Accuracy of the Suunto system for heart rate variability analysis during a tilt-test

Abstract The aim of this study was to assess the accuracy of the Suunto Memory Belt (SMB) heart rate (HR) recorder compared with that of a standard electrocardiogram system (ECG) and compared the heart rate variability (HRV) analyses conducted with each dataset. Heart rate was simultaneously recorded using ECG and SMB in fifteen participants [mean (SD) age 27.3 (13.9) years, height 177.4 (10.2) cm and body mass 66.8 (15.3) kg] during an orthostatic tilt test. The two datasets were analysed to compare the number and type of R-R interval artefacts and indices from HRV (RMSSD, pNN50, HF, LF, SD1, and SD2). For artefact detection, 16,742 R-R intervals were analysed during all recordings. Only 18 artefacts, 9 type 1 (long R-R interval) and 9 type 2 (short R-R interval), were identified with the SMB. Bland-Altman analysis indicated excellent accuracy for the SMB, with limits of agreement of -2.00 and +1.94 ms. Further, the reference and SMB systems were strongly correlated. The similarity between each device indicated that the SMB could reliably record R-R intervals.Resumo Este estudo foi realizado com o objetivo de avaliar a precisão das medidas de Frequencia cardíaca (FC) e da variabilidade da FC (VFC) obtidas através de um cardiofrequencímetro Suunto Memory Belt, em comparação com um sistema de eletrocardiograma (ECG) de referência. Quinze participantes [média (desvio padrão), idade de 27,3 (13,9) anos, estatura de 177,4 (10,2) cm e massa corporal de 66,8 (15,3) kg] for...
Source: Revista Brasileira de Cineantropometria e Desempenho Humano - Category: Sports Medicine Source Type: research