Table 2 Comparison of the free fat mass index (FFMI) and 6MWT distance within-group (Paired sample t -Test, T0 vs T1) and between-groups (ANCOVA with baseline value as covariate, Group A vs Group B)

From: Effects of nutraceutical diet integration, with coenzyme Q₁₀ (Q-Ter multicomposite) and creatine, on dyspnea, exercise tolerance, and quality of life in COPD patients with chronic respiratory failure