Publications associées à A wearable system for monitoring the velocity variability in open water swimming and triathlon

Identification of the trade-off between speed and efficiency in undulatory swimming using a bio-inspired robot

Auke Ijspeert, Laura Isabel Paez Coy, Kamilo Andres Melo Becerra, Karen Ann J Mulleners, Alexandros Anastasiadis, Eric Daniel Tytell

Anguilliform swimmers, like eels or lampreys, are highly efficient swimmers. Key to understanding their performances is the relationship between the body’s kinematics and resulting swimming speed and efficiency. But, we cannot prescribe kinematics to livin ...

Nature Research2023

Effects of Head-Tracking Artefacts on Externalization and Localization in Azimuth With Binaural Wearable Devices

Hervé Lissek, Gilles André Courtois, Vincent Pierre Olivier Grimaldi

Head tracking combined with head movements have been shown to improve auditory externalization of a virtual sound source and contribute to the performance in localization. With certain technically constrained head-tracking algorithms, as can be found in we ...

Audio Engineering Soc2023

SmartSwim: A novel approach to swimming analysis and coaching assistance based on wearable inertial sensors

Mahdi Hamidi Rad

As one of the three most popular sports in the Summer Olympics, competitive swimming has always been an attractive subject of study for sports scientists. The intricate nature of the swimmer's movements and the variety of techniques have led coaches to req ...

EPFL2022

Emergence of robust self-organized undulatory swimming based on local hydrodynamic force sensing

Auke Ijspeert, Robin Thandiackal, Laura Isabel Paez Coy, Kamilo Andres Melo Becerra, Kyoichi Akiyama

Undulatory swimming represents an ideal behavior to investigate locomotion control and the role of the underlying central and peripheral components in the spinal cord. Many vertebrate swimmers have central pattern generators and local pressure-sensitive re ...

AMER ASSOC ADVANCEMENT SCIENCE2021

Wearable Sensor-Based Real-Time Gait Detection: A Systematic Review

Auke Ijspeert, Urs Keller, Grégoire Courtine, Miroslav Caban, Joachim von Zitzewitz, Hari Prasanth

Gait analysis has traditionally been carried out in a laboratory environment using expensive equipment, but, recently, reliable, affordable, and wearable sensors have enabled integration into clinical applications as well as use during activities of daily ...

2021

Development of soft microscopic implants and acoustically-powered machines for biomedical applications

Murat Kaynak

The development of miniaturized machines that can actively cross barriers, navigate through heterogeneous materials and access remote sites can revolutionize environmental inspection and targeted therapy. Seminal work demonstrated the feasibility of follow ...

EPFL2021

Bio-Inspired Tensegrity Fish Robot

Dario Floreano, Jun Shintake, Timothée John Martin Peter, Davide Zappetti, Yusuke Ikemoto

This paper presents a method to create fish-like robots with tensegrity systems and describes a prototype modeled on the body shape of the rainbow trout with a length of 400 mm and a mass of 102 g that is driven by a waterproof servomotor. The structure of ...

IEEE2020

Gallium-Based Thin Films for Wearable Sensors and Electronic Skins

Laurent Mirko Dejace

Integrated wearable electronics capable of providing biophysical information on complex and dynamic systems have attracted high interest in diverse fields such as healthcare, gaming and robotics. Wearable sensors can create artificial, electronic skins wit ...

EPFL2020

The Hydrodynamics of a Micro-Rocket Propelled by a Deformable Bubble

François Gallaire, Giacomo Gallino, Lailai Zhu

We perform simulations to study the hydrodynamics of a conical-shaped swimming micro-robot that ejects catalytically produced bubbles from its inside. We underline the nontrivial dependency of the swimming velocity on the bubble deformability and on the ge ...

