Sports Biomechanics最新文献_第6页

Adapting the percentage intensity method to assess accelerations and decelerations in football: moving beyond absolute and arbitrary thresholds. 采用百分比强度法评估足球运动中的加速度和减速度：超越绝对阈值和任意阈值。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-08-27 DOI: 10.1080/14763141.2024.2393188

Hugo Silva, Fábio Yuzo Nakamura, Fabio R Serpiello, João Ribeiro, Paulo Roriz, Rui Marcelino

{"title":"Adapting the percentage intensity method to assess accelerations and decelerations in football: moving beyond absolute and arbitrary thresholds.","authors":"Hugo Silva, Fábio Yuzo Nakamura, Fabio R Serpiello, João Ribeiro, Paulo Roriz, Rui Marcelino","doi":"10.1080/14763141.2024.2393188","DOIUrl":"10.1080/14763141.2024.2393188","url":null,"abstract":" We adapted the percentage intensity approach to monitor accelerations and decelerations allowing players' individualisation. Forty-two players were monitored during four microcycles via global navigation satellite system devices. Raw velocity and time data were collected to calculate acceleration and deceleration magnitudes according to specific starting speed intervals, and the efforts intensities were established as very low (<25% of the maximal effort), low (25-50%), moderate (50-75%) and high (>75%). Linear regressions and Pearson correlation (r) analysed the relationship between maximal efforts and starting speeds; additionally, mean paired differences compared efforts magnitudes between subsequent starting speed intervals. Most very low intensity accelerations (86%) and decelerations (79%) started from <5 km.h-1. Correlation between maximal efforts and starting speeds were r = -0.97 (p < .001) for acceleration, and r = -0.94 (p < .01) for deceleration. Maximal acceleration decreased as starting speed increases (very large effect sizes), but deceleration is less starting speed dependent (unclear to large effect sizes). This adaptation allows practitioners to individualise accelerations and decelerations classification during real-life scenarios, leading to a more precise training prescription. The very low intensity interval could be excluded to consider only relevant efforts. Maximal acceleration should be collected for each starting speed interval because accelerations are starting speed dependents.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3514-3525"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Are there differences in the kinetic parameters of the vertical jump performed by beach volleyball players on different types of sand? 沙滩排球运动员在不同类型的沙地上进行垂直起跳的运动参数是否存在差异？

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-08-27 DOI: 10.1080/14763141.2024.2394803

Francisco O Neto, Geovani M Silva, Mário A M Simim, Túlio Banja, Filipa Sousa, Pedro Fonseca, Márcio Goethel, Ricardo Romero, Karla de Jesus, Alexandre I A Medeiros

{"title":"Are there differences in the kinetic parameters of the vertical jump performed by beach volleyball players on different types of sand?","authors":"Francisco O Neto, Geovani M Silva, Mário A M Simim, Túlio Banja, Filipa Sousa, Pedro Fonseca, Márcio Goethel, Ricardo Romero, Karla de Jesus, Alexandre I A Medeiros","doi":"10.1080/14763141.2024.2394803","DOIUrl":"10.1080/14763141.2024.2394803","url":null,"abstract":"Beach volleyball (BV) is an intermittent sport characterised by short-duration and highly demanding activities with low intensity periods. Establishing if players' jump ability is influenced by sand granulometry is a useful information for sport scientists, coaches and players. This study aimed to assess the possible differences in the kinetics parameters of the vertical jump on different types of sand performed by BV players. Twelve elite female players performed six countermovement jumps (CMJs) in three different surface conditions (fine sand, reference, coarse sand) in a random counterbalanced order (216 jumps). A generalised mixed model approach detected differences for CMJ model in total duration (p: 0.016), eccentric phase duration (p: 0.007), concentric phase duration (p: 0.011), time to peak power (p: < 0.001), time to peak force (p: 0.014), maximum rate force development concentric phase (p: 0.004), maximum velocity (p: 0.028) and peak power eccentric (p: 0.018). Coarse sand decreases the time spent jumping compared to fine sand, without a penalty to jump height. Coaches and athletes should take this information into account to enhance their understanding of practice strategies and game conditions. One might anticipate a faster pace in games played on coarse sand and a slower pace on fine sand.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3171-3180"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142082415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Biomechanical Load Quantification Using a Lower Extremity Inertial Sensor Setup During Football Specific Activities. 在足球特定活动中使用下肢惯性传感器设置的生物力学负荷量化。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2022-03-28 DOI: 10.1080/14763141.2022.2051596

