Table 3 The relationships between changes in peak oxygen uptake and peak minute ventilation and explanatory variables

Age (years)

−0.006

0.273

−0.011

−0.238

−0.020–−0.002

0.023

Sex

−0.146

0.042

0.022

0.039

−0.110–0.155

0.737

Height (m)

−0.652

0.145

V̇O_2peak at baseline (L ∙ min⁻¹)

−0.178

0.004

−0.260

−0.515

−0.379–−0.141

<0.001

Smoking during follow-up

−0.108

0.144

−0.139

−0.240

−0.257–−0.021

0.021

ΔFEV₁ (L)

0.440

<0.001

0.254

0.251

0.024–0.484

0.031

ΔFVC (L)

0.271

<0.001

Δ Weight (kg)

−0.004

0.604

ΔIC_rest (L)

0.317

<0.001

0.294

0.492

0.110–0.478

0.002

ΔIC_dynamic (L)

0.202

0.037

−0.105

−0.140

−0.315–0.105

0.320

Strenuous physical activity

0.020

0.593

Light physical activity

0.079

0.131

Exacerbations

−0.100

0.166

Time between CPET1 and CPET2

0.005

0.907

R² = 0.567

ΔV̇_Epeak (L ∙ min⁻¹)

Age (years)

−0.075

0.756

−0.131

−0.070

−0.545–0.283

0.528

Sex

−2.484

0.404

3.180

0.163

−2.111–9.732

0.203

Height (m)

−3.447

0.848

V̇_Epeak at baseline (L ∙ min⁻¹)

−0.163

0.032

−0.259

−0.422

−0.415–−0.103

0.002

Smoking during follow-up

−3.506

0.249

ΔFEV₁ (L)

19.220

<0.001

11.845

0.285

1.699–21.990

0.023

ΔFVC (L)

11.626

<0.001

Δ Weight (kg)

−0.324

0.254

ΔIC_rest (L)

13.030

<0.001

12.135

0.497

3.759–20.510

0.005

ΔIC_dynamic (L)

11.109

0.004

−4.219

−0.137

−13.748–5.310

0.379

Strenuous physical activity

0.984

0.512

Light physical activity

2.241

0.297

Exacerbations

−4.775

0.104

Time between CPET1 and CPET2

−0.299

0.870

R² = 0.447