 %.
Differing numbers of muscles and strides did not influence the group mean tVAF1 value, but it influenced the tVAF-threshold value. In addition, using different number of muscles or strides can lead to a large measurement error in the individual tVAF1 value.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.jelekin.2022.102697</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Cerebral Palsy Electromyography Gait Muscle Synergies Reliability |
| title | Influence of the number of muscles and strides on selective motor control during gait in individuals with cerebral palsy |
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