Publicação
Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity
| Resumo: | Background: After incomplete spinal cord injury (iSCI), patients suffer important sensorimotor impairments, such as abnormal locomotion patterns and spasticity. Complementary to current clinical diagnostic procedures, the analysis of muscle synergies has emerged as a promising tool to study muscle coordination, which plays a major role in the control of multi-limb functional movements.Objective: Based on recent findings suggesting that walking and cycling share similar synergistic control, the analysis of muscle synergies during cycling might be explored as an early descriptor of gait-related impaired control. This idea was split into the following two hypotheses: (a) iSCI patients present a synergistic control of muscles during cycling; (b) muscle synergies outcomes extracted during cycling correlate with clinical measurements of gait performance and/or spasticity.Methods: Electromyographic (EMG) activity of 13 unilateral lower limb muscles was recorded in a group of 10 healthy individuals and 10 iSCI subjects during cycling at four different cadences. A non-negative matrix factorization (NNMF) algorithm was applied to identify synergistic components (i.e., activation coefficients and muscle synergy vectors). Reconstruction goodness scores (VAF and r(2)) were used to evaluate the ability of a given number of synergies to reconstruct the EMG signals. A set of metrics based on the similarity between pathologic and healthy synergies were correlated with clinical scales of gait performance and spasticity.Results: iSCI patients preserved a synergistic control of muscles during cycling. The similarity with the healthy reference was consistent with the degree of the impairment, i.e., less impaired patients showed higher similarities with the healthy reference. There was a strong correlation between reconstruction goodness scores at 42 rpm and motor performance scales (TUG, 10-m test and WISCI II). On the other hand, the similarity between the healthy and affected synergies presented correlation with some spasticity sym |
|---|---|
| Autores principais: | Barroso, Filipe O. |
| Outros Autores: | Torricelli, Diego; Bravo-Esteban, Elisabeth; Taylor, Julian; Gomez-Soriano, Julio; Santos, Cristina; Moreno, Juan C.; Pons, Jose L. |
| Assunto: | muscle synergies spinal cord injury cycling spasticity motor function |
| Ano: | 2016 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| _version_ | 1867439771894153216 |
|---|---|
| author | Barroso, Filipe O. |
| author2 | Torricelli, Diego Bravo-Esteban, Elisabeth Taylor, Julian Gomez-Soriano, Julio Santos, Cristina Moreno, Juan C. Pons, Jose L. |
| author2_role | author author author author author author author |
| author_facet | Barroso, Filipe O. Torricelli, Diego Bravo-Esteban, Elisabeth Taylor, Julian Gomez-Soriano, Julio Santos, Cristina Moreno, Juan C. Pons, Jose L. |
| author_role | author |
| contributor_name_str_mv | RepositóriUM - Universidade do Minho |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Barroso, Filipe O.\"},{\"Person.name\":\"Torricelli, Diego\"},{\"Person.name\":\"Bravo-Esteban, Elisabeth\"},{\"Person.name\":\"Taylor, Julian\"},{\"Person.name\":\"Gomez-Soriano, Julio\"},{\"Person.name\":\"Santos, Cristina\"},{\"Person.name\":\"Moreno, Juan C.\"},{\"Person.name\":\"Pons, Jose L.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | RepositóriUM - Universidade do Minho |
| datacite.creators.creator.creatorName.fl_str_mv | Barroso, Filipe O. Torricelli, Diego Bravo-Esteban, Elisabeth Taylor, Julian Gomez-Soriano, Julio Santos, Cristina Moreno, Juan C. Pons, Jose L. |
| datacite.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2018-03-09T18:41:34Z |
| datacite.date.embargoed.fl_str_mv | 2018-03-09T18:41:34Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | muscle synergies spinal cord injury cycling spasticity motor function |
| datacite.titles.title.fl_str_mv | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| dc.contributor.none.fl_str_mv | RepositóriUM - Universidade do Minho |
| dc.creator.none.fl_str_mv | Barroso, Filipe O. Torricelli, Diego Bravo-Esteban, Elisabeth Taylor, Julian Gomez-Soriano, Julio Santos, Cristina Moreno, Juan C. Pons, Jose L. |
| dc.date.Accepted.fl_str_mv | 2016-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2018-03-09T18:41:34Z |
| dc.date.embargoed.fl_str_mv | 2018-03-09T18:41:34Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | https://hdl.handle.net/1822/52005 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Frontiers Media |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | muscle synergies spinal cord injury cycling spasticity motor function |
| dc.title.fl_str_mv | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Background: After incomplete spinal cord injury (iSCI), patients suffer important sensorimotor impairments, such as abnormal locomotion patterns and spasticity. Complementary to current clinical diagnostic procedures, the analysis of muscle synergies has emerged as a promising tool to study muscle coordination, which plays a major role in the control of multi-limb functional movements.Objective: Based on recent findings suggesting that walking and cycling share similar synergistic control, the analysis of muscle synergies during cycling might be explored as an early descriptor of gait-related impaired control. This idea was split into the following two hypotheses: (a) iSCI patients present a synergistic control of muscles during cycling; (b) muscle synergies outcomes extracted during cycling correlate with clinical measurements of gait performance and/or spasticity.Methods: Electromyographic (EMG) activity of 13 unilateral lower limb muscles was recorded in a group of 10 healthy individuals and 10 iSCI subjects during cycling at four different cadences. A non-negative matrix factorization (NNMF) algorithm was applied to identify synergistic components (i.e., activation