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Université de Fribourg

Training‐, muscle‐ and task‐specific up‐ and downregulation of cortical inhibitory processes

Taube, Wolfgang ; Gollhofer, Albert ; Lauber, Benedikt

In: European Journal of Neuroscience, 2020, vol. 51, no. 6, p. 1428–1440

Motor cortical contribution was shown to be important for balance control and for ballistic types of movements. However, little is known about the role of cortical inhibitory mechanisms and even less about long(er)‐term adaptations of these inhibitory processes. Therefore, the aim of the present study was to investigate the role of intracortical inhibition before and after four weeks of ...

Université de Fribourg

Low-load blood flow restriction training induces similar morphological and mechanical Achilles tendon adaptations compared with high-load resistance training

Centner, Christoph ; Lauber, Benedikt ; Seynnes, Olivier R. ; Jerger, Simon ; Sohnius, Tim ; Gollhofer, Albert ; König, Daniel

In: Journal of Applied Physiology, 2019, vol. 127, no. 6, p. 1660–1667

ow-load blood flow restriction (LL-BFR) training has gained increasing interest in the scientific community by demonstrating that increases in muscle mass and strength are comparable to conventional high-load (HL) resistance training. Although adaptations on the muscular level are well documented, there is little evidence on how LL-BFR training affects human myotendinous properties....

Université de Fribourg

Mental imagery and colour cues can prevent interference between motor tasks

Lauber, Benedikt ; Kurz, Alexander ; Gollhofer, Albert ; Taube, Wolfgang

In: Neuropsychologia, 2019, vol. 124, p. 202–207

Motor interference can be observed when two motor tasks are learnt in subsequent order. The aim of the current study was to test two approaches potentially mitigating interference effects. The first approach used contextual colour cues requiring only little cognitive attention thus being assumed to be primarily implicit while the second, mental practice/rehearsal that demands much more active...

Université de Fribourg

Lower between-limb asymmetry during running on treadmill compared to overground in subjects with laterally pronounced knee osteoarthritis

Robadey, Jacques ; Staudenmann, Didier ; Schween, Raphael ; Gehring, Dominic ; Gollhofer, Albert ; Taube, Wolfgang

In: PLOS ONE, 2018, vol. 13, no. 10, p. e0205191

Subjects with knee osteoarthritis (KOA) show gait asymmetries evidenced by lower knee flexion and shorter contact times for the affected leg. Interestingly, running on a treadmill compared to running overground is also associated with lower knee flexion and shorter contact times. Thus, it is of particular interest how gait patterns are influenced by the type of ground in subjects with KOA....

Université de Fribourg

The effects of a single bout of exercise on motor memory interference in the trained and untrained hemisphere

Lauber, Benedikt ; Franke, Steffen ; Taube, Wolfgang ; Gollhofer, Albert

In: Neuroscience, 2017, vol. 347, p. 57–64

Increasing evidence suggests that cardiovascular exercise has positive effects on motor memory consolidation. In this study, we investigated whether a single session of high-intensity interval training (HIIT) mitigates the effects of practicing an interfering motor task. Furthermore, learning and interference effects were assessed in the actively trained and untrained limb as it is known that...

Université de Fribourg

Changes in corticospinal transmission following 8 weeks of ankle joint immobilization

Leukel, Christian ; Taube, Wolfgang ; Rittweger, Jörn ; Gollhofer, Albert ; Ducos, Michel ; Weber, Tobias ; Lundbye-Jensen, Jesper

In: Clinical Neurophysiology, 2015, vol. 126, no. 1, p. 131–139

Joint immobilization has previously been shown to modulate corticospinal excitability. The present study investigated changes in the excitability of distinct fractions of the corticospinal pathway by means of conditioning the H-reflex with transcranial magnetic stimulation (TMS) of the primary motor cortex (Hcond). This method allows assessment of transmission in fast (monosynaptic) and slow(er)...

Université de Fribourg

Cross-limb interference during motor learning

Lauber, Benedikt ; Lundbye-Jensen, Jesper ; Keller, Martin ; Gollhofer, Albert ; Taube, Wolfgang ; Leukel, Christian

In: PLoS ONE, 2013, vol. 8, no. 12, p. e81038

It is well known that following skill learning, improvements in motor performance may transfer to the untrained contralateral limb. It is also well known that retention of a newly learned task A can be degraded when learning a competing task B that takes place directly after learning A. Here we investigate if this interference effect can also be observed in the limb contralateral to the trained...

Université de Fribourg

Specific interpretation of augmented feedback changes motor performance and cortical processing

Lauber, Benedikt ; Keller, Martin ; Leukel, Christian ; Gollhofer, Albert ; Taube, Wolfgang

In: Experimental Brain Research, 2013, p. -

It is well established that the presence of external feedback, also termed augmented feedback, can be used to improve performance of a motor task. The present study aimed to elucidate whether differential interpretation of the external feedback signal influences the time to task failure of a sustained submaximal contraction and modulates motor cortical activity. In Experiment 1, subjects had to...

Université de Fribourg

Subconscious visual cues during movement execution allow correct online choice reactions

Leukel, Christian ; Lundbye-Jensen, Jesper ; Christensen, Mark Schram ; Gollhofer, Albert ; Nielsen, Jens Bo ; Taube, Wolfgang

In: PLoS ONE, 2012, vol. 7, no. 9, p. e44496

Part of the sensory information is processed by our central nervous system without conscious perception. Subconscious processing has been shown to be capable of triggering motor reactions. In the present study, we asked the question whether visual information, which is not consciously perceived, could influence decision-making in a choice reaction task. Ten healthy subjects (28±5 years) executed...

Université de Fribourg

How neurons make us jump: the neural control of stretch-Shortening cycle movements

Taube, Wolfgang ; Leukel, Christian ; Gollhofer, Albert

In: Exercise and Sport Sciences Reviews, 2012, vol. 40, no. 2, p. 106–115

How can the human central nervous system (CNS) control complex jumping movements task- and context-specifically? This review highlights the complex interaction of multiple hierarchical levels of the CNS, which work together to enable stretch-shortening cycle contractions composed of activity resulting from feedforward (preprogrammed) and feedback (reflex) loops.