Review
Multidisciplinary Sciences
Bradley Scott, Martin Seyres, Fraser Philp, Edward K. Chadwick, Dimitra Blana
Summary: This review analyzes the current healthcare applications of single camera markerless motion capture technology, highlighting its use cases for different patient populations. While the technology performs well in single plane measurements, it lacks accuracy in tracking detailed 3D kinematics, requiring further improvement for clinical decision making.
Article
Computer Science, Information Systems
Chuan Zhi Tay, King Hann Lim, Jonathan Then Sien Phang
Summary: This paper proposes a novel markerless gait estimation and tracking algorithm for postural assessment and human motion analysis. The algorithm captures the athlete's posture using computer vision without the need for markers, resulting in less interference in physical training. Experimental results show that the system achieves high frame rate and accuracy on the Intel Up Squared Board.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Review
Engineering, Biomedical
Winnie W. T. Lam, Yuk Ming Tang, Kenneth N. K. Fong
Summary: Markerless motion capture (MMC) technology is being developed to eliminate the need for body markers in motion tracking and analysis. This review explores the current application of MMC in clinical measurement, focusing on its engineering components and potential as a clinical tool in rehabilitation.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2023)
Article
Neurosciences
Tishya A. L. Wren, Pavel Isakov, Susan A. Rethlefsen
Summary: This study investigated the concurrent validity of the commercially available markerless motion capture system, Theia3D, compared to the traditional marker-based system in pediatric clinical gait analysis. The results showed similar kinematic patterns between the two systems, but Theia3D had limitations in identifying the knee axis and its applicability to patients with foot deformities or using assistive devices.
Article
Multidisciplinary Sciences
Veronika Kosourikhina, Diarmuid Kavanagh, Michael J. Richardson, David M. Kaplan
Summary: This study reports on the validation of a deep learning-based pose estimation tool (DeepLabCut) against a traditional measurement system (Fastrak). The results show that, under specific circumstances, deep learning-based approaches can achieve similar performance to traditional motion tracking methods.
Article
Chemistry, Analytical
Yukihiko Aoyagi, Shigeki Yamada, Shigeo Ueda, Chifumi Iseki, Toshiyuki Kondo, Keisuke Mori, Yoshiyuki Kobayashi, Tadanori Fukami, Minoru Hoshimaru, Masatsune Ishikawa, Yasuyuki Ohta
Summary: This study developed a novel smartphone application using deep learning and a monocular camera to track full-body human motion in real time from video images. It allows for quantitative assessment of pathological gait by detecting key points and estimating three-dimensional joint angles without the need for markers or multipoint cameras.
Article
Chemistry, Analytical
Hyeonseok Kim, Makoto Miyakoshi, John Rehner Iversen
Summary: Full-body motion capture is crucial for studying body movement. We propose methods for co-registering 2D video and 3D marker positions without prior knowledge of spatial relationships. Using ball juggling as an example, we demonstrate the limitations of marker-based and occlusion-based tracking. We introduce linear co-registration methods that optimize ball-motion constraints and achieve accurate reconstructions.
Article
Biophysics
Robert M. Kanko, Elise K. Laende, Gerda Strutzenberger, Marcus Brown, W. Scott Selbie, Vincent DePaul, Stephen H. Scott, Kevin J. Deluzio
Summary: Spatiotemporal parameters can characterize gait patterns, and video-based markerless motion capture technology can accurately measure the gait parameters of healthy young adults, showing good agreement with marker-based motion capture and gait mat systems.
JOURNAL OF BIOMECHANICS
(2021)
Article
Chemistry, Analytical
Antonino Casile, Giulia Fregna, Vittorio Boarini, Chiara Paoluzzi, Fabio Manfredini, Nicola Lamberti, Andrea Baroni, Sofia Straudi
Summary: This study investigated the use of the cost-effective Oculus Quest head-mounted display as a tool for assessing markerless hand motion capabilities in stroke patients, and found that it provided accurate and sensitive measurements comparable to a commercial marker-based system.
