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

Effect of foot strike patterns and cutting angles on knee kinematics and kinetics during side-cutting maneuvers. 在侧切动作中，脚的击球模式和切入角度对膝关节运动学和动力学的影响。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Wenxing Zhou, Yujie Qi, Mengjun Liu, Chengpang Hsiao, Lin Wang

{"title":"Effect of foot strike patterns and cutting angles on knee kinematics and kinetics during side-cutting maneuvers.","authors":"Wenxing Zhou, Yujie Qi, Mengjun Liu, Chengpang Hsiao, Lin Wang","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Cutting maneuvers are important actions in multidirectional sports but associated with noncontact anterior cruciate ligament (ACL) injuries. This study aimed to investigate the effect of different foot strike patterns and cutting angles on knee kinematics and kinetics.Methods: Twenty healthy male team sports athletes performed cuts with maximum speed at three angles (45, 90 and 135°) with different foot strike patterns (rearfoot strike [RFS] and forefoot strike [FFS]). A three-dimensional motion capture system combined with a force plate was used to collect makers trajectory and ground reaction force (GRF). Vertical GRF, and knee joint angles and moments were compared among these cutting tasks.Results: Regardless of foot strike patterns, increased knee flexion angle, knee valgus moment, and knee internal rotation moment were observed during cutting to sharper angles (p < 0.001). At 90 and 135°, the FFS condition remained in a varus position and showed lower knee flexion moment than the RFS condition ( p ≤ 0.004). However, no significant differences in knee kinematic and kinetic variables were found between foot strike patterns during cutting to 45°.Conclusions: These findings suggest that sharper cutting angles potentially increase the risk of ACL injury. Compared with the RFS pattern, the FFS pattern induces a slight knee varus angle and a lower knee flexion moment at sharper angles, which might further reduce the load placed on the knee.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental study of the influence of using polyurethane cushion to reduce vibration received by a wheelchair user. 使用聚氨酯坐垫减少轮椅使用者所受振动影响的实验研究。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Gabriela Chwalik-Pilszyk, Zygmunt Dziechciowski, Magdalena Kromka-Szydek, Marek S Kozień

{"title":"Experimental study of the influence of using polyurethane cushion to reduce vibration received by a wheelchair user.","authors":"Gabriela Chwalik-Pilszyk, Zygmunt Dziechciowski, Magdalena Kromka-Szydek, Marek S Kozień","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of this experimental study was to compare the ability of polyurethane cushions of three arbitrary selected thicknesses to minimize vibrations transmitted from the wheelchair to its user.Methods: Measurements were made during passive motion on five different surfaces often found in public spaces. Two tests were carried out during the measurements. In the first test, the sensor was located directly on the surface of the wheelchair seat. In the second test, a polyurethane cushion was placed on the seat, on which the measuring sensor was then placed.Results: The study showed that regardless of the surface on which the wheelchair user moves, the threshold defined in the ISO standard for frequencies in the range of 4-40 Hz was exceeded. However, thanks to the use of polyurethane cushions, vibration damping was visible for frequencies ranging from 10 to 40 Hz. The impact of the user's weight on the magnitude of the perceived vibrations was also observed.Conclusions: Studies show that wheelchair users are exposed to whole body vibration that can negatively affect their health. Cushions made of polyurethane seem to be a promising solution to reduce whole body vibration in the frequency range that is burdensome and harmful to human health.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Redistribution of knee and ankle joint work with different midsole thicknesses in non-rearfoot strikers during running: a cross-sectional study. 跑步时不同中底厚度对非后足着地者膝关节和踝关节工作的重新分配：一项横断面研究。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Tomohiro Miyazaki, Takayuki Aimi, Yasuo Nakamura

{"title":"Redistribution of knee and ankle joint work with different midsole thicknesses in non-rearfoot strikers during running: a cross-sectional study.","authors":"Tomohiro Miyazaki, Takayuki Aimi, Yasuo Nakamura","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of this work was to i nvestigate the effects of midsole thickness on non-rearfoot strike runners' redistributions of knee and ankle joint negative and positive work.Methods: Fourteen healthy male runners wore minimalist, traditional and maximalist shoes and ran in a straight line in each shoe in the laboratory at a speed of 15 km/h, with a ±5% difference being allowed. Whole-body kinematics and ground reaction forces were recorded, and the data of eleven non-rearfoot strikers were used for the analysis. Ankle and knee joint negative and positive work was calculated by integrating each joint's torque power. Friedman test was used for statistical comparisons.Results: Running in minimalist shoes induced significantly greater ankle joint negative and positive work than in other shoes. Running in maximalist shoes induced significantly lower ankle joint positive work and greater knee joint negative work than in other shoes, and significantly greater knee joint positive work than in minimalist shoes.Conclusions: Our results indicated that nonrearfoot strikers redistributed joint negative and positive work from the knee to the ankle when using minimalist shoes or from the ankle to the knee when using maximalist shoes. It is recommended that future research employs more rigorous study designs, such as randomised controlled trials and longitudinal studies, to provide a more accurate assessment of the effect of these shoes on in.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of eliminating visual cues on kinetic and kinematic parameters in back tuck somersault: A comparison between artistic gymnasts and parkour athletes. 消除视觉线索对后翻筋斗运动和运动参数的影响：艺术体操运动员与跑酷运动员之间的比较。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Nour Mohamed Abahnini, Khemais Abahnini, Bessem Mkaouer

