2025

• Pellano, Kimji Nuneza; Strumke, Inga; Groos, Daniel; Adde, Lars; Ihlen, Espen Alexander Furst. (2025) Evaluating Explainable AI Methods in Deep Learning Models for Early Detection of Cerebral Palsy. IEEE Access
  Academic article
• Tempel, Felix Ernst Friedrich; Ihlen, Espen Alexander Furst; Adde, Lars; Strumke, Inga. (2025) Explaining Human Activity Recognition with SHAP: Validating insights with perturbation and quantitative measures. Computers in Biology and Medicine
  Academic article
• Tempel, Felix Ernst Friedrich; Ihlen, Espen Alexander Furst; Strumke, Inga. (2025) Lightweight Neural Architecture Search for Cerebral Palsy Detection. IEEE conference proceedings IEEE conference proceedings
  Academic anthology/Conference proceedings

2024

• Pellano, Kimji Nuneza; Strumke, Inga; Ihlen, Espen Alexander Furst. (2024) From Movements to Metrics: Evaluating Explainable AI Methods in Skeleton-Based Human Activity Recognition. Sensors
  Academic article
• Tempel, Felix Ernst Friedrich; Ihlen, Espen Alexander Furst; Strumke, Inga. (2024) AutoGCN-Toward Generic Human Activity Recognition With Neural Architecture Search. IEEE Access
  Academic article

2022

• Groos, Daniel; Adde, Lars; Støen, Ragnhild; Ramampiaro, Heri; Ihlen, Espen Alexander F.. (2022) Towards human-level performance on automatic pose estimation of infant spontaneous movements. Computerized Medical Imaging and Graphics
  Academic article
• Groos, Daniel; Adde, Lars; Aubert, Sindre Aarnes; Boswell, Lynn; De Regnier, Raye-Ann; Fjørtoft, Toril Larsson. (2022) Development and Validation of a Deep Learning Method to Predict Cerebral Palsy from Spontaneous Movements in Infants at High Risk. JAMA Network Open
  Academic article

2021

• Groos, Daniel; Adde, Lars; Støen, Ragnhild; Ramampiaro, Heri; Ihlen, Espen Alexander F.. (2021) New automatic, efficient, and highly precise tracking of infant spontaneous movements. Developmental Medicine & Child Neurology
  Abstract
• Goihl, Tobias; Ihlen, Espen Alexander F.; Bardal, Ellen Marie; Ustad, Astrid; Roeleveld, Karin; Brændvik, Siri Merete. (2021) Effects of Ankle-Foot Orthoses on acceleration and energy cost of walking in children and adolescents with cerebral palsy. Prosthetics and orthotics international
  Academic article
• Awais, Muhammad; Chiari, Lorenzo; Ihlen, Espen Alexander F.; Helbostad, Jorunn L.; Palmerini, Luca. (2021) Classical machine learning versus deep learning for the older adults free-living activity classification. Sensors
  Academic article
• Groos, Daniel; Adde, Lars; Aubert, Sindre Aarnes; Haukeland, Andreas; Ramampiaro, Heri; Støen, Ragnhild. (2021) Fully automated clinical movement analysis from videos using skeleton-based deep learning. Gait & Posture
  Abstract
• Elfmark, Ola; Ettema, Gertjan; Groos, Daniel; Ihlen, Espen Alexander F.; Velta, Rune; Haugen, Per. (2021) Performance analysis in ski jumping with a differential global navigation satellite system and video-based pose estimation. Sensors
  Academic article
• Adde, Lars; Brown, Annemette; van den Broeck, Christine; DeCoen, Kris; Eriksen, Beate Horsberg; Fjørtoft, Toril Larsson. (2021) In-Motion-App for remote General Movement Assessment: a multi-site observational study. BMJ Open
  Academic article

2020

• Groos, Daniel; Adde, Lars; Ihlen, Espen Alexander F.. (2020) Approaching human precision on automatic markerless tracking of human movements. Gait & Posture
  Abstract
• Bergquist, Ronny; Nerz, Corinna; Taraldsen, Kristin; Mellone, Sabato; Ihlen, Espen Alexander F.; Vereijken, Beatrix. (2020) Predicting Advanced Balance Ability and Mobility with an Instrumented Timed Up and Go Test. Sensors
  Academic article
• Groos, Daniel; Ramampiaro, Heri; Ihlen, Espen Alexander F.. (2020) EfficientPose: Scalable single-person pose estimation. Applied intelligence (Boston)
  Academic article

