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Table 2 Test-retest reliability of the cardiopulmonary performance parameters

From: Test-retest reliability and four-week changes in cardiopulmonary fitness in stroke patients: evaluation using a robotics-assisted tilt table

 

TB1 (mean ± SD)

TB2 (mean ± SD)

p-value

MD

95%CI

SDD

95 % LoA

CoV (%)

ICC (95 % CI)

Absolute V'O2peak (mL/min)

1130.5 ± 349.4

1156.4 ± 376.6

0.60

25.8

−77.4, 129.1

200.8

−0.26x̄, 0.26x̄

11.6

0.85 (0.64, 0.94)

Relative V'O2peak (mL/kg/min)

15.7 ± 4.7

16.0 ± 4.9

0.65

0.3

−1.1, 1.7

2.8

−0.26x̄, 0.26x̄

11.6

0.84 (0.61, 0.94)

HRpeak (beats/min)

120.9 ± 26.3

124.2 ± 25.2

0.26

3.2

−2.6, 9.0

11.3

−18.9, 25.3

6.9

0.90 (0.76, 0.96)

HRpeak% of APMHR

78.0 ± 15.0

80.1 ± 13.6

0.26

2.04

−1.6, 5.7

7.2

−12.1, 16.2

6.9

0.87 (0.69, 0.95)

RERpeak

1.06 ± 0.09

1.08 ± 0.08

0.10

0.02

−0.01, 0.52

0.06

−0.1, 0.1

4.1

0.78 (0.49, 0.91)

WRpeak (W)

28.0 ± 12.4

29.0 ± 13.3

0.36

1.07

1.4, 3.5

4.6

−7.9, 10.1

13.4

0.94 (0.83, 0.98)

Absolute V'O2VAT (mL/min) (n = 16)

575.4 ± 105.9

635.5 ± 177.3

0.045

60.1

−1.4, 118.9

110.2

−0.34x̄, 0.34x̄

14.5

0.67 (0.27, 0.87)

Relative V'O2VAT (mL/kg/min)

8.0 ± 1.6

8.8 ± 2.4

0.050

0.8

0.0, 1.6

1.5

−0.34x̄, 0.34x̄

14.5

0.68 (0.29, 0.88)

V'O2VAT% of V'O2peak (%)

50.3 ± 9.4

53.1 ± 9.1

0.27

2.8

−2.4, 8.2

10

−16.8, 22.4

15.4

0.41 (−0.07, 0.74)

HRVAT (beats/min) (n = 15)

89.5 ± 9.3

91.9 ± 9.7

0.17

2.4

−1.1, 6.0

6.5

−10.3, 15.1

5.5

0.76 (0.44, 0.91)

HRVAT % of HR reserve

32.6 ± 9.2

35.1 ± 11.5

0.33

2.5

−2.8, 7.8

9.5

−16.1, 21.1

19.5

0.58 (0.13, 0.84)

HRVAT % of APMHR

57.3 ± 5.4

58.8 ± 5.2

0.20

1.5

−0.9, 3.8

4.3

−0.62x̄, 0.62x̄

5.5

0.67 (0.28, 0.87)

Absolute V'O2RCP (mL/min) (n = 12)

956.5 ± 197.9

1002.9 ± 179.4

0.33

46.3

−54.1, 146.6

157.9

−263.2, 355.8

11.6

0.65 (0.17, 0.88)

Relative V'O2RCP (mL/kg/min)

13.4 ± 2.5

14.1 ± 2.5

0.28

0.7

−0.7, 2.1

2.1

−3.4, 4.8

11.6

0.77 (0.24, 0.87)

V'O2RCP% of V'O2peak (%)

77.2 ± 8.8

82.1 ± 6.8

0.035

4.9

0.4, 9.5

7.1

−9.0, 18.8

8.3

0.50 (−0.02, 0.82)

HRRCP (beats/min) (n = 11)

112.5 ± 18.2

113.6 ± 17.7

0.42

1.1

−5.3, 7.4

9.4

−17.3, 19.5

5.8

0.87 (0.59, 0.96)

HRRCP % of HR reserve

70.2 ± 16.2

73.6 ± 10.8

0.48

3.5

−7.0, 14.0

15.6

−27.1, 34.1

18.4

0.37 (−0.28, 0.78)

HRRCP % of APMHR

71.3 ± 12.1

71.9 ± 11.7

0.72

0.7

−3.2, 4.6

5.8

−10.7, 12.1

5.8

0.89 (0.64, 0.97)

RPE dyspnea

5.1 ± 2.0

5.2 ± 2.7

0.93

0.1

−0.8, 0.9

1.7

−3.2, 3.4

28.4

0.76 (0.44, 0.91)

RPE leg effort

6.8 ± 2.1

7.5 ± 1.6

0.23

0.8

−0.3, 1.8

2

−3.1, 4.7

29.5

0.41 (−0.04, 0.73)

V'E/V'O2 at VAT

31.8 ± 4.8

32.8 ± 5.0

0.28

0.9

−0.8, 2.7

3.3

−5.6, 7.4

7.3

0.77 (0.48, 0.91)

V'E/V'CO2 at RCP

33.8 ± 3.7

33.8 ± 3.7

0.91

0.1

−1.2, 1.3

2.0

−3.9, 4.0

4.5

0.87 (0.60, 0.96)

V'E-vs-V'CO2 slope to RCP

32.2 ± 4.8

33.0 ± 5.5

0.36

0.8

−1.0, 2.6

2.8

−4.7, 6.3

6.1

0.85 (0.58,0.96)

6 MWD (n = 12)

502.5 ± 113.4

528.3 ± 113.1

0.010

25.8

7.5, 44.1

28.7

−30.5, 82.1

5.6

0.95 (0.65, 0.99)

  1. n = 17, unless otherwise indicated
  2. TB1 baseline test 1, TB2 baseline test 2, APMHR age-predicted maximal heart rate, VAT ventilatory anaerobic threshold, RCP respiratory compensation point, 6 MWD 6 min-walk distance, MD mean difference, SDD standard deviation of difference, LoA limits of agreement, CoV coefficient of variation, ICC intraclass correlation coefficient, CI confidence interval, x̄ individual average
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BMC Neurology

ISSN: 1471-2377

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