Walter Karlen

Affiliations

Mobile Health Systems Lab, Institute for Robotics and Intelligent Systems, Department of Health Sciences and Technology, ETH Zurich, Switzerland.

ORCID: 0000-0001-8643-3074

Publications (31)

Physiologically driven, altitude-adaptive model for the interpretation of pediatric oxygen saturation at altitudes above 2,000 m a.s.l.

Journal of applied physiology (Bethesda, Md. : 1985)

Avec: Laura Tüshaus , Monica Moreo , Jia Zhang , Stella Maria Hartinger , Daniel Mäusezahl , Walter Karlen

Forecasting intracranial hypertension using multi-scale waveform metrics.

Physiological measurement

Avec: Matthias Hüser , Adrian Kündig , Walter Karlen , Valeria De Luca , Martin Jaggi

A Protocol for Comparing Dry and Wet EEG Electrodes During Sleep.

Frontiers in neuroscience

Avec: Sven Leach , Ku-Young Chung , Laura Tüshaus , Reto Huber , Walter Karlen

A Deep Learning Approach to Diagnosing Multiple Sclerosis from Smartphone Data.

IEEE journal of biomedical and health informatics

Avec: Patrick Schwab , Walter Karlen

Validation of Fitbit Charge 2 Sleep and Heart Rate Estimates Against Polysomnographic Measures in Shift Workers: Naturalistic Study.

Journal of medical Internet research

Avec: Benjamin Stucky , Ian Clark , Yasmine Azza , Walter Karlen , Peter Achermann , Birgit Kleim , Hans-Peter Landolt

Auditory deep sleep stimulation in older adults at home: a randomized crossover trial.

Communications medicine

Avec: Caroline Lustenberger , M Laura Ferster , Stephanie Huwiler , Luzius Brogli , Esther Werth , Reto Huber , Walter Karlen

Sleep and cardiac autonomic modulation in older adults: Insights from an at-home study with auditory deep sleep stimulation.

Journal of sleep research

Avec: Stephanie Huwiler , M Laura Ferster , Luzius Brogli , Reto Huber , Walter Karlen , Caroline Lustenberger

Addressing the unresolved challenge of quantifying skiing exposure-A proof of concept using smartphone sensors.

Frontiers in sports and active living

Avec: Anita Meinke , Jörg Spörri , Luzius Brogli , Patrick Schwab , Walter Karlen

Wearable bioimpedance for continuous and context-aware clinical monitoring.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

Avec: Abhilash Guru Dutt , Michaela Verling , Walter Karlen

Remote health diagnosis and monitoring in the time of COVID-19.

Physiological measurement

Avec: Joachim A Behar , Chengyu Liu , Kevin Kotzen , Kenta Tsutsui , Valentina D A Corino , Janmajay Singh , Marco A F Pimentel , Philip Warrick , Sebastian Zaunseder , Fernando Andreotti , David Sebag , Georgy Kopanitsa , Patrick E McSharry , Walter Karlen , Chandan Karmakar , Gari D Clifford

Neuromodulation by means of phase-locked auditory stimulation affects key marker of excitability and connectivity during sleep.

Sleep

Avec: Georgia Sousouri , Elena Krugliakova , Jelena Skorucak , Sven Leach , Sophia Snipes , Maria Laura Ferster , Giulia Da Poian , Walter Karlen , Reto Huber

Diurnal variations in multi-sensor wearable-derived sleep characteristics in morning- and evening-type shift workers under naturalistic conditions.

Chronobiology international

Avec: Ian Clark , Benjamin Stucky , Yasmine Azza , Patrick Schwab , Stefan Müller , Daniel Weibel , Daniel Button , Walter Karlen , Erich Seifritz , Birgit Kleim , Hans-Peter Landolt

Feedback on Trunk Movements From an Electronic Game to Improve Postural Balance in People With Nonspecific Low Back Pain: Pilot Randomized Controlled Trial.

JMIR serious games

Avec: Anita Meinke , Rick Peters , Ruud H Knols , Jaap Swanenburg , Walter Karlen

Automated False Alarm Reduction in a Real-Life Intensive Care Setting Using Motion Detection.

Neurocritical care

Avec: Carl Muroi , Sando Meier , Valeria De Luca , David J Mack , Christian Strässle , Patrick Schwab , Walter Karlen , Emanuela Keller

Exergaming Using Postural Feedback From Wearable Sensors and Exercise Therapy to Improve Postural Balance in People With Nonspecific Low Back Pain: Protocol for a Factorial Pilot Randomized Controlled Trial.

JMIR research protocols

Avec: Anita Meinke , Rick Peters , Ruud Knols , Walter Karlen , Jaap Swanenburg

Wound Image Quality From a Mobile Health Tool for Home-Based Chronic Wound Management With Real-Time Quality Feedback: Randomized Feasibility Study.

