Acta of bioengineering and biomechanics最新文献

Blood flow simulations in a cerebral aneurysm secured by a Flow Diverter stent. 血流分流支架固定的脑动脉瘤血流模拟。

Acta of bioengineering and biomechanics Pub Date : 2025-07-05 DOI: 10.37190/abb-205428

Zbigniew Tyfa, Karol Wiśniewski, Piotr Reorowicz, Krzysztof Jóźwik

{"title":"Blood flow simulations in a cerebral aneurysm secured by a Flow Diverter stent.","authors":"Zbigniew Tyfa, Karol Wiśniewski, Piotr Reorowicz, Krzysztof Jóźwik","doi":"10.37190/abb-205428","DOIUrl":"https://doi.org/10.37190/abb-205428","url":null,"abstract":"Objective: The objective of this research was to show a potential use of computational fluid dynamics tools in supporting the medical personnel by offering objective data regarding the hemodynamic changes in the aneurysm caused by implanting different models of the stent. Methods: The authors reconstructed patient-specific model of the cerebral arteries with diagnosed aneurysm. Then, four virtual models of the Flow Diverter stent (with varied nominal diameters) were prepared. During the numerical analyses, the Immersed Solid Method was used to model the presence of the stent wirebraid. After performing steady state and transient simulations of non-Newtonian blood flow in pre- and post-treatment models, changes in numerous hemodynamic parameters were analysed. Results: The results confirmed that stent porosity influences hemodynamic changes inside the aneurysm (for presented case studies). The less porous the stent, the more it promotes the possible intrasaccular thrombosis. This could be concluded by observing larger regions of stagnant blood with higher viscosity. Additionally, the denser the stent, the lower and more uniform the stress exerted on the aneurysm wall. Conclusions: Numerical simulations can provide valuable insight into phenomena occurring inside the blood flow after implanting the stent. This can support selecting optimal stent configuration for the particular patient and, consequently, can help in planning the endovascular procedure.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Diversity in body composition, segmental muscle mass distribution and isometric strength in team sports. 团体运动中身体组成、节段性肌肉质量分布和等长力量的多样性。

Acta of bioengineering and biomechanics Pub Date : 2025-07-05 DOI: 10.37190/abb-204781

Aleksandra Stachoń, Jadwiga Pietraszewska, Anna Burdukiewicz

{"title":"Diversity in body composition, segmental muscle mass distribution and isometric strength in team sports.","authors":"Aleksandra Stachoń, Jadwiga Pietraszewska, Anna Burdukiewicz","doi":"10.37190/abb-204781","DOIUrl":"https://doi.org/10.37190/abb-204781","url":null,"abstract":"Purpose: Regular training causes the human body to adapt to the load, and specific changes occur in the soft tissues affecting the body composition. In this study, we analyzed differences in body composition, segmental muscle mass and isometric strength in soccer players, basketball players, handball players and volleyball players. Methods: Height and weight were measured in 96 men aged 20.7 ± 1.88 years training in academic sports clubs in Wrocław (Poland): football (n = 24, age: 20.3 ± 1.08 years), basketball (n = 24, age: 20.9 ± 1.83 years), handball (n = 24, age: 21.2 ± 1.90 years) and volleyball (n = 24, age: 20.3 ± 1.06 years). Body composition was assessed using BIA and SBIA. Motor tests were conducted to assess grip strength and back strength. Results: It occurred that soccer players are characterized by significantly lower height. Handball players have higher body cell mass and better results in strength tests. Additionally, they have a less muscular torso and more strongly muscled legs. Basketball players, handball players and volleyball players are characterized by a more muscular right side of the torso. Football players are distinguished by greater muscularity of the right lower limb. Among volleyball players, greater muscularity of the right upper limb was noted. In football, handball and basketball players, significantly greater right hand strength was observed. Conclusions: It can be concluded that training load in team games shapes specific differences in body composition and isometric strength. Team game players also tend to develop directional asymmetries in the musculature of body segments and grip strength.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of protective performance of children helmets via biomechanical modelling. 基于生物力学模型的儿童头盔防护性能评价。

