태권도 선수의 4주간의 운동 훈련 중에 상기도 감염증의 이환과 타액 분비형 면역 글로불린 A의 변화와의 관련성
The Relationship Between Appearance of Upper Respiratory Tract Infection and Changes in Salivary IgA Secretion during Exercise Training of 4 Weeks in Taekwondo Players
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초록
이 연구는 남자 대학생 태권도선수를 대상(n=31)으로 4주간의 운동 훈련 기간 중에 상기도 감염증의 이환과 타액 분비형 면역 글로불린 A의 변화와의 관련성을 검토하는데 그 목적을 두었다. 타액 채취는 운동 훈련 시작 전(before), 1주일 후(1w), 2주일 후(2w), 3주일 후(3w) 및 4주일 후(4w)에 각각 수집하였으며, URTI에 이환된 피험자는 이환 직후 타액을 추가로 수집하였다. 타액 분비속도는 운동 훈련 전과 운동 훈련 후에, 그리고 비이환자와 이환자 간의 비교에서 어느 시간대에서도 통계적으로 유의한 차이를 나타내지 않았다. 그러나 이환자의 SIgA의 농도는 운동 훈련전과 비교해서 운동 훈련 4주후에 유의하게 낮게 나타났으며(p<.05), SIgA의 분비속도는 운동 훈련전과 비교해서 운동 훈련 3주 및 4주후에 유의하게 낮게 나타났다(p<.05). 또한, 이환자의 SIgA 농도 및 SIgA 분비속도는 비이환자와 비교해서 운동 훈련 1, 2, 3 및 4주 후에 각각 유의하게 낮게 나타났다(p<.05). 이상의 결과, 이 연구에서는 URTI에 이환은 SIgA의 수준의 변화와 밀접한 관련성이 있다는 것을 확인 하였으며, SIgA 수준은 운동선수의 컨디션 평가에 유용하다는 것이 시사되었다.
Abstract
This study investigated the relationship between appearance of upper respiratory tract infection and changes in salivary IgA secretion in male collegiate Taekwondo players (n=31) during exercise training of 4 weeks. Saliva samples were collected before and 1, 2, 3, and 4 weeks after exercise training. In addition, the saliva samples were collected immediately after appeared by URTI symptoms. The changes in Saliva flow rate were not significantly different at time course, and between appearance and non-appearance subjects. However, SIgA concentration in appearance subjects was decreased significantly after 4 weeks of exercise training (p<.05). Similarly, SIgA secretion rate in appearance subjects was decreased significantly after 3 and 4 weeks of exercise training (p<.05). Moreover, SIgA concentration and SIgA secretion rate in appearance subjects were decreased significantly after 1, 2, 3, and 4 weeks of exercise training compared with non-appearance subjects (p<.05). It was confirmed in this study that appearance of URTI may closely correlate with changed SIgA levels, and suggested that SIgA levels may be useful for condition assessment of athletes.
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