{"title":"Effects of eliminating visual cues on kinetic and kinematic parameters in back tuck somersault: A comparison between artistic gymnasts and parkour athletes.","authors":"Nour Mohamed Abahnini, Khemais Abahnini, Bessem Mkaouer","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of this study was to compare the effect of vision (i.e., open and closed eyes) on the kinetic and kinematic parameters of the standing back tuck somersault (SBTS) in artistic gymnasts and parkour athletes.Methods: Eleven male parkour athletes (age 22.53 ± 2.36 years; height 1.72 ± 0.08 m; weight 69.58 ± 3.72 kg) and seven male artistic gymnasts (age 21.96 ± 2.64 years; height 1.62 ± 0.02 m; weight 63.54 ± 1.35 kg) participated in this study. Each subject was asked to perform the SBTS in the same condition (i.e., first open-eyes then closed-eyes). 2D kinetic and kinematic analysis was conducted.Results: The results showed significant interaction (i.e., vision and sport) obtained at the take-off angle (p <0.05 and d = 1.992), horizontal displacement (p <0.05 and d = 1.906) and technical execution (p < 0.05 and d = 1.972). This interaction indicates that when vision is permitted, artistic gymnasts and parkour athletes were similar in all kinetic and kinematic parameters, and technical execution (p > 0.05). However, the elimination of vision during SBTS only affected parkour athletes (i.e., landing angle, ground reaction force, vertical velocity and technical execution, p < 0.05 and d > 1.20) while artistic gymnasts remain unchanged.Conclusion: We conclude that the specificity of the practice in each of the two sports disciplines influences the kinetic and kinematic control of the SBTS and suggests that with closed-eyes, the integration of afferent information relating to the vestibular and proprioceptive systems is different and specific to each discipline's goal. Artistic gymnasts seem to be better skilled in the mechanical and technical control of the SBTS than parkour athletes.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Variability of foot growth in width in relation to length among 3-year-old girls and boys. 3 岁女孩和男孩足部生长宽度与长度的差异。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Ewa Puszczałowska-Lizis, Sabina Lizis, Wioletta Mikuláková

{"title":"Variability of foot growth in width in relation to length among 3-year-old girls and boys.","authors":"Ewa Puszczałowska-Lizis, Sabina Lizis, Wioletta Mikuláková","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of the study was to analyze the length and width of the feet and the mutual rate of growth of these features in 3-year-old girls and boys classified into age categories taking into account the semi-annual division.Methods: The study covered 800 children (400 girls and 400 boys) aged 3. The CQ-ST podoscope was applied as the research tool. The data were analyzed based on Student's t-test for independent samples, Mann-Whitney U-test, Wilcoxon test and simple regression.Results: There were statistically significant differences in the width of the right and left feet, for both girls (1st group: p<0.001; 2nd group: p = 0.006) and boys (1st group: p<0.001; 2nd group: p<0.001), in the absence of differences in length. In the regression models created for the results of girls and boys classified into age categories, the coefficients of determination ranged from R2= 0.24 to R2= 0.48.Conclusions: The right and left feet of the examined girls and boys are characterized by symmetry in terms of length, while in terms of width, the left feet are larger than the right ones. In girls, the width of the foot increases proportionally by about 67-69% of the length, while in boys, the increase in foot width is 49-61% of the growth in length. In boys classified to the 2nd group, the growth of the foot in width in relation to its lenght in length is smaller than in the 1st group.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantitative evaluation of stereoscopic augmented reality visualization using an optical see-through head-mounted display 使用光学透明头戴式显示器的立体增强现实可视化定量评估

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02296-2023-02

Magdalena Żuk, Marcin Majak, Izabela Szczur, Michał Popek, Ewelina Świątek-Najwer