JMIR mHealth and uHealth

Avec: Jia Zhang , Carina Mihai , Laura Tüshaus , Gaetano Scebba , Oliver Distler , Walter Karlen

Benchmarking Real-Time Algorithms for In-Phase Auditory Stimulation of Low Amplitude Slow Waves With Wearable EEG Devices During Sleep.

IEEE transactions on bio-medical engineering

Avec: Maria Laura Ferster , Giulia Da Poian , Kiran Menachery , Simon J Schreiner , Caroline Lustenberger , Angelina Maric , Reto Huber , Christian R Baumann , Walter Karlen

Technical feasibility of using auditory phase-targeted stimulation after pediatric severe traumatic brain injury in an intensive care setting.

BMC pediatrics

Avec: Joëlle Ninon Albrecht , Valeria Jaramillo , Reto Huber , Walter Karlen , Christian Rainer Baumann , Barbara Brotschi

The association of fear of movement and postural sway in people with low back pain.

Frontiers in psychology

Avec: Anita Meinke , Cinzia Maschio , Michael L Meier , Walter Karlen , Jaap Swanenburg

Real-Time Detection of Sleep Arousals with a Head-Mounted Accelerometer.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

Avec: Tugce Canbaz Gumussu , Giulia Da Poian , Silvano Cortesi , Walter Karlen

Multispectral Video Fusion for Non-Contact Monitoring of Respiratory Rate and Apnea.

IEEE transactions on bio-medical engineering

Avec: Gaetano Scebba , Giulia Da Poian , Walter Karlen

How stress affects sleep and mental health: nocturnal heart rate increases during prolonged stress and interacts with childhood trauma exposure to predict anxiety.

Sleep

Avec: Yasmine Azza , Marcus Grueschow , Walter Karlen , Erich Seifritz , Birgit Kleim

Immuno-gold silver staining assays on capillary-driven microfluidics for the detection of malaria antigens.

Biomedical microdevices

Avec: Ngoc M Pham , Sebastian Rusch , Yuksel Temiz , Hans-Peter Beck , Walter Karlen , Emmanuel Delamarche

A factorial cluster-randomised controlled trial combining home-environmental and early child development interventions to improve child health and development: rationale, trial design and baseline findings.

BMC medical research methodology

Avec: Stella M Hartinger , Nestor Nuño , Jan Hattendorf , Hector Verastegui , Walter Karlen , Mariela Ortiz , Daniel Mäusezahl

Injury risks among elite competitive alpine skiers are underestimated if not registered prospectively, over the entire season and regardless of whether requiring medical attention.

Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA

Avec: Stefan Fröhlich , Moritz Helbling , Sandro F Fucentese , Walter Karlen , Walter O Frey , Jörg Spörri

A transformation of oxygen saturation (the saturation virtual shunt) to improve clinical prediction model calibration and interpretation.

Pediatric research

Avec: Guohai Zhou , Walter Karlen , Rollin Brant , Matthew Wiens , Niranjan Kissoon , J Mark Ansermino

Pulse transit time based respiratory rate estimation with singular spectrum analysis.

Medical & biological engineering & computing

Avec: Xiaorong Ding , Bryan P Yan , Walter Karlen , Yuan-Ting Zhang , Hon Ki Tsang

Ethics review of big data research: What should stay and what should be reformed?

BMC medical ethics

Avec: Agata Ferretti , Marcello Ienca , Mark Sheehan , Alessandro Blasimme , Edward S Dove , Bobbie Farsides , Phoebe Friesen , Jeff Kahn , Walter Karlen , Peter Kleist , S Matthew Liao , Camille Nebeker , Gabrielle Samuel , Mahsa Shabani , Minerva Rivas Velarde , Effy Vayena

Covariance intersection to improve the robustness of the photoplethysmogram derived respiratory rate.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

Avec: Jia Zhang , Gaetano Scebba , Walter Karlen

Boosting Recovery During Sleep by Means of Auditory Stimulation.

Frontiers in neuroscience

Avec: Elena Krugliakova , Jelena Skorucak , Georgia Sousouri , Sven Leach , Sophia Snipes , Maria Laura Ferster , Giulia Da Poian , Walter Karlen , Reto Huber

Assessment of neonatal respiratory rate variability.

