Validation of Oura ring energy expenditure and steps in laboratory and free-living

[1] Fridolfsson J(2021)Measurement of physical activity by shoe-based accelerometers—calibration and free-living validation Sensors. 21 2333-1845

[2] Arvidsson D(2020)Detecting sleep using heart rate and motion data from multisensor consumer-grade wearables, relative to wrist actigraphy and polysomnography Sleep. 43 zsaa045-1452

[3] Grau S(2019)Accuracy of consumer wearable heart rate measurement during an ecologically valid 24-hour period: intraindividual validation study JMIR mHealth uHealth 7 e10828-8

[4] Roberts DM(2017)Accelerometer data collection and processing criteria to assess physical activity and other outcomes: a systematic review and practical considerations Sports Med 47 1821-1739

[5] Schade MM(2022)Comparison of outcomes derived from the ActiGraph GT3X+ and the Axivity AX3 accelerometer to objectively measure 24-hour movement behaviors in adults: a cross-sectional study Int J Environ Res Public Health 19 271-558

[6] Mathew GM(2020)Feasible assessment of recovery and cardiovascular health: accuracy of nocturnal HR and HRV assessed via ring PPG in comparison to medical grade ECG Physiol Meas 41 04NT1-136

[7] Gartenberg D(2022)Accuracy assessment of Oura ring nocturnal heart rate and heart rate variability in comparison with electrocardiography in time and frequency domains: comprehensive analysis J Med Internet Res 24 e27487-10

[8] Buxton OM(2019)Re-examination of accelerometer data processing and calibration for the assessment of physical activity intensity Scand J Med Sci Sports 29 1442-35

[9] Nelson BW(2020)Concurrent validity of actigraph gt3x+ and axivity ax3 accelerometers for estimating physical activity and sedentary behavior J Measure Phys Behav 4 1-862

[10] Allen NB(2020)Sleep tracking of a commercially available smart ring and smartwatch against medical-grade Actigraphy in everyday settings: instrument validation study JMIR Mhealth Uhealth 8 e20465-783

[1] Fridolfsson J(2021)Measurement of physical activity by shoe-based accelerometers—calibration and free-living validation Sensors. 21 2333-1845

[2] Arvidsson D(2020)Detecting sleep using heart rate and motion data from multisensor consumer-grade wearables, relative to wrist actigraphy and polysomnography Sleep. 43 zsaa045-1452

[3] Grau S(2019)Accuracy of consumer wearable heart rate measurement during an ecologically valid 24-hour period: intraindividual validation study JMIR mHealth uHealth 7 e10828-8

[4] Roberts DM(2017)Accelerometer data collection and processing criteria to assess physical activity and other outcomes: a systematic review and practical considerations Sports Med 47 1821-1739

[5] Schade MM(2022)Comparison of outcomes derived from the ActiGraph GT3X+ and the Axivity AX3 accelerometer to objectively measure 24-hour movement behaviors in adults: a cross-sectional study Int J Environ Res Public Health 19 271-558

[6] Mathew GM(2020)Feasible assessment of recovery and cardiovascular health: accuracy of nocturnal HR and HRV assessed via ring PPG in comparison to medical grade ECG Physiol Meas 41 04NT1-136

[7] Gartenberg D(2022)Accuracy assessment of Oura ring nocturnal heart rate and heart rate variability in comparison with electrocardiography in time and frequency domains: comprehensive analysis J Med Internet Res 24 e27487-10

[8] Buxton OM(2019)Re-examination of accelerometer data processing and calibration for the assessment of physical activity intensity Scand J Med Sci Sports 29 1442-35

[9] Nelson BW(2020)Concurrent validity of actigraph gt3x+ and axivity ax3 accelerometers for estimating physical activity and sedentary behavior J Measure Phys Behav 4 1-862

[10] Allen NB(2020)Sleep tracking of a commercially available smart ring and smartwatch against medical-grade Actigraphy in everyday settings: instrument validation study JMIR Mhealth Uhealth 8 e20465-783