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Table 1 Results of respiratory analyses

From: Diurnal variations in muscle and liver glycogen differ depending on the timing of exercise

 

10 min

20 min

30 min

40 min

50 min

60 min

Average

O2 uptake (ml/min)

 Morning

2494 ± 51

2623 ± 52

2618 ± 51

2620 ± 54

2614 ± 56

2624 ± 55

2599 ± 51*

 Afternoon

2470 ± 45

2577 ± 46

2569 ± 50

2566 ± 54

2564 ± 55

2561 ± 54

2551 ± 49

CO2 production (ml/min)

 Morning

2315 ± 70

2439 ± 65

2423 ± 65

2414 ± 72

2414 ± 73

2419 ± 71

2404 ± 68**

 Afternoon

2408 ± 66

2541 ± 67

2531 ± 67

2521 ± 73

2508 ± 75

2506 ± 77

2502 ± 69

Ventilation (L/min)

 Morning

66.8 ± 3.2

72.0 ± 3.2

73.6 ± 3.5

74.5 ± 4.0

75.1 ± 4.2

75.4 ± 4.2

72.9 ± 3.6

 Afternoon

68.6 ± 3.1

74.6 ± 3.2

75.3 ± 3.2

75.1 ± 3.2

75.3 ± 3.5

75.8 ± 3.5

74.1 ± 3.2

Respiratory exchange ratio

 Morning

0.93 ± 0.02

0.93 ± 0.01

0.92 ± 0.01

0.92 ± 0.01

0.92 ± 0.01

0.92 ± 0.01

0.92 ± 0.01**

 Afternoon

0.97 ± 0.01

0.99 ± 0.01

0.98 ± 0.01

0.98 ± 0.01

0.98 ± 0.01

0.98 ± 0.01

0.98 ± 0.01

  1. Values are shown as mean ± standard errors. *P < 0.05, **P < 0.01 vs afternoon trial