Acta of bioengineering and biomechanics最新文献_第5页

Antibacterial properties of elastomers modified with chitosan. 壳聚糖改性弹性体的抗菌性能。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02444-2024-02

Katarzyna Rucińska, Ewa Osuchowska, Cezary Dębek, Małgorzata Krok-Borkowicz, Elżbieta Pamuła

{"title":"Antibacterial properties of elastomers modified with chitosan.","authors":"Katarzyna Rucińska, Ewa Osuchowska, Cezary Dębek, Małgorzata Krok-Borkowicz, Elżbieta Pamuła","doi":"10.37190/abb-02444-2024-02","DOIUrl":"10.37190/abb-02444-2024-02","url":null,"abstract":"Bacterial infections pose a serious threat to human health. For many years, there has been a search for materials that would inhibit their development. It was decided to take a closer look at various elastomeric materials with the addition of chitosan. Mixtures based on silicone, silicone with a platinum catalyst, acrylonitrile-butadiene rubber, natural rubber, and ethylene-propylene-diene rubber were developed and tested for antibacterial and physico-mechanical properties. The dispersion of chitosan in the elastomer was also investigated using a scanning electron microscope. Of the tested mixtures, three were selected, characterised by the best antibacterial and physico-mechanical properties and a very good dispersion of chitosan in the matrix. The mixtures were based on silicone, silicone with a platinum catalyst and natural rubber. Tests were performed to measure the release of compounds into water for these mixtures. Furthermore, cytotoxicity with L929 cells and cytocompatibility in direct contact with MG63 cells were investigated for silicone samples. The results showed that these materials were not toxic to mammalian cells and supported their growth. The best bactericidal properties against E. coli and S. aureus strains compared to the other tested materials (>99.0-99.9% of killed bacteria) were shown by samples made of silicone and silicone with a platinum catalyst and added chitosan. At the same time, the best physico-mechanical properties were found for the samples with chitosan based on silicone with added platinum and natural rubber. Developed materials appeared to be good candidates for manufacturing medical equipment on which the adhesion and growth of bacteria should be prevented.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"13-23"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061951","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

Assessing the effect of chest orientation on pulmonary pressure under free field shock waves: a numerical analysis. 评估胸廓朝向对自由场冲击波下肺压力的影响：数值分析。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02427-2024-04

Zhuangqing Fan, Shuangbo Zhang, Huifang Gan, Jing Chen, Changkai Dai, Benwen Zhang, Fangyun Lu, Jinlong Qiu, Jianyi Kang

{"title":"Assessing the effect of chest orientation on pulmonary pressure under free field shock waves: a numerical analysis.","authors":"Zhuangqing Fan, Shuangbo Zhang, Huifang Gan, Jing Chen, Changkai Dai, Benwen Zhang, Fangyun Lu, Jinlong Qiu, Jianyi Kang","doi":"10.37190/abb-02427-2024-04","DOIUrl":"10.37190/abb-02427-2024-04","url":null,"abstract":"Purpose: This study explores how thoracic orientation affects lung pressure and injury outcomes from shock waves, building on earlier research that suggested human posture impacts injury severity. Methods: A layered finite element model of the chest was constructed based on the Chinese Visual Human Dataset (CVH), including the rib and intercostal muscle layers. The dynamic response of the chest under 12 different angle-oriented shock waves under incident pressures of 200 kPa and 500 kPa was calculated. The correspondence between lung pressure at various angles, chest wall motion velocity and lung stress, and differences in pressure/stress of lung tissue behind ribs and intercostal muscle were analyzed. Results: The dynamic response of the chest can be roughly divided into four processes. High local intrapulmonary pressure areas were primarily in the anterior lobe margin and the lung's central region. A 500 kPa incident wave at 0° could cause slight lung injury, whereas at 240°, the pressure was non-harmful. Lung tissue pressure and stress induced by chest wall movement were significantly higher behind the intercostal muscles than behind the ribs, with a difference of about 2-3 times. Conclusions: This layered model provides a cost-effective tool for large-scale shock wave impact simulations on the chest. Chest wall movement velocity strongly correlates with lung stress distribution. The significant density and sound velocity differences among ribs, intercostal muscles and lungs cause an acoustic impedance mismatch, leading to \"striped bleeding\" marks in post-impact lungs. This research enhances understanding of chest and lung injury mechanisms and informs the development of protective measures.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"45-58"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061952","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