Acta of bioengineering and biomechanics Pub Date : 2025-07-05 DOI: 10.37190/abb-204990

Pengcheng Zhou, Guibing Li, Xinyu Wang

{"title":"Evaluation of protective performance of children helmets via biomechanical modelling.","authors":"Pengcheng Zhou, Guibing Li, Xinyu Wang","doi":"10.37190/abb-204990","DOIUrl":"https://doi.org/10.37190/abb-204990","url":null,"abstract":"Purpose: The purpose of the current study was to compare the protective performance of helmet designs with different sizes and cushion materials for skull and brain injuries in children. Methods: A 6-year-old child head finite element (FE) model with high biofidelity was used to conduct impact simulations under the protection of helmets with different sizes (small, medium and large) and cushion materials (EPS-expanded polystyrene, PU-polyurethane and airbag) according to the testing conditions specified by the standard. Then, the protective performance of different helmet designs was evaluated by assessing skull and brain injury risk calculated based on the kinematic and biomechanical response of the child head model. Results: The skull fracture risk of children under the protection of airbag helmets is lower than that of EPS and PU helmets by more than 50%. Large-sized helmets, with thicker padding, show better protective capability for skull injury compared to small-sized helmets. The risk of brain injury under airbag helmet protection is significantly lower than EPS and PU helmet under 4.8 m/s sharp anvil impact test condition, and small sized helmet could generally reduce brain injury risk under the 6.2 m/s flat anvil impact test condition. However, no obvious effect has been found of helmet size and material to brain injury risk in the impact scenarios at 6.2 m/s. Conclusions: The size and cushion material of the helmet have a significant influence on its skull injury protection performance, but their effect pattern on brain injury protection capability is not obvious. The use of airbag helmets with larger buffering stroke can effectively reduce both the risk of skull and brain injuries under relatively low impact loads.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The magnitude of external fall-inducing forces in subjects using the DreamMotion exoskeleton prototype in static body positions - a pilot study. 使用DreamMotion外骨骼原型的受试者在静态身体位置上的外部跌倒诱导力的大小-一项试点研究。

Acta of bioengineering and biomechanics Pub Date : 2025-07-05 DOI: 10.37190/abb-204782

Piotr Woźniak, Rafał Gnat, Anna Gogola, Katarzyna Fedejko-Kaflowska, Łukasz Rydzik, Tadeusz Ambroży

{"title":"The magnitude of external fall-inducing forces in subjects using the DreamMotion exoskeleton prototype in static body positions - a pilot study.","authors":"Piotr Woźniak, Rafał Gnat, Anna Gogola, Katarzyna Fedejko-Kaflowska, Łukasz Rydzik, Tadeusz Ambroży","doi":"10.37190/abb-204782","DOIUrl":"https://doi.org/10.37190/abb-204782","url":null,"abstract":"Purpose: Exoskeleton robots are becoming increasingly popular due to improved robotic technologies and the positive perception of users. Lower limb exoskeletons are the most widely used as assistive devices for people with disabilities. The aim of the study was to determine the magnitude of forces necessary to induce the fall of a person using the Polish prototype of the exoskeleton robot. Methods: Sixteen volunteers used DreamMotion prototype designed to perform medical tasks was tested. Measurements of the fall-inducing forces were performed in compliance with safety standards. Assessed were fall-inducing forces acting in various directions in 3 static, vertical body positions. In each test position, 10 trials were completed resulting in the effective measurement. Results: In the 2-leg standing with posterior vector direction, the lowest value of fall-inducing force was recorded (mean 1.50 kG). Also, in 1-leg standing position, the lowest value of the fall-inducing force was recorded with posterior vector direction (1.66 kG). In the step position, the highest fall-inducing forces were recorded with the posterior (8.58 kG) and anterior (6.37 kG) vector directions, the lowest - with the lateral vector direction towards the stepping limb (3.26 kG). Conclusions: The forces required to induce a fall in a person wearing the exoskeleton robot are relatively low, with relative forces ranging from 1.45% to 8.30% of the subject-ER setup weight. In both the 2-leg and 1-leg standing positions, the lowest fall-inducing forces were recorded when the force vector was directed posteriorly. The exoskeleton robot's design will likely need to be modified to enhance safety in this particular direction.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144568300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical analysis and sensitivity evaluation of PLA scaffolds for bone tissue repair using FEA and Taguchi experimental design. 采用有限元分析和田口实验设计对聚乳酸骨组织修复支架进行力学分析及敏感性评价。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02572-2024-03

