Table 2 Respiratory measures quantified at different times of the day

378 ± 2^a

411 ± 16^a

432 ± 19^b

403 ± 25^a

0.037

1.21 ± 0.12^a

1.31 ± 0.14^b,c

1.35 ± 0.15^b

1.20 ± 0.16^a,c

0.014

94.7 ± 7.89^a

109.5 ± 7.63^b

118.1 ± 8.77^b

109.3 ± 9.46^a

0.013

0.14 ± .01^a

0.11 ± 0.01^b

0.11 ± 0.01^b

0.13 ± 0.01^a,b

0.038

0.06 ± 0.004

0.05 ± 0.003

0.05 ± 0.002

0.06 ± 0.004

0.180

7.79 ± 0.51

8.52 ± 0.54

9.05 ± 0.54

8.73 ± 0.63

0.065

4.48 ± 0.39^a

5.14 ± 0.42^b

5.41 ± 0.45^c

5.08 ± 0.43^b

0.014

0.07 ± .01^a

0.06 ± 0.003^b

0.06 ± 0.01^b

0.07 ± 0.01^a,b

0.020