What does this research mean for the field?

A 5-week treadmill exercise program safely induces physical conditioning in dogs with acute myocardial infarction without causing arrhythmias, sudden death, or adverse structural heart changes. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To evaluate whether physical conditioning can be safely achieved following acute myocardial infarction and to identify any adverse cardiac outcomes.

April 1, 1968CirculationOpen Access

Effects of Physical Training in Dogs with Coronary Artery Ligation

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Why the study?

Does a 5-week treadmill-exercise program improve physical conditioning and is it safe in dogs with acute myocardial infarction?

Population

Dogs with acute myocardial infarction produced by coronary artery ligation

Comparison

5-weeks' treadmill-exercise program vs Inactivity

Design

Preclinical

Follow-up

5 weeks

Authors

EKEliezer KaplinskyTel Aviv University WHWilliam B. HoodGriffith University BMBrian P. McCarthyNew England Biolabs (United States)

Discussion

Member takes

Implication

Supports post-MI exercise safety in canine models; leaves open translation to human rehabilitation protocols.

Key Points

To evaluate whether physical conditioning can be safely achieved following acute myocardial infarction and to identify any adverse cardiac outcomes.
Induced acute myocardial infarction in dogs using surgical coronary artery ligation.
Compared animals assigned to a 5-week treadmill-exercise training regimen against inactive controls.
Exercised dogs tolerated the 5-week regimen well, experiencing zero episodes of arrhythmia or sudden death.
Trained animals demonstrated hallmarks of conditioning, including reduced exercise heart rate, lower cardiac output, diminished blood lactate accumulation, and blunted exercise-induced epinephrine spikes.
Postmortem examinations showed an absence of adverse structural remodeling, with no ventricular dilatation or aneurysm formation.

Structured PICO

Does a 5-week treadmill-exercise program improve physical conditioning and is it safe in dogs with acute myocardial infarction?

Population

Dogs with acute myocardial infarction produced by coronary artery ligation

Intervention

5-weeks' treadmill-exercise program

Comparator

Inactivity

Outcome

Physical conditioning (reduction in exercise heart rate, cardiac output, and blood lactate levels) and safety (arrhythmia, sudden death, ventricular dilatation, aneurysm formation)surrogate

A 5-week treadmill exercise program in a canine model of acute myocardial infarction is safe and effectively achieves physical conditioning without causing adverse cardiac remodeling.

Cite This Study

Kaplinsky et al. (1968) studied this question.

synapsesocial.com/papers/6a11e2c745487b7639a582dd https://doi.org/10.1161/01.cir.37.4.556

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Bookmark

Effects of Physical Training in Dogs with Coronary Artery Ligation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Effects of Physical Training in Dogs with Coronary Artery Ligation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider