Applied Bionics and Biomechanics最新文献

{"title":"Segmenting Based on UNETR Network and 3D Reconstruction of Interventricular Septal-Free Wall Structure.","authors":"Yupeng Han, Chao Han, ShengJun Ta, Rui Hu, JiaQi Yin, Xin'an Li, Liwen Liu","doi":"10.1155/abb/2610376","DOIUrl":"10.1155/abb/2610376","url":null,"abstract":"<p><p><b>Background:</b> Percutaneous intramuscular septal radiofrequency ablation (PIMSRA) provi des an innovative alternative to septal myectomy (SM) and alcohol septal ablation (ASA). The precise segmentation of the interventricular septal is of paramount importance for the successful execution of the PIMSRA procedure. The study is based on the feasibility of applying the neural network-based method of UNETR model to the automatic segmentation of ventricular septal free wall structure in cardiac CT images of patients with HOCM and the three-dimensional reconstruction method based on visualization toolkit (VTK). <b>Materials and Methods:</b> The MedSAM-2, UNET and UNETR models were used to automatically segment the interventricular septal wall structure from 700 cardiac CT images of 23 patients. The image annotation tool was Labelme software, and the ratio of training set, test set, as well as validation set was 6:2:2. The higher Dice coefficient of the segmentation model was chosen to address the images, and the segmentation results were uesd to reconstruct in 3D with the metod of moving cubes. <b>Results:</b> Via training the UNETR segmentation model, when the parameter of batch and epoch were 8 and 32, respectively, the Dice coefficient of the interventricular septal-free wall structure test set is 0.89, which is higher than the Dice coefficient of 0.81 of the UNET model and 0.83 of the MedSAM-2 model. The model of UNETR was chosen to achieve the better segmentation results, and VTK three-dimensional reconstruction was performed based on the better segmentation results which is more closer to the real structure of heart. <b>Conclusion:</b> The results show that the segmentation method is feasible, and the three-dimensional reconstruction of the interventricular septal free wall structure by VTK based on the segmentation results is also feasible.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"2610376"},"PeriodicalIF":0.6,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12370385/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144939975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biomechanical Effects of Sandal Strap Design on Gait Kinematics and Electromyographic Activation Patterns: A Speed-Dependent Analysis.","authors":"Bojie Xuan, Dong Sun, Dongxu Wang, Diwei Chen, Fengping Li, Yang Song, Xuanzhen Cen, Gusztáv Fekete, Monèm Jemni, Yaodong Gu","doi":"10.1155/abb/8802614","DOIUrl":"10.1155/abb/8802614","url":null,"abstract":"<p><p><b>Background:</b> Sandals are widely favored for their comfort; however, their open design may reduce foot support and compromise gait stability. <b>Objective:</b> This study examined the effects of various sandal strap configurations and walking speeds on spatiotemporal gait parameters and the integrated electromyographic (iEMG) activity of lower limb muscles. <b>Methods:</b> Twenty-four healthy adult males (age: 25.00 ± 1.22 years; mass: 71.50 ± 11.84 kg; height: 173.50 ± 3.50 cm) participated in this study. A two-way repeated-measures ANOVA was performed to assess the effects of three footwear conditions (barefoot, Crocs strapped, and Crocs strapless) across three walking speeds (1.2, 1.6, and 2.0 m/s). Gait outcomes included step length, step width, step frequency, peak plantar loading duration, and iEMG activity of key lower limb muscles: gluteus maximus (GM), rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA), and lateral gastrocnemius (LG). <b>Results:</b> Footwear condition significantly affected step width (<i>p</i> < 0.05) and step frequency (<i>p</i> < 0.001). A significant interaction between footwear and walking speed was observed for peak plantar loading duration in both the forefoot and heel regions (<i>p</i> < 0.05). Additionally, significant differences in RF and GM iEMG activity were found between barefoot and strapped conditions (<i>p</i> < 0.05). <b>Conclusions:</b> Strapped sandals improve plantar load distribution and gait stability by regulating step frequency and reducing lower limb muscle activation, with these effects being more pronounced at higher walking speeds, particularly during forefoot and heel loading phases.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"8802614"},"PeriodicalIF":0.