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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

Accuracy of elevation recording using sport watches while walking and running on hilly and flat terrain

Ammann, Rahel ; Taube, Wolfgang ; Kummer, Fabian ; Wyss, Thomas

In: Sports Engineering, 2016, vol. 19, no. 4, p. 283–287

Elevation gain (EG) is a significant contributor to the total workload in many endurance sports. Hence, the aim of this study was to evaluate the accuracy of elevation recording as assessed by popular sport watches. Eighteen participants walked and ran at different speeds in various weather conditions in two terrain types: on a hilly 2490 m course with a total EG of 90 m and on a flat 1200 m...

Université de Fribourg

The influence of the gait-related arm swing on elevation gain measured by sport watches

Ammann, Rahel ; Taube, Wolfgang ; Neuhaus, Matthias ; Wyss, Thomas

In: Journal of Human Kinetics, 2016, vol. 50, no. 2, p. 53–60

The elevation gain is an important contributor to the total workload in endurance sports. The purpose of this study was to evaluate the influence of the arm swing on elevation gain in three sport watches (Garmin® Forerunner 910XT, Polar® RS800CX and Suunto® Ambit2) on a flat 400 m outdoor track. Altogether, a total of 120 repetitions of 1,200 m were performed at self-selected speeds...

Université de Fribourg

Accuracy of PARTwear inertial sensor and Optojump optical measurement system for measuring ground contact time during running

Rahel, Ammann ; Taube, Wolfgang ; Wyss, Thomas

In: Journal of Strength and Conditioning Research, 2016, p. -

The aim of this study was to validate the detection of ground contact time (GCT) during running in two differently working systems: a small inertial measurement sensor, PARTwear (PW), worn on the shoe laces, and the optical measurement system, Optojump (OJ), placed on the track. Twelve well-trained subjects performed 12 runs each on an indoor track at speeds ranging from 3.0 - 9.0 m[middle...

Université de Fribourg

Musculoskeletal injuries and training patterns in junior elite orienteering athletes

Roos, Lilian ; Taube, Wolfgang ; Zuest, Peter ; Clénin, German ; Wyss, Thomas

In: BioMed Research International, 2015, vol. 2015, p. e259531

Findings about the relation between musculoskeletal injuries and training patterns in orienteering athletes are sparse. Therefore, the musculoskeletal injuries and training patterns of 31 Swiss elite orienteering athletes aged 18-19 years were analyzed in a retrospective study. Individual training diaries and medical records were used to assess training data and injury history, respectively....