Bram J C Bastiaansen, Riemer J K Vegter, E Wilmes, Cornelis J de Ruiter, Koen A P M Lemmink, Michel S Brink

{"title":"Biomechanical Load Quantification Using a Lower Extremity Inertial Sensor Setup During Football Specific Activities.","authors":"Bram J C Bastiaansen, Riemer J K Vegter, E Wilmes, Cornelis J de Ruiter, Koen A P M Lemmink, Michel S Brink","doi":"10.1080/14763141.2022.2051596","DOIUrl":"10.1080/14763141.2022.2051596","url":null,"abstract":"Training load monitoring systems in football do not focus on lower extremities and therefore potentially neglect important information to optimise performance or reduce injury risk. The current study aims to present joint and segment angular accelerations as novel indicators to quantify lower extremity biomechanical load measured by a new inertial sensor setup. Relationships were explored with commonly used whole-body training load indicators using principal component analysis (PCA). Sixteen male amateur football players performed a linear sprint and an agility T-test. An inertial sensor setup, and local position measurement system were used to collect training load data. Hip Load, Knee Load, Thigh Load and Shank Load were introduced to quantify lower extremity biomechanical load. Three principal components were identified for both tests, explaining 91% and 86% of the variance. The indicators for the lower extremities contributed to the second principal component for both tests and provide distinct information compared to whole-body load indicators. The results show the potential to use an inertial sensor setup combined with common monitoring systems to evaluate training load, which may help optimise future performance and reduce injury risk. These relationships should be further examined during other football specific activities such as shooting or jumping.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":"1 1","pages":"2675-2690"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44420039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

What to stretch? - Isolated proprioceptive neuromuscular facilitation stretching of either quadriceps or triceps surae followed by post-stretching activities alters tissue stiffness and jump performance. 拉伸什么？- 对股四头肌或肱三头肌进行孤立本体感觉神经肌肉促进拉伸，然后进行拉伸后活动，可改变组织僵硬度和跳跃表现。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2022-04-10 DOI: 10.1080/14763141.2022.2058991

Andreas Konrad, Wolfgang Seiberl, Markus Tilp, Denis Holzer, Florian Kurt Paternoster

{"title":"What to stretch? - Isolated proprioceptive neuromuscular facilitation stretching of either quadriceps or triceps surae followed by post-stretching activities alters tissue stiffness and jump performance.","authors":"Andreas Konrad, Wolfgang Seiberl, Markus Tilp, Denis Holzer, Florian Kurt Paternoster","doi":"10.1080/14763141.2022.2058991","DOIUrl":"10.1080/14763141.2022.2058991","url":null,"abstract":"To overcome a possible drop in performance following longer stretch durations (>60 s), post-stretching dynamic activities (PSA) can be applied. However, it is not clear if this is true for isolated proprioceptive neuromuscular facilitation (PNF) stretching of different muscle groups (e.g., triceps surae and quadriceps). Thus, 16 participants performed both interventions (triceps surae PNF + PSA; quadriceps PNF + PSA) in random order, separated by 48 h. Jump performance was assessed with a force plate, and tissue stiffness was assessed with a MyotonPro device. While no changes were detected in the countermovement jump performance, the PNF + PSA interventions resulted in a decrease in drop jump performance which led to a large magnitude of change following the triceps surae PNF + PSA and a small-to-medium magnitude of change following the quadriceps PNF + PSA. Moreover, in the triceps surae PNF + PSA intervention, a decrease in Achilles tendon stiffness was seen, while in the quadriceps PNF + PSA intervention, a decrease in the overall quadriceps muscle stiffness was seen. According to our results, we recommend that especially triceps surae stretching is avoided during warm-up (also when PSA is included) when the goal is to optimise explosive or reactive muscle contractions.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2798-2815"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9217777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 hurdle height on lower limb joint kinematics and kinetics of male trainee sprinters during hurdle jumps. 跨栏高度对男子运动员跨栏时下肢关节运动学和动力学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2023-07-31 DOI: 10.1080/14763141.2023.2241852

