Estimation of Heart Rate Recovery after Stair Climbing Using a Wrist-Worn Device

Abstract

Heart rate recovery (HRR) after physical exercise is a convenient method to assess cardiovascular autonomic function. Since stair climbing is a common daily activity, usually followed by a slow walking or rest, this type of activity can be considered as an alternative HRR test. The present study explores the feasibility to estimate HRR parameters after stair climbing using a wrist-worn device with embedded photoplethysmography and barometric pressure sensors. A custom-made wrist-worn device, capable of acquiring heart rate and altitude, was used to estimate the time-constant of exponential decay τ , the short-term time constant S , and the decay of heart rate in 1 min D . Fifty-four healthy volunteers were instructed to climb the stairs at three different climbing rates. When compared to the reference electrocardiogram, the absolute and percentage errors were found to be ≤ 21.0 s (≤ 52.7%) for τ , ≤ 0.14 (≤ 19.2%) for S , and ≤ 7.16 bpm (≤ 20.7%) for D in 75% of recovery phases available for analysis. The proposed approach to monitoring HRR parameters in an unobtrusive way may complement information provided by personal health monitoring devices (e.g., weight loss, physical activity), as well as have clinical relevance when evaluating the efficiency of cardiac rehabilitation program outside the clinical setting.

Validade e reprodutibilidade de dispositivos e aplicativos móveis para avaliar e monitorar a aptidão cardiorrespiratória de adultos: uma revisão sistemática

“…Dos nove estudos selecionados para compor a revisão, cinco foram desenvolvidos no continente europeu (COLLINS et al, 2019;KANTOCH, 2018;MIDDELWEERD et al, 2017;PRESSET et al, 2018;SOKAS et al, 2019), um na Ásia (LEE et al, 2015), um na América do Norte (BELTRAME et al, 2017), um na África (RENSBURG et al, 2016) Os estudos fizeram uso de medidas alternativas aos dados gerados pelos dispositivos e aplicativos. Quatro estudos verificaram a precisão de aplicativos de monitoramento da AF para smartphones (GANESAN et al, 2016;MI-DDELWEERD et al, 2017;PRESSET et al, 2018;RENSBURG et al, 2016) e, cinco estudos concentraram-se em analisar a aplicabilidade de dispositivos vestíveis (BELTRAME et al, 2017;COLLINS et al, 2019;KANTOCH, 2018;LEE et al, 2015;SOKAS et al, 2019).…”

“…O Quadro 2 apresenta uma síntese de todos os estudos incluídos na revisão, em relação à validade dos aplicativos e dispositivos, sete estudos apresentam resultados satisfatórios referentes aos dados dos equipamentos, indicando alta correlação entre os resultados do equipamento avaliado é o método comparativo (RENSBURG et al, 2016), boa precisão do equipamento (BELTRAME et al, 2017;LEE et al, 2015;KAŃTOCH, 2018;PRESSET et al, 2018;SOKAS et al, 2019) e validade dos dados gerados (GANESAN et al, 2016). Entretanto, dois estudos sugeriram prudência no uso dos equipamentos (COLLINS et al, 2019;MIDDELWE-ERD et al, 2017).…”

Diabetic Vascular Damage: Review of Pathogenesis and Possible Evaluation Technologies

“…3) Non-invasive, unobtrusive and inexpensive technologies would be the most attractive for early diagnosis and screening. Emerging wearables, such as multimodal smartwatch [109] with integrated ECG, PPG and galvanic skin response signal and data processing shows promise for monitoring and screening. 4) Mostly all contemporary devices are capable of digital data processing and generating vast amount of valuable information.…”

Wearable Photoplethysmography for Cardiovascular Monitoring

“…Currently, HRR is only routinely measured in exercise stress tests. It may be possible to obtain similar measurements using smart wearables [ 246 ] in everyday activities, such as stair climbing [ 247 ], or after intense exercise [ 248 ].…”