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Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
(Biochemistry, Immunology, Kinanthropometry, Neurology, Neurophysiology, Ophtalmology, Pharmacology, Phlebology, etc.)
Akimoto T. 1,2, Kim K. 6, Yamauchi R. 4, Izawa S. 2, Hong C. 6, Aizawa K. 1, Lee H. 5, Suzuki K. 2,3
1 Laboratory of Regenerative Medical Engineering, Center for Disease Biology and Integrative Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan;
2 Institute for Biomedical Engineering, Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, Tokyo, Japan;
3 Department of Physical Education, Keimyung University, Daegu, Korea;
4 Graduate School of Comprehensive Human Sciences, University of Tsukuba, Ibaraki, Japan;
5 School of Sports Science, Dankook University, Cheonan, Korea;
6 Faculty of Human Sciences, Waseda University, Saitama, Japan
AIM: The authors hypothesized that inconsistent SIgA response to exercise is caused by the different adaptative status of subjects to a cold environment. The purposes of the study were to examine whether moderate-intense exercise in a cold environment decreases SIgA and whether adaptation to a cold environment has any effect on SIgA. METHODS: Young male skaters, short track (N=9) and inline (N=10), participated in this study. All subjects cycled for 60 min at 65% V.O2max in cold (ambient temperature: 5±1 °C, relative humidity 41±9%) and thermoneutral (ambient temperature: 21±1 °C, relative humidity 35±5%) conditions. Saliva samples were collected as follows: before and after 1hour of environmental exposure; immediately, 30-min, 60-min and 120-min after the exercise.
RESULTS and CONCLUSIONS: Salivary SIgA and saliva flow rate decreased after the exercise in both groups only in thermoneutral conditions. The SIgA secretion rate did not decrease after moderate-high intensity exercise in a cold environment, and the SIgA response to exercise was not affected by the different adaptative status of subjects to the cold environment.