Figure 4From: A clinical study of the efficacy of a single session of individual exercise for depressive patients, assessed by the change in saliva free cortisol levelBoxplot of change in the subjective depressive symptom scores of 15 participants before and after the control session. Each box includes 50% of the cases (between percentils 25 and 75). The black line inside represents the median and the whiskers show extreme cases of individual variables. *p < 0.01 as compared to the value before the control session.Back to article page