THE INFLUENCE OF THE PEAKING TRAINING ON SALIVARY IGA SECRETION IN COLLEGE TRIATHLETE

• Published in: Annals of nutrition and metabolism 2017-10, Vol.71 (Suppl. 2), p.439
• Main Authors: Matsumoto, Megumi, Satoh, Kentaro, Kushi, Hidehiko, Hamuro, Koji, Sakurai, Masao, Saito, Hiroshi, Tanaka, Ryohei, Saito, Takao, Kohda, Noriyuki, Hamada, Koichiro
• Format: Article
• Language: English
• Subjects: Athletes; College students; Colleges & universities; Conditioning; Immune response; Immunity; Immunoglobulin A; Immunoglobulins; Moisture content; Mucosal immunity; Nutrition; Physical activity; Physical training; Race; Sports training; Students; Training; Triathlon; Water content; Water intake; Water intakes
• ISSN: 0250-6807; 1421-9697
• DOI: 10.1159/000480486

Background and objectives: Some triathletes often feel sick in conditioning period (peaking period) toward the race. The aim of this study is to consider the method of conditioning athletes by investigating the changes of the immunity through examining the variation of salivary IgA secretion. Methods: For the college students' triathletes of 33 males and 7 females who participate the race, the amount of salivary IgA about one month before the race were continuously measured. In addition, meal content and the amount of water intake and physical activity in the training were recorded and the relationship with salivary IgA secretion was evaluated. Results: No significant change in nutrition intake during the test period was observed. Significant high level of water intake was shown only on the race day. The average amount of physical activity a week of two to three weeks before the race was the highest as 744.7 ± 51.5 kcal/day, and that of one to two weeks before the race was 513.2 ± 28.5 kcal/day. That of last week before the race was 305.5 ± 29.9 kcal/day, and this value was significantly lower than the initial value (P