Why the study?
Does a conventional 24-hour ECG recording system with 128 Hz sampling frequency accurately measure new dynamic components of HRV compared to a 1-ms timing accuracy QRS detector in healthy subjects and MI patients?
Does a conventional 24-hour ECG recording system with 128 Hz sampling frequency accurately measure new dynamic components of HRV compared to a 1-ms timing accuracy QRS detector in healthy subjects and MI patients?
Conventional Holter recordings with 128 Hz sampling frequency may introduce significant errors in the analysis of new dynamic HRV parameters, particularly in patients with low total HRV.
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Conventional 128 Hz Holter may bias dynamic HRV measures at low HRV; leaves open optimal sampling standards for research.
Tapanainen et al. (1999) studied this question.
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