Diego Vásquez, Luis Medina, Gabriela Martínez

{"title":"Mechanical analysis and sensitivity evaluation of PLA scaffolds for bone tissue repair using FEA and Taguchi experimental design.","authors":"Diego Vásquez, Luis Medina, Gabriela Martínez","doi":"10.37190/abb-02572-2024-03","DOIUrl":"10.37190/abb-02572-2024-03","url":null,"abstract":"Purpose: The design of three-dimensional scaffolds for bone regeneration poses challenges in balancing mechanical strength, porosity and degradability. This study aimed to optimize the geometric parameters of polylactic acid (PLA) scaffolds fabricated via 3D printing, focusing on pore size, porosity, and geometric configurations to enhance mechanical performance and biological functionality. Methods: Two geometric configurations - orthogonal and offset orthogonal - were evaluated with pore sizes ranging from 400-1000 µm and porosities between 55-70%. Finite element analysis (FEA) in ANSYS Workbench was used to simulate mechanical behavior, while the Taguchi experimental design determined the optimal parameter combinations. Statistical analyses, including ANOVA, assessed the significance of each factor. Results: The study identified a pore size of 400 µm as optimal for structural strength, while a porosity of 70% provided a balance between stability and cell growth. Orthogonal geometries distributed stress more uniformly, reducing critical stress concentrations compared to offset configurations. ANOVA revealed that pore size was the most significant factor, followed by porosity and geometry, achieving a model reliability of R 2 = 98.42%. Conclusions: The findings highlight the importance of geometric optimization for improving scaffold mechanical properties while maintaining biological functionality. This study offers a robust framework for designing patient-specific scaffolds tailored to bone tissue engineering applications.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":"69-81"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144002081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of cognitive tasks on balance abilities in U-12 gymnasts, handball players and video gamers. 认知任务对U-12体操运动员、手球运动员和电子游戏玩家平衡能力的影响。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02589-2025-02

Besma Bel-Hadj Boubaker, Samiha Amara, Bessem Mkaouer

{"title":"Effect of cognitive tasks on balance abilities in U-12 gymnasts, handball players and video gamers.","authors":"Besma Bel-Hadj Boubaker, Samiha Amara, Bessem Mkaouer","doi":"10.37190/abb-02589-2025-02","DOIUrl":"10.37190/abb-02589-2025-02","url":null,"abstract":"Purpose: This study aimed to investigate the immediate effects of cognitive tasks on static and dynamic balance in gymnasts, handball players and video gamers under the age of 12 years, using dual-task paradigm. Methods: A sample of 50 children under the age of 12 years was divided into three groups (i.e., gymnasts, handball players and video gamers). They participated in a dual-task experiment involving mental rotation tasks with static and dynamic balance assessments. Participants performed mental rotation tasks (i.e., object- based 3D cube and human body conditions) while simultaneously maintaining static and/or dynamic balance on a stabilometric platform. Center of pressure sway, acceleration and displacement were measured. Performance in both cognitive and balance tasks was recorded and analyzed. Results: The results revealed significant immediate beneficial effects of cognitive tasks on dynamic balance. Specifically, dual tasks led to improved performance in mental rotation tasks and enhanced postural control, as evidenced by a reduced center of pressure sway ( p < 0.01). Athletes demonstrated greater improvements than non-athletes, highlighting the effectiveness of cognitive engagement in improving postural control. Conclusion: These results suggest that participation in sports during childhood can significantly enhance neuromuscular control and balance, which are critical for maintaining stability. The findings highlight the importance of integrating cognitive challenges into physical training. This approach enhances both cognitive and motor performance in young athletes.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"27 1","pages":"131-142"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship of kinetic and somatic variables to kicking strength in female taekwon-do athletes. 女跆拳道运动员蹬腿力量的动力与躯体变量关系。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02592-2025-02

