Publication
Effect of unaccustomed eccentric exercise on proprioception of the knee in weight and non-weight bearing tasks
| dc.contributor.author | Vila-Chã, Carolina | |
| dc.contributor.author | Riis, Simone | |
| dc.contributor.author | Lund, Ditte | |
| dc.contributor.author | Møller, Anders | |
| dc.contributor.author | Farina, Dario | |
| dc.contributor.author | Falla, Deborah | |
| dc.date.accessioned | 2012-05-24T11:22:08Z | |
| dc.date.available | 2012-05-24T11:22:08Z | |
| dc.date.issued | 2011 | |
| dc.date.updated | 2012-02-23T15:56:48Z | |
| dc.description.abstract | The study investigates the effects of eccentric exercise of the quadriceps on proprioception of the knee in weight and non-weight bearing tasks. Proprioception of the exercised leg was assessed at 120 and 150 of knee extension in 15 healthy adults (age 25.0 ± 3.6 yrs) before, immediately after, and 24 h following eccentric exercise of the quadriceps. Three tests of proprioception were performed: 1. matching the position of the exercised leg (right leg) to the reference leg (left leg) in sitting (non-weight bearing matching task); 2. repositioning the exercised leg after active movement in sitting (non-weight bearing repositioning task); 3. repositioning the exercised leg after active movement in standing (weight bearing task). Maximum knee extension force was reduced by 77.0 ± 12.3 % immediately after the exercise, and by 82.7 ± 16.2% 24 h post exercise, with respect to baseline (P < 0.001). The absolute error in the non-weight bearing matching task at 120 of knee extension was greater immediately following eccentric exercise (12.3 ± 5.6, P < 0.001) and 24 h after exercise (8.1 ± 4.5, P < 0.05) compared to baseline (5.8 ± 2.7). Similarly, the absolute error in the non-weight bearing repositioning task at 120 was greater both immediately (5.9 ± 3.1 , P < 0.01) and 24 h post exercise (5.2 ± 3.0 , P < 0.05) compared to baseline (4.5 ± 2.6 ). Therefore, in both non-weight bearing tasks, the subjects matched the position of their leg after eccentric exercise by adopting a more extended knee position of the exercised limb. Furthermore, the subjects showed higher variability in their performance immediately post exercise (P < 0.05, compared to baseline) but not 24 h after. In contrast, eccentric exercise did not affect the repositioning errors in the weight bearing task. In conclusion, eccentric exercise of the quadriceps impairs proprioception of the knee both immediately after and 24 h post exercise, but only in non-weight bearing tasks. | por |
| dc.identifier.citation | Vila-Chã, Carolina; Riis, Simone; Lund, Ditte; Møller, Anders; Farina, Dario; Falla, Deborah (2011). Effect of unaccustomed eccentric exercise on proprioception of the knee in weight and non-weight bearing tasks. Journal of Electromyography and Kinesiology. ISSN 1050-6411. 21:1, p. 141-147 | por |
| dc.identifier.issn | 1050-6411 | |
| dc.identifier.uri | http://hdl.handle.net/10198/6977 | |
| dc.language.iso | eng | por |
| dc.publisher | Elsevier | por |
| dc.relation.ispartofseries | 21;1 | |
| dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S1050641110001604 | por |
| dc.subject | Exercício excêntrico | por |
| dc.subject | Propriocepção | por |
| dc.subject | Electromiografia | por |
| dc.title | Effect of unaccustomed eccentric exercise on proprioception of the knee in weight and non-weight bearing tasks | por |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 147 | por |
| oaire.citation.startPage | 141 | por |
| oaire.citation.title | Journal of Electromyography and Kinesiology | por |
| person.familyName | Vila-Chã | |
| person.givenName | Carolina | |
| person.identifier.orcid | 0000-0003-3891-357X | |
| person.identifier.scopus-author-id | 35079532100 | |
| rcaap.rights | openAccess | por |
| rcaap.type | article | |
| relation.isAuthorOfPublication | 2fd32019-b368-4f10-a577-a5b651c044c2 | |
| relation.isAuthorOfPublication.latestForDiscovery | 2fd32019-b368-4f10-a577-a5b651c044c2 |