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12352981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144871081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation on Method of Measuring the Knee Joint Force Sense and Application in Patients With Knee Osteoarthritis.","authors":"Zhixin Jin, Jingnan Shi, Haohua Zhang, Xinglong Zhou, Kuan Zhang, Songhua Yan","doi":"10.1155/abb/8851877","DOIUrl":"10.1155/abb/8851877","url":null,"abstract":"<p><p><b>Background:</b> Force sense reflects the efferent activity capacity of proprioception. Currently, methods for measuring force sense in the knee joint is lack. This study aims to validate a constructed test system and to explore the characteristics of force sense in patients with knee osteoarthritis (KOA). <b>Methods:</b> Seventy-five subjects were recruited: 30 for verifying the reliability of test system and exploring the impact of body mass index (BMI) and the striking force on force sense; 20 healthy adults and 25 KOA patients for the method application. The force sense test system comprised a self-designed force application apparatus and a wireless surface electromyography (sEMG) device (DELSYS Inc, USA). The reflex contraction latency of muscles was considered as the force sense. The intraclass correlation coefficient (ICC) was used to verify the reliability. <b>Results:</b> The reflex contraction latencies of biceps femoris (BF) was the shortest and ICC in the two tests is 0.950 (<i>p</i> < 0.001). No significant differences in force sense were found between different BMI groups (<i>p</i>=0.065), and there was no notable interaction between BMI and striking force (<i>p</i>=0.283). A significant difference in force sense was observed between different striking forces (<i>p</i> < 0.001). There were no significant differences in force sense of bilateral sides between healthy people and KOA patients (<i>p</i>=0.126, <i>p</i>=0.315). <b>Conclusion:</b> The force sense testing method established in this study is applicable for measuring knee joint force sense. BMI did not affect knee joint force sense but striking force did, and subjects with different BMI chose the same striking force; KOA did not influence the force sense of knee joint.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"8851877"},"PeriodicalIF":1.8,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12245506/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamic Modeling and Simulation Analysis of an Arm Rehabilitation Robot With Mobile Platform.","authors":"Tao Gong, Yuanyuan Lin, Yufeng Wang, Wenbin Wang, Wei Chen, Jiancheng Charles Ji","doi":"10.1155/abb/8254911","DOIUrl":"10.1155/abb/8254911","url":null,"abstract":"<p><p>In response to the ever-increasing demand of upper limb rehabilitation training and function improvement, a novel arm rehabilitation robot with mobile platform, which can move on the table, is designed to facilitate the upper limbs strength training via the passive force field. The proposed robot provides three passive degrees of freedom (plane motion on the table and rotation around the vertical axis), which can fulfill the robot-aided trajectory training for upper limbs, such as shoulder, elbow, and wrist flexion/extension. Meanwhile, changed force field was established on the table via three elastic ropes. The user first connects the robot by the grab handle and arm support, then the screen displays the reference trajectory (RT) and notifies the user to manipulate the robot to draw the trajectory, the actual trajectory is calculated via the sensors and displayed to feed the user to adjust the muscular strength. In this paper, the reference trajectories, corresponding angular velocity of the wheels and the distribution of force field are analyzed via the dynamic modeling. Simulation studies are carried out to analyze the effectiveness of the theoretical model, kinematic performance, and distribution of force field. The path tracking simulation results showed that the peak error was 1.2 mm for the \"∞\" curve and 0.9 mm for the \"O\" curve. The force analysis results showed that the robot can generate the circinate force field and the maximum force of the whole workspace was 9.8 N with the elastic rigidity was 20 N/m. Furthermore, the maximum force was 11.02 N and the minimum force was 6.48 N when the robot moved along the of the circular path. These results demonstrate that the robot can generate appropriate force field to facilitate the motor training and paved the way to interventional therapy of the robot in the future. We will optimize the structure parameters and assemble a prototype to test the performance of the robot.