Kinematic synergy of speed reduction during stair descent. 楼梯下降过程中速度降低的运动学协同作用。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02493-2024-02

Jun Nakamura, Reo Igura, Masaya Anan

{"title":"Kinematic synergy of speed reduction during stair descent.","authors":"Jun Nakamura, Reo Igura, Masaya Anan","doi":"10.37190/abb-02493-2024-02","DOIUrl":"10.37190/abb-02493-2024-02","url":null,"abstract":"Purpose: This study aimed to quantify multi-segmental coordination using Uncontrolled Manifold (UCM) analysis to examine the effect of speed reduction on the control of stair descent. Methods: Twenty healthy participants performed stair descent at a self-comfortable pace for normal speed conditions and at a slow speed set to a metronome rhythm of 60 beats/min. UCM analysis was separately conducted for the center of mass (COM) and swing foot, with anteroposterior and vertical movements designated as task variables, and segment angles defined as elemental variables. ΔV, the normalized difference between the variance in segment angle that does not affect task performance (VUCM) and the variance that does affect task performance (VORT) was calculated separately for the COM and swing foot and compared between normal and slow speeds. Results: The VORT for the COM and the swing foot in the anteroposterior direction were significantly lower at slow speeds than at normal speeds. The VORT of task-relevant segment angles affecting COM control in the vertical direction was significantly higher at slow speed compared to normal speed. Additionally, the ΔV in segment angle variance impacting swing foot control in the anteroposterior direction was significantly greater at slow speed than at normal speed. Conclusions: The findings suggest that descending stairs at reduced speed promotes enhanced coordination of lower limb segments for controlling the swing foot in the anteroposterior direction, while concurrently increasing segmental variability that destabilizes the vertical COM.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"153-158"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061959","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

Comparative analysis of spinal flexion angles during smartphone use in toilet: a randomized cross-over with three-period study. 在厕所使用智能手机时脊柱屈曲角度的比较分析：一项随机交叉的三期研究。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02411-2024-03

Ziyi Luo, Baojian Li, Ying Liu, Lu Liu, Yang Li, Gang Liu

{"title":"Comparative analysis of spinal flexion angles during smartphone use in toilet: a randomized cross-over with three-period study.","authors":"Ziyi Luo, Baojian Li, Ying Liu, Lu Liu, Yang Li, Gang Liu","doi":"10.37190/abb-02411-2024-03","DOIUrl":"10.37190/abb-02411-2024-03","url":null,"abstract":"Purpose: The purpose of this study was to quantify the impact of smartphone use while sitting on the toilet on the spinal flexion angles and the time effect. Methods: Measurements of the spinal flexion angles in the sagittal plane were made by thirty participants while they sat on the toilet for 10 min, using a smartphone in either one, both, or neither hand. The individual's forehead, cervical, thoracic and lumbar spinal areas were each fitted with five different inertial motion sensors. SPSS 26.0 software was used to statistically evaluate all of the data. Results: People who used smartphones with both hands had considerably larger (P < 0.05) cervical and spinal flexion angles than those who did not. A statistically significant (P < 0.001) association was observed by regression analysis between time and spinal flexion angle (r = 0.747 for no smartphone, r = 0.793 for a smartphone used in one hand and r = 0.855 for a smartphone used in both hands). Consequently, when using the smartphone with both hands, the flexion angle of the spine entered a more stable state of angles. Conclusions: The results showed that the cervical region's flexion angles change when using a smartphone while sitting on the toilet. Even when not using a smartphone, the flexion angle of the spine when sitting on the toilet will progressively increase.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"73-79"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061953","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 biomechanical implications of lacunar and perilacunar microarchitecture on microdamage accumulation in cortical bone. 腔隙和腔周围微结构对骨皮质微损伤积累的生物力学意义。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02415-2024-03

