Biomechanics of Alpine Skiing

Minetti, Alberto E.

doi:10.1007/978-3-319-61355-0_1

Cited by 3 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It can affect the pressure distribution of the skis and the overall center of gravity through the angles of the knees and thighs. Therefore, the relative angles of the knees and thighs to some extent reflect the skier’s skill and movement level [ 30 ]. The gliding wedge is a snow technique that controls the skis to form a wedge angle for braking and deceleration.…”

Section: Resultsmentioning

confidence: 99%

SnowMotion: A Wearable Sensor-Based Mobile Platform for Alpine Skiing Technique Assistance

Tang,

Suo,

Wang

et al. 2024

Sensors

View full text Add to dashboard Cite

Skiing technique and performance improvements are crucial for athletes and enthusiasts alike. This study presents SnowMotion, a digital human motion training assistance platform that addresses the key challenges of reliability, real-time analysis, usability, and cost in current motion monitoring techniques for skiing. SnowMotion utilizes wearable sensors fixed at five key positions on the skier’s body to achieve high-precision kinematic data monitoring. The monitored data are processed and analyzed in real time through the SnowMotion app, generating a panoramic digital human image and reproducing the skiing motion. Validation tests demonstrated high motion capture accuracy (cc > 0.95) and reliability compared to the Vicon system, with a mean error of 5.033 and a root-mean-square error of less than 12.50 for typical skiing movements. SnowMotion provides new ideas for technical advancement and training innovation in alpine skiing, enabling coaches and athletes to analyze movement details, identify deficiencies, and develop targeted training plans. The system is expected to contribute to popularization, training, and competition in alpine skiing, injecting new vitality into this challenging sport.

show abstract

Section: Resultsmentioning

confidence: 99%

SnowMotion: A Wearable Sensor-Based Mobile Platform for Alpine Skiing Technique Assistance

Tang,

Suo,

Wang

et al. 2024

Sensors

View full text Add to dashboard Cite

show abstract

“…Although we did not expect radical differences in strategy effects, we anticipated a greater emphasis on rocking the skis forward in gates with a 2.2-meter offset than in those with a 1.2-meter offset to enhance turn exit release. Both courses were set with stubbies (short gates) instead of long gates to minimize energy dissipation upon hitting the gate [46]. Using long gates can also be a distracting element in that skiers' attention is allocated to clearing the gate instead of focusing on executing the skill.…”

Section: The Setupmentioning

confidence: 99%

Reinforcement learning enhances training and performance in skilled alpine skiers compared to traditional coaching instruction

Magelssen,

Gilgien,

Tajet

et al. 2024

Preprint

View full text Add to dashboard Cite

Skilled performers need skillful and adaptive movement strategies to solve tasks effectively. Typically, performers learn these strategies with instruction-based teaching methods where coaches offer performers a correct solution. Inspired by recent evidence from decision neuroscience, we asked whether skilled performers learn strategy choices better with an evaluation-based training strategy (reinforcement learning). To address this question, we conducted a three-day learning experiment with skilled alpine ski racers (n=98) designed to improve their performance on flat slopes on slaloms with four strategies at their disposal to achieve this goal. We compared performance and strategy choices of three groups: a reinforcement learning group, that only received feedback about their race times after every run, a supervised (free choice) learning group, that received strategy instructions from their coach, and a supervised (target skill) learning group, being coached to use the theoretically optimal strategy for skiing well on flats. We found that despite making similar strategy choices, the skiers in the reinforcement learning group, showed greater improvements in their race times during the training sessions than their counterparts in the supervised (free choice) learning group and outperformed them during a subsequent retention test. Surprisingly, the skiers in the reinforcement learning group even showed descriptively (but not significantly) better performance than those in the supervised (target skill) learning group. Our findings show that reinforcement learning can be an effective training strategy for improving strategy choices and performance among skilled performers, even among the best ones.

show abstract

“…Competitive alpine skiing is a physically demanding sport that places considerable loads on the skiers' bodies. [1][2][3] The high prevalence of traumatic injuries has led to the topic being the subject of research for several years now. [4][5][6] In contrast, comparatively little research has been conducted in the area of overuse injuries, 7 despite the fact that they outnumber traumatic injuries manifold.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the aims of this study were (1) to evaluate the reliability of quantifying thigh muscle activation patterns and dynamic knee valgus at peak ground reaction force during DJ landings, (2) to provide reference values for female and male youth competitive alpine skiers, and (3) to study their associations with age, anthropometrics, biological maturation and the occurrence of knee overuse complaints.…”

Section: Introductionmentioning

confidence: 99%

Thigh muscle activation patterns and dynamic knee valgus at peak ground reaction force during drop jump landings: Reliability, youth competitive alpine skiing-specific reference values and relation to knee overuse complaints

Ellenberger

Casutt

Fröhlich

et al. 2021

Journal of Science and Medicine in Sport

View full text Add to dashboard Cite

show abstract

Biomechanics of Alpine Skiing

Cited by 3 publications

References 5 publications

SnowMotion: A Wearable Sensor-Based Mobile Platform for Alpine Skiing Technique Assistance

SnowMotion: A Wearable Sensor-Based Mobile Platform for Alpine Skiing Technique Assistance

Reinforcement learning enhances training and performance in skilled alpine skiers compared to traditional coaching instruction

Thigh muscle activation patterns and dynamic knee valgus at peak ground reaction force during drop jump landings: Reliability, youth competitive alpine skiing-specific reference values and relation to knee overuse complaints

Contact Info

Product

Resources

About