Why the study?
Does correcting heart rate data errors during exercise provide a clinically meaningful benefit in older adults with hip fracture?
Does correcting heart rate data errors during exercise provide a clinically meaningful benefit in older adults with hip fracture?
Correcting heart rate data errors during exercise in older adults yields only a marginal change in average heart rate, suggesting that minor signal artifacts may not clinically impact treatment fidelity assessments.
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Negligible HR change after correction suggests limited clinical impact; leaves open whether automated detection suffices for fidelity assessments in exercise studies.
Heart rate (HR) by time curves could be useful as a measure of treatment fidelity. The purposes were to describe the frequency of common recording irregularities (e.g. errors) observed during exercise, validate a process to correct those errors, and determine whether there is a clinically meaningful benefit to data correction. 1895 exercise sessions from 69 older adults with hip fracture were inspected for errors in the placement of event markers (duration of exercise) and signal artifacts. Marker errors occurred in 33% of the participants, and corrected in 324 sessions. Signal artifacts occurred in 96% of the participants, and eliminated in 702 sessions. Computer code was 85% accurate in detecting signal artifacts, compared to 97% for investigators. HR was significantly higher after correction, but the average change was only 0.69 + 1.20 beats per minute. A HR monitor showing HR by time curves can be used to evaluate treatment fidelity during exercise.
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Mangione et al. (2018) studied this question.
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