Table 2.

Lung functional volumes expressed in % of the AV and in % of the total activity in the AV for the pmax threshold method. Lung functional volumes expressed in % of the AV and the corresponding pmax threshold for each FV% for the WLF threshold method.

Pmax Threshold Method
	Volume (% of the AV) Median (IQ)	Activity (% of Total Activity in the AV) Median (IQ)
10%pmax	93.8 (88.2–96.4)	98.9 (97.4–99.4)
20%pmax	78.2 (65.3–85.8)	92.0 (86.5–95.2)
30%pmax	54.2 (40.8–67.7)	75.5 (62.1–84.0)
40%pmax	34.1 (19.6–47.3)	55.3 (34.0–66.9)
50%pmax	18.3 (7.1–28.5)	32.3 (14.0–45.3)
60%pmax	6.6 (2.2–13.3)	14.5 (5.6–24.3)
WLF Threshold Method
	Volume (% of the AV) Median (IQ)	Corresponding %pmax threshold Median (IQ)
FV10%	5.0 (4.4–5.5)	63.0 (52.8–69.3)
FV20%	10.9 (9.7–11.8)	55.5 (46.0–62.3)
FV30%	17.6 (16.1–18.8)	51.0 (41.0–57.0)
FV40%	24.4 (23.0–26.3)	46.5 (37.0–52.0)
FV50%	32.6 (30.7–34.2)	42.0 (33.8–48.0)
FV60%	41.4 (39.0–43.1)	38.0 (30.8–43.3)
FV70%	51.9 (48.3–53.3)	33.0 (26.5–38.3)
FV80%	62.8 (60.0–64.5)	27.0 (22.8–33.0)
FV90%	76.1 (73.7–78.2)	21.0 (17.0–26.0)