Xiuyan Yang, Xichen Chen, Chunhui Ji, Liang Zhang, Chuanbin Yan, Bin Lin, Juan Du, Zhen Wang

{"title":"The biomechanical implications of lacunar and perilacunar microarchitecture on microdamage accumulation in cortical bone.","authors":"Xiuyan Yang, Xichen Chen, Chunhui Ji, Liang Zhang, Chuanbin Yan, Bin Lin, Juan Du, Zhen Wang","doi":"10.37190/abb-02415-2024-03","DOIUrl":"10.37190/abb-02415-2024-03","url":null,"abstract":"Purpose: This study aimed to explore how the microarchitectural features of lacunae and perilacunar zones impact the biomechanics of microdamage accumulation in cortical bone, crucial for understanding bone disorders' pathogenesis and developing preventive measures. Methods: Utilizing the phase field finite element method, the study analyzed three bone unit models with varying microarchitecture: one without lacunae, one with lacunae and one including perilacunar zones, to assess their effects on cortical bone's biomechanical properties. Results: The presence of lacunae was found to increase microcrack initiation risk, acting as nucleation points and accelerating microcrack propagation. Proximity to Haversian canals exacerbated stress concentration, speeding microdamage progression. Conversely, perilacunar zones mitigated both initiation and propagation. An elevated critical energy release rate correlated with slower crack growth and reduced damage severity. Conclusions: The research sheds light on the intricate mechanisms governing microcrack behavior in compact bone, highlighting the significant role of bone's microarchitectural features in its biomechanical response to microdamage. These insights are valuable for the development of strategies to prevent and treat bone-related disorders.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"59-71"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061649","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 impact of external perturbations on postural control. 外部扰动对体位控制的影响。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02422-2024-02

Justyna Kędziorek, Michalina Błażkiewicz

{"title":"The impact of external perturbations on postural control.","authors":"Justyna Kędziorek, Michalina Błażkiewicz","doi":"10.37190/abb-02422-2024-02","DOIUrl":"10.37190/abb-02422-2024-02","url":null,"abstract":"Purpose: External factors can disrupt postural control, but the intricate workings of the postural control system enable an appropriate response. This study seeks to assess how external perturbations affect postural control. Methods: Twenty women participated in study, which consisted four trials involved quiet standing and experiencing induced perturbations by being struck with a boxing bag from the back, right, and left sides, respectively. The center of pressure (CoP) path length was recorded for each of the mentioned trials. Sample Entropy (SampEn), Lyapunov Exponent (LyE), and Fractal Dimension (FD) were computed for the CoP time series, separately for the anterior-posterior (AP) and mediolateral (ML) directions. The nonparametric Friedman ANOVA with Dunn-Bonferroni post-hoc analysis was employed to investigate the influence of external perturbations on both linear and nonlinear parameters on postural control. Results: The post-hoc analysis showed for LyE_AP_quiet (1.02 ± 0.18) significantly higher values than for LyE_AP_right (0.92 ± 0.22) and significantly higher for LyE_AP_left. Lyapunov Exponent was the parameter that differentiated the most between samples. Conclusions: The greatest number of significant differences between samples were demonstrated by the Lyapunov Exponent. This nonlinear parameter should be used to evaluate various perturbations during upright position in healthy subjects.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"3-11"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061673","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

Distribution of foot load in a group of people with femoroacetabular impingement recreationally practising long-distance running. 股骨髋臼撞击患者休闲长跑时足部负荷的分布。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02465-2024-02

