Left Ventricular Speckle Tracking-Derived Cardiac Strain and Cardiac Twist Mechanics in Athlete: A Systematic Review and Meta-Analysis of Controlled Studies

Alexander Beaumont, Fergal Grace, Joanna Richards, John Hough, David Oxborough, Nicholas Sculthorpe

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

PurposeThe objective of the present study was to investigate left ventricular (LV) twist mechanics in response to incremental cycling and isometric knee extension exercises.
MethodsTwenty-six healthy male participants (age = 30.42 ± 6.17 years) were used to study peak twist mechanics at rest and during incremental semi-supine cycling at 30 and 60% work rate maximum (Wmax) and during short duration (15 s contractions) isometric knee extension at 40 and 75% maximum voluntary contraction (MVC), using two-dimensional speckle tracking echocardiography.
ResultsData presented as mean ± standard deviation or median (interquartile range). LV twist increased from rest to 30% Wmax (13.21° ± 4.63° to 20.04° ± 4.76°, p < 0.001) then remained unchanged. LV systolic and diastolic twisting velocities progressively increased with exercise intensity during cycling from rest to 60% Wmax (twisting, 88.21° ± 20.51° to 209.05° ± 34.56° s−1, p < 0.0001; untwisting, −93.90 (29.62)° to −267.31 (104.30)° s−1, p < 0.0001). During the knee extension exercise, LV twist remained unchanged with progressive intensity (rest 13.40° ± 4.80° to 75% MVC 16.77° ± 5.54°, p > 0.05), whilst twisting velocity increased (rest 89.15° ± 21.77° s−1 to 75% MVC 124.32° ± 34.89° s−1, p < 0.01). Untwisting velocity remained unchanged from rest [−90.60 (27.19)° s−1] to 40% MVC (p > 0.05) then increased from 40 to 75% MVC [−98.44 (43.54)° s−1 to −138.42 (73.29)° s−1, p < 0.01]. Apical rotations and rotational velocities were greater than basal during all conditions and intensities (all p < 0.01).
ConclusionCycling increased LV twist to 30% Wmax which then remained unchanged thereafter, whereas twisting velocities showed further increases to greater intensities. A novel finding is that LV twist was unaffected by incremental knee extension, yet systolic and diastolic twisting velocities augmented with isometric exercise.
Original languageEnglish
Pages (from-to)1-26
JournalSports Medicine
DOIs
Publication statusPublished - 6 Dec 2016

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Mechanics
Athletes
Meta-Analysis
Knee
Exercise
Isometric Contraction
Echocardiography
Healthy Volunteers

Cite this

@article{4aec6def9f2a4892ba1a5bb436e452d6,
title = "Left Ventricular Speckle Tracking-Derived Cardiac Strain and Cardiac Twist Mechanics in Athlete: A Systematic Review and Meta-Analysis of Controlled Studies",
abstract = "PurposeThe objective of the present study was to investigate left ventricular (LV) twist mechanics in response to incremental cycling and isometric knee extension exercises.MethodsTwenty-six healthy male participants (age = 30.42 ± 6.17 years) were used to study peak twist mechanics at rest and during incremental semi-supine cycling at 30 and 60{\%} work rate maximum (Wmax) and during short duration (15 s contractions) isometric knee extension at 40 and 75{\%} maximum voluntary contraction (MVC), using two-dimensional speckle tracking echocardiography.ResultsData presented as mean ± standard deviation or median (interquartile range). LV twist increased from rest to 30{\%} Wmax (13.21° ± 4.63° to 20.04° ± 4.76°, p < 0.001) then remained unchanged. LV systolic and diastolic twisting velocities progressively increased with exercise intensity during cycling from rest to 60{\%} Wmax (twisting, 88.21° ± 20.51° to 209.05° ± 34.56° s−1, p < 0.0001; untwisting, −93.90 (29.62)° to −267.31 (104.30)° s−1, p < 0.0001). During the knee extension exercise, LV twist remained unchanged with progressive intensity (rest 13.40° ± 4.80° to 75{\%} MVC 16.77° ± 5.54°, p > 0.05), whilst twisting velocity increased (rest 89.15° ± 21.77° s−1 to 75{\%} MVC 124.32° ± 34.89° s−1, p < 0.01). Untwisting velocity remained unchanged from rest [−90.60 (27.19)° s−1] to 40{\%} MVC (p > 0.05) then increased from 40 to 75{\%} MVC [−98.44 (43.54)° s−1 to −138.42 (73.29)° s−1, p < 0.01]. Apical rotations and rotational velocities were greater than basal during all conditions and intensities (all p < 0.01).ConclusionCycling increased LV twist to 30{\%} Wmax which then remained unchanged thereafter, whereas twisting velocities showed further increases to greater intensities. A novel finding is that LV twist was unaffected by incremental knee extension, yet systolic and diastolic twisting velocities augmented with isometric exercise.",
author = "Alexander Beaumont and Fergal Grace and Joanna Richards and John Hough and David Oxborough and Nicholas Sculthorpe",
year = "2016",
month = "12",
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doi = "10.1007/s40279-016-0644-4",
language = "English",
pages = "1--26",
journal = "Sports Medicine",
issn = "0112-1642",
publisher = "Springer",

}

Left Ventricular Speckle Tracking-Derived Cardiac Strain and Cardiac Twist Mechanics in Athlete : A Systematic Review and Meta-Analysis of Controlled Studies. / Beaumont, Alexander; Grace, Fergal; Richards, Joanna; Hough, John; Oxborough, David; Sculthorpe, Nicholas.