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"8254911"},"PeriodicalIF":1.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12133355/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144214741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Plantar Biomechanic Characteristics After High-Intensity Exercise in Young Runners With High-Arched Feet.","authors":"Xindong Tao, Weiyi Lao, Yaoyao Zhong, Jihui Wang, Wei Ouyang","doi":"10.1155/abb/7834542","DOIUrl":"10.1155/abb/7834542","url":null,"abstract":"<p><p><b>Objective:</b> This study aimed to evaluate the plantar biomechanics in high-arched (HA) young runners after they performed a high-intensity (HI) ergometer exercise. <b>Methods:</b> Eighteen collegiate runners with HA feet (age = 19.9 ± 0.6 years, height = 179.4 ± 3.5 cm, weight = 69.3 ± 4.9 kg, arch height index [AHI] = 0.43 ± 0.04) were tested. The participants performed a 5-min HI ergometer exercise. Besides measuring heart rate (HR), blood pressure (BP), and ratings of perceived exertion (RPE), the plantar biomechanic features were assessed before and after exercise. <b>Results:</b> Postexercise, the participants exhibited a fatigue index (FI) of 87.6% ± 7.9%. The mean HR (HR_mean) corresponded to 81.1% ± 5.4% of maximum HR (HR_max). Notably, there was a significant drop (<i>p</i> < 0.001) in systolic BP (SBP) and diastolic BP (DBP) at the 10-min postexercise. The average RPE index was 17.3 ± 1.3. Specifically, the contact area of the hallux (T1) significantly increased (<i>p</i> < 0.05), while the contact area of toes 2-5 (T2-5) and the 5th metatarsal (M5) significantly decreased (<i>p</i> < 0.05). Plantar pressure significantly increased in T1 (<i>p</i> < 0.05), but significantly decreased in M5 and T2-5 (<i>p</i> < 0.05). The force-time integral (FTI) in the forefoot and vertical ground reaction force (VGRF) during heel fully struck and forefoot push off elevated, while the foot progression angle (FPA) significantly increased (<i>p</i> < 0.01). <b>Conclusions:</b> Our findings indicate that HI ergometer exercise has significant impacts on the biomechanic features of HA young runners. Specifically, we observed modifications in plantar area and pressure, FTI, and VGRF, especially in the medial arch and combined with outward rotation of the feet. These results can offer insights to inform future investigations on gait training interventions aimed at reducing the risk of lower extremity injuries in HA young runners.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"7834542"},"PeriodicalIF":1.8,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12116207/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144155889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Network Pharmacology Study on the Mechanisms of <i>Panax Notoginseng</i> in the Treatment of Diabetic Retinopathy and Cataract.","authors":"Ting Zhang, Guangquan Ji, Tianpu Feng, Xi Lin, Lei Wang, Yi Xu, Pan Shi, Wenxue Liang","doi":"10.1155/abb/6687606","DOIUrl":"10.1155/abb/6687606","url":null,"abstract":"<p><p><b>Background:</b> Diabetic retinopathy (DR) and diabetic cataract (DC) are two closely related microvascular complications of diabetes. <i>Panax notoginseng</i>, a plant from the Araliaceae family and genus Panax, is widely used in traditional Chinese medicine (TCM) due to its antioxidant, anti-inflammatory, and blood circulation-promoting properties. Recent studies suggest that drugs possessing anti-inflammatory, antioxidant, and blood circulation-promoting characteristics may have unexpected benefits in treating diabetic microvascular complications. This study employs network pharmacology to investigate the mechanisms by which <i>P. notoginseng</i> can treat DR and DC as comorbidities. <b>Objective:</b> The study aims to explore the active components and biological mechanisms of <i>P. notoginseng</i> in treating these comorbidities using network pharmacology and molecular docking. <b>Methods:</b> Components of <i>P. notoginseng</i> were identified through literature reviews and database queries. Active components were selected based on drug-like principles, and their targets were predicted using the principle of similarity. Disease-related genes were collected from OMIM and GeneCards and scored. Venn analysis identified target nodes, followed by protein-protein interaction (PPI) network analysis, gene ontology (GO) analysis, and KEGG pathway analysis. Topological algorithms analyzed the PPI network, and key nodes combined with other analysis results were utilized to construct a <i>P. notoginseng</i>-active component-gene-phenotype network using Cytoscape 