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Moderate intensity supine exercise causes decreased cardiac volumes and increased outer volume variations: a cardiovascular magnetic resonance study

Steding-Ehrenborg, Katarina LU ; Jablonowski, Robert LU ; Arvidsson, Per LU ; Carlsson, Marcus LU ; Saltin, Bengt and Arheden, Håkan LU (2013) In Journal of Cardiovascular Magnetic Resonance 15.
Abstract
Background: The effects on left and right ventricular (LV, RV) volumes during physical exercise remains controversial. Furthermore, no previous study has investigated the effects of exercise on longitudinal contribution to stroke volume (SV) and the outer volume variation of the heart. The aim of this study was to determine if LV, RV and total heart volumes (THV) as well as cardiac pumping mechanisms change during physical exercise compared to rest using cardiovascular magnetic resonance (CMR). Methods: 26 healthy volunteers (6 women) underwent CMR at rest and exercise. Exercise was performed using a custom built ergometer for one-legged exercise in the supine position during breath hold imaging. Cardiac volumes and atrio-ventricular plane... (More)
Background: The effects on left and right ventricular (LV, RV) volumes during physical exercise remains controversial. Furthermore, no previous study has investigated the effects of exercise on longitudinal contribution to stroke volume (SV) and the outer volume variation of the heart. The aim of this study was to determine if LV, RV and total heart volumes (THV) as well as cardiac pumping mechanisms change during physical exercise compared to rest using cardiovascular magnetic resonance (CMR). Methods: 26 healthy volunteers (6 women) underwent CMR at rest and exercise. Exercise was performed using a custom built ergometer for one-legged exercise in the supine position during breath hold imaging. Cardiac volumes and atrio-ventricular plane displacement were determined. Heart rate (HR) was obtained from ECG. Results: HR increased during exercise from 60 +/- 2 to 94 +/- 2 bpm, (p<0.001). LVEDV remained unchanged (p=0.81) and LVESV decreased with -9 +/- 18% (p<0.05) causing LVSV to increase with 8 +/- 3% (p<0.05). RVEDV and RVESV decreased by -7 +/- 10% and -24 +/- 14% respectively, (p<0.001) and RVSV increased 5 +/- 17% during exercise although not statistically significant (p=0.18). Longitudinal contribution to RVSV decreased during exercise by -6 +/- 15% (p<0.05) but was unchanged for LVSV (p=0.74). THV decreased during exercise by -4 +/- 1%, (p<0.01) and total heart volume variation (THVV) increased during exercise from 5.9 +/- 0.5% to 9.7 +/- 0.6% (p<0.001). Conclusions: Cardiac volumes and function are significantly altered during supine physical exercise. THV becomes significantly smaller due to decreases in RVEDV whilst LVEDV remains unchanged. THVV and consequently radial pumping increases during exercise which may improve diastolic suction during the rapid filling phase. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Physiology, Total heart volume variation, Ventricle, Cardiac pumping, Cardiovascular magnetic resonance
in
Journal of Cardiovascular Magnetic Resonance
volume
15
article number
96
publisher
BioMed Central (BMC)
external identifiers
  • wos:000326469600001
  • scopus:84886021867
  • pmid:24156367
ISSN
1097-6647
DOI
10.1186/1532-429X-15-96
language
English
LU publication?
yes
id
4f269d91-01ed-4e50-b1e6-3365172c99df (old id 4205420)
date added to LUP
2016-04-01 10:07:37
date last changed
2022-04-27 18:47:41
@article{4f269d91-01ed-4e50-b1e6-3365172c99df,
  abstract     = {{Background: The effects on left and right ventricular (LV, RV) volumes during physical exercise remains controversial. Furthermore, no previous study has investigated the effects of exercise on longitudinal contribution to stroke volume (SV) and the outer volume variation of the heart. The aim of this study was to determine if LV, RV and total heart volumes (THV) as well as cardiac pumping mechanisms change during physical exercise compared to rest using cardiovascular magnetic resonance (CMR). Methods: 26 healthy volunteers (6 women) underwent CMR at rest and exercise. Exercise was performed using a custom built ergometer for one-legged exercise in the supine position during breath hold imaging. Cardiac volumes and atrio-ventricular plane displacement were determined. Heart rate (HR) was obtained from ECG. Results: HR increased during exercise from 60 +/- 2 to 94 +/- 2 bpm, (p&lt;0.001). LVEDV remained unchanged (p=0.81) and LVESV decreased with -9 +/- 18% (p&lt;0.05) causing LVSV to increase with 8 +/- 3% (p&lt;0.05). RVEDV and RVESV decreased by -7 +/- 10% and -24 +/- 14% respectively, (p&lt;0.001) and RVSV increased 5 +/- 17% during exercise although not statistically significant (p=0.18). Longitudinal contribution to RVSV decreased during exercise by -6 +/- 15% (p&lt;0.05) but was unchanged for LVSV (p=0.74). THV decreased during exercise by -4 +/- 1%, (p&lt;0.01) and total heart volume variation (THVV) increased during exercise from 5.9 +/- 0.5% to 9.7 +/- 0.6% (p&lt;0.001). Conclusions: Cardiac volumes and function are significantly altered during supine physical exercise. THV becomes significantly smaller due to decreases in RVEDV whilst LVEDV remains unchanged. THVV and consequently radial pumping increases during exercise which may improve diastolic suction during the rapid filling phase.}},
  author       = {{Steding-Ehrenborg, Katarina and Jablonowski, Robert and Arvidsson, Per and Carlsson, Marcus and Saltin, Bengt and Arheden, Håkan}},
  issn         = {{1097-6647}},
  keywords     = {{Physiology; Total heart volume variation; Ventricle; Cardiac pumping; Cardiovascular magnetic resonance}},
  language     = {{eng}},
  publisher    = {{BioMed Central (BMC)}},
  series       = {{Journal of Cardiovascular Magnetic Resonance}},
  title        = {{Moderate intensity supine exercise causes decreased cardiac volumes and increased outer volume variations: a cardiovascular magnetic resonance study}},
  url          = {{https://lup.lub.lu.se/search/files/1585901/4438259}},
  doi          = {{10.1186/1532-429X-15-96}},
  volume       = {{15}},
  year         = {{2013}},
}