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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Swimming and morphology of skeletal muscle repair process after cryoinjury

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Author(s):
Paulo Roberto Dantas Pestana [1] ; Kristianne Porta Santos Fernandes [2] ; Caio Sain Vallio [3] ; Dayanne Aparecida Mesquita Rocha [4] ; Manoela Domingues Martins [5] ; Sandra Kalil Bussadori [6] ; Raquel Agnelli Mesquita-Ferrari [7]
Total Authors: 7
Affiliation:
[1] Universidade Nove de Julho (UNINOVE) - Brasil
[2] UNINOVE - Brasil
[3] UNINOVE - Brasil
[4] Universidade Nove de Julho (UNINOVE) - Brasil
[5] Universidade Federal do Rio Grande do Sul (UFRGS). Departamento de Odontologia Conservadora - Brasil
[6] UNINOVE - Brasil
[7] UNINOVE - Brasil
Total Affiliations: 7
Document type: Journal article
Source: Fisioter. Pesqui.; v. 18, n. 3, p. 264-269, 2011-09-00.
Abstract

The aim of study was investigate the influence of swimming on the morphological changes in skeletal muscle repair process following cryoinjury. There were used 45 rats divided into 5 groups: control (n=5), sham (n=5), adaptation (n=5), cryolesioned treated with swimming and sacrificed after 7, 14 and 21 days (n=15), untreated and cryolesioned sacrificed after 7, 14, and 21 days (n=15). Animals swan for 90 min/ each session and 6 times a week. At the end of the protocol, the animals were sacrificed and morphological analysis of the lesion area was performed. The semi-quantitative morphological analysis showed that the muscles in the control group exhibited normal histological aspects while the sham group exhibited edema, myonecrosis and inflammatory infiltrate grade 1. In groups 7, 14, and 21 days, the results indicated that there were no statistically significant differences in four stages of tissue remodeling evaluated (inflammatory infiltration, edema, necrosis, and immature muscle fibers) between the injured groups compared to groups with lesion and treated with swimming. In conclusion, it was verified that swimming did not alter morphological aspects of skeletal muscle during the repair process following cryoinjury. (AU)