Article
Engineering, Electrical & Electronic
Erika D'Antonio, Juri Taborri, Ilaria Mileti, Stefano Rossi, Fabrizio Patane
Summary: Markerless human motion capture using OpenPose and webcams was studied for 3D kinematic gait analysis. Results showed that while the system was accurate in optimal conditions, inaccuracies from OpenPose affected joint angle computation. Increasing camera number and optimization could improve accuracy for quantitative analysis.
IEEE SENSORS JOURNAL
(2021)
Article
Biophysics
Robert M. Kanko, Elise Laende, W. Scott Selbie, Kevin J. Deluzio
Summary: This study evaluates the reliability of lower limb gait kinematics using video-based markerless motion capture, showing that this method is potentially more reliable than traditional marker-based systems and holds promise for future applications.
JOURNAL OF BIOMECHANICS
(2021)
Article
Biophysics
Zachary Ripic, Joseph F. Signorile, Christopher Kuenze, Moataz Eltoukhy
Summary: The study evaluated the validity of using markerless systems for gait analysis, with some parameters showing strong agreement with traditional methods and others lacking accuracy.
JOURNAL OF BIOMECHANICS
(2022)
Article
Biophysics
M. Robert Kanko, K. Elise Laende, M. Elysia Davis, W. Scott Selbie, J. Kevin Deluzio
Summary: The study compared the kinematics of human gait measured using a markerless motion capture system to those from a standard marker-based system, finding that the average root mean square distance between corresponding joint centers was small and the global segment pose estimates were very similar. This suggests that markerless motion capture systems could be a suitable alternative in practical applications.
JOURNAL OF BIOMECHANICS
(2021)
Article
Agriculture, Dairy & Animal Science
Felix Jaremo Lawin, Anna Bystrom, Christoffer Roepstorff, Marie Rhodin, Mattias Almloef, Mudith Silva, Pia Haubro Andersen, Hedvig Kjellstrom, Elin Hernlund
Summary: This study demonstrates how an AI-powered measurement tool on a smartphone can detect lameness in horses without the need for additional equipment. The comparison with a state-of-the-art motion capture system shows a mean difference of below 2.2 mm between the two systems' output of lameness metrics. Therefore, the smartphone measurement tool is considered an easy-to-use and effective method for lameness detection in horses.
Article
Chemistry, Analytical
Sang-hyub Lee, Deok-Won Lee, Kooksung Jun, Wonjun Lee, Mun Sang Kim
Summary: A new method for combining multiple inaccurate skeleton data sets from different sensors into a single accurate skeleton data was proposed in this paper, using DBSCAN and Kalman filter for noise and error reduction. Increasing the number of sensors improved the joint position accuracy of the merged skeleton, with the best performance shown when the DBSCAN searching area was 10 cm.
Article
Cardiac & Cardiovascular Systems
Sarah Eichler, Annett Salzwedel, Rona Reibis, Joerg Nothroff, Axel Harnath, Martin Schikora, Christian Butter, Karl Wegscheider, Heinz Voeller
EUROPEAN JOURNAL OF PREVENTIVE CARDIOLOGY
(2017)
Article
Neurosciences
Monique Wochatz, Sophie Rabe, Martin Wolter, Tilman Engel, Steffen Mueller, Frank Mayer
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2017)
Article
Acoustics
Lucie Risch, Monique Wochatz, Janin Messerschmidt, Tilman Engel, Frank Mayer, Michael Cassel
JOURNAL OF ULTRASOUND IN MEDICINE
(2018)
Editorial Material
Cardiac & Cardiovascular Systems
Flavio D'Ascenzi, Paolo Emilio Adami, Sarah Eichler, Silvia Castelletti, Kim P. Wagenaar, Antonio Pelliccia, Paul Dendale, Diederick E. Grobbee
EUROPEAN JOURNAL OF PREVENTIVE CARDIOLOGY
(2018)
Article
Neurosciences
Monique Wochatz, Sophie Rabe, Tilman Engel, Steffen Mueller, Frank Mayer
Summary: This study compared scapular kinematics under unloaded and maximal loaded conditions, finding increased upward rotation, decreased posterior tilt and external rotation of the scapula during maximal loaded shoulder flexion and extension. Additionally, scapular motion extent increased under maximal loaded conditions.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Anne Schomoeller, Lucie Risch, Hannes Kaplick, Monique Wochatz, Tilman Engel, Anne Schraplau, Dominik Sonnenburg, Alexander Huppertz, Frank Mayer
Summary: The study assessed the reliability of paraspinal muscle T2 time measurements, finding consistent and reliable results between different observers and within the same observer at different time points. The findings suggest that the use of paraspinal muscle T2 time measurements can be justified for scientific purposes, indicating its potential for future studies assessing changes in T2 times.
