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Table 2 The changes in Oxy-Hb, Deoxy-Hb, HR, and MAP during Stroop test (n = 7 subjects)

From: Dynamic exercise improves cognitive function in association with increased prefrontal oxygenation

 

Stroop 1 (before exercise)

Stroop 2 (after exercise)

Baseline

During

Baseline

During

Without exercise (time control)

 Oxy-Hb (μmol)

0

2.17 ± 0.36*

0.31 ± 0.31

1.68 ± 0.55

 Deoxy-Hb (μmol)

0

0.49 ± 0.13

−0.02 ± 0.03

−0.13 ± 0.28

 HR (beats/min)

71 ± 3

85 ± 8*

70 ± 3

77 ± 5*

 MAP (mmHg)

78 ± 3

89 ± 4*

79 ± 3

85 ± 3

 Total time period (s)

68.9 ± 4.8

68.1 ± 3.7

20 %-EXmax

 Oxy-Hb (μmol)

0

2.03 ± 0.76*

0.64 ± 0.63

2.85 ± 1.32

 Deoxy-Hb (μmol)

0

−0.43 ± 0.15

0.05 ± 0.02

−0.53 ± 0.19

 HR (beats/min)

68 ± 4

80 ± 7*

69 ± 4

82 ± 5*

 MAP (mmHg)

81 ± 3

85 ± 2

83 ± 3

87 ± 3

 Total time period (s)

58.0 ± 2.5

 

58.1 ± 2.7

40 %-EXmax

 Oxy-Hb (μmol)

0

1.75 ± 0.37*

1.29 ± 0.85

4.09 ± 1.09*,†

 Deoxy-Hb (μmol)

0

−0.54 ± 0.08

−0.05 ± 0.05

−0.51 ± 0.20

 HR (beats/min)

68 ± 4

80 ± 6*

71 ± 5

86 ± 7*,†,#

 MAP (mmHg)

80 ± 3

90 ± 3*

84 ± 3

93 ± 3*

 Total time period (s)

63.4 ± 3.4

59.1 ± 2.9

60 %-EXmax

 Oxy-Hb (μmol)

0

2.58 ± 0.77*

7.39 ± 1.48†,#

9.27 ± 1.22†,#

 Deoxy-Hb (μmol)

0

−0.36 ± 0.23

−0.04 ± 0.06

−0.50 ± 0.12

 HR (beats/min)

70 ± 5

82 ± 6*

81 ± 5†,#

93 ± 6*,†,#

 MAP (mmHg)

80 ± 3

89 ± 3*

82 ± 4

91 ± 4*

 Total time period (s)

60.8 ± 2.1

57.9 ± 2.8

  1. * Significant difference (paired t test, P < 0.05) from the baseline before Stroop 1 or before Stroop 2
  2. Significant difference (paired t test, P < 0.05) between Stroop 1 and Stroop 2
  3. #Significant difference (Dunnett’s test, P < 0.05) from the values during time control (without exercise)