TABLE 3

Comparison of the variation in dyspnoea, daily steps, SGRQ, HADS, lung function, 6MWD and 1-RM between intervention and control groups

Pulmonary rehabilitation groupControl groupp-value
Subjects n1819
Dyspnoea
 TDI3 (2–3)0 (−2–0)<0.001
 ΔmMRC0 (−1–0)0 (0–1)<0.001
Daily physical activity
 ΔDaily steps (total)752 (−694–1814)−138 (−830–208)0.02
 ΔDaily steps (moderate-to-vigorous intensity)588 (−50–1675)−124 (−1176–223)0.03
 ΔTime spent in moderate-to-vigorous intensity exercise min6 (0.8–10)−2 (−4–1)0.01
SGRQ
 ΔSymptoms−10 (−22–0)0 (−8–6)0.04
 ΔActivity−11 (−17– −7)0.8 (−0.8–12)<0.001
 ΔImpact−5 (−12–0.2)0.2 (−4–5)0.05
 ΔTotal−8 (−16–2)2 (−4–5)0.002
HADS
 ΔAnxiety−0.5 (−3–2)1 (−1.5–2)0.45
 ΔDepression−2 (−4–0)0 (−2–3)0.07
 ΔTotal−3 (−6–2)0 (−2–3)0.08
Lung function
 ΔFEV1 L−0.05 (−0.09–0.04)−0.03 (−0.08–0.05)0.76
 ΔFEV1 %−2 (−5–2)−3 (−4–4)0.59
 ΔDLCO mmHg−0.22 (−0.76–0.46)0 (−0.89–0.17)0.88
 ΔDLCO %−1 (−7–3)0 (−6–0.8)0.77
Δ6MWD59 (13–81)20 (−12–30)0.002
Muscle strength
 Δ 1-RM quadriceps %39 (20–70)4 (0–17)<0.001
 Δ 1-RM hamstrings %82 (53–127)−4 (−9–6)<0.001
 Δ 1-RM biceps %30 (14–33)0 (0–8)<0.001
 Δ 1-RM arm abductors %29 (4–50)0 (−10–0)<0.001
 Δ 1-RM pectorals %33 (13–79)0 (−5–8)<0.001
  • Data are presented as median (interquartile range), unless otherwise stated. SGRQ: St George's Respiratory Questionnaire; HADS: Hospital Anxiety and Depression Scale; 6MWD: 6-min walking distance; 1-RM: one-repetition maximum; TDI: Transitional Dyspnoea Index; mMRC: modified Medical Research Council dyspnoea scale; FEV1: forced expiratory volume in 1 s; DLCO: diffusing capacity of the lung for carbon monoxide.