| dc.contributor | Springer | es_CL |
| dc.contributor.author | Silvestre, Rony A. [Chile. Universidad Mayor. Facultad de Medicina] | es_CL |
| dc.contributor.author | Nosaka, Kazunori [Australia. Universidad Edith Cowan] | es_CL |
| dc.date.accessioned | 2018-09-07T13:04:14Z | |
| dc.date.available | 2018-09-07T13:04:14Z | |
| dc.date.issued | 2013 | es_CL |
| dc.identifier.citation | Penailillo, L., Silvestre, R., & Nosaka, K. (2013). Changes in surface EMG assessed by discrete wavelet transform during maximal isometric voluntary contractions following supramaximal cycling. European journal of applied physiology, 113(4), 895-904. | es_CL |
| dc.identifier.issn | ISSN 1439-6319 | es_CL |
| dc.identifier.issn | ESSN 1439-6327 | es_CL |
| dc.identifier.uri | https://link.springer.com/content/pdf/10.1007/s00421-012-2499-1.pdf | es_CL |
| dc.identifier.uri | https://doi.org/10.1007/s00421-012-2499-1 | es_CL |
| dc.identifier.uri | http://repositorio.umayor.cl/xmlui/handle/sibum/2650 | |
| dc.description.abstract | To better understand characteristics of neuromuscular fatigue in supramaximal cycling exercise, this study examined changes in surface electromyography (sEMG) frequency during maximal voluntary isometric contractions (MVC) following a 30-s Wingate anaerobic test (WAnT) using discrete wavelet transform (DWT). The changes in sEMG were also compared between DWT and mean frequency (MNF) obtained by fast Fourier transform (FFT). 17 healthy men performed a WAnT with a 7.5 % of body mass load. Knee extensor MVC torque was measured before and 1, 3, 6, 9, 12 and 15 min following WAnT, and sEMG was recorded from vastus lateralis muscle during the torque measures. sEMG was analysed for (RMS), MNF by FFT and frequency domains of DWT (divided into six domains). MVC torque decreased 21–23 % at 3–15 min, RMS increased 26–34 % at 1–15 min, and MNF decreased 8–10 % from baseline (76.3 ± 3.2 Hz) at 1–3 min post-cycling (P < 0.05). The DWT frequency domains showed that the changes lasted longer than MNF such that the intensity increased at 12 and 15 min for domain 2 (125–250 Hz), all time points for domain 3 (62.5–125 Hz), and 1–6 min for domains 4 (31.2–62.5 Hz) and 5 (15.6–31.2 Hz). The magnitude of increase in the intensity at 1 min post-exercise (45–60 %) was largest for domains 3 and 5 (P < 0.05). A significant correlation was evident only between the magnitude of changes in the domain 5 and MNF (r = −0.56). It is concluded that DWT provides information on neuromuscular fatigue that is not detected by MNF derived from FFT. | es_CL |
| dc.description.sponsorship | Este trabajo no contó con financiamiento. | es_CL |
| dc.format.extent | ARTÍCULO ORIGINAL | es_CL |
| dc.language.iso | en | es_CL |
| dc.publisher | CIENCIAS | es_CL |
| dc.rights | Attribution-NonCommercial-NoDerivs 3.0 Chile | es_CL |
| dc.subject | FISIOLOGÍA | es_CL |
| dc.title | Changes in surface EMG assessed by discrete wavelet transform during maximal isometric voluntary contractions following supramaximal cycling | es_CL |
| dc.type | Artículo o Paper | es_CL |
| umayor.indizador | COT | es_CL |
| umayor.politicas.sherpa/romeo | Licencia color: VERDE C/R (Se puede archivar el pre-print y el post-print o versión de editor/PDF, el autor no puede archivar la versión del editor/PDF)--Pre-print del autor: el autor puede archivar la versión pre-print (ie la versión previa a la revisión por pares). Postcript: el autor puede archivar la versión post-print (ie la versión final posterior a la revisión por pares), Versión de editor/PDF: cross el autor no puede archivar la versión del editor/PDF, Condiciones generales: Author's pre-print on pre-print servers such as arXiv.org, Author's post-print on author's personal website immediately, Author's post-print on any open access repository after 12 months after publication, La versión de editor/PDF no puede utilizarse, La fuente editorial debe reconocerse, Debe ir enlazado a la versión de editor, Set phrase to accompany link to published version (see policy), Los artículos de algunas revistas pueden hacerse de acceso abierto mediante el pago de una tarifa adicional// Disponible en: http://www.sherpa.ac.uk/romeo/issn/1439-6319/es/ | es_CL |
| umayor.indexado | WOS | es_CL |
| umayor.indexado | SCOPUS | es_CL |
| dc.identifier.doi | 10.1007/s00421-012-2499-1 | es_CL] |
| umayor.indicadores.wos-(cuartil) | Q3 | es_CL |
| umayor.indicadores.scopus-(scimago-sjr) | sin información | es_CL |