Bilateral upper extremity trunk model for cross-country sit-skiing double poling propulsion: model development and validation

Chen, Xue; Huang, Yifan; Jiang, Liang; Sun, Qing; Tian, Yuan; Zhou, Zhixiong; Yin, Jun; Yan, Guozheng; Liu, Cheng‐Lin; Huo, Bo

doi:10.1007/s11517-022-02724-8

Cited by 4 publications

(3 citation statements)

References 34 publications

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“…We used a bilateral upper extremity trunk model for cross-country sit-skiing double poling propulsion 27 . The cross-country sit-skiing model is developed by combining three previously built OpenSim models.…”

Section: Methodsmentioning

confidence: 99%

Effects of poling camber angle on the biomechanics of cross-country sit-skiing

Tian,

Chen,

Liu

et al. 2023

Sci Rep

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Cross-country sit-skiers use double poling (DP) technique to drive the slide. The aim of this study is to analyze how poling camber angle affect the capacity of power output and biomechanical parameters of the DP process. Twenty-four non-disabled college students (24.67 ± 1.46 years old) were recruited to perform three successive 30-s maximal effort tests with different poling camber angles of 0°, 15°, 24° and 30° using a sit-skiing ergometer. The biomechanical parameters, output power and muscle activation of the subjects were analyzed. The results showed that DP output power increased with the increase of poling camber angle at 15° (597.78 ± 150.31 J), 24° (610.94 ± 158.96 J, P = 0.011) and 30° (629.10 ± 168.78 J, P < 0.001) compared with 0° (590.65 ± 148.95 J). However, effective output power decreased with the increase of camber angle. Poling with camber angle of 24° had the shortest cycle time 1.53 ± 0.17 s, compared with other abduction angle (0°, 1.57 ± 0.19 s, 15°, 1.55 ± 0.16 s, and 30°, 1.56 ± 0.19 s). Compared with 0° (1.02 ± 0.14 m), the cycle distance significantly increased at poling camber angles of 24° (1.07 ± 0.12 m, P = 0.029) and 30° (1.11 ± 0.13 m, P < 0.001). With the increase of poling camber angle, the shoulder and elbow joint range of motions and joint moments were significantly increased. This study found that poling with shoulder abducted increased the output power but decreased the efficiency. By analyzing the poling angle and poling force, we find that the optimal poling camber angle may depend on the terrain or the skiing speed. These results may guide the competition techniques and tactics in the matches, and may further influence the strength-training programs of cross-country sit-skiing athletes.

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Section: Methodsmentioning

confidence: 99%

Effects of poling camber angle on the biomechanics of cross-country sit-skiing

Tian,

Chen,

Liu

et al. 2023

Sci Rep

Self Cite

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“…Human motion simulation based on musculoskeletal models is another practical method for estimating muscle states, and it is useful for athletes’ physical training, sports optimization, and injury risk prediction. This technique has been applied to various competitive sports such as basketball [ 42 ], golf [ 43 ], cross-country sit skiing [ 44 ], and swimming [ 45 ]. In the present study, relevant research on the improved simulation method based on inverse dynamics was referenced, and the dynamic data during the ACL injury process of the weightlifter were simulated, including ground reaction forces, joint torques, muscle forces, and activation levels [ 46 ].…”

Section: Introductionmentioning

confidence: 99%

Biomechanical mechanisms of anterior cruciate ligament injury in the jerk dip phase of clean and jerk: A case study of an injury event captured on-site

Ye,

Liu,

et al. 2024

Heliyon

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“…Human locomotion simulation based on musculoskeletal model is another practical approach for estimating muscle state, which is useful for athletes’ physical training, motion optimization, and injury risk prediction. This technique has been applied to various competitive sports, such as basketball ( Akhundov et al, 2022 ), golf ( Mahadas et al, 2019 ), cross-country sit-skiing ( Chen et al, 2023 ), swimming ( Langholz et al, 2016 ), etc. Musculoskeletal simulation of ski jumping take-off has not yet been reported so far, possibly due to the difficulty of kinematic and external forces (GRF and aerodynamic force) acquisition in-field.…”

Section: Introductionmentioning

confidence: 99%

Musculoskeletal simulation of professional ski jumpers during take-off considering aerodynamic forces

Huang,

Jiang,

Chen

et al. 2023

Front. Bioeng. Biotechnol.

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Introduction: Musculoskeletal simulation has been widely used to analyze athletes’ movements in various competitive sports, but never in ski jumping. Aerodynamic forces during ski jumping take-off have been difficult to account for in dynamic simulation. The purpose of this study was to establish an efficient approach of musculoskeletal simulation of ski jumping take-off considering aerodynamic forces and to analyze the muscle function and activity.Methods: Camera-based marker-less motion capture was implemented to measure the take-off kinematics of eight professional jumpers. A suitable full-body musculoskeletal model was constructed for the simulation. A method based on inverse dynamics iteration was developed and validated to estimate the take-off ground reaction force. The aerodynamic forces, which were calculated based on body kinematics and computational fluid dynamics simulations, were exerted on the musculoskeletal model as external forces. The activation and joint torque contributions of lower extremity muscles were calculated through static optimization.Results: The estimated take-off ground reaction forces show similar trend with the results from past studies. Although overall inconsistencies between simulated muscle activation and EMG from previous studies were observed, it is worth noting that the activation of the tibialis anterior, gluteus maximus, and long head of the biceps femoris was similar to specific EMG results. Among lower extremity extensors, soleus, vastus lateralis, biceps femoris long head, gluteus maximus, and semimembranosus showed high levels of activation and joint extension torque contribution.Discussion: Results of this study advanced the understanding of muscle action during ski jumping take-off. The simulation approach we developed may help guide the physical training of jumpers for improved take-off performance and can also be extended to other phases of ski jumping.

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Bilateral upper extremity trunk model for cross-country sit-skiing double poling propulsion: model development and validation

Cited by 4 publications

References 34 publications

Effects of poling camber angle on the biomechanics of cross-country sit-skiing

Effects of poling camber angle on the biomechanics of cross-country sit-skiing

Biomechanical mechanisms of anterior cruciate ligament injury in the jerk dip phase of clean and jerk: A case study of an injury event captured on-site

Musculoskeletal simulation of professional ski jumpers during take-off considering aerodynamic forces

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