Table 3 Descriptive statistics of physiological measures during the resting scan.

From: Multimodal neuroimaging data from a 5-week heart rate variability biofeedback randomized clinical trial

Younger adults

 

Respiration rate (Hz) Week-2

Respiration rate (Hz) Week-7

Heart rate (bpm) Week-2

Heart rate (bpm) Week-7

ETCO2(mmHg) Week-2

ETCO2(mmHg) Week-7

Younger Osc+

N

54

46

59

45

35

41

 

M (SD)

0.27 (0.06)

0.25 (0.07)

68.90 (9.65)

66.14 (8.69)

41.00 (3.13)

40.44 (3.27)

Younger Osc-

N

43

41

51

43

31

37

 

M (SD)

0.29 (0.06)

0.29 (0.06)

69.79 (10.33)

67.97 (9.65)

40.56 (4.02)

40.76 (3.99)

Older adults

 

Respiration rate (Hz) Week-2

Respiration rate (Hz) Week-7

Heart rate (bpm) Week-2

Heart rate (bpm) Week-7

ETCO2(mmHg) Week-2

ETCO2(mmHg) Week-7

Younger Osc+

N

28

25

29

25

28

24

 

M

0.23 (0.07)

0.22 (0.06)

65.87 (9.55)

62.11 (10.95)

39.97 (4.78)

40.11 (4.42)

Younger Osc-

N

24

24

27

21

25

25

 

M

0.22 (0.06)

0.23 (0.06)

70.35 (11.78)

69.34 (13.59)

41.07 (4.04)

41.65 (4.30)