Journal of clinical monitoring and computing

Avec: Jesse Coleman , Amy Sarah Ginsburg , William M Macharia , Roseline Ochieng , Dorothy Chomba , Guohai Zhou , Dustin Dunsmuir , Walter Karlen , J Mark Ansermino

Réseau de co-auteurs

Reto Huber 7 collaborations

Giulia Da Poian 5 collaborations

Patrick Schwab 4 collaborations

Anita Meinke 4 collaborations

Laura Tüshaus 3 collaborations

Jia Zhang 3 collaborations

Sven Leach 3 collaborations

Yasmine Azza 3 collaborations

Birgit Kleim 3 collaborations

Caroline Lustenberger 3 collaborations

Luzius Brogli 3 collaborations

Maria Laura Ferster 3 collaborations

Jaap Swanenburg 3 collaborations

Gaetano Scebba 3 collaborations

Daniel Mäusezahl 2 collaborations

Valeria De Luca 2 collaborations

Benjamin Stucky 2 collaborations

Ian Clark 2 collaborations

Hans-Peter Landolt 2 collaborations

M Laura Ferster 2 collaborations

Stephanie Huwiler 2 collaborations

Jörg Spörri 2 collaborations

Georgia Sousouri 2 collaborations

Elena Krugliakova 2 collaborations

Jelena Skorucak 2 collaborations

Sophia Snipes 2 collaborations

Erich Seifritz 2 collaborations

Rick Peters 2 collaborations

Guohai Zhou 2 collaborations

J Mark Ansermino 2 collaborations

Monica Moreo 1 collaboration

Stella Maria Hartinger 1 collaboration

Matthias Hüser 1 collaboration

Adrian Kündig 1 collaboration

Martin Jaggi 1 collaboration

Ku-Young Chung 1 collaboration

Peter Achermann 1 collaboration

Esther Werth 1 collaboration

Abhilash Guru Dutt 1 collaboration

Michaela Verling 1 collaboration

Joachim A Behar 1 collaboration

Chengyu Liu 1 collaboration

Kevin Kotzen 1 collaboration

Kenta Tsutsui 1 collaboration

Valentina D A Corino 1 collaboration

Janmajay Singh 1 collaboration

Marco A F Pimentel 1 collaboration

Philip Warrick 1 collaboration

Sebastian Zaunseder 1 collaboration

Fernando Andreotti 1 collaboration

David Sebag 1 collaboration

Georgy Kopanitsa 1 collaboration

Patrick E McSharry 1 collaboration

Chandan Karmakar 1 collaboration

Gari D Clifford 1 collaboration

Stefan Müller 1 collaboration

Daniel Weibel 1 collaboration

Daniel Button 1 collaboration

Ruud H Knols 1 collaboration

Carl Muroi 1 collaboration

Sando Meier 1 collaboration

David J Mack 1 collaboration

Christian Strässle 1 collaboration

Emanuela Keller 1 collaboration

Ruud Knols 1 collaboration

Carina Mihai 1 collaboration

Oliver Distler 1 collaboration

Kiran Menachery 1 collaboration

Simon J Schreiner 1 collaboration

Angelina Maric 1 collaboration

Christian R Baumann 1 collaboration

Joëlle Ninon Albrecht 1 collaboration

Valeria Jaramillo 1 collaboration

Christian Rainer Baumann 1 collaboration

Barbara Brotschi 1 collaboration

Cinzia Maschio 1 collaboration

Michael L Meier 1 collaboration

Tugce Canbaz Gumussu 1 collaboration

Silvano Cortesi 1 collaboration

Marcus Grueschow 1 collaboration

Ngoc M Pham 1 collaboration

Sebastian Rusch 1 collaboration

Yuksel Temiz 1 collaboration

Hans-Peter Beck 1 collaboration

Emmanuel Delamarche 1 collaboration

Stella M Hartinger 1 collaboration

Nestor Nuño 1 collaboration

Jan Hattendorf 1 collaboration

Hector Verastegui 1 collaboration

Mariela Ortiz 1 collaboration

Stefan Fröhlich 1 collaboration

Moritz Helbling 1 collaboration

Sandro F Fucentese 1 collaboration

Walter O Frey 1 collaboration

Rollin Brant 1 collaboration

Matthew Wiens 1 collaboration

Niranjan Kissoon 1 collaboration

Xiaorong Ding 1 collaboration

Bryan P Yan 1 collaboration

Yuan-Ting Zhang 1 collaboration

Hon Ki Tsang 1 collaboration

Agata Ferretti 1 collaboration

Marcello Ienca 1 collaboration

Mark Sheehan 1 collaboration

Alessandro Blasimme 1 collaboration

Edward S Dove 1 collaboration

Bobbie Farsides 1 collaboration

Phoebe Friesen 1 collaboration

Jeff Kahn 1 collaboration

Peter Kleist 1 collaboration

S Matthew Liao 1 collaboration

Camille Nebeker 1 collaboration

Gabrielle Samuel 1 collaboration

Mahsa Shabani 1 collaboration

Minerva Rivas Velarde 1 collaboration

Effy Vayena 1 collaboration

Jesse Coleman 1 collaboration

Amy Sarah Ginsburg 1 collaboration

William M Macharia 1 collaboration

Roseline Ochieng 1 collaboration

Dorothy Chomba 1 collaboration

Dustin Dunsmuir 1 collaboration