Figure 3

Course of the PSQI for the 3 study groups (aerobic training: red; multimodal therapy: blue; combination therapy: violet) over 4 years (n = 79), including after 10 weeks of intervention (T1) and 6 months later (T2) in frail color (n = 79). Colored asterisk indicates significant better sleep quality in MT and CT versus AT. PSQI Pittsburgh Sleep Quality Index, AT aerobic therapy, MT multimodal therapy, CT combination therapy.