{"title":"Quantitative evaluation of stereoscopic augmented reality visualization using an optical see-through head-mounted display","authors":"Magdalena Żuk, Marcin Majak, Izabela Szczur, Michał Popek, Ewelina Świątek-Najwer","doi":"10.37190/abb-02296-2023-02","DOIUrl":"https://doi.org/10.37190/abb-02296-2023-02","url":null,"abstract":"Purpose The objectives of the current study were to propose a calibration method for accurate augmented reality visualisation using an optical see-through head-mounted display, and to qualitatively evaluate visualisation accuracy for the application in computer assisted surgery. Methods An adaptation of stereo single-point active alignment method was proposed as the calibration procedure together with verification Three tests were performed: display of points in 3D space, on the plane, and on the surface of a skull phantom on inexperience users ( 5 participants) and experienced users ( 17 participants). Results The highest accuracy of visualization was obtained for skull phantom visualisation for an inexperienced user (3.00 mm, std 0.75 mm), while the lowest accuracy was obtained in a 3D visualisation test for an inexperienced user (22.95 mm, std 18.04 mm). The largest error was related to the depth component and amounted to 18.49 mm, std 18.10 mm for an inexperienced user. Conclusions It is possible to achieve relatively high visualisation accuracy (less than 5 mm for visualisation in space) for selected users but providing it for the group of inexperienced users seems to remain a major challenge. The accuracy of point indication can be substantially and statistically significantly increased by visualising objects on surfaces. The proposed methods and obtained results can serve as a basis for further implementation of augmented reality visualisation on an optical see-through head-mounted display in applications requiring high-quality augmented reality guidance of manual tasks.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An in vitro examination of fluoride ions release from selected materials - resin-modified glass-ionomer cement (Vitremer) and nanohybrid composite material (TetricEvoCeram) 树脂改性玻璃离子水泥(Vitremer)和纳米复合材料(TetricEvoCeram)中氟离子释放的体外检测

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02251-2023-01

Piotr Kosior, Sylwia Klimas, Anna Nikodem, Justyna Wolicka, Dorota Diakowska, Adam Watras, Rafał J. Wiglusz, Maciej Dobrzyński

{"title":"An in vitro examination of fluoride ions release from selected materials - resin-modified glass-ionomer cement (Vitremer) and nanohybrid composite material (TetricEvoCeram)","authors":"Piotr Kosior, Sylwia Klimas, Anna Nikodem, Justyna Wolicka, Dorota Diakowska, Adam Watras, Rafał J. Wiglusz, Maciej Dobrzyński","doi":"10.37190/abb-02251-2023-01","DOIUrl":"https://doi.org/10.37190/abb-02251-2023-01","url":null,"abstract":"Purpose The aim of this study was to examine a short-term (7 days) fluoride ions release and mechanical properties (microhardness) of dental materials - resin-modified glass- ionomer – Vitremer (3M ESPE) and nanohybrid universal composite - TetricEvoCeram (IvoclarVivadent) to assess whether both materials may constitute effective method of tooth decay prevention. Methods The cylinder-shaped samples were prepared in a special form of a pellet, 2 mm thick and 5 mm in diameter. Specimens were cured with a use of the Bluephase Style 20i lamp (IvoclarVivadent, Schaan, Liechtenstein). Afterwards, they were immersed in the studied solutions. The release of fluoride ions was examined with a use of an ORION 9609 ion-selective electrode (Thermo Fisher Scientific Co., Waltham, MA, USA) connected to a pH/ion meter CPI-551 Elmetron microcomputer. Microhardness measurements were carried out using microhardness tester CSM MicroCombi Tester™ and Indentation 5.21 software. Scanning electron micro-scope (SEM) were created on an FEI Nova NanoSEM 230 microscope (Hills-boro, OR, USA). The magnification was set to 2500x. Results Based on the results, both materials showed similar mechanical properties (microhardness), however cumulated release of F- after 7 days was notably higher from Vitremer in all artificial saliva solutions (1-7). Conclusions Therefore, we can assume that Vitremer has better remineralization potential and it may constitute more effective method of tooth decay prevention.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cognitive functional therapy as a complementary treatment for posture and disability of chronic neck pain: secondary analysis of a randomized controlled trial. 认知功能疗法作为慢性颈部疼痛姿势和残疾的补充治疗:一项随机对照试验的二次分析。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2022-01-01

Norollah Javdaneh, Arash Shams, Sadredin Shojaedin, Łukasz Rydzik, Tadeusz Ambroży, Wiesław Chwała

