Training effects on immune function in judoists
(Trainingswirkungen auf die Immunfunktion bei Judoka)
Background: It has been reported that high intensity long term training in elite athletes may increase risk of immune function.
Objectives: This study is to examine training effects on immunoglobulin and changes of physiological stress and physical fitness level induced by increased cold stress during 12-week winter off-season training in elite Judoists.
Patients and Methods: Twenty-nine male participants (20 ± 1 years) were assigned to only Judo training (CG, n = 9), resistance training combined with Judo training (RJ, n = 10), and interval training combined with Judo training (IJ, n = 10). Blood samples collected at rest, immediately after all-out exercise, and 30-minute recovery period were analyzed for testing IgA, IgG, and IgM, albumin and catecholamine levels.
Results: VO2max and anaerobic mean power in IJ (P < 0.05) and anaerobic power in RJ (P < 0.05) were significantly increased after 12-week training compared to CG. There was no significant interaction effect (group × period) in albumin after 12-week training; however, there was a significant interaction effect (group × period) in epinephrine after 12-week training (F (4, 52) = 3.216, P = 0.002) and immediately after all-out exercise and at 30-minute recovery (F (2, 26) = 14.564, P = 0.008). There was significantly higher changes in epinephrine of RJ compared to IJ at 30-minute recovery (P = 0.045). There was a significant interaction effect (group × period) in norepinephrine after 12-week training (F (4, 52) = 8.141, P < 0.0001), at rest and immediately after all-out exercise (F (2, 26) = 9.570, P = 0.001), and immediately after all-out exercise and at 30-minute recovery (F (2, 26) = 8.862, P = 0.001).
Conclusions: Winter off-season training of IJ increased physical fitness level as well as physical stress induced by overtraining. Along with increased physical stress, all groups showed reduced trend of IgA; however, there was no group difference based on different training methods.
© Copyright 2015 Asian Journal of Sports Medicine. Tehran University of Medical Sciences, Sports Medicine Research Center. Alle Rechte vorbehalten.
Schlagworte: | Judo Immunität Sportphysiologie Trainingswirkung |
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Notationen: | Biowissenschaften und Sportmedizin Kampfsportarten |
Tagging: | Immunglobulin |
DOI: | 10.5812/asjsm.24050 |
Veröffentlicht in: | Asian Journal of Sports Medicine |
Veröffentlicht: |
2015
|
Jahrgang: | 6 |
Heft: | 3 |
Dokumentenarten: | Artikel |
Sprache: | Englisch |
Level: | hoch |