Keitaro Seki, Shingo Hondo

{"title":"Effects of hurdle height on lower limb joint kinematics and kinetics of male trainee sprinters during hurdle jumps.","authors":"Keitaro Seki, Shingo Hondo","doi":"10.1080/14763141.2023.2241852","DOIUrl":"10.1080/14763141.2023.2241852","url":null,"abstract":"Hurdle jumps are frequently practiced in the field of sports training. The present study aimed to clarify the effect of hurdle heights on jumping height and joint kinematics, and kinetics during hurdle jumps. Ten male Japanese trainee sprinters performed at three heights (0.76, 0.91 and 1.06 m) of hurdle jumps and maximum countermovement jump (CMJ). Sagittal plane kinematics and ground reaction force were measured. Jump height significantly increased with hurdle heights (ηp2 = 0.65), but the difference in jump heights was small as compared to the difference in the hurdle heights. The contact time and mechanical work of the lower limb joints did not differ between different hurdle heights. The minimal angles of the knee (ηp2 = 0.47) and hip (ηp2 = 0.70) joints during the flight phase significantly decreased with higher hurdle heights. The load characteristics of the lower limb joint with higher hurdle heights would be similar to those with lower hurdle heights. In higher hurdle heights, since the increase in jump height was smaller than the increase in hurdle height, the legs were more flexed to clear the hurdle. Therefore, the hurdle height which is similar to the maximum CMJ height would be appropriate as a training load.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3131-3140"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9897573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Effect of backstroke ledge on backstroke start technique for water entry. 仰泳凸台对仰泳入水起跳技术的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2023-08-11 DOI: 10.1080/14763141.2023.2245807

Daisuke Sato, Hiroshi Suito, Naoyuki Yamashita, Kenta Kusanagi, Takuya Mizukami, Shigehiro Takahashi

{"title":"Effect of backstroke ledge on backstroke start technique for water entry.","authors":"Daisuke Sato, Hiroshi Suito, Naoyuki Yamashita, Kenta Kusanagi, Takuya Mizukami, Shigehiro Takahashi","doi":"10.1080/14763141.2023.2245807","DOIUrl":"10.1080/14763141.2023.2245807","url":null,"abstract":"This study aimed to investigate how the use of a backstroke ledge (BSL) affects backstroke start performance in terms of flight distance and water entry posture in competitive backstroke swimmers. Ten male swimmers performed a maximum of 15 m in backstroke, starting with or without a BSL. Two 120 Hz and one 60 Hz video cameras were used to analyse the kinematic variables and angular momentum of the whole body. Using a BSL reduced the time to reach 5 and 15 m compared with not using a BSL (p < 0.04). Using a BSL heightened vertical position of the centre of mass (CM) at take-off, lengthened flight distance, and increased angular momentum (p < 0.02). Additionally, the lower limb entry angle was larger, and the hole entry posture angle was smaller with a BSL than without a BSL (p < 0.04). These results suggest that a high CM position at the start of the backstroke with a BSL increased the flight distance, and a large angular momentum enabled hole entry as well as improved the horizontal velocity after water entry. Hence, increases in flight distance and velocity after water entry were contributing factors in improving the start performance of the backstroke when using a BSL.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3235-3245"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10028671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Changes in torque complexity and maximal torque after a fatiguing exercise protocol. 疲劳运动方案后扭矩复杂性和最大扭矩的变化。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2022-04-29 DOI: 10.1080/14763141.2022.2067588