2019

• Bourke, Alan; Ihlen, Espen Alexander Furst; Helbostad, Jorunn Hege Lægdheim. (2019) Validation of the activpal3 in free-living and laboratory scenarios for the measurement of physical activity, stepping, and transitions in older adults. Journal for the Measurement of Physical Behaviour (JMPB)
  Academic article
• Awais, Muhammad; Chiari, Lorenzo; Ihlen, Espen Alexander F.; Helbostad, Jorunn L.; Palmerini, Luca. (2019) Physical Activity Classification for Elderly People in Free-Living Conditions. IEEE Journal of Biomedical and Health Informatics
  Academic article
• Groos, Daniel; Aurlien, Kristian; Ramampiaro, Heri; Ihlen, Espen Alexander F.; deRegnier, RA; Peyton, Colleen. (2019) Deep Learning‐based infant motion tracking facilitating early detection of cerebral palsy. Developmental Medicine & Child Neurology
  Abstract
• Ihlen, Espen Alexander F.; Støen, Ragnhild; Boswell, Lynn; de-Regnier, Raye-Ann; Fjørtoft, Toril Larsson; Gaebler-Spira, Deborah. (2019) Machine Learning of Infant Spontaneous Movements for the Early Prediction of Cerebral Palsy: A Multi-Site Cohort Study. Journal of Clinical Medicine
  Academic article
• Støen, Ragnhild; Boswell, Lynn; De Regnier, Raye-Ann; Fjørtoft, Toril Larsson; Gaebler-Spira, Deborah; Ihlen, Espen Alexander F.. (2019) The predictive accuracy of the general movement assessment for cerebral palsy: A prospective, observational study of high-risk infants in a clinical follow-up setting. Journal of Clinical Medicine
  Academic article

2018

• Bourke, Alan; Ihlen, Espen Alexander F.; Helbostad, Jorunn L.. (2018) Development of a gold-standard method for the identification of sedentary, light and moderate physical activities in older adults: Definitions for video annotation. Journal of Science and Medicine in Sport
  Academic article
• Adde, Lars; Yang, Hong; Sæther, Rannei; Jensenius, Alexander Refsum; Ihlen, Espen Alexander F.; Cao, Jia-yan. (2018) Characteristics of general movements in preterm infants assessed by computer-based video analysis. Physiotherapy Theory and Practice
  Academic article
• Wahl, Siri Munch; Ihlen, Espen Alexander F.; Serrano, Artur. (2018) Test-Retest Reliability of Sit-to-Walk Parameters in Healthy Older Persons as Measured by a Custom-Made Armchair. NTNU
  Masters thesis
• Ihlen, Espen Alexander F.; Schooten, K S; Bruijn, S M; Dieën, J H; Vereijken, Beatrix; Helbostad, Jorunn L.. (2018) Improved prediction of falls in community-dwelling older adults through phase-dependent entropy of daily-life walking. Frontiers in Aging Neuroscience
  Academic article

2017

• Bourke, Alan; Ihlen, Espen Alexander F.; Bergquist, Ronny; Wik, Per Bendik; Vereijken, Beatrix; Helbostad, Jorunn L.. (2017) A physical activity reference data-set recorded from older adults using body-worn inertial sensors and video Technology - The ADAPT study data-set. Sensors
  Academic article
• Ihlen, Espen Alexander F.; van Schooten, Kimberley S; Bruijn, Sjoerd M; Pijnappels, Mirjam; van Dieen, Jaap H. (2017) Fractional stability of trunk acceleration dynamics of daily-life walking: toward a unified concept of gait stability. Frontiers in Physiology
  Academic article

2016

• Klenk, Jochen; Schwickert, Lars; Palmerini, Luca; Mellone, Sabato; Bourke, Alan; Ihlen, Espen Alexander F.. (2016) The FARSEEING real-world fall repository: a large-scale collaborative database to collect and share sensor signals from real-world falls. European Review of Aging and Physical Activity
  Academic article
• Ihlen, Espen Alexander F.; Weiss, Aner; Bourke, Alan; Helbostad, Jorunn L.; Hausdorff, Jeffrey M.. (2016) The complexity of daily life walking in older adult community-dwelling fallers and non-fallers. Journal of Biomechanics
  Academic article
• Awais, Muhammad; Palmerini, Luca; Bourke, Alan; Ihlen, Espen Alexander F.; Helbostad, Jorunn L.; Chiari, Lorenzo. (2016) Performance Evaluation of State of the Art Systems for Psysical Activity Classification of Older Subjects Using Inertial Sensors in a Real Life Scenario: A Benchmark Study. Sensors
  Academic article
• Bourke, Alan; Klenk, Jochen; Schwickert, Lars; Aminian, Kamiar; Ihlen, Espen Alexander F.; Mellone, Sabato. (2016) Fall detection algorithms for real-world falls harvested from lumbar sensors in the elderly population: A machine learning approach. IEEE Engineering in Medicine and Biology Society. Conference Proceedings
  Academic article
• Bourke, Alan; Ihlen, Espen Alexander F.; Van de Ven, Pepijn W.J.; Nelson, John; Helbostad, Jorunn L.. (2016) Video analysis validation of a real-time physical activity detection algorithm based on a single waist mounted tri-axial accelerometer sensor. IEEE Engineering in Medicine and Biology Society. Conference Proceedings
  Academic article
• Bourke, Alan; Ihlen, Espen Alexander F.; Wik, Per Bendik; Bergquist, Ronny; Helbostad, Jorunn L.. (2016) Validation of the activPAL3 for Measurement of Physical Activity in Older Adults in a Semi-Structured Protocol Using Video Analysis. Gait & Posture
  Abstract
• Ihlen, Espen Alexander F.; Hausdorff, Jeffrey M.. (2016) Nonlinear analysis for human movement variability. Journal of Biomechanics
  Book review
• Bårdstu, Hilde; Ihlen, Espen Alexander F.; Bardal, Ellen Marie; Mork, Paul Jarle. (2016) Detection of physical activity types with accelerometers in adolescents in free-living settings. Gait & Posture
  Abstract
• Skjæret-Maroni, Nina; Vonstad, Elise Klæbo; Ihlen, Espen Alexander F.; Tan, Xiang chun; Helbostad, Jorunn L.; Vereijken, Beatrix. (2016) Exergaming in older adults: Movement characteristics while playing stepping games. Frontiers in Psychology
  Academic article
• Ihlen, Espen Alexander F.; Weiss, Aner; Beck, Yoav; Helbostad, Jorunn L.; Hausdorff, Jeffrey M.. (2016) A comparison study of local dynamic stability measures of daily life walking in older adult community-dwelling fallers and non-fallers. Journal of Biomechanics
  Academic article
• Bardal, Ellen Marie; Roeleveld, Karin; Ihlen, Espen Alexander F.; Mork, Paul Jarle. (2016) Micro movements of the upper limb in fibromyalgia: The relation to proprioceptive accuracy and visual feedback. Journal of Electromyography & Kinesiology
  Academic article

