The effect of exercising to exhaustion at different intensities on saliva immunoglobulin A, protein and electrolyte secretion

摘要: The quality and quantity of saliva may be important in defending against pathogens transmitted via the buccal cavity. aim present study was to examine effect cycling exhaustion at moderate high intensity on various salivary parameters time course recovery. Eighteen male subjects mixed physical fitness took part study. Subjects performed two bouts exercise separate occasions least one week apart. Following an overnight fast, cycled electrically braked cycle ergometer a work rate equivalent 80% VO2max until exhaustion. On another occasion they same 55% for 3 h or fatigue (whichever sooner). order rides randomised. Timed, unstimulated samples were collected pre-exercise, during exercise, cessation 1, 2.5, 5 24 post-exercise. Saliva analysed IgA, total protein osmolality. flow significantly reduced by (P < 0.01). IgA concentration, secretion ratio osmolality increased did not change exercise. Since 0.01) it appears that correcting loss water expressing relative is misleading. are more appropriate measures neither parameter lowered results this indicate detrimentally affect produced, but saliva. Furthermore, when exhaustion, bout does appear influence response. Neither protocol had any long term as all variables recovered within 1