Um método de quantificação de trabalho na familiarização a corrida em esteira para ratos wistars

Abstract

The present study aimed to verify the effects of individualization of familiarization with the ergometer on the ability of Wistar rats to perform an exhaustion test. For the study, 14 male Wistar rats obtained at 28 days of age were used. The animals had their weight measured every week. For the monitoring of growth until stabilization of the growth curve that occurred around 60 days of life. At 78 days of age, familiarization was initiated, followed by a periodization in block with two microcycles, one of shock and one of stabilization, being 5 days in the first block, two rest days followed by another 4 days in the second block. It was taking into account the body mass of each animal, a measure of effort intensity (treadmill speed) and a measure of effort volume (treadmill time). The standardization of effort intensity was calculated using the work to be performed by each animal on each day of absolute effort through the formula: T = M x G x V x T. where T = work in joule, M = mass, G = Force of gravity (9.81), V = speed in meters per second and T = time in seconds. So that the absolute effort, proposed for each animal (work) was always constant 400J, one day after the last day of adaptation the incremental maximal stress test (TIM) was done. It has been seen that it is important to familiarize the ergometer individually, and with the correct familiarization with load quantification, it is possible not only to work with a specific group, so that all animals can achieve maximum effort