Wiesław Chwała, Robert Walaszek, Katarzyna Burdacka, Marcin Burdacki

{"title":"Distribution of foot load in a group of people with femoroacetabular impingement recreationally practising long-distance running.","authors":"Wiesław Chwała, Robert Walaszek, Katarzyna Burdacka, Marcin Burdacki","doi":"10.37190/abb-02465-2024-02","DOIUrl":"10.37190/abb-02465-2024-02","url":null,"abstract":"Purpose: The aim of this work was to assess the effect of a conservative therapeutic intervention on the changes in the foot load distribution in people with femoroacetabular impingement (FAI) syndrome practising long-distance running. Methods: The study involved 44 men, aged 30 to 50 years, practising long-distance running. Two rounds of tests were conducted in the Laboratory of Biokinetics of the AWF in Kraków. The first measurements were carried out in January 2020, and the second ones - after a 6-month therapeutic intervention in July 2020. The measurements of the distribution of foot pressure on the ground in static conditions and during barefoot running were performed with the use of the FOOTSCAN 7.111 podobarographic platform. Parameters showing the distribution of pressure in the individual foot areas and the trajectory of force distribution during the contact of feet with the ground were measured. Results: After the completion of the physiotherapy protocol, the FAI group differed significantly from the n-FAI group in relation to the Max F range in the areas of the first, fourth and fifth metatarsal bones, and as far as the impulse in the areas of the first, fourth, and fifth metatarsal bones and in the big toe area. Conclusions: A comparison of the results of the first and second run of tests showed more positive changes in the FAI group than in the n-FAI group. This demonstrates a favourable effect of the conservative physiotherapy protocol in people with FAI - it can be an effective alternative to the surgical treatment.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"125-133"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061954","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

Does the Chêneau brace affect gait pattern and body balance of adolescents with idiopathic scoliosis? Chêneau支具是否影响青少年特发性脊柱侧凸的步态模式和身体平衡？

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02442-2024-02

Mariusz Drużbicki, Anna Puchalska-Sarna, Olga Wolińska, Magdalena Szczepanik, Joanna Majewska

{"title":"Does the Chêneau brace affect gait pattern and body balance of adolescents with idiopathic scoliosis?","authors":"Mariusz Drużbicki, Anna Puchalska-Sarna, Olga Wolińska, Magdalena Szczepanik, Joanna Majewska","doi":"10.37190/abb-02442-2024-02","DOIUrl":"10.37190/abb-02442-2024-02","url":null,"abstract":"Purpose: This study evaluated changes in selected spatiotemporal and kinematic gait parameters and balance in girls with Adolescent idiopathic scoliosis (AIS) with and without the Chêneau brace. Methods: 15 subjects with scoliosis wearing the Chêneau brace and an equal comparative control group underwent objective gait analysis with the 3D BTS motion caption system. Balance assessment was done with the Kistler platform. The analysis was performed at comparison of gait and balance parameters in patients with scoliosis in two conditions: with and without the Chêneau brace during the study. Results: Statistically significant differences occurred in many spatiotemporal and kinematic parameters both for the AIS group with and without the Chêneau brace and in the AIS group with and without the Chêneau brace as compared to the control group. When comparing adolescents with AIS with and without the Chêneau brace, statistically significant differences were noted in the COP-X amplitude and in the path length in trials with closed eyes. Compared to the control group the following differences were statistically significant: the value of the COP-Y amplitude during the trial with closed eyes, both with and without the Chêneau brace, and the Equivalent area of the COP during the trial with closed eyes with the Chêneau brace. Conclusions: The Chêneau brace in patients with juvenile idiopathic scoliosis affects the level of selected balance and gait parameters.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"81-91"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061955","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 effect of using walking poles on the spatiotemporal gait parameters in patients who underwent surgery for hip fractures. 使用步行杆对髋部骨折手术患者时空步态参数的影响。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02450-2024-02

