VALIDATION OF HEART RATE MONITOR POLAR RS800 FOR HEART RATE VARIABILITY ANALYSIS DURING EXERCISE

Autores

Hernando, D; Garatachea, N; Almeida, R; Casajus, J; Bailon, R

Revista

JOURNAL OF STRENGTH AND CONDITIONING RESEARCH

Año: 2018 Volumen: 32 (3) Páginas: 716-725

Editor:

LIPPINCOTT WILLIAMS & WILKINS

DOI:

10.1519/JSC.0000000000001662

Resumen

Heart rate variability (HRV) analysis during exercise is an interesting noninvasive tool to measure the cardiovascular response to the stress of exercise. Wearable heart rate monitors are a comfortable option to measure interbeat (RR) intervals while doing physical activities. It is necessary to evaluate the agreement between HRV parameters derived from the RR series recorded by wearable devices and those derived from an electrocardiogram (ECG) during dynamic exercise of low to high intensity. Twenty-three male volunteers performed an exercise stress test on a cycle ergometer. Subjects wore a Polar RS800 device, whereas ECG was also recorded simultaneously to extract the reference RR intervals. A time-frequency spectral analysis was performed to extract the instantaneous mean heart rate (HRM), and the power of low-frequency (PLF) and high-frequency (PHF) components, the latter centered on the respiratory frequency. Analysis was done in intervals of different exercise intensity based on oxygen consumption. Linear correlation, reliability, and agreement were computed in each interval. The agreement between the RR series obtained from the Polar device and from the ECG is high throughout the whole test although the shorter the RR is, the more differences there are. Both methods are interchangeable when analyzing HRV at rest. At high exercise intensity, HRM and PLF still presented a high correlation (rho > 0.8) and excellent reliability and agreement indices (above 0.9). However, the PHF measurements from the Polar showed reliability and agreement coefficients around 0.5 or lower when the level of the exercise increases (for levels of O-2 above 60\%).

Palabras clave

exercise ; stress ; test ; wearable ; heart ; rate ; device ; frequency ; domain ; analysis ; reliability ; agreement

Afiliación

Hernando, D (Reprint Author), Univ Zaragoza, Aragon Inst Engn Res I3A, Biomed Signal Interpretat & Computat Simulat BSIC, IIS Aragon, Zaragoza, Spain.
Hernando, D (Reprint Author), Bioengn Biomat & Nanomed Networking Biomed Res Ct, Zaragoza, Spain.
Hernando, David; Almeida, Rute; Bailon, Raquel, Univ Zaragoza, Aragon Inst Engn Res I3A, Biomed Signal Interpretat & Computat Simulat BSIC, IIS Aragon, Zaragoza, Spain.
Hernando, David; Almeida, Rute; Bailon, Raquel, Bioengn Biomat & Nanomed Networking Biomed Res Ct, Zaragoza, Spain.
Garatachea, Nuria; Casajus, Jose A., Univ Zaragoza, Hlth & Sport Sci Fac, Physiatry & Nursing Dept,CITA, AgriFood Inst Aragon IA2,GENUD Growth Exercise Nu, Zaragoza, Spain.
Garatachea, Nuria; Casajus, Jose A., Univ Porto, CMUP, FCUP, Sci Fac,Math Ctr,Aragon Inst Hlth Res IIS Aragon, Porto, Portugal.
Garatachea, Nuria; Casajus, Jose A., Univ Porto, CMUP, Physiopathol Obes & Nutr Networking Biomed Res Ct, Sci Fac,Math Ctr,FCUP, Porto, Portugal.
Almeida, Rute, Univ Porto, CMUP, FCUP, Sci Fac,Math Ctr,Math Dept, Porto, Portugal.