Table 1.

Dynamic lung indexes at baseline and after exercise in a dehydrated state, exercise in a euhydrated state, and a time-matched rest period

	Dehydration	Control	Rest
FEV1, liters
Baseline	4.21 ± 0.89	4.17 ± 0.87	4.18 ± 0.85
10 min post	4.24 ± 0.90	4.21 ± 0.96	4.28 ± 0.90
120 min post	4.23 ± 0.89	4.24 ± 0.93	4.31 ± 0.92
Rehydrated (60 min post-EVH)	4.19 ± 0.94	4.10 ± 0.90	4.10 ± 0.81
FVC, liters
Baseline	5.09 ± 1.22	5.09 ± 1.23	5.12 ± 1.19
10 min post	4.79 ± 1.10*C,R	5.00 ± 1.21*R	5.10 ± 1.17
120 min post	4.89 ± 1.10*C,R	5.06 ± 1.20	5.17 ± 1.25
Rehydrated (60 min post-EVH)	5.00 ± 1.20*	5.03 ± 1.25	5.06 ± 1.21
PEF, l/s
Baseline	9.13 ± 2.25	9.13 ± 2.13	9.20 ± 2.10
10 min post	9.16 ± 2.01	9.47 ± 2.47	9.64 ± 2.44
120 min post	9.12 ± 2.16	9.36 ± 2.31	9.62 ± 2.32
Rehydrated (60 min post-EVH)	8.90 ± 2.17	9.10 ± 2.40	8.89 ± 1.94

Values are means ± SD for 10 participants. FEV₁, forced expiratory volume in 1 s; FVC, forced vital capacity; PEF, peak expiratory flow; EVH, eucapnic voluntary hyperpnea.

^*P < 0.05 vs. baseline;

^CP < 0.05 vs. control at corresponding time point;

^RP < 0.05 vs. rest at corresponding time point.