BRITISH JOURNAL OF RADIOLOGY
(2021)
Article
Multidisciplinary Sciences
Monique Wochatz, Anne Schraplau, Tilman Engel, Mahli M. Zecher, Hadar Sharon, Yasmin Alt, Frank Mayer, Alon Kalron
Summary: This study aims to investigate the feasibility, functional benefits, and systemic responses of an eccentric exercise program focused on the trunk and lower extremities in people with low back pain (LBP) and multiple sclerosis (MS).
Article
Public, Environmental & Occupational Health
Jakob Henschke, Hannes Kaplick, Monique Wochatz, Tilman Engel
Summary: This study assessed the accuracy of a portable sensor-software system compared to optical motion in measuring shoulder kinematic parameters. The results showed overall insufficient agreement between the two systems and low consistency during complex shoulder movements. Further development may improve measurement accuracy and allow integration into clinical practice.
HEALTH SCIENCE REPORTS
(2022)
Article
Ergonomics
Mina Khajooei, Monique Wochatz, Omar Baritello, Frank Mayer
Article
Public, Environmental & Occupational Health
Annett Salzwedel, Sophie Rabe, Thomas Zahn, Julia Neuwirth, Sarah Eichler, Kathrin Haubold, Anne Wachholz, Rona Reibis, Heinz Voeller
Article
Cardiac & Cardiovascular Systems
Sarah Eichler, Annett Salzwedel, Axel Harnath, Christian Butter, Karl Wegscheider, Mihai Chiorean, Heinz Voeller, Rona Reibis
CLINICAL RESEARCH IN CARDIOLOGY
(2018)
Article
Medicine, General & Internal
Rona Reibis, Uwe Kuehl, Annett Salzwedel, Mortesa Rasawieh, Sarah Eichler, Karl Wegscheider, Heinz Voeller
SAGE OPEN MEDICINE
(2017)
Article
Sport Sciences
T. Haupt, M. Wolschke, S. Rabe, I. Scholz, A. Smurawski, A. Salzwedel, F. Thomas, H. Reich, H. Voeller, J. Liebach, S. Eichler
BEWEGUNGSTHERAPIE UND GESUNDHEITSSPORT
(2017)
Article
Neurosciences
Nina Gras, Torsten Brauner, Scott Wearing, Thomas Horstmann
Summary: This study aimed to investigate the challenge posed by progressively unstable balance devices to bipedal stance during early functional rehabilitation in THA patients. The results showed that increasingly compliant balance pads provided a progressive challenge, while the challenge posed by the oscillating platform was lower and independent of the ability to stand independently.
Article
Neurosciences
Sharon M. H. Tsang, Evest H. W. Chan, Jason Y. H. Chan, Gladys P. Y. Huang, Kelly K. T. Lam, Eunice W. Y. Lam, Allan C. L. Fu, Eliza R. Sun
Summary: This study examined the differences in postural adjustments between erect, hyperlordotic, and swayback postures when facing external perturbations. The findings suggest that adopting hyperlordotic and swayback postures alters the contributions of the active and passive subsystems of the spine in postural control, potentially reducing the spine's ability to withstand loading and shear forces.
