SLP Tidal Breathing Parameters for adult male and female normals aged 18–69 years
| Parameter | Males 18–39 yrs (n = 32) Mean±SD | Males 40–69 yrs (n = 25) Mean ± SD | Young vs older males, t (p) | Females 18–39 (n = 21) Mean ± SD | Females 40–69 yrs (n = 29) Mean ± SD | Young vs older Females, t (p) | Males vs. Females (all ages), t (p) |
|---|---|---|---|---|---|---|---|
| TAA | 5.7 ± 23.3 | 4.75 ± 2.69 | 1.18 (0.24) | 4.85 ± 2.45 | 4.8 ± 1.83 | 0.08 (0.94) | 0.92 (0.36) |
| LRHTA | 2.24 ± 2.13 | 2.39 ± 1.64 | −0.298 (0.77) | 1.58 ± 0.69 | 2.04 ± 1.43 | −1.36 (0.18) | 1.47 (0.14) |
| %RC | 45.87 ± 13.07 | 56.29 ± 11.03 | −3.2(<0.01) | 60.23 ± 8.55 | 61.31 ± 10.33 | −0.39 (0.70) | −4.62(<0.001) |
| IE50 | 1.34 ± 0.27 | 1.25 ± 0.18 | 1.48 (0.14) | 1.37 ± 0.2 | 1.42 ± 0.29 | −0.64 (0.52) | −1.94 (0.06) |
| tPTEF/tE | 0.34 ± 0.09 | 0.26 ± 0.07 | 3.67(<0.001) | 0.32 ± 0.09 | 0.26 ± 0.06 | 2.62(<0.05) | 0.91 (0.36) |
| tPTIF/tI | 0.49 ± 0.09 | 0.55 ± 0.09 | −2.69(<0.01) | 0.5 ± 0.08 | 0.52 ± 0.07 | 0.88 (0.38) | −1.13 (0.26) |
TAA: Thoraco-abdominal asynchrony (TAA), LRHTA:left vs Right Hemi-thoracic asynchrony, IE50:Inspiratory to expiratory flow at 50% of tidal volume calculated from thoraco-abdominal wall displacement, tPTEF/tE: normalised time to reach peak tidal expiratory flow, tPTIF/tI: normalised time to reach peak tidal inspiratory flow