Three-Dimensional Lower Extremity Joint Loading in a Carved Ski and Snowboard Turn: A Pilot Study

Klous, Miriam; Müller, Erich; Schwameder, Hermann

doi:10.1155/2014/340272

Cited by 12 publications

(13 citation statements)

References 28 publications

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“…Thus, when skiing, the role of the ankle joint in the process of controlling balance is greatly limited, and the knee joints became the last moving element in the biokinematic chain of the lower limbs that controls the position of the body [12]. As a result of immobilising the foot in a ski boot, the majority of the functions that determine the movement of the centre of mass are taken over by the muscles that operate within the knee and hip joints.…”

Section: Discussionmentioning

confidence: 99%

“…Alpine skiing is an outdoor winter sport in which movement is generated by external forces, mainly gravity [12]. Unlike most sports, the technique used for movements in skiing is not aimed at generating a progressive or circular motion, because the lower (locomotive) limbs are immovably attached to the skis by ski boots and fastened with bindings.…”

Section: Introductionmentioning

confidence: 99%

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Influence of a nine-day alpine ski training programme on the postural stability of people with different levels of skills

Stanıszewski

Zybko

Wiszomirska

2016

Biomedical Human Kinetics

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SummaryStudy aim: In alpine skiing, balance is one of the key elements that determine the effectiveness of the ride. Because of ski boots, the foot and ankle joint complex is excluded from the process of maintaining the stability of the body. The aim of the study was to determine to what extent a few days of skiing activities and the level of technical skills affect the skiers' level of postural stability. Material and methods:The study involved 10 beginner (20.7 ± 1.1 years, 76.4 ± 8.7 kg, 184.4 ± 6.1 cm) and 10 advanced (20.5 ± 0.5 years, 80.5 ± 13.7 kg, 184.5 ± 9.5 cm) skiers, who participated in a nine-day ski training camp. Measurements of the postural stability were taken on the first and last days of the camp, on an AccuSway (AMTI, USA) stabilometric platform. Results: In both groups, a significant (p < 0.05) improvement in stability was observed after the training camp only while standing in ski boots. While standing on two feet, the participants were more stable barefoot (p < 0.05), and when standing on one foot they were more stable in the ski boot trial (p < 0.05). Conclusions: Skiing had a positive effect on the postural stability only in measurement conditions that were similar to those in which this stability was practiced, i.e. in measurements involving ski boots. The restriction of mobility within the ankle joint significantly influenced the training-induced changes in the postural stability of both beginner and advanced alpine skiers.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Influence of a nine-day alpine ski training programme on the postural stability of people with different levels of skills

Stanıszewski

Zybko

Wiszomirska

2016

Biomedical Human Kinetics

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“…In freestyle snowboarding aerial disciplines, technical errors usually have strong impact on landing. Consequently, the landing has been the most studied phase of motion, both in terms of kinematic and kinetic variables (Delorme et al, 2005;McAlpine and Kersting, 2006;McAlpine et al, 2012;Klous et al, 2014;Klous et al, 2014). However, there are no data about the flight phase of snowboarding with quantitative measurements.…”

Section: Introductionmentioning

confidence: 99%

Movement Variability During the Flight Phase in a Single Back Sideflip (Wildcat) in Snowboarding

Bacik

Kurpas

Marszałek

et al. 2020

Journal of Human Kinetics

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Understanding the structure and variability of motion is essential for sports technique development and an effective training design. Biomechanical analysis is particularly important in new disciplines with spatially complex motions, such as snowboarding. This study aimed to evaluate the level of variability of the kinematic variables in a single backside snowboard flip known as a “wildcat”. Forty-six correct flips performed by 7 experienced athletes (age: 24.9 ± 4.34 year; body mass: 71.6 ± 12.87 kg; body height: 177.4 ± 6.99 cm) were recorded using an optoelectronic VICON system in the controlled setting of an indoor freestyle park. Athletes were equipped with special boards with wheels and the geometry of the ramps corresponded to the actual on-snow conditions. The analysis revealed two distinct single flip strategies, which differed in the way the tuck position was sustained. For all the measured variables, the coefficient of variation was computed, which allowed to identify the athlete with the highest (average 45.3%) and lowest (average 20.5%) variability of kinematic variables. Moreover, it was shown that the lowest values of the coefficient of variation occurred at the end of the grouping phase (average 14%) and that among all the different variables, those related to the duration of motion were most unstable (average 63%, SD = 48.5%).

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“…In winter sports such as snowboarding and skiing, posture control is an element that can be assessed in relation to many different aspects [5]. For instance, Platzer et al [6] evaluated the one-legged stance among members of the Austria national snowboarding team using the biodex balance system platform.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of laterality in the snowboard basic position

Stanıszewski¹,

Zybko²,

Wiszomirska³

2019

Hum Mov.

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Purpose. snowboarding requires a lateral positioning of the body. Moreover, a person must continuously control their balance and use this in order to manoeuvre on the slope applying properly pressure on the lower limb closest to the nose of the board (the leading leg). The present study is an attempt to determine the interdependencies between side preference while snowboarding and laterality when performing other tasks. The dynamic stability in the neutral standing position, as well as in the lateral positions (left or right) was also evaluated. Methods. The survey participants (100 active snowboarders) answered a set of questions concerning laterality while carrying out basic everyday tasks and while doing sports. The respondents were divided into two groups based on their preferred leading side in snowboarding. Additionally, in the case of 34 people, muscle torques values of the lower limbs were measured under static conditions and the postural stability was evaluated using Accusway AMTI platform and biodex balance system platform. Results. Over 90% of the participants declared right-handedness and right-footedness. However, with regard to snowboarding, only 66% indicated their right leg as leading. No significant dependence was found between the directional stance on the board and the leading hand, dominant leg, or leading eye. The stability measurements revealed statistically significant differences between the neutral stance and the lateral positioning. Conclusions. based on the study results, it may be assumed that the declared directional stance on the snowboard is not contingent on the person's basic laterality, and that the lateral stance on the board significantly affects the posture control.

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Three-Dimensional Lower Extremity Joint Loading in a Carved Ski and Snowboard Turn: A Pilot Study

Cited by 12 publications

References 28 publications

Influence of a nine-day alpine ski training programme on the postural stability of people with different levels of skills

Influence of a nine-day alpine ski training programme on the postural stability of people with different levels of skills

Movement Variability During the Flight Phase in a Single Back Sideflip (Wildcat) in Snowboarding

Evaluation of laterality in the snowboard basic position

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