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Université de Fribourg

Measuring physical load in soccer: strengths and limitations of 3 different methods

Fischer-Sonderegger, Karin ; Taube, Wolfgang ; Rumo, Martin ; Tschopp, Markus

In: International Journal of Sports Physiology and Performance, 2019, vol. 14, no. 5, p. 627–634

To investigate the strengths and limitations of different indicators to measure physical load. Furthermore, indicators were evaluated for discrimination between performance levels and playing positions. Methods: Ninety positional match files from 70 elite players and 91 match files from 69 subelite players were collected during 14 official under-18 matches using a local position measurement...

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

Validity of sports watches when estimating energy expenditure during running

Roos, Lilian ; Taube, Wolfgang ; Beeler, Nadja ; Wyss, Thomas

In: BMC Sports Science, Medicine and Rehabilitation, 2017, vol. 9, p. 22

The aim of this study was to assess the accuracy of three different sport watches in estimating energy expenditure during aerobic and anaerobic running.

Université de Fribourg

Gait asymmetry during 400- to 1000-m high-intensity track running in relation to injury history

Gilgen-Ammann, Rahel ; Taube, Wolfgang ; Wyss, Thomas

In: International Journal of Sports Physiology and Performance, 2016, vol. 12, no. Suppl 2, p. S2-157

Purpose: To quantify gait asymmetry in well-trained runners with and without previous injuries during interval training sessions incorporating different distances.Methods: Twelve well-trained runners participated in 8 high-intensity interval-training sessions on a synthetic track over a 4-wk period. The training consisted of 10 × 400, 8 × 600, 7 × 800, and 6 × 1000-m running. Using an...

Université de Fribourg

Changes in balance coordination and transfer to an unlearned balance task after slackline training: a self-organizing map analysis

Serrien, Ben ; Hohenauer, Erich ; Clijsen, Ron ; Taube, Wolfgang ; Baeyens, Jean-Pierre ; Küng, Ursula

In: Experimental Brain Research, 2017, vol. 235, no. 11, p. 3427–3436

How humans maintain balance and change postural control due to age, injury, immobility or training is one of the basic questions in motor control. One of the problems in understanding postural control is the large set of degrees of freedom in the human motor system. Therefore, a self-organizing map (SOM), a type of artificial neural network, was used in the present study to extract and...

Université de Fribourg

Effects of age on the soccer-specific cognitive-motor performance of elite young soccer players: Comparison between objective measurements and coaches’ evaluation

Hicheur, Halim ; Chauvin, Alan ; Chassot, Steve ; Chenevière, Xavier ; Taube, Wolfgang

In: PLOS ONE, 2017, vol. 12, no. 9, p. e0185460

The cognitive-motor performance (CMP), defined here as the capacity to rapidly use sensory information and transfer it into efficient motor output, represents a major contributor to performance in almost all sports, including soccer. Here, we used a high-technology system (COGNIFOOT) which combines a visual environment simulator fully synchronized with a motion capture system. This system...

Université de Fribourg

Supervised slackline training improves postural stability

Pfusterschmied, Jürgen ; Buchecker, Michael ; Keller, Martin ; Wagner, Herbert ; Taube, Wolfgang ; Müller, Erich

In: European Journal of Sport Science, 2013, vol. 13, no. 1, p. 49-57

The present study investigated whether or not four weeks of supervised slackline training (SLT) performed on nylon webbing improves postural stability. Twenty-four healthy adults participated in the study and were assigned to either SLT (n=12) or a control (CON) group (n=12). The SLT group completed a four week training program, while the CON group received no training. Centre of gravity...

Université de Fribourg

Improved postural control after slackline training is accompanied by reduced H-reflexes

Keller, M. ; Pfusterschmied, J. ; Buchecker, M. ; Müller, E. ; Taube, Wolfgang

In: Scandinavian Journal of Medicine & Science in Sport, 2012, vol. 22, no. 4, p. 471–477

“Slacklining” represents a modern sports activity where people have to keep balance on a tightened ribbon. The first trials on the slackline result in uncontrollable lateral swing of the supporting leg. Training decreases those oscillations and therefore improves postural control. However, the underlying neural mechanisms are not known. Therefore, the present study aimed to highlight...

Université de Fribourg

The effect of whole body vibration on the H-reflex, the stretch reflex, and the short-latency response during hopping

Ritzmann, R. ; Kramer, A. ; Gollhofer, Albert ; Taube, Wolfgang

In: Scandinavian Journal of Medicine & Science in Sports, 2011, p. -

The effect of whole body vibration (WBV) on reflex responses is controversially discussed in the literature. In this study, three different modalities of reflex activation with increased motor complexity have been selected to clarify the effects of acute WBV on reflex activation: (1) the electrically evoked H-reflex, (2) the mechanically elicited stretch reflex, and (3) the short-latency...