Figure 1.

Reduced ATP levels in individuals with burnout and impact of physical activity. (A) ATP levels were normalized to the mean of the healthy control group at baseline (100%). ATP levels in the group of individuals with burnout at baseline (t0) were significantly lower compared to those of the healthy control group. At study end (t1), ATP levels significantly increased in individuals with burnout compared to baseline (t0). Student’s t-test * p < 0.05, ** p < 0.01. Values are represented by the mean ± SEM. (B) Correlation of absolute ATP levels (µmol/l per 2 × 105 cells) with total score of the Maslach Burnout Inventory (MBI) for the entire sample at baseline (t0). ATP levels decreased with increasing symptoms of emotional exhaustion. Pearson’s correlation coefficient −0.62 p < 0.001.