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Training Effects on Immune Function in Judoists.

Namju Lee1, Jongkyu Kim2, Gu Am Hyung3

  • 1Department of Sports Health Medicine, College of Health Science, Jungwon University, Goesan-gun, Republic of Korea.

Asian Journal of Sports Medicine
|October 9, 2015
PubMed
Summary
This summary is machine-generated.

Elite judoists undergoing interval training showed improved fitness and increased physiological stress during winter off-season training. All training groups experienced a trend of reduced immunoglobulin A (IgA) levels without significant differences between methods.

Keywords:
ImmunoglobulinsPhysical FitnessTraining

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Area of Science:

  • Sports Science
  • Exercise Physiology
  • Immunology

Background:

  • High-intensity, long-term training in elite athletes may elevate the risk of immune dysfunction.
  • Understanding the impact of off-season training on athlete health is crucial for performance.

Purpose of the Study:

  • To investigate the effects of different training regimens on immunoglobulin levels.
  • To assess changes in physiological stress and physical fitness during a 12-week winter training period for elite judoists.
  • To examine the influence of cold stress on these physiological markers.

Main Methods:

  • Twenty-nine male judoists were divided into three groups: Judo training (CG), resistance training with Judo (RJ), and interval training with Judo (IJ).
  • Blood samples were analyzed for immunoglobulin A (IgA), immunoglobulin G (IgG), and immunoglobulin M (IgM), albumin, and catecholamines.
  • Measurements were taken at rest, immediately post-exercise, and during recovery.

Main Results:

  • Interval training (IJ) significantly improved VO2max and anaerobic mean power, while resistance training (RJ) enhanced anaerobic power compared to the control group (CG).
  • Significant changes in epinephrine and norepinephrine levels were observed across groups and time points, indicating increased physiological stress.
  • All groups exhibited a trend of decreasing IgA levels, but no significant differences were found between training protocols.

Conclusions:

  • Interval training during the winter off-season effectively enhances physical fitness in elite judoists.
  • The training protocols induced physiological stress, evidenced by catecholamine responses.
  • While IgA levels tended to decrease across all training groups, the specific training methods did not differentially impact this immune marker.