Thales tackles scrum simulation
Neuilly sur Seine, 4 June 2010 – Thales announced today the inauguration of its rugby
scrum simulator— the first of its kind in the world — developed in close partnership with the
Fédération Française de Rugby (FFR).
The simulator was designed to analyse the risk of scrum accidents, particularly spinal
injuries, and thus improve player safety. Instability and collapse of the scrum formation is one
of the primary causes of player injuries. This simulator meets critical requirements for
reducing accidents, but also goes one step further, as a tool for coaching purposes and
match preparation.
Conducted as part of a management-transition training programme at Thales, the project has
combined state-of-the-art technology and advanced research for the direct benefit of toplevel
sport. A group of seven Thales personnel worked closely with the teams at CNRS and
the FFR for several months. Development was led by Didier Retière, in charge of the French
forwards, Pierre-Paul Vidal, CNRS research director at the Université Paris Descartes and a
specialist in neurosciences, Julien Piscione, senior research consultant in biomechanics and
head of the FFR’s science unit, and Serge Couvet, simulation engineer at Thales.
The scrum simulator takes the shape of a six-legged robot, relying on a six-axis motion
system to respond to player inputs (force and motion) via sensors installed behind the
beams/shoulder pads.
The simulator reconstructs the scrum situation by moving the beam left and right, backwards
and forwards, up and down, combined with three-axis rotation. Unlike a simple muscle
development simulator, which measures forces only, the simulator is designed to develop
sensory-motor control. Individual player weaknesses reduce the overall effectiveness of the
scrum formation. The simulator identifies these weaknesses so as to making the scrum more
steady and stable.
“The scrum members need to make the formation move as a single man,” says Serge
Couvet, project engineer at Thales.
Sensors located between the beam and the simulator structure measure the engagement
forces of each player. The simulator – which is designed to support player qualifications of all
levels – reacts in real time, according to a pre-programmed control strategy.
“The simulator is a real revolution,” says Dr Julien Piscione, senior research consultant in
biomechanics and head of the FFR’s science unit. “Not only is it the first simulator of its kind
ever developed in the world, it is also the first time that neuroscience has been applied to
simulator design. The secret behind this innovation lies in its ability to generate
proprioceptive inputs. These allow players to decide how to move and push against the
simulator, which reacts accordingly.”