Ski Position during the Flight and Landing Preparation Phases in Ski Jumping Detected with Inertial Sensors.
Sensors (Basel)
; 19(11)2019 Jun 06.
Article
en En
| MEDLINE
| ID: mdl-31174278
ABSTRACT
Ski movement plays an important role during landing preparation, as well as in the whole ski jumping performance. Good landing preparation timing and correct ski position increase the jump length and reduce the impact forces. Inertial motion units (IMUs) placed on the skis could constitute a promising technology for analyzing the ski movements during training. During regular summer trainings, 10 elite athletes (17 ± 1 years) performed jumps while wearing IMUs and wireless force insoles. This set-up enabled the analysis of a possible correlation between ski movements and ground reaction force (GRF) during landing impact. The results showed that the pitch during the landing preparation is the most influential movement on the impact kinetic variables since it is related to the angle of attack, which affects the aerodynamics. The ski position at 0.16 s before landing did not influence the kinetics because the athlete was too close to the ground. During the impact, the roll angle did not correlate with GRF. Moreover, each athlete showed a different movement pattern during the flight phase. Concluding, the combination of IMUs and force insoles is a promising set-up to analyze ski jumping performance thanks to the fast placement, low weight, and high reliability.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Esquí
/
Atletas
/
Tecnología Inalámbrica
/
Movimiento
Límite:
Humans
Idioma:
En
Revista:
Sensors (Basel)
Año:
2019
Tipo del documento:
Article
País de afiliación:
Alemania