A5034728290- Muscle activation and electromyography studies
- Stroke Rehabilitation and Recovery
- Inertial Sensor and Navigation
- Surgical Simulation and Training
- Motor Control and Adaptation
- Balance, Gait, and Falls Prevention
- Anatomy and Medical Technology
- Advanced Measurement and Metrology Techniques
- Ergonomics and Human Factors
- Sensor Technology and Measurement Systems
- EEG and Brain-Computer Interfaces
- Non-Invasive Vital Sign Monitoring
- Face and Expression Recognition
- Spaceflight effects on biology
- Occupational Health and Performance
- Sports Performance and Training
- Space Exploration and Technology
- Shoulder Injury and Treatment
- Surface Roughness and Optical Measurements
- Winter Sports Injuries and Performance
- Ergonomics and Musculoskeletal Disorders
- Human-Automation Interaction and Safety
- Kidney Stones and Urolithiasis Treatments
- Cardiac, Anesthesia and Surgical Outcomes
Harvard–MIT Division of Health Sciences and Technology
2015-2022
Massachusetts Institute of Technology
2017-2022
Inertial measurement units (IMUs) have been demonstrated to reliably measure human joint angles—an essential quantity in the study of biomechanics. However, most previous literature proposed IMU-based angle systems that required manual alignment or prescribed calibration motions. This paper presents a simple, physically-intuitive method for knee flexion/extension gait without requiring discrete calibration, based on computationally-efficient and easy-to-implement Principle Component Analysis...
INTRODUCTION: Human-spacesuit fit is not well understood, especially in relation to operational performance and injury risk. Current decisions use subjective feedback. This work developed evaluated new metrics for quantifying assessed metric sensitivity changes padding between the human hip brief assembly (HBA).METHODS: Three subjects donned Mark III (MKIII) spacesuit with three thicknesses lower body HBA. Subjects performed a walking task inertial measurement units on thigh shin of both...
Introduction: Flexible ureteroscopy (fURS) is the most common surgical procedure for treatment of urolithiasis. Various disciplines and subspecialties have examined surgeon kinematics to improve assessment generate measures skill. Despite frequency utilization, there no undisputed method evaluating fURS skills. Our pilot study utilized kinematic evaluations simulation determine whether specific movements, techniques, strategies correlate with ureteroscopic (URS) efficiency. Methods: A motion...
Robotic assistive devices show potential to aid hand function using surface electromyography (sEMG) as a control signal. Current implementations of these robotic systems typically do not include interaction with the environment, which naturally occurs during functional tasks. Further, many applications have experts place sEMG sensors on specific muscles, benefits precision alignment that may be possible by non-experts. This study informs algorithm development for controlling grasping and...
There are many design challenges in creating at-home tele-monitoring systems that enable quantification and visualization of complex biomechanical behavior. One such challenge is robustly quantifying joint coordination a way intuitive supports clinical decision-making. This work defines new measure called the relative metric (RCM) its accompanying normalization schemes. RCM enables during non-constrained discrete motions. Here applied to grasping task. Fifteen healthy participants performed...
We present RelCon, a novel self-supervised *Rel*ative *Con*trastive learning approach that uses learnable distance measure in combination with softened contrastive loss for training an motion foundation model from wearable sensors. The captures motif similarity and domain-specific semantic information such as rotation invariance. learned provides measurement of between pair accelerometer time-series segments, which is used to the anchor various other sampled candidate segments. trained on 1...
You have accessJournal of UrologyCME1 May 2022MP41-11 ANALYSIS OF FLEXIBLE URETEROSCOPIC MOTION AND KINEMATIC EFFICIENCY - A SIMULATION-BASED PILOT STUDY Marie-Therese Valovska, Gricelda Gomez, Richard Fineman, William Woltmann, Leia Stirling, and Daniel Wollin ValovskaMarie-Therese Valovska More articles by this author , GomezGricelda Gomez FinemanRichard Fineman WoltmannWilliam Woltmann StirlingLeia Stirling WollinDaniel View All Author...