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Table 1 Right ventricular structural and functional indices during exercise

From: Exploratory assessment of right ventricular structure and function during prolonged endurance cycling exercise

Variable

Baseline

2-h

4-h

6-h

Heart rate (beats.min−1)

60 ± 10

131 ± 12ɣ

134 ± 16*

146 ± 27ʘ

RVOTplax (mm)

30 ± 3

31 ± 2

32 ± 3

33 ± 3

RVOT1 (mm)

32 ± 4

33 ± 6

34 ± 4

33 ± 5

RVOT2 (mm)

22 ± 3

22 ± 3

24 ± 2

23 ± 2

RVD1 (mm)

46 ± 5

47 ± 3

49 ± 5

47 ± 5

RVD2 (mm)

28 ± 5

28 ± 4

29 ± 3

30 ± 4

RVD3 (mm)

85 ± 10

89 ± 6

90 ± 4

89 ± 4

RVAd (cm2)

26.4 ± 4.7

27.0 ± 2.7

28.5 ± 3.8

27.9 ± 3.1

RVAs (cm2)

12.9 ± 1.7

13.3 ± 2.5

13.2 ± 1.6

13.8 ± 1.8

RVFAC (%)

50.6 ± 6.0

50.9 ± 5.4

53.5 ± 6.2

50.5 ± 6.2

TAPSE (mm)

28 ± 3

32 ± 2

35 ± 4*

32 ± 3

RV S’ (cm/s)

17 ± 3

34 ± 6ɣ

31 ± 7*

32 ± 5ʘ

RV E’ (cm/s)

17 ± 41

20 ± 4

20 ± 6

20 ± 9

RV A’ (cm/s)

13 ± 3

29 ± 4ɣ

34 ± 3*

34 ± 2ʘ

PASP (mmHg)

17 ± 10

20 ± 9

21 ± 9

26 ± 9

TR velocity (m/s)

1.9 ± 0.5

2.1 ± 0.2

2.1 ± 0.6

2.4 ± 0.2

RV wall stress (kdynes/cm2)

6.2 ± 2.4

5.8 ± 3.4

5.5 ± 2.2

7.1 ± 3.0

  1. One-way repeated measures ANOVA, statistical significance indicated as ɣ = baseline to 2 h, * = baseline to 4 h, ʘ = baseline to 6 h. Data are mean ± SD, N = 8, except for RVOTplax where n = 7. Baseline data were obtained with participants sat upright on the bike
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Echo Research & Practice

ISSN: 2055-0464

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