Table 1.

Summary of subjects studied

Subject	Sex	Age	FVC (L)	FVC (%Pred)	FEV1 (L)	FEV1 (%Pred)	FEF25–75	PEF (L/s)
F1	F	20	3.43	86	2.94	84	2.89	5.01
F2	F	34	4.37	111	3.51	113	3.39	5.80
F3	F	22	4.46	115	3.60	115	3.44	8.16
M1	M	29	5.97	112	5.00	118	5.34	10.07
M2	M	22	7.35	126	5.22	113	4.01	10.82
M3	M	23	5.37	88	5.24	110	7.42	10.52