Tomasz Góra, Jacek Wąsik, Dariusz Mosler, Dorota Ortenburger

{"title":"Relationship of kinetic and somatic variables to kicking strength in female taekwon-do athletes.","authors":"Tomasz Góra, Jacek Wąsik, Dariusz Mosler, Dorota Ortenburger","doi":"10.37190/abb-02592-2025-02","DOIUrl":"10.37190/abb-02592-2025-02","url":null,"abstract":"Purpose: The objective of this study is to ascertain how specific somatic traits and kinematic indices influence the force of a punch, contingent on the type of kick (i.e., turning kick and side kick). Methods: One hundred kicks were performed by five female elite ITF taekwon-do (International Taekwon-do Federation) athletes (aged 27.0 ± 4.8 years, body mass 64.2 ± 5.8 kg, height 163.0 ± 6.5 cm). To record the force of the impact, a strain gauge platform padded with a training disc was used as a target to protect the participants from direct impact on a force plate mounted on a stable structure. Results: The study demonstrated that the side kicks of female taek- won-do athletes achieved, on average, a higher peak pressure force (1770 N) than the turning kick (1379 N) ( p < 0.01). Conversely, the lower limb segments demonstrate an inverse trend in terms of average peak acceleration values. The effective mass values recorded in this study expressed as a percentage of the athletes' total body mass, were approximately 18% for the turning kick and 85% for the side kick. Conclusions: The findings of these studies demonstrate that pressure force evidently increases with rising effective mass. However, no correlation was observed between the acceleration of the foot and the other segments of the lower limb. The calculated β* factor indicates that there are no lateralisation differences in pressure force between kicks performed with the right and left leg.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"27 1","pages":"203-209"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and research of a bredigite bone repair scaffold. bredigite骨修复支架的设计与研究。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02525-2024-02

Tingxin Liang, Fei Wang, Jing Li, Yanbin Shi, Pengbo Liu, Shuaishuai Lu

{"title":"Design and research of a bredigite bone repair scaffold.","authors":"Tingxin Liang, Fei Wang, Jing Li, Yanbin Shi, Pengbo Liu, Shuaishuai Lu","doi":"10.37190/abb-02525-2024-02","DOIUrl":"10.37190/abb-02525-2024-02","url":null,"abstract":"Purpose: The fluid shear stress (FSS) generated by fluid flow after scaffold implantation is an important factor affecting the osteogenic ability of scaffolds and the proliferation and differentiation of osteoblasts are also affected by FSS. When the bone injury occurs, the blood flow at the defect changes from laminar flow to turbulent flow. Consequently, it is essential to employ a numerical simulation method that accurately reflects the actual conditions to study and analyze the surface FSS experienced by scaffolds and cells, thereby enhancing the osteogenic properties of the scaffolds. Methods: In this research, nine scaffolds with different structures and pore sizes were designed. The two-way fluid-structure interaction (FSI) method was used to evaluate scaffolds' internal flow field velocity and the surface FSS of scaffolds and cells. Results: The results show that the velocity distribution of different scaffolds is basically the same. FSS on the scaffold surface and FSS on cell surface decreased with the increase of scaffold pore size. FSS accepted by cells was much larger than that received by scaffolds, and FSS was distributed in a stepped pattern on the cell surface. Conclusions: Based on the FSS of the scaffold and cell surface, the triangle-600 and triangle-800 scaffolds have better osteogenic differentiation ability. This provides a more practical strategy for tissue engineering to design better scaffolds.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":" ","pages":"3-12"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144049860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Balancing challenges: exploring postural stability in osteogenesis imperfecta. 平衡挑战：探索成骨不全症的姿势稳定性。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02610-2025-02