João Oliveira, Nuno Casanova, João S Gomes, Pedro Pezarat-Correia, Sandro Freitas, João R Vaz

{"title":"Changes in torque complexity and maximal torque after a fatiguing exercise protocol.","authors":"João Oliveira, Nuno Casanova, João S Gomes, Pedro Pezarat-Correia, Sandro Freitas, João R Vaz","doi":"10.1080/14763141.2022.2067588","DOIUrl":"10.1080/14763141.2022.2067588","url":null,"abstract":"Torque outputs exhibit non-random fluctuations in their temporal structure, i.e., complexity. Fatigue has been shown to alter this structure. The torque outputs typically become more regular, resulting in decreased adaptability. Importantly, torque complexity was shown a different recovery pattern after fatigue compared to maximal torque. However, it remains to be understood if these uncoupled patterns of recovery are muscle dependent. In addition, it also remains to be investigated if changes in maximal torque and complexity are correlated. This study investigated (i) the effects of a fatiguing protocol on the complexity and maximal torque from plantar flexors and (ii) the relationship between changes in these two outputs. Ten participants visited the laboratory, and measures were taken at baseline, immediately after, 1 h after and 24 h after the fatiguing protocol. Maximum voluntary contraction, isometric contractions at 30% of maximum and pain pressure threshold were collected. Both legs were assessed, but only one was given the fatiguing protocol. Two-way ANOVAs and correlations were conducted. The fatiguing protocol decreased torque complexity (~35%) and maximal torque (~20%), and they exhibited uncoupled patterns of recovery. Moreover, the correlation analysis showed no correlation between changes in these parameters. These findings support that these parameters are independent of each other.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":"1 1","pages":"2873-2885"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42564827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Stride-to-stride variability is altered when running to isochronous visual cueing but remains unaltered with fractal cueing. 在等时视觉提示下跑步时，步与步间的变异性会发生改变，但在分形提示下，步与步间的变异性不会发生改变。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-01-02 DOI: 10.1080/14763141.2023.2298958

João R Vaz, Nelson Cortes, João S Gomes, Joana F Reis, Nick Stergiou

{"title":"Stride-to-stride variability is altered when running to isochronous visual cueing but remains unaltered with fractal cueing.","authors":"João R Vaz, Nelson Cortes, João S Gomes, Joana F Reis, Nick Stergiou","doi":"10.1080/14763141.2023.2298958","DOIUrl":"10.1080/14763141.2023.2298958","url":null,"abstract":"Running synchronised to external cueing is often implemented in both clinical and training settings, and isochronous cueing has been shown to improve running economy. However, such cueing disregards the natural stride-to-stride fluctuations present in human locomotion which is thought to reflect higher levels of adaptability. The present study aimed to investigate how alterations in the temporal structure of cueing affect stride-to-stride variability during running. We hypothesised that running using cueing with a fractal-like structure would preserve the natural stride-to-stride variability of young adults. Thirteen runners performed four 8-min trials: one uncued (UNC) trial and three cued trials presenting an isochronous (ISO), a fractal (FRC) and a random (RND) structure. Repeated measures ANOVAs were used to identify changes in the dependent variables. We have found no main effect on the cardiorespiratory parameters, whereas a significant main effect was observed in the temporal structure of stride-to-stride variability. During FRC, the participants were able to retain the fractal patterns of their natural locomotor variability observed during the UNC condition, while during the ISO and RND they exhibited more random of fluctuations (i.e., lower values of fractal scaling). Our results demonstrate that cueing based on the natural stride-to-stride fluctuations opens new avenues for training and rehabilitation.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3628-3640"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139075677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Differences in running biomechanics and tibiotalar cartilage T2 relaxation time between runners with and without asymptomatic tibial sesamoid bone marrow edema - clinical case series. 有症状和无症状胫骨剑突骨骨髓水肿的跑步者在跑步生物力学和胫骨软骨T2弛豫时间上的差异--临床病例系列。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-05-27 DOI: 10.1080/14763141.2024.2356859