Article
Neurosciences
Hsin-yi Wang, Cheng-Yi Ho, Min-Chun Pan
Summary: This study investigated the differences in lumbar and hip movements during gait and muscle activities related to knee osteoarthritis (KOA) patients and healthy participants. The results showed that KOA patients used a hyperlordotic lumbar and hip flexed strategy, leading to excessive stress on the lower extremity joints during gait.
Article
Neurosciences
Yoshitaka Otani, Osamu Aoki
Summary: This study found that feelings of fear affect postural control but not the internal focus of attention. This finding may be useful in assessments and interventions for older adults with a fall risk.
Article
Neurosciences
Haruki Toda, Hiroaki Hobara, Mitsunori Tada
Summary: This study investigated sex differences in lower limb dynamic joint stiffness (DJS) during walking in older adults. The results showed that ankle DJS was lower in older women, which was caused by the reduced ankle plantarflexion moment. However, knee DJS did not elucidate the cause of knee osteoarthritis (OA) in older women.
Article
Neurosciences
Luis H. Cubillos, Elliott J. Rouse, Thomas E. Augenstein, Varun Joshi, Edward S. Claflin, Chandramouli Krishnan
Summary: The study found that the reliability of stiffness, viscosity, and inertia of the ankle joint was good to excellent during standing. During walking, the reliability of stiffness and viscosity was also good to excellent, while that of inertia was fair to good. The minimal detectable change (MDC) ranged widely, but was higher for inertia during walking.
Article
Neurosciences
Alexandra F. Dejong Lempke, Danielle L. Hunt, Sarah B. Willwerth, Pierre A. d'Hemecourt, William P. Meehan III, Kristin E. Whitney
Summary: Adolescent athletes alter their gait patterns throughout a marathon race, and there are correlations between biomechanical features and race performance among young marathoners.
Article
Neurosciences
Ali Esmaeili, Sayed Esmaeil Hosseininejad, Amirali Jafarnezhadgero, Valdeci Carlos Dionisio
Summary: This study investigates the effects of footwear type, navicular drop and ankle pronation on lower limb joint stiffness during running. The results show that navicular drop and dynamic ankle pronation do not affect joint stiffness, but footwear type significantly affects joint stiffness. Conventional footwear increases ankle and hip joint stiffness while reducing knee joint stiffness, which may have implications for injury risk.
Article
Neurosciences
Takahiro Watanabe, Tomoya Takabayashi, Takanori Kikumoto, Yudai Kikuchi, Shunsuke Suzuki, Shiori Hiratsuka, Masayoshi Kubo
Summary: This study suggests that there are differences in abductor hallucis activity between individuals with chronic ankle instability and ankle sprain copers, indicating neuromuscular dysfunction in these patients, which leads to pain and instability symptoms.
Letter
Neurosciences
Susan M. Linder, Mandy Miller Koop, Jay L. Alberts
Article
Neurosciences
Elza van Duijnhoven, Marit van der Veen, Fieke S. Koopman, Frans Nollet, Sjoerd M. Bruijn, Merel-Anne Brehm
Summary: Gait stability is impaired in polio survivors with plantarflexor weakness, characterized by increased step width and step length variability and lower MoSAP. These factors are related to the elevated energy cost of walking in polio survivors.
Article
Neurosciences
Rebecca Hemming, Alister du Rose, Liba Sheeran, Robert van Deursen, Valerie Sparkes
Summary: In a forward bending task, there is a relationship between trunk muscle activation and regional thoracic and lumbar kinematics in NSCLBP subgroups, indicating different motor control strategies adopted by different subgroups when performing bending tasks.
Review
Neurosciences
Carina Pohle, Linda Becker, Jochen Baumeister
Summary: This systematic review is the first to compile evidence on the effect of the menstrual cycle on postural control. The evidence regarding the influence of the menstrual cycle on postural control is unclear. However, a trend of decreased postural control from the early follicular phase to the ovulatory phase was observed in balance tasks that eliminated or altered sensory input.