Table 2

Spirometry values obtained from 20 healthy participants before and after completing a short maximal aerobic field exercise

	Pre-exercise		5 min post-exercise		10 min post-exercise		% change at 5 min		Change at 5 min		% change at 10 min			Change at 10 min
Spirometry values, units	Mean	SD	Mean	SD	Mean	SD	Mean diff %	95% CI %	Mean diff	95% CI	P value*	Mean diff %	95% CI %	Mean diff	95% CI	P value*
FEV₁, L	4.33	0.58	4.64	0.78	4.59	0.75	6.9%	3.7% to 10.2%	0.31	0.15 to 0.47	0.001	5.9%	2.7% to 9.0%	0.26	0.12 to 0.41	0.001
FEV₁, z-value	0.23	0.76	0.84	1.19	0.75	1.09			0.61	0.30 to 0.92	0.001			0.51	0.23 to 0.80	0.001
FVC, L	5.41	0.88	5.70	1.01	5.67	1.03	5.2%	2.3% to 8.1%	0.29	0.12 to 0.45	0.002	4.7%	1.6% to 7.9%	0.26	0.08 to 0.34	0.006
FVC, z-value	0.23	0.62	0.67	0.93	0.63	0.91			0.44	0.20 to 0.68	0.001			0.40	0.14 to 0.66	0.005
FEF₅₀, L/s	5.29	1.38	5.68	1.41	5.48	1.34	8.2%	2.0% to 14.4%	0.39	0.12 to 0.67	0.007	4.5%	0.1% to 8.9%	0.19	−0.05 to 0.44	0.113
FEV₁/FVC, units	0.81	0.06	0.82	0.07	0.81	0.06			0.14	0.00 to 0.03	0.027			0.01	0.00 to 0.02	0.120

*Dependent sample t-test.
Change in %: (Post-exercise value−pre-exercise value)/pre-exercise value×100.
diff, difference; FEF₅₀, forced expiratory flow at 50% of exhaled FVC; FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.