Table 1 Left ventricular function

From: Long-duration human spaceflight induces atrophy in the left ventricular papillary muscles

Parameters

Spaceflight timepoints

P value

ICCs

PRE

POST

Intra

Inter

(n = 9)

(n = 9)

EDV

(mL)

164.8 ± 24.6

162.6 ± 27.0

0.459

0.97

0.95

ESV

(mL)

62.3 ± 16.6

61.3 ± 16.9

0.844

0.89

0.87

SV

(mL)

102.5 ± 21.2

101.4 ± 16.8

0.792

0.89

0.88

EF

(%)

62.1 ± 8.3

62.5 ± 6.2

0.890

0.89

0.78

HR*

(bpm)

51 ± 7

59 ± 6

< 0.001

NA

NA

CO

(L/min)

5.2 ± 1.3

6.0 ± 1.0

0.030

0.94

0.93

GLS

(%)

−16.15 ± 1.79

−15.89 ± 1.89

0.645

0.96

0.96

GCS

(%)

−18.23 ± 2.47

−17.59 ± 2.35

0.432

0.97

0.97

  1. PRE pre-flight, POST post-flight, ICC intraclass correlation coefficient, EDV end-diastolic volume, ESV end-systolic volume, SV stroke volume, EF ejection fraction, HR heart rate, CO cardiac output, GLS global longitudinal strain, GCS global circumferential strain, NA not applicable. P values reported in bold are considered statistically significant. * Heart rate was measured at the bedside of the cosmonauts just before the MRI acquisitions.
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