Avaliação de parâmetros histomorfométricos em sóleos de ratos submetidos à remobilização por salto em meio aquático

Silva, Lígia Inez; Meireles, Anamaria; Nascimento, Cassiane Merigo do; Rocha, Bruno Pogorzelski; Rosa, Camila Thieime; Ribeiro, Lucinéia de Fátima Chasko; Brancalhão, Rose Meire Costa; Bertolini, Gladson Ricardo Flor

doi:10.1590/s1517-86922013000300015

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…In another study also reported that 21 days of treadmill exercise regained ratio fibers and their diameters, mainly downhill exercise protocols (CORNACHIONE, CAÇÃO-BENEDINI, SHIMANO et al, 2008). In our study besides swimming, jumping in water with overload, despite its intensity also did not produce differences in the variables, but even showed to be useful for the recovery of fiber diameter when the soleus was immobilized in a shortened position (SILVA, MEIRELES, NASCIMENTO et al, 2013).…”

Section: Discussionsupporting

confidence: 59%

“…The exercises are widely used in order to recover the hypotrophy after immobilization, such as muscle stretching (CAÇÃO-BENEDINI, RIBEIRO, GOMES et al, 2013;KONNO, ALVES, BERTOLINI et al, 2008;ARTIFON, FERRARI, CUNHA et al, 2012;CUNHA, NASCIMENTO, ARTIFON et al, 2012), electrical stimulation (CARVALHO, SHIMANO and PICADO, 2008), concentric (NATALI, SILVA, CIENA et al, 2008) and eccentric treadmill exercises (BENEDINI-ELIAS, MORGAN, CORNACHIONE et al, 2014), and the aquatic environment exploited both for swimming (VOLPI, CASAROLLI, PUDELL et al, 2008) and for jumping exercises (SILVA, MEIRELES, NASCIMENTO et al, 2013). However, when assessing the soleus muscle, usually is used protocol shortening, although significant advances have occurred in understanding the mechanisms involved in the development of atrophy in muscles immobilized in the shortened position, is still little explored when the muscle is immobilized in position elongated (KELLEHER, GORDON, KIMBALL et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

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Remobilization in aquatic medium of rat soleus immobilized in lengthening

et al. 2015

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Introduction: The aim of this study was to evaluate histomorphometrically two protocols of aquatic exercise on soleus of rats immobilized in dorsiflexion. Material and Methods: It was used 30 Wistar rats, randomly distributed in five groups: G1 -right hindlimb immobilized in maximum dorsiflexion, for 15 consecutive days, after this the animals were euthanized; G2 -also immobilized in maximum dorsiflexion, for 15 consecutive days, then the animals were freely remobilized; G3 -submitted to remobilization by free swim; G4 -submitted to remobilization with overload of 10% of body weight; G5 -remobilization by jumping in water with overload of 50% of body weight. The immobilization model used was made by plaster cast directly in the lower right limb of each animal. After removing the immobilization, the animals were submitted to remobilization for 10 days according to the group. At the end of the remobilization, the right and left soleus muscles were isolated, cleaned and weighed on an analytical balance, each muscle was sectioned longitudinally, and the medial part was used to evaluation of longitudinal parameters and the medial for cross-sectional assessment. Results: for the estimate of sarcomeres in series, muscular and sarcomere length there were not significant differences. For the muscle mass and fibers diameter there were difference between right and left soleus, but not for the groups. Conclusion: the used protocol of immobilization/remobilization was insufficient to cause changes in the overall longitudinal soleus, but the immobilization produced reduced mass and diameter of the fibers, which are not reversed with remobilization protocols.

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Section: Discussionsupporting

confidence: 59%

Section: Introductionmentioning

confidence: 99%

Remobilization in aquatic medium of rat soleus immobilized in lengthening

et al. 2015

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“…The analysis of the number of sarcomeres was performed using a light microscope (Olympus ® , BX60, Tokyo, Japan) at 40x magnification. Using this magnification, the images of the longitudinal muscle fibres were taken for further analysis utilizing the Image-Pro Plus 6.0 (Media Cybernetics ® , Silver Spring, USA) program (Silva et al, 2013).…”

Section: Methodsmentioning

confidence: 99%

Resistance exercise recovery morphology and AQP1 expression in denervated soleus muscle of Wistar rats

Lovison¹,

Vieira²,

Kunz³

et al. 2018

motricidade

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It was our objective to analyse the effects of resistance exercise (climbing steps), which was started in the acute phase, on the histomorphometry and the expression of aquaporin 1 (AQP1) in the soleus muscle after sciatic nerve injury in Wistar rats. Twenty-four adult rats were randomly divided into the following four groups, containing six animals each: control (G1); exercise (G2); injury (G3); and exercise with injury (G4). Three days after the compression of the sciatic nerve, the animals in G2 and G4 were submitted to resistance exercise for 21 non-consecutives days. The exercise was conducted in two series of 10 consecutive ascents of the ladder, with an additional weight of 100g and with an interval of 60 seconds between sets for rest. After this period, the animals were sacrificed, and the soleus muscle was processed. The number of blood capillaries in G3 was 65.7% and 76.86% higher when compared with the G2 and G4, respectively. The morphological analysis revealed muscle damage in G3, hypertrophy in G2 and significant improvement in the muscle in G4. The AQP1 was immunolocalized in the endothelium of blood capillaries present in the muscle fibres, with different expressions in the groups. Resistance exercise initiated in the acute phase was an effective therapeutic modality in the recovery of morphological aspects in the soleus muscle after denervation.

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“…Remobilization is essential for joint and muscle patterns to be restored (9)(10)(11). There are several techniques for the remobilization period, however, there is no unanimity as to the best form, nor regarding the necessary period of stimulation (4,10,(12)(13)(14)(15)(16)(17). One of these techniques is therapeutic ultrasound, which among its effects generates analgesic, anti-inflammatory, pro-repair and tissue regeneration action, in addition to improving vascularization, stimulating cell activity and protein synthesis, contributing to tissue reorganization (18)(19)(20).…”

Section: Introductionmentioning

confidence: 99%

Effect of Therapeutic Ultrasound on the Recovery of the Tibialis Anterior Muscle in Remobilized Wistar Rats after a Period of Immobilization: An Analysis Using the Pathological Index

Kufner Meassi,

de Souza Oliveira,

Pedroso de Oliveira

et al. 2024

Muscle Ligaments and Tendons J

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Avaliação de parâmetros histomorfométricos em sóleos de ratos submetidos à remobilização por salto em meio aquático

Abstract: Introduction: The muscular tissue is able to respond to stimuli such as immobilization that induces

Cited by 7 publications

References 26 publications

Remobilization in aquatic medium of rat soleus immobilized in lengthening

Remobilization in aquatic medium of rat soleus immobilized in lengthening

Resistance exercise recovery morphology and AQP1 expression in denervated soleus muscle of Wistar rats

Effect of Therapeutic Ultrasound on the Recovery of the Tibialis Anterior Muscle in Remobilized Wistar Rats after a Period of Immobilization: An Analysis Using the Pathological Index

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