In: Sports Medicine, 06.12.2016, p. 1-26.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Left Ventricular Speckle Tracking-Derived Cardiac Strain and Cardiac Twist Mechanics in Athlete

T2 - A Systematic Review and Meta-Analysis of Controlled Studies

AU - Beaumont, Alexander

AU - Grace, Fergal

AU - Richards, Joanna

AU - Hough, John

AU - Oxborough, David

AU - Sculthorpe, Nicholas

PY - 2016/12/6

Y1 - 2016/12/6

N2 - PurposeThe objective of the present study was to investigate left ventricular (LV) twist mechanics in response to incremental cycling and isometric knee extension exercises.MethodsTwenty-six healthy male participants (age = 30.42 ± 6.17 years) were used to study peak twist mechanics at rest and during incremental semi-supine cycling at 30 and 60% work rate maximum (Wmax) and during short duration (15 s contractions) isometric knee extension at 40 and 75% maximum voluntary contraction (MVC), using two-dimensional speckle tracking echocardiography.ResultsData presented as mean ± standard deviation or median (interquartile range). LV twist increased from rest to 30% Wmax (13.21° ± 4.63° to 20.04° ± 4.76°, p < 0.001) then remained unchanged. LV systolic and diastolic twisting velocities progressively increased with exercise intensity during cycling from rest to 60% Wmax (twisting, 88.21° ± 20.51° to 209.05° ± 34.56° s−1, p < 0.0001; untwisting, −93.90 (29.62)° to −267.31 (104.30)° s−1, p < 0.0001). During the knee extension exercise, LV twist remained unchanged with progressive intensity (rest 13.40° ± 4.80° to 75% MVC 16.77° ± 5.54°, p > 0.05), whilst twisting velocity increased (rest 89.15° ± 21.77° s−1 to 75% MVC 124.32° ± 34.89° s−1, p < 0.01). Untwisting velocity remained unchanged from rest [−90.60 (27.19)° s−1] to 40% MVC (p > 0.05) then increased from 40 to 75% MVC [−98.44 (43.54)° s−1 to −138.42 (73.29)° s−1, p < 0.01]. Apical rotations and rotational velocities were greater than basal during all conditions and intensities (all p < 0.01).ConclusionCycling increased LV twist to 30% Wmax which then remained unchanged thereafter, whereas twisting velocities showed further increases to greater intensities. A novel finding is that LV twist was unaffected by incremental knee extension, yet systolic and diastolic twisting velocities augmented with isometric exercise.

AB - PurposeThe objective of the present study was to investigate left ventricular (LV) twist mechanics in response to incremental cycling and isometric knee extension exercises.MethodsTwenty-six healthy male participants (age = 30.42 ± 6.17 years) were used to study peak twist mechanics at rest and during incremental semi-supine cycling at 30 and 60% work rate maximum (Wmax) and during short duration (15 s contractions) isometric knee extension at 40 and 75% maximum voluntary contraction (MVC), using two-dimensional speckle tracking echocardiography.ResultsData presented as mean ± standard deviation or median (interquartile range). LV twist increased from rest to 30% Wmax (13.21° ± 4.63° to 20.04° ± 4.76°, p < 0.001) then remained unchanged. LV systolic and diastolic twisting velocities progressively increased with exercise intensity during cycling from rest to 60% Wmax (twisting, 88.21° ± 20.51° to 209.05° ± 34.56° s−1, p < 0.0001; untwisting, −93.90 (29.62)° to −267.31 (104.30)° s−1, p < 0.0001). During the knee extension exercise, LV twist remained unchanged with progressive intensity (rest 13.40° ± 4.80° to 75% MVC 16.77° ± 5.54°, p > 0.05), whilst twisting velocity increased (rest 89.15° ± 21.77° s−1 to 75% MVC 124.32° ± 34.89° s−1, p < 0.01). Untwisting velocity remained unchanged from rest [−90.60 (27.19)° s−1] to 40% MVC (p > 0.05) then increased from 40 to 75% MVC [−98.44 (43.54)° s−1 to −138.42 (73.29)° s−1, p < 0.01]. Apical rotations and rotational velocities were greater than basal during all conditions and intensities (all p < 0.01).ConclusionCycling increased LV twist to 30% Wmax which then remained unchanged thereafter, whereas twisting velocities showed further increases to greater intensities. A novel finding is that LV twist was unaffected by incremental knee extension, yet systolic and diastolic twisting velocities augmented with isometric exercise.

U2 - 10.1007/s40279-016-0644-4

DO - 10.1007/s40279-016-0644-4

M3 - Article

SP - 1

EP - 26

JO - Sports Medicine

JF - Sports Medicine

SN - 0112-1642

ER -