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June 5, 2018European Journal of Applied PhysiologyOpen Access

A significant overall reduction in LV longitudinal strain (-18 ± 1 to -17 ± 1%), strain rate, and twist (11.9 ± 2.2 to 8.7 ± 2.2°) was observed following strenuous endurance exercise (P < 0.01).

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Why the study?

Does prolonged endurance exercise reduce left ventricular function and mechanics?

Population

27 prospective studies of individuals undertaking prolonged endurance exercise over 2 hours in duration

Comparison

Prolonged endurance exercise (range 120-1740 min) vs Pre-exercise baseline

Design

Meta-analysis

Follow-up

Post-exercise

Authors

RLRachel N. LordCardiff Metropolitan UniversityVUVictor UtomiBlackpool Teaching Hospitals NHS Foundation TrustDODavid OxboroughCardiac Imaging

Discussion

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Overview

Transient LV dysfunction follows prolonged endurance exercise; extends prior data with speckle tracking but leaves clinical sequelae open.

Structured PICO

Does prolonged endurance exercise reduce left ventricular function and mechanics?

P
Population
27 prospective studies of individuals undertaking prolonged endurance exercise over 2 hours in duration
I
Intervention
Prolonged endurance exercise (range 120-1740 min)
C
Comparator
Pre-exercise baseline (pre-to-post-exercise comparison)
O
Outcome
Left ventricular (LV) function and mechanics (including longitudinal strain, strain rate, and twist)surrogate

Prolonged endurance exercise (>2 hours) is associated with a significant but likely transient reduction in left ventricular function and mechanics, including longitudinal strain and twist.

Cite This Study

Lord et al. (2018) studied this question.

synapsesocial.com/papers/6a702d9a8031ec7bb1dc2bc2https://doi.org/10.1007/s00421-018-3906-z
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Left ventricular strain and strain rate by 2D speckle tracking in chronic thromboembolic pulmonary hypertension before and after pulmonary thromboendarterectomy2010 · 16 citations
  2. 2Dilatation and Dysfunction of the Right Ventricle Immediately After Ultraendurance Exercise2011 · 162 citations
  3. 3Alteration in Left Ventricular Strains and Torsional Mechanics After Ultralong Duration Exercise in Athletes2009 · 84 citations
  4. 4“Exercise‐Induced Cardiac Fatigue”—A Review of the Echocardiographic Literature2010 · 112 citations
  5. 5Cardiac function following prolonged exercise: influence of age2011 · 10 citations