Lean body mass and exercise induced changes in irisin.

<p>Correlations between proportions of lean body mass and relative changes in plasma irisin following singular sessions of intense endurance exercise (END) or heavy strength training (STR), or on a control day (CON) without training. The X axis represent individual % lean body mass. The Y axis represent individual changes in irisin concentration from baseline to each of the different time points with blood samples. Correlation analyses were performed using Pearson’s method, except of the ones marked ^sp, which were performed using Spearman’s method due to a lack of normal distribution. # = p≤0.05.