Impacto da suplementação com óleo de chia sobre os aspectos comportamentais de ratos Wistar submetidos ao exercício físico regular.

Abstract

Regular physical exercise associated with eating habits have a close and critical importance for promoting health, in sports there are many factors used to improve performance. Among them is the Linolenic acid (omega-3), impact on various physiological functions and is characterized by having an effect on the nervous system and is the chia oil an important source of this fatty acid. Thus, the aim of the present research was to analyze the impact of a high fat diet with chia oil on possible behavioral changes of Wistar rats submitted or not to exercise regularly. Were used 40 male Wistar rats aged 60 days, weighing 250g ± 50g were divided into four groups: sedentary control (S-Control), exercised control (E-Control), chia sedentary (S-chia) and chia exercised (E -chia). The groups with chia oil received through the oil gavage at the ratio of 1ml / 100g weight, while other groups received distilled water in the same ratio. The practice of exercise consisted of treadmill running for 40 min at a speed of 21 (m / min) five times a week for four weeks. Two tests were performed: Open field test and maze test in Cruz High (LCE). On the Open field test, four parameters were analyzed: (1) ambulation, which was no statistical difference between the E-chia group (p <0.05) versus S-chia and S-control; and E-control (p <0.05) vs. S-chia. (2) rearing, the E-control and E-chia demonstrated significant difference (p <0.05) when compared to other sedentary groups, S-control and S-chia. (3) grooming, being observed that the S-chia group showed (P <0.05) when compared to the other groups chia E-chia,S-control and E-control. (4) defecation the E-control and S-control groups demonstrated (p <0.05) when compared to the other groups S-chia and E-chia, while the S-chia (p <0.05) compared to S-control. In the LCE test as the number of entries into the closed arms there was no statistical difference among the four groups; in relation to time spent in the closed arms there was a greater time spent by the animal of the S-control and S-chia groups (p <0.05) when compared to other E-control groups and E-chia. Regarding the number of entries in the open arms and length of stay the E-control group showed a significant difference (p <0.05) when compared to other S-control, S-chia and E-chia groups. As regards the stay time in the central area E-chia group showed significant result (p <0.05) and remained longer in the central area compared to all S-chia, E-control and S-control groups. The findings of this study show the effects of essential fatty acids on the functioning of the central nervous system, indicating no potentiator effect of exercise by supplementation in the reduction of anxiety.