Mean (±SEM) IL-6 concentration obtained before exercise, immediately after exercise, and one hour following exercise on each trial day. *indicates significant difference from pre-exercise on all trials. No statistical significant difference between interleukin 6 values was observed. Table shows mean cytokine levels, standard deviation, and 95% confidence intervals during trials. Median and interquartile range IQR are also shown for 1 hour post exercise.