Publicação
Hamstrings passive and active shear modulus : implications of conventional static stretching and warmup
| datacite.subject.fos | Ciências Médicas::Ciências da Saúde | |
| datacite.subject.sdg | 03:Saúde de Qualidade | |
| dc.contributor.author | Pimenta, Ricardo | |
| dc.contributor.author | Correia, José P. | |
| dc.contributor.author | Vaz, João R. | |
| dc.contributor.author | Veloso, António P. | |
| dc.contributor.author | Herzog, Walter | |
| dc.date.accessioned | 2026-04-01T11:53:54Z | |
| dc.date.available | 2026-04-01T11:53:54Z | |
| dc.date.issued | 2024-06 | |
| dc.description.abstract | Purpose: This study compares the acute effects of a static stretching and a warmup protocol on the active and passive shear modulus of the hamstring muscles. Methods: Muscle shear modulus was assessed at rest and during isometric contractions at 20 % of maximal voluntary isometric contraction (MVIC). Results: After stretching, the passive shear modulus pattern was not altered, while at 20 % MVIC the biceps femoris short head (BFsh) and semimembranosus showed a shear modulus increase and decrease, respectively, which resulted on BFsh-SM pair differences (pre: 3.8 ± 16.8 vs. post: 39.3 ± 25.1 kPa; p < 0.001; d = 1.66) which was accompanied by a decrease of 18.3 % on MVIC. Following the warmup protocol, passive shear modulus remained unchanged, while active shear modulus was decreased for the semitendinosus (pre: 65.3 ± 13.5 vs. post: 60.3 ± 12.3 kPa; p = 0.035; d = 0.4). However, this difference was within the standard error of measurement (10.54 kPa), and did not impact the force production, since it increased only 1.4 % after the warmup. Conclusions: The results of this study suggest that the passive and active shear modulus responses of the individual hamstring muscles to static stretching are muscle-specific and that passive and active hamstring shear modulus are not changed by a standard warmup intervention. | eng |
| dc.identifier.citation | Pimenta, R., Correia, J. P., Vaz, J. R., Veloso, A. P., & Herzog, W. (2024). Hamstrings passive and active shear modulus: Implications of conventional static stretching and warmup. Journal of science and medicine in sport, 27(6), 415–421. https://doi.org/10.1016/j.jsams.2024.02.006 | |
| dc.identifier.doi | 10.1016/j.jsams.2024.02.006 | |
| dc.identifier.issn | 1878-1861 | |
| dc.identifier.uri | http://hdl.handle.net/10400.26/62567 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | Elsevier | |
| dc.relation.hasversion | https://doi.org/10.1016/j.jsams.2024.02.006 | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Musculoskeletal ultrasound | |
| dc.subject | Shear wave elastography | |
| dc.subject | Shear modulus | |
| dc.subject | Exercise | |
| dc.subject | Lower extremity | |
| dc.title | Hamstrings passive and active shear modulus : implications of conventional static stretching and warmup | eng |
| dc.type | contribution to journal | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 421 | |
| oaire.citation.issue | 6 | |
| oaire.citation.startPage | 415 | |
| oaire.citation.title | Journal of Science and Medicine in Sport | |
| oaire.citation.volume | 27 | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 |