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Salivary immunoglobulin A response at rest and after exercise following a 48 h period of fluid and/or energy restriction


Reference:

Oliver, S. J., Laing, S. J., Wilson, S., Bilzon, J. L. J., Walters, R. and Walsh, N. P., 2007. Salivary immunoglobulin A response at rest and after exercise following a 48 h period of fluid and/or energy restriction. British Journal of Nutrition, 97 (6), pp. 1109-1116.

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Abstract

The aim was to investigate the effects of a 48 h period of fluid, energy or combined fluid and energy restriction on salivary IgA (s-IgA) responses at rest and after exercise. Thirteen healthy males (age 21 (SEM 1) years) participated in four randomised 48 h trials. In the control trial participants received their estimated energy (12 154 (SEM 230) kJ/d) and water (3912 (SEM 140) ml/d) requirements. On fluid restriction (FR) participants received their energy requirements and 193 (SEM 19) ml water/d to drink and on energy restriction (ER) participants received their water requirements and 1214 (SEM 25) kJ/d. Fluid and energy restriction (F + ER) was a combination of FR and ER. After 48 It, participants performed a 30 min treadmill time trial (TT) followed by rehydration (0-2 h) and refeeding (2-6 h). Unstimulated saliva was collected at 0, 24 and 48 h, post-TT, and 2 and 6h post-TT. Saliva flow rate (sflw) and s-IgA (ELISA) remained unchanged in control conditions and on ER. However, 48h on FR decreased sflw (64%) which most probably accounted for the increase in s-IgA concentration (P

Details

Item Type Articles
CreatorsOliver, S. J., Laing, S. J., Wilson, S., Bilzon, J. L. J., Walters, R. and Walsh, N. P.
DOI10.1017/s0007114507682919
DepartmentsFaculty of Humanities & Social Sciences > Health
RefereedYes
StatusPublished
ID Code6293
Additional InformationID number: ISI:000247530900013

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