{"title":"Cognitive functional therapy as a complementary treatment for posture and disability of chronic neck pain: secondary analysis of a randomized controlled trial.","authors":"Norollah Javdaneh, Arash Shams, Sadredin Shojaedin, Łukasz Rydzik, Tadeusz Ambroży, Wiesław Chwała","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of this study was to compare the effects of scapular stabilization exercise with and without cognitive functional therapy (CFT) on disability and scapular kinematics in people suffering from chronic neck pain.Methods: A total of 72 patients with chronic non-specific neck pain were randomized into scapular stabilization exercise alone, n = 24, combined (scapular stabilization exercise + CFT), n = 24, and a control group, n = 24. Scapular kinematic and disability were measured at baseline and after the intervention.Results: Statistically significant differences in neck pain and disability scale (NPAD) were found when the multimodal physiotherapy group including a cognitive functional approach was compared with stabilization exercises group at 6 weeks (effect size (95%CI) = -1.63 (-2.55, -.71); P = 0.019)). Regarding the neck disability index (NDI), a significant between-group difference was observed at six-week (effect size (95%CI) = -2.69 (-3.80, -1.58); P = 0.007), with the superiority of effect in multimodal physiotherapy group. A significant between-group difference was observed in the scapular upward rotation and scapular osterior tilt at 30°, 60°, 90° and 120° of shoulder adduction.Conclusions: A group-based multimodal rehabilitation program including scapular stabilization exercise plus cognitive functional therapy was superior to group-based stabilization exercises alone for decreasing disability and, improving scapular kinematic in patients with chronic neck pain.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9673583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correlation between rotational moments of the knee and other joints during gait, including the free moment of patients with a medial meniscus tear. 步态中膝关节旋转力矩与其他关节的相关性，包括内侧半月板撕裂患者的自由力矩。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2022-01-01

Takuya Ibara, Kiyotaka Hada, Ryosuke Karashima, Mahito Kawashima, Masaya Anan

{"title":"Correlation between rotational moments of the knee and other joints during gait, including the free moment of patients with a medial meniscus tear.","authors":"Takuya Ibara, Kiyotaka Hada, Ryosuke Karashima, Mahito Kawashima, Masaya Anan","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Rotation of the knee puts stress on the medial meniscus and can be a factor in the progression of knee osteoarthritis. This study aimed to investigate the rotational moment (internal rotation and external rotation) of the knee during gait and relationship between the rotational moments of the knee and other joints, including the free moment during gait.Methods: We included 18 patients with medial meniscus tears (MM group) and 10 asymptomatic participants in this study. We performed 3D gait analysis. The internal ankle, knee, and hip rotational moments as well as free moment were compared between the groups. Additionally, we investigated correlations between rotational moments of the knee and other joints during gait.Results: The maximal knee external rotation moment in the MM group was smaller than that in the asymptomatic group ( p = 0.04, g = 0.76); however, there were no significant differences in the maximal internal rotation moment between the groups ( p = 0.97, g = 0.02). The internal rotation (external knee external rotation) moment positively correlated with the hip internal rotation moment ( p 〈 0.01, r = 0.69) in the MM group.Conclusions: The internal rotation (passive knee external rotation moment) did not decrease sufficiently, and correlation was observed between moments of the knee and hip in the MM group, especially during the late stance phase of gait. Reducing these abnormal moments during gait through rehabilitation may be important in patients with medial meniscus tears to prevent rapid progression of knee osteoarthritis.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9727189","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A kinematic analysis of the basketball shot performance: impact of distance variation to the basket 篮球投篮动作的运动学分析:距离变化对篮筐的影响

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2022-01-01 DOI: 10.37190/abb-01995-2021-06

Cíntia França, Élvio Rúbio Gouveia, M. Coelho-e-Silva, B. Gomes

{"title":"A kinematic analysis of the basketball shot performance: impact of distance variation to the basket","authors":"Cíntia França, Élvio Rúbio Gouveia, M. Coelho-e-Silva, B. Gomes","doi":"10.37190/abb-01995-2021-06","DOIUrl":"https://doi.org/10.37190/abb-01995-2021-06","url":null,"abstract":"Purpose: The aim of the current study was to examine the variation on the kinematic parameters in the basketball shot associated with the shooting distance. Methods: Twenty-seven female adolescent basketball players aged 12.1 ± 0.9 years completed 10 BS trials from a frontal position of 4.75 m and 5.75 m from the basket. Nine anatomical markers were placed on the participants’ dominant side to assess the kinematic variables. The following variables were analyzed: angle, velocity, and height at ball release; centre of mass horizontal displacement and maximum height attained; maximum hip height and hip height at release; shoulder, elbow, and knee angular position and velocity at ball release; deepest knee flexion during the preparatory phase; the peak of the angular velocity of the shoulder, elbow, and knee joints. Results: At release, the angle decreased while velocity increased significantly at 5.75 m. During the release, greater shoulder flexion and increased joint (shoulder and knee) angular velocity were observed. The deepest knee flexion and the centre of mass horizontal displacement were accentuated at 5.75 m. The ball release occurred before the peak of the jump phase. Conclusions: To compensate for the long ball trajectory to the basket, participants perform a set of adjustments in the body segmental organization to increase the ball velocity at release. The coaches’ feedback should focus on the shooting arm’s positioning and in the jump phase (to jump as close to vertical as possible). Also, a consistent shooting technique should be acquired close to the basket before expanding the shooting range.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69999457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1