| Unobstructed | Obstructed | ||
Young | Old | Young | Old | |
RTP, s | 0.39 (0.08) | 0.42 (0.07) | 0.40 (0.06) | 0.43 (0.10) |
APAP, s | 0.48 (0.06) | 0.49 (0.10) | 0.50 (0.10) | 0.52 (0.11) |