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.