Key result
Noninvasive measurements of total electromechanical systole and left ventricular ejection time during exercise demonstrated high reliability (r = 0.93 to 0.96) in healthy men.
Why the study?
Are noninvasive methods for measuring cardiac function reliable and reproducible during exercise in healthy men?
Population
20 healthy men, aged 24-56 yr
Design
Cross-sectional
Follow-up
2 separate days
Authors
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Supports noninvasive systolic time intervals during exercise in research; leaves open validation and clinical adoption.
Observational (n=20)
Are noninvasive methods for measuring cardiac function reliable and reproducible during exercise in healthy men?
Effect estimate: r = 0.93-0.96
Noninvasive methods for measuring cardiac function, including systolic time intervals and indirect cardiac output, are reliable and reproducible during moderate to heavy exercise in healthy men.
Wolfe et al. (1978) conducted an observational in Healthy (n=20). Noninvasive methods for measuring cardiac function was evaluated on Reliability coefficients for total electromechanical systole and left ventricular ejection time (r = 0.93-0.96). Noninvasive measurements of total electromechanical systole and left ventricular ejection time during exercise demonstrated high reliability (r = 0.93 to 0.96) in healthy men.
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