2019

RoboScallop: A Bivalve Inspired Swimming Robot

Jamie Paik, Matthew Aaron Robertson

Underwater swimming robots permit remote access to over 70% of the Earth's surface that is covered in water for a variety of scientific, environmental, tactical, or industrial purposes. Many practical applications for robots in this setting include sensing ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2019

Pseudomonas aeruginosa orchestrates twitching motility by sequential control of type IV pili movements

Lorenzo Anton-Louis Talà, Alexandre Louis André Persat

Prokaryotes have the ability to walk on surfaces using type IV pili (TFP), a motility mechanism known as twitching(1,2). Molecular motors drive TFP extension and retraction, but whether and how these movements are coordinated is unknown(3). Here, we reveal ...

NATURE PUBLISHING GROUP2019

Adaptive locomotion of artificial microswimmers

Mahmut Selman Sakar, Fazil Emre Uslu

Bacteria can exploit mechanics to display remarkable plasticity in response to locally changing physical and chemical conditions. Compliant structures play a notable role in their taxis behavior, specifically for navigation inside complex and structured en ...

2019

Haptic feedback perception and learning with cable-driven guidance in exosuit teleoperation of a simulated drone

Dario Floreano, Auke Ijspeert, Carine Rognon, Amy Roning Wu, Vivek Ramachandran

Robotics teleoperation enables human operators to control the movements of distally located robots. The development of new wearable interfaces as alternatives to hand-held controllers has created new modalities of control, which are more intuitive to use. ...

2019

FlyJacket: An Upper Body Soft Exoskeleton for Immersive Drone Control

Dario Floreano, David Atienza Alonso, Carine Rognon, Alexandre Thierry Cherpillod, Fabio Isidoro Tiberio Dell'Agnola, Stefano Mintchev

Most human–drone interfaces, such as joysticks and remote controllers, require attention and developed skills during teleoperation. Wearable interfaces could enable a more natural and intuitive control of drones, which would make this technology accessible ...

2018

Soft Biomimetic Fish Robot Made of Dielectric Elastomer Actuators

Dario Floreano, Herbert Shea, Jun Shintake, Vito Cacucciolo

This article presents the design, fabrication, and characterization of a soft biomimetic robotic fish based on dielectric elastomer actuators (DEAs) that swims by body and/or caudal fin (BCF) propulsion. BCF is a promising locomotion mechanism that potenti ...

2018

Development of Bio-inspired Underwater Robot with Adaptive Morphology Capable of Multiple Swimming Modes

Dario Floreano, Jun Shintake, Thibaut André Pierre Paschal, Stefano Mintchev

Bio-inspired underwater robots have several benefits compared to traditional underwater vehicles such as agility, efficiency, and an environmentally friendly body. However, the bio-inspired underwater robots developed so far have a single swimming mode, wh ...

2017

Instrumented shoes for daily activity monitoring in healthy and at risk populations

Christopher Moufawad El Achkar

Daily activity reflects the health status of an individual. Ageing and disease drastically affect all dimensions of mobility, from the number of active bouts to their duration and intensity. Performing less activity leads to muscle deterioration and furthe ...

EPFL2016

Soft micromachines with programmable motility and morphology

Mahmut Selman Sakar

Nature provides a wide range of inspiration for building mobile micromachines that can navigate through confined heterogenous environments and perform minimally invasive environmental and biomedical operations. For example, microstructures fabricated in th ...

Nature Research2016

Instrumented shoes for activity classification in the elderly

Kamiar Aminian, Anisoara Ionescu, Christopher Moufawad El Achkar

Quantifying daily physical activity in older adults can provide relevant monitoring and diagnostic information about risk of fall and frailty. In this study, we introduce instrumented shoes capable of recording movement and foot loading data unobtrusively ...

Elsevier2016

Spatio-temporal gait analysis in children with cerebral palsy using foot-worn inertial sensors

Kamiar Aminian, Benoît Mariani

A child's natural gait pattern may be affected by the gait laboratory environment. Wearable devices using body-worn sensors have been developed for gait analysis. The purpose of this study was to validate and explore the use of foot-worn inertial sensors f ...

Elsevier2014