Quiet breathing |
Excursion cm | 1.7±0.4 (0.9–2.5) | 1.9±0.5 (0.9–2.8) | <0.01 |
Inspiratory time s | 1.1±0.3 (0.5–1.7) | 1.1±0.4 (0.4–1.8) | ns |
Inspiratory velocity cm·s−1 | 1.7±0.5 (0.7–2.6) | 1.8±1.1 (0–4) | ns |
Expiratory time s | 1±0.3 (0.4–1.6) | 1.1±0.4 (0.4–1.8) | <0.05 |
Expiratory velocity cm·s−1 | 1.5±0.7 (0.2–2.8) | 1.5±0.6 (0.4–2.7) | ns |
Duration of motion s | 2.3±0.6 (1.1–3.4) | 2.4±0.7 (1–3.8) | <0.05 |
Right-to-left ratio with quiet breathing | 1.1±0.3 (0.5–1.6) | 1±0.3 (0.4–1.5) | ns |
Voluntary sniffing |
Excursion cm | 2.6±0.6 (1.3–3.9) | 2.9±0.7 (1.5–4.3) | <0.001 |
Inspiratory time s | 0.3±0.1 (0.1–0.5) | 0.3±0.1 (0.1–0.5) | ns |
Inspiratory velocity cm·s−1 | 9.9±3.5 (3–16.7) | 12±4.9 (2.5–21.8) | <0.001 |
Deep breathing |
Excursion cm | 5.4±1.1 (3.3–7.5) | 6.6±1.3 (4.1–9) | <0.001 |
Inspiratory time s | 1.4±0.5 (0.4–2.4) | 1.4±0.6 (0.2–2.6) | ns |
Inspiratory velocity cm·s−1 | 4.4±1.8 (1.5–7.3) | 5.5±2.7 (0.2–10.9) | <0.001 |
Right-to-left ratio with deep breathing | 1±0.2 (0.6–1.4) | 1±0.2 (0.6–1.3) | ns |