2015

• Bourke, Alan; Klenk, Jochen; Schwickert, Lars; Aminian, Kamair; Ihlen, Espen Alexander F.; Helbostad, Jorunn L.. (2015) Temporal and kinematic variables for real-world falls harvested from lumbar sensors in the elderly population. IEEE Engineering in Medicine and Biology Society. Conference Proceedings
  Academic article
• Srulijes, Karin; Mack, David J; Klenk, Jochen; Schwickert, Lars; Ihlen, Espen Alexander F.; Schwenk, Michael. (2015) Association between vestibulo-ocular reflex suppression, balance, gait, and fall risk in ageing and neurodegenerative disease: Protocol of a one-year prospective follow-up study. BMC Neurology
  Academic article
• Ihlen, Espen Alexander F.; Weiss, A; Helbostad, Jorunn L.; Hausdorff, Jeffrey M. (2015) The Discriminant Value of Phase-Dependent Local Dynamic Stability of Daily Life Walking in Older Adult Community-Dwelling Fallers and Nonfallers. BioMed Research International
  Academic article
• Thingstad, Pernille; Egerton, Thorlene; Ihlen, Espen Alexander F.; Taraldsen, Kristin; Moe-Nilssen, Rolf; Helbostad, Jorunn L.. (2015) Identification of gait domains and key gait variables following hip fracture. BMC Geriatrics
  Academic article

2014

• Ihlen, Espen Alexander F.. (2014) Age-related changes in inter-joint coordination during walking. Journal of applied physiology
  Academic article
• Ihlen, Espen Alexander F.; Vereijken, Beatrix. (2014) Detection of co-regulation of local structure and magnitude of stride time variability using a new local detrended fluctuation analysis. Gait & Posture
  Academic article

2013

• Ihlen, Espen Alexander F.. (2013) Multifractal analyses of response time series: A comparative study. Behavior Research Methods
  Academic article
• Ihlen, Espen Alexander F.; Vereijken, Beatrix. (2013) Multifractal formalisms of human behavior. Human Movement Science
  Academic article
• Ihlen, Espen Alexander F.; Skjæret, Nina; Vereijken, Beatrix. (2013) The influence of center-of-mass movements on the variation in the structure of human postural sway. Journal of Biomechanics
  Academic article
• Ihlen, Espen Alexander F.. (2013) The influence of power law distributions on long-range trial dependency of response times. Journal of Mathematical Psychology
  Academic article
• Ihlen, Espen Alexander F.; Vereijken, Beatrix. (2013) Identifying Multiplicative Interactions Between Temporal Scales of Human Movement Variability. Annals of Biomedical Engineering
  Academic article

2012

• Ihlen, Espen Alexander F.; Sletvold, Olav; Goihl, Tobias; Wik, Per Bendik; Vereijken, Beatrix; Helbostad, Jorunn L.. (2012) Older adults have unstable gait kinematics during weight transfer. Journal of Biomechanics
  Academic article
• Ihlen, Espen Alexander F.; Goihl, Tobias; Wik, Per Bendik; Sletvold, Olav; Helbostad, Jorunn L.; Vereijken, Beatrix. (2012) Phase-dependent changes in local dynamic stability of human gait. Journal of Biomechanics
  Academic article
• Ihlen, Espen Alexander F.. (2012) Introduction to multifractal detrended fluctuation analysis in Matlab. Frontiers in Physiology
  Academic literature review

2010

• Ihlen, Espen Alexander F.; Vereijken, Beatrix. (2010) Interaction-Dominant Dynamics in Human Cognition: Beyond 1/f(alpha) Fluctuation. Journal of experimental psychology. General
  Academic article

2009

• Ihlen, Espen Alexander F.. (2009) A comparison of two Hilbert spectral analyses of heart rate variability. Medical and Biological Engineering and Computing
  Academic article