September 1, 1977Circulation
A study of left ventricular function in coronary patients before and after physical training.
Why the study?
Does a physical training program improve left ventricular function in patients recovering from myocardial infarction or suffering from angina?
Population
n=15 subjects recovering from a myocardial infarction or suffering from angina
Comparison
Physical training program consisting of three… vs Baseline (before physical training)
Design
Cohort
Follow-up
two months
Authors
Discussion
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Implication
Supports capacity gains with training in post-MI patients; leaves open direct LV effects pending randomized trials.
Key Points
- The aim is to evaluate the impact of a physical training program on left ventricular function in patients recovering from myocardial infarction or angina.
- Fifteen subjects completing a maximum effort test on a bicycle ergometer before and after a two-month physical training program.
- Training consisted of three sessions of 60 to 75 minutes each week.
- Hemodynamic and angiographic assessments were conducted pre- and post-training.
- Physical capacity increased by 17% (P < 0.02) post-training.
- Heart rate decreased by 13% and blood pressure by 7% (P < 0.01) with similar effort.
- No significant changes were observed in left ventricular parameters or contractility in the total group or subgroups.
Structured PICO
Does a physical training program improve left ventricular function in patients recovering from myocardial infarction or suffering from angina?
P
Population
n=15 subjects recovering from a myocardial infarction or suffering from angina
I
Intervention
Physical training program consisting of three sessions of 60 to 75 min each week for two months
C
Comparator
Baseline (before physical training)
O
Outcome
Left ventricular function (left ventricular end-diastolic pressure, ventricular volume, ejection fraction, VCF, percentage of shortening and segmental contractility)surrogate
A two-month physical training program improves physical capacity but has no direct beneficial or detrimental influence on myocardial function in coronary patients.
Cite This Study
Letac et al. (1977) studied this question.