期刊
FRONTIERS IN PHYSIOLOGY
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fphys.2018.00042
关键词
treadmill; incremental test; running; training programs; exercise test
类别
Purpose: To compare the efficiency of an aerobic physical training program prescribed according to either velocity associated with maximum oxygen uptake (vVO(2max)) or peak running speed obtained during an incremental treadmill test (V-peak_K) in mice. Methods: Twenty male Swiss mice, 60 days old, were randomly divided into two groups with 10 animals each: 1. group trained by vVO(2max) (GVO(2)), 2. group trained by V-peak_K (GVP). After the adaptation training period, an incremental test was performed at the beginning of each week to adjust training load and to determine the amount of VO2 and VCO2 fluxes consumed, energy expenditure (FE) and run distance during the incremental test. Mice were submitted to 4 weeks of aerobic exercise training of moderate intensity (velocity referring to 70% of vVO(2max) and V-peak_K) in a programmable treadmill. The sessions lasted from 30 to 40 min in the first week, to reach 60 min in the fourth week, in order to provide the mice with a moderate intensity exercise, totaling 20 training sessions. Results: Mice demonstrated increases in VO2max (ml.kg(-1).min(-1)) (GVO(2) = 49.1% and GVP = 56.2%), V-peak_K (CM'S 1) (GVO(2) = 50.9% and GVP = 22.3%), EE (ml.kg(-75).min(-1)) (GVO(2) = 39.9% and GVP = 51.5%), and run distance (cm) (GVO2 = 43.5% and GVP = 33.4%), after 4 weeks of aerobic training (time effect, P < 0.05); there were no differences between the groups. Conclusions: V-peak_K, as well as vVO(2max), can be adopted as an alternative test to determine the performance and correct prescription of systemized aerobic protocol training to mice.
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