Hyun Kyung Kim, Seyed Ali Mirjalili

{"title":"Differences in running biomechanics and tibiotalar cartilage T2 relaxation time between runners with and without asymptomatic tibial sesamoid bone marrow edema - clinical case series.","authors":"Hyun Kyung Kim, Seyed Ali Mirjalili","doi":"10.1080/14763141.2024.2356859","DOIUrl":"10.1080/14763141.2024.2356859","url":null,"abstract":"The impact of asymptomatic bone marrow edema (BME) in sesamoids on running biomechanics remains largely unknown, but exploring this relationship could aid early detection of forefoot-related injuries with cost-effective modalities. This study aimed to compare the running biomechanics of runners with asymptomatic BME in the tibial sesamoids with that of healthy controls. Four runners with asymptomatic BME in tibial sesamoids and four healthy runners participated. Lower extremity joint kinetics and kinematics were assessed along with plantar pressure while running at a self-selected speed. The T2 relaxation time of the tibiotalar cartilage was measured using MRI-derived T2 maps. Compared to the non-injured group, the injured group exhibited significantly lower plantar pressure under the hallux (p = 0.001), increased peak ankle rotation angles (p = 0.025), reduced ankle power generation (p = 0.049), and increased knee extension torque (p = 0.015). No significant differences in T2 values of the tibiotalar cartilage were observed. It appears that runners with asymptomatic BME adapted their running strategies by modifying their ankle biomechanics and reducing plantar pressure, even in the absence of pain. While the precise implications of these biomechanical alterations warrant further investigation, this study provides valuable insights into the relationship between asymptomatic BME and running biomechanics.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3466-3477"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141158322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The effect of knee braces on knee joint kinematics at different exercise speeds. 不同运动速度下护膝对膝关节运动学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2024-12-01 Epub Date: 2024-10-27 DOI: 10.1080/14763141.2024.2409656

Jian Wang, Juncong Yang, Xinwei Huang, Ye Luo, Danni Wu, Xiaofan Huang, Shaobai Wang

{"title":"The effect of knee braces on knee joint kinematics at different exercise speeds.","authors":"Jian Wang, Juncong Yang, Xinwei Huang, Ye Luo, Danni Wu, Xiaofan Huang, Shaobai Wang","doi":"10.1080/14763141.2024.2409656","DOIUrl":"10.1080/14763141.2024.2409656","url":null,"abstract":"This study aims to investigate the influence of a new semi-rigid knee joint braces on kinematics using the Opti-knee knee joint kinematic analysis system at various exercise speeds. Twenty-four healthy young male adults were recruited for this study. Participants were randomly assessed while wearing and not wearing knee brace at four different speeds on a treadmill: normal walking (3.6 km/h), brisk walking (5.4 km/h), jogging (9 km/h), and moderate intensity running (10.8 km/h). Six degrees of freedom kinematic data from the knee joint were collected. Paired t-tests were conducted to calculate the kinematic differences. At speeds of 3.6 km/h and 5.4 km/h, wearing the knee brace led to reduced knee joint mobility in anterior-posterior translation, superior-inferior translation, internal-external rotation, and flexion-extension angles during the stance phase (P < 0.05). At 9 km/h, wearing the brace reduced knee joint internal-external rotation and flexion-extension mobility during the stance phase (P < 0.05). At 10.8 km/h, wearing the brace reduced knee joint flexion-extension mobility during the stance phase (P < 0.05). Wearing brace has significant influence on knee kinematics at four speeds, and the effect of brace varies with the speed of movement.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"3526-3537"},"PeriodicalIF":2.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142511645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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