coefficients and muscle synergy vectors). Reconstruction goodness scores (VAF and r(2)) were used to evaluate the ability of a given number of synergies to reconstruct the EMG signals. A set of metrics based on the similarity between pathologic and healthy synergies were correlated with clinical scales of gait performance and spasticity.Results: iSCI patients preserved a synergistic control of muscles during cycling. The similarity with the healthy reference was consistent with the degree of the impairment, i.e., less impaired patients showed higher similarities with the healthy reference. There was a strong correlation between reconstruction goodness scores at 42 rpm and motor performance scales (TUG, 10-m test and WISCI II). On the other hand, the similarity between the healthy and affected synergies presented correlation with some spasticity sym |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorium.uminho.pt/bitstreams/f51f14ba-d5a0-4006-b884-cb82dbd27586/download |
| id | rum_bdfd4d9eb35791d73af20346e1b5c9db |
| identifier.url.fl_str_mv | https://hdl.handle.net/1822/52005 |
| instacron_str | repositorium |
| institution | Universidade do Minho |
| instname_str | Universidade do Minho |
| language | eng |
| network_acronym_str | rum |
| network_name_str | RepositóriUM - Universidade do Minho |
| oai_identifier_str | oai:repositorium.uminho.pt:1822/52005 |
| organization_str_mv | urn:organizationAcronym:repositorium |
| person_str_mv | Barroso, Filipe O. Torricelli, Diego Bravo-Esteban, Elisabeth Taylor, Julian Gomez-Soriano, Julio Santos, Cristina Moreno, Juan C. Pons, Jose L. |
| publishDate | 2016 |
| publisher.none.fl_str_mv | Frontiers Media |
| reponame_str | RepositóriUM - Universidade do Minho |
| repository_id_str | urn:repositoryAcronym:rum |
| service_str_mv | urn:repositoryAcronym:rum |
| spelling | engFrontiers MediaporBackground: After incomplete spinal cord injury (iSCI), patients suffer important sensorimotor impairments, such as abnormal locomotion patterns and spasticity. Complementary to current clinical diagnostic procedures, the analysis of muscle synergies has emerged as a promising tool to study muscle coordination, which plays a major role in the control of multi-limb functional movements.Objective: Based on recent findings suggesting that walking and cycling share similar synergistic control, the analysis of muscle synergies during cycling might be explored as an early descriptor of gait-related impaired control. This idea was split into the following two hypotheses: (a) iSCI patients present a synergistic control of muscles during cycling; (b) muscle synergies outcomes extracted during cycling correlate with clinical measurements of gait performance and/or spasticity.Methods: Electromyographic (EMG) activity of 13 unilateral lower limb muscles was recorded in a group of 10 healthy individuals and 10 iSCI subjects during cycling at four different cadences. A non-negative matrix factorization (NNMF) algorithm was applied to identify synergistic components (i.e., activation coefficients and muscle synergy vectors). Reconstruction goodness scores (VAF and r(2)) were used to evaluate the ability of a given number of synergies to reconstruct the EMG signals. A set of metrics based on the similarity between pathologic and healthy synergies were correlated with clinical scales of gait performance and spasticity.Results: iSCI patients preserved a synergistic control of muscles during cycling. The similarity with the healthy reference was consistent with the degree of the impairment, i.e., less impaired patients showed higher similarities with the healthy reference. There was a strong correlation between reconstruction goodness scores at 42 rpm and motor performance scales (TUG, 10-m test and WISCI II). On the other hand, the similarity between the healthy and affected synergies presented correlation with some spasticity symapplication/pdfporMuscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticityBarroso, Filipe O.Torricelli, DiegoBravo-Esteban, ElisabethTaylor, JulianGomez-Soriano, JulioSantos, CristinaMoreno, Juan C.Pons, Jose L.HostingInstitutionOrganizationalRepositóriUM - Universidade do Minhoe-mailmailto:repositorium@usdb.uminho.ptrepositorium@usdb.uminho.ptCITATIONBarroso FO, Torricelli D, Bravo-Esteban E, Taylor J, Gómez-Soriano J, Santos C, Moreno JC and Pons JL (2016) Muscle Synergies in Cycling after Incomplete Spinal Cord Injury: Correlation with Clinical Measures of Motor Function and Spasticity. Front. Hum. Neurosci. 9:706. doi: 10.3389/fnhum.2015.00706ISSNIsPartOf1662-5161DOIIsPartOf10.3389/fnhum.2015.007062018-03-09T18:41:34Z20162018-03-09T15:41:48Z2016-01-01T00:00:00ZHandlehttps://hdl.handle.net/1822/52005http://purl.org/coar/access_right/c_abf2open accessmuscle synergiesspinal cord injurycyclingspasticitymotor function3172909 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorium.uminho.pt/bitstreams/f51f14ba-d5a0-4006-b884-cb82dbd27586/download |
| spellingShingle | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity Barroso, Filipe O. muscle synergies spinal cord injury cycling spasticity motor function |
| status | SINGLETON |
| subject.fl_str_mv | muscle synergies spinal cord injury cycling spasticity motor function |
| title | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| title_full | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| title_fullStr | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| title_full_unstemmed | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| title_short | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| title_sort | Muscle synergies in cycling after incomplete spinal cord injury: correlation with clinical measures of motor function and spasticity |
| topic | muscle synergies spinal cord injury cycling spasticity motor function |
| topic_facet | muscle synergies spinal cord injury cycling spasticity motor function |
| url | https://hdl.handle.net/1822/52005 |
| visible | 1 |