Effect of Processed Soybeans (Tofu and Tempeh) Consumption, and Exercise on Upper Respiratory Tract Immunity

Background: IgA is widely used as Upper Respiratory Tract Infection (URTI) risk marker, as a lower concentration in sIgA indicates a higher incidence of URTI. This study aimed to investigate the effect of different types of exercise; combined with Tempeh consumption in increasing sIgA concentration in saliva sample. Methods: ۱۹ sedentary male subjects aged ۲۰-۲۳ were recruited and assigned into ۲ groups based on the exercise type, endurance (n=۹), and resistance (n=۱۰). These subjects underwent ۲ weeks of Tofu and Tempeh consumption, then were assigned to do exercises based on their groups. Results: This study showed an increased mean value of sIgA concentrations in the endurance group; the baseline value, after food treatment, and after food and exercise treatment were ۷۱.۷۲۶ ng/mL, ۷۳.۲۶۶ ng/mL, and ۷۳.۹۲۱ ng/mL, respectively for Tofu treatment; and ۷۱.۷۲۶ ng/mL, ۷۳.۷۲۳ ng/mL, and ۷۵.۰۷۵ ng/mL, respectively for Tempeh treatment. While in the resistance group, there was also an increase in the mean value of sIgA concentrations; baseline, after food treatment, and after food and exercise treatments were ۷۰.۱۲۳ ng/mL, ۷۱.۸۰۱ ng/mL, and ۷۴.۴۳۰ ng/mL, respectively for Tofu treatment; and ۷۰.۱۲۳ ng/mL, ۷۲.۳۹۷ ng/mL, and ۷۷.۲۱۶ ng/mL, respectively for Tempeh treatment. These results indicated that combining both Tempeh consumption and moderate intensity resistance exercise was more effective to increase sIgA concentration. Conclusions: This study showed that combining moderate intensity resistance exercise with consumption of ۲۰۰ gr Tempeh for ۲ weeks was more effective in increasing sIgA concentration; compared to endurance exercise and Tofu consumption.

کلیدواژه ها:

: Exercise ، IgA ، Paraprobiotics ، Tempeh ، Upper Respiratory Tract Infection (URTI)