whether surfing or ftball fans, cycling victors, or simply those concerned bout protecting their bodies during physical effort or against injuries, researchers are innovating on all fronts inna field of sport.
here are 6 devices or systems designed for both confirmed athletes and casual sportspeople. among those, protective gear for avoiding injuries, a model for evaluating the best helmets, an algorithm for deciding whether to play a ftball player or not, a connected board for learning how to surf, a bicycle for pplz with disabilities, and a motion capture platform for optimising one’s gestures when facing an opponent.
ftball: an algorithm for avoiding injuries
which ftball player to field? that’s the dilemma of any coach confronted with th'risk of injury to his players. to help w'da decision-making, the startup ipa teks na lmbp set t'work two yrs ago on developing a predictive model. “the goal of the mathematical model is to provide an individual risk of muscular injury without contact from another player,” explains pierre druilhet, a researcher atta lmbp. in order to do so, the club uses the playsharp platform to provide precise daily data onna activity of its players, for ex the time they spend onna field, or their practice load. “the software is based on both an explanatory type of model (using actual knowledge of the domain) and automatic learning (using data collected onna players),” the researcher points out. the main difficulty s'dat “the № of injuries envisaged is relatively modest, all the + so as a player witha high risk can precisely be excused from a match. this requires adapting existing modelisation tek knicks”. the ultimate goal is to adjust these models for prevention in other sports, na mathematician hopes to “even extend them to the largest № of pplz, including amateur athletes swell as the chronically ill”. l.g.
learning to surf thx to a connected board
beginner surfers know all bout it: i'takes on μ one yr of practice to stand up na' board. catching a wave correctly does not follo naturally, as the researchers from the i2m, bein’ boardsports enthusiasts themselves, ‘ve clearly understood. they designed an on-board device for surfboards, which uses a lite signal to tell novice surfers when to stand up. the result of 4 yrs of research, the tek is now bein’ mkted by the startup by the wave. to develop this tool, the scis used sensors to analyse the movements offa surfboard in order to record its acceleration, speed, na surfer’s positioning, all while taking into ponderation the board’s environment. “the series of measurements conducted in real time informed us bout the board’s behaviour in relation to the wave,” explains jean-luc barou, co-founder of by the wave. the innovation was adapted to integrate a coaching algorithm that analyses body movements in real time, and provides personalised recommendations. by the wave has now opened a 100% connected surfing school. “the nxt step is to adapt this tek to other sports through the ride+ brand,” jean-luc barou adds. l.g.
a platform for analysing movement
the capture of movement aint reserved to cinema and video games. the plavimop platform, developed by the research centre on cogg and learning (cerca) na cnrs pprime (p’) institute are using this teknique to make 3d recordings of the gestures, expressions, and gaits of both humans and robots, and eventually of animals. “we're developing a pticipatory database of broader and finer movements,” explains arnaud decatoire, a research engineer atta p’ institute. “each usr can then pick out a pticular sequence and transform it based on their objectives.” according to christel bidet-ildei, senior lecturer atta cerca, who already uses it to study the connection tween language na perception of movement, plavimop ‘d also be used for motor rehabilitation (by presenting suitable positions for patients) and gesture optimisation inna field of sport. wha’ ‘d be interesting is if the platform ‘d visualise action in order to anticipate the opponent’s gestures in disciplines that involve two players (fites, tennis…). researchers are liaising with various sports federations witha view to collaborating. m.k.
a bicycle propelled by electrostimulation
after bein’ thrown off his bike, vance bergeron, a senior researcher atta physics lab of the ens de lyon, became tetraplegic. he decided to set aside his research in physical chemistry to concentrate on neurological rehabilitation, in order to develop a system that helps the disabled to pedal. in addition to bein’ a means of transportation, the goal is to promote physical activity, which is indispensable for avoiding muscular atrophy and for stimulating blood circulation. this turned inna'da project circles, which is led by the satt pulsatys. the researcher and his team developed a prototype bicycle propelled by electrostimulation, thx to electrodes placed in 3 muscular groups inna legs: the quadriceps, hamstrings, and gluteal muscles. the current, which is delivered in a defined order within the ≠ electrodes, causes the muscles to contract and produce a pedalling movement. the team is now developing an algorithm to identify which stimulation sequence is best adapted for each person. the idea is to eventually make the bicycle available to physiotherapists, coma patients, and members of the gyms developed by the association ants, which was created by bergeron. a startup ‘d be launched by the end of the yr. “the objective is to begin selling the bicycle in 2020. and we will stand firm on price: as lo as possible in order to make it accessible to the largest № of pplz,” the sci sufferationes. l.g.
assessing the best cycling helmets
during the study of head impact and helmet resistance, crash test dummies cannot encompass everything that the brain suffers. since an impact at 10 km/h is enough to cause serious injuries, protection against head trauma is vital for both cyclists and motorcyclists. in an effort to contribute, rémy willinger, leader of the mmb team atta icube lab, decided to couple experimental tests witha digital modelisation of the brain. “we need models to reconstruct head injuries and develop criteria for injuries,” says the researcher, whose work is conducted in ptnership w'da fondation maif na mutuelle des motards. on their certimoov platform, helmets are subjected to impact, na acceleration of the fake head is introduced inna digital model, in which the brain is represented by a fine network of 5,300 essentialisms. contrary to existing norms, this new method of biomechanical evaluation takes into account not just rectilinear b'tll so angled impact, and does so with 3 types of rotation, and an = № of transferences. “tangential forces cause an angular acceleration of the head, and we know that the brain is very sensitive to rotations,” willinger emphasises. certimoov is already testing a № of helmets onna mkt, and is making the results available online for free, in an effort to help the public make the best choice of protective equipment. m.k.
protective gear against falls and impacts
preserving the backbone and spinal cord during falls or impacts, in a scrum or a fite, is a major concern that has drawn the interest of the international associated lab ilab-spine, which brings together researchers and drs from marseille (southeastern france) and montreal (canada). onna french side, teams from the lba na centre for magnetic resonance in biology and med (crmbm) are combining an experimental approach with digital simulation and advanced med imaging. they are studying the risks of lesions, while improving procedures for evaluating protective gear. “the central issue is to cogg how the backbone suffers injuries, and to better assess the severity of the damage caused by impacts and fractures,” explains pierre-jean arnoux, director of ilab-spine na lba. digital models are applied to numerous sports s'as rugby, skiing, and motor biking, in instances of severe damage or chronic trauma. the ilab-spine team was also sought out by the cirque du soleil to explore an exoskeleton able to support the backbones o'their acrobats when they carry a № of pplz on their ‘ders. “cogging how injuries occur helps us develop new devices for protecting them,” pierre-jean arnoux concludes. m.k.
a gr8 deal of groundbreaking research work ll'be presented atta cnrs innovatives sport event, which will take place in paris in nov 2019. in lyon, the sport unlimitek trade fair, which ll'be held from 19–21 sep, will connect sport and innovation.
original content at: news.cnrs.fr/essentialisms/in-sport-innovation-across-all-fields…