The effect of foot setting on kinematic and kinetic skiing parameters during giant slalom: a single subject study on a Paralympic gold medalist sit skier

Petrone, Nicola; Vanzetto, Dario; Marcolin, Giuseppe; Brühin, Björn; Gilgien, Matthias (2021). The effect of foot setting on kinematic and kinetic skiing parameters during giant slalom: a single subject study on a Paralympic gold medalist sit skier Journal of Science and Medicine in Sport, 24(10), pp. 1049-1054. Elsevier 10.1016/j.jsams.2020.08.010

[img] Text
Bruhin_2021_The effect of foot setting on kinematic and kinetic skiing parameters during giant slalom.pdf - Published Version
Restricted to registered users only
Available under License Publisher holds Copyright.

Download (1MB) | Request a copy

Objectives: Aim was to study the effect of monoski foot adjustment on kinematic and kinetic skiing parameters expressing sit skier’s technique. Design: Independent variable was skier position with respect to bindings, acting on position of monoski foot sole clamp. Front (F), Mid (M) and Rear (R) settings changed with intervals of 20 mm. Course time, skiing speed, Ground Reaction Forces (GRFs) magnitude and point of application and damper stroke were dependent variables. Method: A Paralympic monoski was equipped with a dynamometric binding plate measuring GRFs, roll and pitch moments. A Paralympic gold medalist (LW10-1) was involved. Skier trajectory and gates location were measured by a differential global navigation satellite system (GNSS) in steep and medium steep slope portions. The athlete performed two giant slalom runs for each foot setting the same day. Results: GRFs, center of pressure (COP) and variations with foot settings were measured. Peaks values up to 3.36 times the total weight and damper speed of 675 mm/s in compression were found. Fastest runs, highest peak loads and best subjective ratings were recorded with F setting. COP mean values were influenced by foot adjustments. GRFs in left turns were 54% larger than in the right turns with F setting on steep slope. Conclusions: The monoski foot adjustment influenced kinematic and kinetic skiing, with F setting showing best results. A skier asymmetric behavior between right and left turning was discovered. Findings can support the design of monoskis for a wider dissemination of Paralympic alpine sit skiing.

Item Type:

Journal Article (Original Article)

Division/Institute:

Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Trainingswissenschaft

Name:

Petrone, Nicola;
Vanzetto, Dario;
Marcolin, Giuseppe;
Brühin, Björn and
Gilgien, Matthias

ISSN:

1440-2440 (Print) 1878-1861 (Online)

Publisher:

Elsevier

Language:

English

Submitter:

Admin import user

Date Deposited:

23 May 2022 14:49

Last Modified:

23 May 2022 14:49

Publisher DOI:

10.1016/j.jsams.2020.08.010

PubMed ID:

32998849

Uncontrolled Keywords:

Paralympic alpine sit skiing Giant slalom Monoski adjustment Kinematics Ground reaction forces GNSS

ARBOR DOI:

10.24451/arbor.16870

URI:

https://arbor.bfh.ch/id/eprint/16870

Actions (login required)

View Item View Item
Provide Feedback