Personne
Hooman Dejnabadi
Cette personne n’est plus à l’EPFL
Publications associées (13)
A Vibrational Technique for in vitro Intraoperative Prosthesis Fixation Monitoring
Kamiar Aminian, Hooman Dejnabadi, Seyed Abdolmajid Yousefsani
Objective: In this paper, a new vibrational modal analysis technique was developed for intraoperative cementless prosthesis fixation evaluation upon hammering. Methods: An artificial bone (Sawbones)-prosthesis system was excited by sweeping of a sine signa ...
2020Seek and learn: Automated identification of microevents in animal behaviour using envelopes of acceleration data and machine learning
Kamiar Aminian, Hooman Dejnabadi, Pritish Chakravarty
Animal‐borne accelerometers have been used across more than 120 species to infer biologically significant information such as energy expenditure and broad behavioural categories. While the accelerometer’s high sensitivity to movement and fast response time ...
2020Real-World Gait Bout Detection Using a Wrist Sensor: An Unsupervised Real-Life Validation
Kamiar Aminian, Anisoara Ionescu, Hooman Dejnabadi, Abolfazl Soltani
Gait bouts (GB), as a prominent indication of physical activity, contain valuable fundamental information closely associated with human & x2019;s health status. Therefore, objective assessment of the GB (e.g. detection, spatio-temporal analysis) during dai ...
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2020Real-world gait speed estimation using wrist sensor: A personalized approach
Kamiar Aminian, Hooman Dejnabadi, Abolfazl Soltani, Martin Savary
Gait speed is an important parameter to characterize people's daily mobility. For real-world speed measurement, inertial sensors or Global Navigation Satellite System (GNSS) can be used on wrist, possibly integrated in a wristwatch. However, power consumpt ...
2019A randomised controlled clinical trial and gait analysis of fixed- and mobile-bearing total knee replacements with a five-year follow-up
Kamiar Aminian, Brigitte Jolles-Haeberli, Hooman Dejnabadi
This study compared the outcome of total knee replacement (TKR) in adult patients with fixed- and mobile-bearing prostheses during the first post-operative year and at five years' follow-up, using gait parameters as a new objective measure. This double-bli ...
2012An Implantable System for Angle Measurement in Prosthetic Knee
Kamiar Aminian, Arash Arami, Hooman Dejnabadi
In this work we designed and tested an in-vivo measurement system of prosthetic knee joint angles. The system included a small permanent magnet in the femoral part and three magneto resistance sensors placed in the polyethylene part. The sensor configurati ...
2011Instrumented Prosthesis for Knee Implants Monitoring
Kamiar Aminian, Philippe Renaud, Pierre-André Farine, Peter Ryser, Catherine Dehollain, Arnaud Bertsch, Brigitte Jolles-Haeberli, Eric Meurville, Arash Arami, Steve Tanner, Hooman Dejnabadi, Willyan Hasenkamp Carreira, Shafqat Ali, Oguz Atasoy, Matteo Simoncini
In this work we present an instrumented smart knee prosthesis for in-vivo measurement of forces and kinematics. Studying the constraints, we designed minimal sensory systems to be placed in the polyethylene part of the prosthesis. The magnetic sensors and ...
IEEE2011Analysis of gait and coordination for arthroplasty outcome evaluation using body-fixed sensors
The importance of evaluation of an orthopedic operation such as hip or knee arthroplasty has long been recognized. Many definitions of outcome and scoring questionnaires have been used in the past to assess the outcome of joint replacement. However, these ...
EPFL2006Estimation and visualization of sagittal kinematics of lower limbs orientation using body-fixed sensors
Pascal Fua, Kamiar Aminian, Hooman Dejnabadi, Emilio Casanova
A new method of estimating lower limbs orientations using a combination of accelerometers and gyroscopes is presented. The model is based on estimating the accelerations of ankle and knee joints by placing virtual sensors at the centers of rotation. The pr ...
Institute of Electrical and Electronics Engineers2006Gait analysis and WOMAC are complementary in assessing functional outcome in total hip replacement
Kamiar Aminian, Hooman Dejnabadi
Objective: To investigate the correlation between objective and subjective evaluation of patients with total hip replacement. Design: Prospective preliminary trial comparing the Western Ontario and McMaster University questionnaire ( WOMAC) and gait analys ...
2006