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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2019 Vol.38 No.4

Effect of Exercise Training and Detraining on Swimming Performance of Juvenile Percocypris pingi
Author of the article:LU Yan1, LI Maohua1, GAN Weixiong2, ZENG Rukui2, SONG Zhaobin1,3*
Author's Workplace:1. Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu 610065, China;
2. Yalong River Hydropower Development Company, Ltd., Chengdu 610015, China;
3. Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
Key Words:Percocypris pingi; exercise training; detraining; critical swimming speed; endurance time
Abstract:To investigate the effect of exercise training and detraining on swimming performance of juvenile Percocypris pingi, 480 fish (body mass=2.18 g±0.12 g, body length=5.33 cm±0.09 cm) were randomly divided into 4 groups (120 fish per group): control group (C), anaerobic training group (An), 4 body length (BL)·s-1 group (H) and 2 BL·s-1 group (L). H and L groups were trained 8 hours per day. All the groups were subjected to exercise training for 30 days and then detrained at 15 ℃±2 ℃. Critical swimming speed (Ucrit) and endurance time at 1.5Ucrit were measured at the beginning (T0), after 30 days of exercise training (T30), after 20 (DT20) and 50 (DT50) days of detraining. The results showed that the sustained exercise training induced a significant increase in aerobic and anaerobic swimming performance of juvenile P. pingi (P<0.05), while exhaustive chasing training only improved the anaerobic swimming performance. After 20 days of detraining, Ucrit of group L was greatly higher than that of groups An and C, while no statistically significant difference was detected between groups An, H and C. On the contrary, the endurance time (at 1.5Ucrit) of groups An and H was significantly greater than that of group C, while that of groups L and C was not significantly different with each other. After 50 days of detraining, there was no significant difference in Ucrit and endurance time (at 1.5Ucrit) between the training and control groups. Therefore, exercise training significantly improved the aerobic and anaerobic swimming performance of juvenile P. pingi, whereas the improvement and maintenance of exercise training varied in different training modes.
2019,38(4): 361-367 收稿日期:2019-02-12
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