The morphological and functional effects of exercise in the aquatic environment, performed before and/or after sciatic nerve compression in Wistar rats
| Autor: | Rose Meire Costa Brancalhão, Lucinéia de Fátima Chasko Ribeiro, Jhenifer Karvat, Camila Mayumi Martin Kakihata, Gladson Ricardo Flor Bertolini, Jéssica Aline Malanotte |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Exercise therapy
Connective tissue Physical Therapy Sports Therapy and Rehabilitation medicine.disease_cause Lesion 03 medical and health sciences 0302 clinical medicine Jumping medicine Water environment Orthopedics and Sports Medicine Axon Physical therapy modalities business.industry Nervous tissue 030229 sport sciences Anatomy Sciatic nerve compression Nerve regeneration medicine.anatomical_structure nervous system Aquatic environment Original Article medicine.symptom business 030217 neurology & neurosurgery |
| Zdroj: | Journal of Exercise Rehabilitation |
| ISSN: | 2288-1778 2288-176X |
| DOI: | 10.12965/jer.1632670.335 |
| Popis: | The aim of this study was to evaluate the effects of exercise in the aquatic environment, performed before and/or after sciatic nerve compression in Wistar rats on morphological and functional parameters. Twenty-five Wistar rats were divided into the following groups: control (C), lesion (L), trained+lesion (TL), lesion+exercise (LE), and training+lesion+exercise (TLE), who underwent right sciatic nerve compression on day 21 of the experiment. The TL and TLE groups were submitted to a jumping exercise in a water environment for 20 days prior to injury and the LE and TLE groups after injury. The functional analysis was carried out using the sciatic functional index (SFI). On the last day of the experiment, the right sciatic nerves were collected, processed and analysed according to morphology and morphometry. The C group showed higher SFI in relation to the other groups. In the morphometric analysis, in comparison to C, all groups showed a decrease in the diameter of the injured nerve fibre, the myelin sheath and an increase in the percentage of connective tissue. There was a decrease in axon diameter in L, TL, and LE groups and a decrease in the density of nerve fibres in the TL and LE groups. The exercise did not affect functional recovery. However, the exercise prior to the injury improved morphology of the nervous tissue, and when performed pre- and postinjury, there was also an improvement in nerve regeneration, but this was not the case with exercise performed after the injury demonstrating worse results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|