3.9.1. Molecular docking on key genes, integrated with biological background, determined potential therapeutic targets against the diseases. <b>Results:</b> <i>P. notoginseng</i> contains eight active components and 234 potential gene targets. Network analysis showed that <i>P. notoginseng</i> can repair microvascular damage by influencing disease-related signaling pathways. Molecular docking indicated that four key targets (SRC, JAK2, IGF1R, and EGFR) effectively bind to the active components of <i>P. notoginseng</i>. <b>Conclusion:</b> These findings provide insights into the molecular-level action of <i>P. notoginseng</i> against these diseases. Overall, this study enhances our understanding of the potential of <i>P. notoginseng</i> in treating DR and DC as comorbidities and establishes a foundation for further research.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"6687606"},"PeriodicalIF":1.8,"publicationDate":"2025-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12086034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantitative Analysis of Spatial Distribution of Medial Fracture Lines in Intertrochanteric Fractures.","authors":"Miaotian Tang, Hao Zhou, Gaoxiang Xu, Dake Tong, Cheng Xu, Jiantao Li","doi":"10.1155/abb/6959877","DOIUrl":"https://doi.org/10.1155/abb/6959877","url":null,"abstract":"<p><p>The integrity of the medial wall of the proximal femur is crucial for maintaining mechanical homeostasis. However, the impact of intertrochanteric fractures on the medial wall and the optimal diagnostic methodology remain unclear. We retrospectively analyzed CT data from 205 patients with intertrochanteric fractures. The lowest point of the medial fracture line was marked, and a standard coordinate system was established to record its spatial position. The association between AO, Evans, or Tang classification and different types of medial wall disruption was analyzed using Spearman correlation. The lowest point of the fracture line was located in the first quadrant of the proximal medial wall in 20 patients, with spatial coordinates of (6.44 ± 5.47, 6.14 ± 2.71). In 21 patients, it was in the second quadrant, with coordinates of (-7.23 ± 5.86, 8.31 ± 6.59). In 122 patients, it was in the third quadrant, with coordinates of (-9.59 ± 4.32, -24.43 ± 15.79), and in 42 patients, it was in the fourth quadrant, with coordinates of (8.18 ± 4.56, -18.20 ± 12.92). The Tang classification showed a stronger correlation with fracture instability (<i>r</i> = 0.40, <i>p</i>  < 0.001) compared to the AO (<i>r</i> = 0.32, <i>p</i>  < 0.001) and Evans (<i>r</i> = 0.38, <i>p</i>  < 0.001) classifications. The medial wall of the proximal femur is significantly compromised in intertrochanteric fractures, with varying mechanical stability depending on the fracture type. The Tang classification effectively differentiates these stability differences, providing valuable guidance for clinical practice.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"6959877"},"PeriodicalIF":1.8,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12006714/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Soret Effect and Chemical Process on MHD Oscillatory Flow in a Physiological Fluid.","authors":"R Kavitha, Nyagong Santino David Ladu, S Ravi","doi":"10.1155/abb/8818822","DOIUrl":"https://doi.org/10.1155/abb/8818822","url":null,"abstract":"<p><p>This paper investigates the impact of chemical and Soret reactions on magnetohydrodynamic (MHD) oscillatory flow in a porous arteriole. Using appropriate mathematical techniques, a model of a mathematical equation is developed and solved. The flow governing equations are formulated based on certain assumptions. Exact solutions are attained for the profiles of velocity, temperature, and concentration. To highlight the key features, the numerical computations of the physical parameters, Grashof number, Reynolds number, Magnetic number, and Soret number were presented graphically. The present study reveals the viscoelasticity of blood significantly reduces flow velocity. And also illustrates blood flow (BF) in the artery is affected by the Lorentz force, which causes the velocity of the BF to increase as the magnetic field parameter values increase. The obtained outcome may be very useful in controlling BF during the surgical procedure.