Comparison of heart rate monitoring accuracy between chest strap and vest during physical training and implications on training decisions

Jakub Parak, Mikko Salonen, Tero Myllymäki, Ilkka Korhonen

    Research output: Contribution to journalArticleScientificpeer-review

    14 Citations (Scopus)
    90 Downloads (Pure)

    Abstract

    Heart rate (HR) and heart rate variability (HRV) based physiological metrics such as Excess Post‐exercise Oxygen Consumption (EPOC), Energy Expenditure (EE), and Training Impulse (TRIMP) are widely utilized in coaching to monitor and optimize an athlete’s training load. Chest straps, and re-cently also dry electrodes integrated to special sports vests, are used to monitor HR during sports. Mechanical design, placement of electrodes, and ergonomics of the sensor affect the measured signal quality and artefacts. To evaluate the impact of the sensor mechanical design on the accuracy of the HR/HRV and further on to estimation of EPOC, EE, and TRIMP, we recorded HR and HRV from a chest strap and a vest with the same ECG sensor during supervised exercise protocol. A 3‐lead clinical Holter ECG was used as a reference. Twenty‐five healthy subjects (six females) participated. Mean absolute percentage error (MAPE) for HR was 0.76% with chest strap and 3.32% with vest. MAPE was 1.70% vs. 6.73% for EE, 0.38% vs. 8.99% for TRIMP and 3.90% vs. 54.15% for EPOC with chest strap and vest, respectively. Results suggest superior accuracy of chest strap over vest for HR and physiological metrics monitoring during sports.

    Original languageEnglish
    Article number8411
    JournalSensors
    Volume21
    Issue number24
    DOIs
    Publication statusPublished - 16 Dec 2021
    Publication typeA1 Journal article-refereed

    Keywords

    • Beat‐to‐beat detection
    • Chest strap
    • Energy expenditure
    • Excess post‐exercise oxygen consumption
    • Heart rate
    • Sport sensor
    • Training impulse
    • Vest

    Publication forum classification

    • Publication forum level 1

    ASJC Scopus subject areas

    • Analytical Chemistry
    • Information Systems
    • Atomic and Molecular Physics, and Optics
    • Biochemistry
    • Instrumentation
    • Electrical and Electronic Engineering

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