Comparison of Immunoglobulins (IgA, IgG, IgM) and Cortisol Serum Response Following Resistance and High Intensity Interval Exercises

Sport activity and the type of training are factors that effect on immune system. The aim of the present study is to compare Immunoglobulins (IgA, IgG, IgM) and cortisol serum response following resistance (RE) and High Intensity Interval Exercises (HIIE).
Subjects and Ten elite volunteer karatekas(mean ± SD; aged 22.1±2.76 years, height 175.8±5.43 cm, weight 74.3±9.06 kg, body mass index 23.9±2.08 kg/m2, body fat 16.36± 4.42 percent, maximal oxygen uptake58.77±2.47 ml/kg.min) participated in the semi-experimental study. Subjects initially performed a single bout of RE with 85 to 95% of one repetition Maximum (1RM) and two weeks later they did a single bout of HIIE with 85 to 95% of maximum heart rate reserve(MHRR). Blood sampling was taken before and immediately after each exercise. kolmogorov smirnov test(KS test), paired sample t-test and analysis of variance(ANOVA) for 2x2 repeated measurements were used. The p-value was defined as p ≤ 0.05.
Although HIIE caused a significant increase in cortisol (P=0.035) and IgM(P=0.045) levels. However a significant decrease was observed in IgA (P=0.002) and IgG (P=0.001) levels following this exercise. A significant increase in cortisol (P= 0.024) and a significant decrease in IgA (P=0.047), IgG (P= 0.004) and IgM (P= 0.0046) was observed following RE.
It seems that HIIE can be considered as an immune system amplifier.