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"8818822"},"PeriodicalIF":1.8,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11991759/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143961427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Snake-Like Robot Workspace Solving Method Based on Improved Monte Carlo Method.","authors":"ZhiYong Yang, Wang Tian, HaoYang Wang, Xu Liu, DaoDe Zhang, Yu Yan, ShaoSheng Fan","doi":"10.1155/abb/6125695","DOIUrl":"https://doi.org/10.1155/abb/6125695","url":null,"abstract":"<p><p>The method is applicable for solving the obstacle avoidance workspace of a snake-like robot working on high-voltage transmission cables, based on an improved Monte Carlo method, to address the issues of uneven distribution of scattered points, difficulty in extracting point cloud boundaries, and insufficient accuracy in traditional Monte Carlo methods. The proposed method first generates a seed workspace for the snake-like robot using traditional Monte Carlo method and then envelops the seed workspace with a cube and divides it into several smaller cubes that contain points in the workspace equally. Next, Gaussian distribution probability density function is used to extend and sample the seed workspace of the robot, generating the workspace of the snake-like robot. Finally, the <i>α</i> - shape algorithm is used to extract the point cloud boundaries of the snake-like robot workspace and calculate its volume, accurately determining the workspace. Simulation experiments comparing the reconstructed surface obtained from the <i>α</i> - shape algorithm with the point cloud of the snake-like robot workspace show high accuracy.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"6125695"},"PeriodicalIF":1.8,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11991773/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143961607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Extension Arm Design Method Based on a Two-Bar Tension Stretchable Mechanism.","authors":"Song Gao, GuoFu Zhang, Yue Zhao, XiaoHui Yu, JianWei Sun","doi":"10.1155/abb/3313533","DOIUrl":"https://doi.org/10.1155/abb/3313533","url":null,"abstract":"<p><p>The deployable and foldable structure is a unique structural system that provides convenience in terms of transportation and expansion. Although the current deployable mast can transition between closed and extended structures, it lacks stability during movement and does not have the ability to recover on its own after contracting. Hence, improving the stability of deployable mechanisms while enabling them to self-restore has become an essential area for development. Spatial deployable mast expansion and contraction properties are essential for aerospace. In this paper, based on a two-bar and four-cable tensegrity structure, the research was conducted. A new spatially deployable mast structure with zero Poisson's ratio and self-stability, as well as self-adaptability, is proposed. In comparison to existing space deployable masts, the new deployable masts incorporate a tensegrity structure feature that enables them to recover autonomously to their initial state in a contracted state. Firstly, an innovative design based on a two-bar, four-cord tensegrity structure is conducted, which evolves into a two-bar and four-cable tensegrity structure with zero Poisson's ratio by increasing the longitudinal axis to restrict the structure's degrees of freedom and combines with the force density method to analyze the stability of the structure and derive the optimal dimensional parameters. The positive definiteness of the stiffness matrix <i>Q</i> (<i>K</i>) demonstrates the exceptional stability of the mechanism. Secondly, the load-bearing characteristics of the mechanism were verified utilizing ABAQUS (DS, France) software. Besides, the minimum compressive stiffness of the new space deployable mast for locking three rails compared to locking one rail is 12 × 10⁸ N/m, as derived from ABAQUS (DS, France) analysis. Ultimately, a prototype was developed through the application of three-dimensional (3D) printing technology. The force-strain experiment was conducted using both a pressure testing machine and a universal testing machine, and the resulting images demonstrated the findings. The experimental results demonstrate that the novel deployable mast structure has self-recovering and self-stabilizing capabilities. This research pushes the frontiers of deployable mast multifunctionality as well as significantly expands the application domain of tensegrity structures to the aerospace sector.</p>","PeriodicalId":8029,"journal":{"name":"Applied Bionics and Biomechanics","volume":"2025 ","pages":"3313533"},"PeriodicalIF":1.8,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11871976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143539798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}