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Automatic Near Real-Time Outlier Detection and Correction in Cardiac Interbeat Interval Series for Heart Rate Variability Analysis: Singular Spectrum Analysis-Based Approach

While, ideally, all components of an R-R series originate from the SA node, the actual R-R series in both healthy and diseased subjects are contaminated by outliers due to artifacts and heart rhythm disturbances such as ectopic beats (ie, heart beats whose

Michael Lang

JMIR Biomed Eng 2019;4(1):e10740

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Estimating Heart Rate, Energy Expenditure, and Physical Performance With a Wrist Photoplethysmographic Device During Running

However, Wallen et al observed poor accuracy in an EE estimation of four OHR smart watches as compared with indirect calorimetry [13].Physical performance may be estimated by the maximal oxygen consumption (VO2Max) of a person.

Jakub Parak, Maria Uuskoski, Jan Machek, Ilkka Korhonen

JMIR Mhealth Uhealth 2017;5(7):e97

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Community Engagement in the Development of an mHealth-Enabled Physical Activity and Cardiovascular Health Intervention (Step It Up): Pilot Focus Group Study

Joniqua Nashae Ceasar, Sophie Elizabeth Claudel, Marcus R Andrews, Kosuke Tamura, Valerie Mitchell, Alyssa T Brooks, Tonya Dodge, Sherine El-Toukhy, Nicole Farmer, Kimberly Middleton, Melanie Sabado-Liwag, Melissa Troncoso, Gwenyth R Wallen, Tiffany M Powell-Wiley

JMIR Form Res 2019;3(1):e10944

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Natural Language Processing Reveals Vulnerable Mental Health Support Groups and Heightened Health Anxiety on Reddit During COVID-19: Observational Study

Using k-means clustering, analysis of themes present in r/Anxiety, r/Depression, and r/PTSD found that the r/Anxiety and r/PTSD subreddits shared more common terms with each other than with the r/Depression subreddit [13].Reddit can also help monitor discussions

Daniel M Low, Laurie Rumker, Tanya Talkar, John Torous, Guillermo Cecchi, Satrajit S Ghosh

J Med Internet Res 2020;22(10):e22635

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Digital Food Records in Community-Based Interventions: Mixed-Methods Pilot Study

Lauren A. Fowler, Leah R Yingling, Alyssa T Brooks, Gwenyth R Wallen, Marlene Peters-Lawrence, Michael McClurkin, Kenneth L Wiley Jr, Valerie M Mitchell, Twanda D. Johnson, Kendrick E Curry, Allan A Johnson, Avis P Graham, Lennox A Graham, Tiffany M. Powell-Wiley

JMIR Mhealth Uhealth 2018;6(7):e160

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Global Research on Coronaviruses: An R Package

Second, the convergence in coding languages, in particular functional languages such as R (R Foundation for Statistical Computing), Python (Python Software Foundation), or Julia, has helped facilitate the communications between researchers.

Thierry Warin

J Med Internet Res 2020;22(8):e19615

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Community Engagement to Optimize the Use of Web-Based and Wearable Technology in a Cardiovascular Health and Needs Assessment Study: A Mixed Methods Approach

Leah R Yingling, Alyssa T Brooks, Gwenyth R Wallen, Marlene Peters-Lawrence, Michael McClurkin, Rebecca Cooper-McCann, Kenneth L Wiley Jr, Valerie Mitchell, Johnetta N Saygbe, Twanda D Johnson, Rev. Kendrick E Curry, Allan A Johnson, Avis P Graham, Lennox A Graham, Tiffany M Powell-Wiley

JMIR Mhealth Uhealth 2016;4(2):e38

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Transmission Dynamics of the COVID-19 Epidemic at the District Level in India: Prospective Observational Study

Further, the serial interval data were fitted to weibull, log-normal, log-logistic, and generalized gamma distributions using the Flexsurv package in R software version 4.0.0 [18].

Suman Saurabh, Mahendra Kumar Verma, Vaishali Gautam, Nitesh Kumar, Akhil Dhanesh Goel, Manoj Kumar Gupta, Pankaj Bhardwaj, Sanjeev Misra

JMIR Public Health Surveill 2020;6(4):e22678

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Usefulness of Modern Activity Trackers for Monitoring Exercise Behavior in Chronic Cardiac Patients: Validation Study

Although they found a high correlation between Fitbit and the criterion measure for minutes of MVPA (r=0.74 total population, r=0.71 cardiac patients), ICC’s and Bland-Altman analysis were not performed to evaluate accuracy.Possible causes for the limited accuracy

Cyrille Herkert, Jos Johannes Kraal, Eline Maria Agnes van Loon, Martijn van Hooff, Hareld Marijn Clemens Kemps

JMIR Mhealth Uhealth 2019;7(12):e15045

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Applying Computerized Adaptive Testing to the Negative Acts Questionnaire-Revised: Rasch Analysis of Workplace Bullying

The NAQ-R was professionally translated into Chinese by authors in Taiwan using a back-translation technique (English-Chinese-English).

Shu-Ching Ma, Tsair-Wei Chien, Hsiu-Hung Wang, Yu-Chi Li, Mei-Shu Yui

J Med Internet Res 2014;16(2):e50

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