Koji Ono, Yu Inoue, Ryo Yamasaki, Shigeharu Tanaka, Ryo Tanaka

{"title":"The effect of using walking poles on the spatiotemporal gait parameters in patients who underwent surgery for hip fractures.","authors":"Koji Ono, Yu Inoue, Ryo Yamasaki, Shigeharu Tanaka, Ryo Tanaka","doi":"10.37190/abb-02450-2024-02","DOIUrl":"10.37190/abb-02450-2024-02","url":null,"abstract":"Purpose: This study aimed to investigate the differences in spatiotemporal gait parameters in patients who underwent surgery for hip fractures when using walking poles and T-canes. Methods: This cross-sectional study enrolled eight patients who underwent surgery for a unilateral hip fracture (mean age of 79.0 ± 7.9 years) and 34 healthy individuals who had no symptoms (mean age of 32.1 ± 6.2 years). The outcome measures were the walking speed, trunk acceleration, and lateral lean angles of the trunk, shoulder and pelvis during walking. The results were compared among the three types of walking aids, namely, a T-cane, double T-canes and walking poles. Results: Acceleration indices step symmetry in the vertical and anteroposterior directions in walking with walking poles were significantly larger than that in walking with a T-cane. These results were common in patients with fractures and healthy individuals. Conclusions: Walking with walking poles might be a more symmetrical gait style than walking with a T-cane in patients who underwent surgery for hip fractures.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"115-123"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061653","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 impact of running experience and shoe longitudinal bending stiffness on lower extremity biomechanics: a cross-sectional study. 跑步经验和鞋纵向弯曲刚度对下肢生物力学的影响：一项横断面研究。

Acta of bioengineering and biomechanics Pub Date : 2025-01-28 Print Date: 2024-06-01 DOI: 10.37190/abb-02461-2024-03

Shunxiang Gao, Yang Song, Dong Sun, Zhiyi Zheng, Hairong Chen, Qiaolin Zhang, Yining Xu, Yaodong Gu

{"title":"The impact of running experience and shoe longitudinal bending stiffness on lower extremity biomechanics: a cross-sectional study.","authors":"Shunxiang Gao, Yang Song, Dong Sun, Zhiyi Zheng, Hairong Chen, Qiaolin Zhang, Yining Xu, Yaodong Gu","doi":"10.37190/abb-02461-2024-03","DOIUrl":"10.37190/abb-02461-2024-03","url":null,"abstract":"Purpose: The impact of shoe stiffness on running biomechanics is well-documented, while the specific effect on the performance of biomechanically distinct groups such as novice runners and experienced runners is still largely unexplored. The study aimed to evaluate the biomechanical effect of different shoe longitudinal bending stiffness on the lower limb during running in novice runners and experienced runners. Methods: Twelve experienced runners and ten novice runners ran at a speed of 4.47 m/s while randomly wearing shoes with either low stiffness (5.9 Nm/rad) or high stiffness (8.6 Nm/rad). An Opensim musculoskeletal model was adopted for estimating lower limb joint angles, joint angular velocities, joint moment, joint work, peak joint reaction forces during running stance phase. Results: Results showed that novice runners displayed greater lower limb joint angles and less joint moment, while experienced runners exhibited reduced joint angles but greater joint moment, and higher peak joint reaction forces were observed at the knee and ankle joints. Furthermore, increased shoe longitudinal bending stiffness resulted in higher peak joint reaction forces at the metatarsophalangeal joint for novice runners while lower for experienced runners. Conclusions: Novice runners exhibit greater lower limb joint angles and reduced joint moments compared to experienced runners. Increased longitudinal bending stiffness results in higher peak joint reaction forces at the metatarsophalangeal joint for novice runners, while experienced runners show reduced forces under the same conditions. This nuanced understanding of joint dynamics underscores the need for tailored training and footwear recommendations specific to different levels of running experience.","PeriodicalId":519996,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 2","pages":"93-103"},"PeriodicalIF":0.0,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061707","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