Physiological and leukocyte subset responses to exercise and cold exposure in cold-acclimatized skaters

Kim, Kijin, Suzuki, Katsuhiko, Peake, Jonathan, Ahn, Nayoung, Ogawa, Kishiko, Hong, Changbae, Kim, Sanghyun, Lee, Inseon and Park, Jongwook (2014) Physiological and leukocyte subset responses to exercise and cold exposure in cold-acclimatized skaters. Biology of Sport, 31 1: 39-48. doi:10.5604/20831862.1086731


Author Kim, Kijin
Suzuki, Katsuhiko
Peake, Jonathan
Ahn, Nayoung
Ogawa, Kishiko
Hong, Changbae
Kim, Sanghyun
Lee, Inseon
Park, Jongwook
Title Physiological and leukocyte subset responses to exercise and cold exposure in cold-acclimatized skaters
Journal name Biology of Sport   Check publisher's open access policy
ISSN 2083-1862
0860-021X
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.5604/20831862.1086731
Open Access Status DOI
Volume 31
Issue 1
Start page 39
End page 48
Total pages 10
Place of publication Warsaw, Poland
Publisher Institute of Sport
Collection year 2015
Language eng
Abstract We investigated physiological responses and changes in circulating immune cells following exercise in cold and thermoneutral conditions. Participants were short track skaters (n=9) who were acclimatized to cold conditions, and inline skaters (n=10) who were not acclimatized. All skaters were young, and skating at a recreational level three days per week for at least one year. Using a cross-over design, study variables were measured during 60 min of submaximal cycling (65% ·VO2max) in cold (ambient temperature: 5±1°C, relative humidity: 41±9%) and thermoneutral conditions (ambient temperature: 21±1°C, relative humidity: 35±5%). Heart rate, blood lactate and tympanic temperature were measured at rest, during exercise and recovery. Plasma cortisol, calprotectin and circulating blood cell numbers were measured before and after 60 min of cold or thermoneutral conditions, and during recovery from exercise. Heart rate was lower in both groups during exercise in cold versus thermoneutral conditions (P<0.05). The increase in total leukocytes during recovery was primarily due to an increase in neutrophils in both groups. The cold-acclimatized group activated neutrophils after exercise in cold exposure, whereas the non-acclimatized group activated lymphocyte and cortisol after exercise in cold exposure. Lymphocyte subsets significantly changed in both groups over time during recovery as compared to rest. Immediately after exercise in both groups, CD16+ and CD69+ cells were elevated compared to rest or before exercise in both conditions. Acclimatization to exercise in the cold does not appear to influence exercise-induced immune changes in cold conditions, with the possible exception of neutrophils, lymphocytes and cortisol concentration.
Keyword Exercise
Cold
Neutrophils
Lymphocyte subset
Cortisol
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Human Movement and Nutrition Sciences Publications
 
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