Krzysztof Graff, Katarzyna Kaczmarczyk, Małgorzata Syczewska

{"title":"Balancing challenges: exploring postural stability in osteogenesis imperfecta.","authors":"Krzysztof Graff, Katarzyna Kaczmarczyk, Małgorzata Syczewska","doi":"10.37190/abb-02610-2025-02","DOIUrl":"10.37190/abb-02610-2025-02","url":null,"abstract":"Purpose: Abnormalities in bone structure impact motor functions, including the ability to maintain stable posture. This study assessed static and dynamic balance in patients with osteogenesis imperfecta (OI) across different disease types, compared to a healthy population. Methods: The study group included 87 patients with OI: Type I (n = 45), Type III (n = 28), and Type IV (n = 14). Balance was assessed using the AMTI (Advanced Mechanical Technology, Inc.) platform. Measurements in standing (ST) position during anterior-posterior (AP) and medial-lateral (ML) tilts, with eyes open, for 30 seconds. Results: Significant differences in balance parameters under static conditions were found between OI types (61.5% between Types I and III, 38.5% between Types I and IV, and 30.7% between Types III and IV). Across all OI types, maintaining balance predominantly involved displacement of the COP (Centre of Pressure) in the sagittal plane, observed in 84.7% of Type II OI, 75.2% of Type III OI and 74.5% of Type IV OI cases. Under dynamic conditions, significant differences in balance parameters were noted in 84.6% of comparisons between Types I and III, 46.1% between Types I and IV, and 69.2% between Types III and IV. Conclusions: Balance assessment in individuals with OI is essential for injury prevention, improving mobility and daily function, and monitoring therapy effectiveness. Development of more preventive strategies aimed at reducing fracture risk and enhancing the quality of life for these patients. The relatively small number of patients with type III and the wide age range represent limitations of our study.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"27 1","pages":"181-190"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of energetic-anthropometric features on 50-m and 100-m freestyle kinematic indices in young male swimmers. 能量人体测量特征对青年男子50米和100米自由泳运动指标的影响。

Acta of bioengineering and biomechanics Pub Date : 2025-06-16 Print Date: 2025-03-01 DOI: 10.37190/abb-02559-2024-02

Łukasz Wądrzyk, Robert Staszkiewicz, Marek Strzała, Kamil Sokołowski, Magdalena Żegleń, Łukasz Kryst, Julia Badzińska

{"title":"Impact of energetic-anthropometric features on 50-m and 100-m freestyle kinematic indices in young male swimmers.","authors":"Łukasz Wądrzyk, Robert Staszkiewicz, Marek Strzała, Kamil Sokołowski, Magdalena Żegleń, Łukasz Kryst, Julia Badzińska","doi":"10.37190/abb-02559-2024-02","DOIUrl":"10.37190/abb-02559-2024-02","url":null,"abstract":"Purpose: The determinants of the sports results of young and adult swimmers differ, especially in sprint races (50-100 m). Their identification can be used to assess the athlete's potential and to set appropriate requirements. The aim was to distinguish energy-anthropometric profiles (clusters) among young athletes and to characterize their kinematic indices in freestyle sprint races (50-100 m). Kinematic variables from both distances were compared in each cluster. Methods: Anthropometric indices and mechanical power of the upper limbs (arm-cranking) were determined in 43 subjects (boys, aged 12-13 years), which were used for cluster analysis. For the 50- and 100-m races the following were determined: velocity (v), stroke rate (SR), stroke length (SL) and stroke index (SI). Comparative analysis was performed between clusters and between distances. Results: The following clusters were distinguished: Large (LSP), Medium (MSP) and Small Size and Power (SSP), which differed due to anthropometric and power indices. Intergroup differences (LSP, MSP and SSP, respectively) were revealed in v 50 (1.65, 1.55, 1.49 m/s), v 100 (1.52, 1.41, 1.34 m/s), SL100 (1.92, 1.77, 1.72 m), SI50 (2.92, 2.65, 2.54 m/s2), SI100 (2.91, 2.51, 2.31 m/s2). In all clusters differences were revealed between v 50 and v 100 and SR50 and SR100. Differences in SL50 and SL100 were noticed in LSP and MSP, while in SI50 and SI100 in MSP and SSP. Conclusions: The evaluation of the technique should consider the energy-anthropometric profile of the athlete. The swimming technique need to be modified depending on the distance - also in races perceived as sprints.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"27 1","pages":"157-167"},"PeriodicalIF":0.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144370044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0