Neuroscience in Sports at Freiburg University

Neuroscience in Sports at Freiburg University


[Music] the current time is the very inspiring time because at the moment we actually have the tools that allow us to really investigate tiny synaptic processes that take place when we perform output motor output the my name is Christine Larkin I’m a junior professor at the Department of sports science I’m a human neurophysiologist and was actually interested in how the brain controls movements and plastic processes that are associated with learning when we investigate cortical motor neural cells in the cortex these cells are activated by synapses in the primary motor cortex and we study these synaptic processes that drive the output of the cells when you make a movement synaptic activity changes and therefore we try to get insight in how they actually change so how excitation and inhibitory synaptic input is modulating the activity of the cells and therefore steering movement my name is Alexander Koontz I’m a PhD student here at the Sports Institute in my PhD project here I’m investigating neurophysiologic mechanisms of the motor preparation so even before you are doing a model contraction there’s activity happening in the brain and we’re trying to find and what are the mechanisms which finally lead even before you contract the muscle to precise contraction so we’re using different stimulation techniques one of them is this transcranial magnetic stimulation another one is a peripheral nerve stimulation in the setup with the seat at the pedal were investigating pretty basic movement control by reaction time task where the subject is provided with free tones and he has to react on the third tone with a rather basic and contraction of his cuff Muslim the setup with the bike were investigating the commotion so movements which are repeated and we can look there what kind of movement control is happening in different positions of the pedal mainly we’re focusing on the corticospinal tract so it didn’t both not only the motor cortex it’s rather the pathways going down to the spinal cord and finally innervating the muscles so we’re looking at cortical motor cells which innervate the muscles and lead to a movement I would consider this this system or what explains the system as a tube tube through which runs water and in such a system the water is moving for instance machine and now it’s important in order to move this machine appropriately it’s important to control the amount of water that is running through the 2 to accomplish this we developed sophisticated methods by combining several techniques that finally then allow to assess these very detailed processes we are then able to understand hopefully at some point how the brain performs these tasks how it actually controls the movements and learns movements our insights can be used to improve therapies and rehabilitation processes in general and of course as a sports scientists I’m also interested in improvement of performance in athletes you

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