Sports Biomechanics最新文献_第6页

Analysis of pacing and kinematics in 3000 m freestyle in elite level swimmers. 分析精英级游泳运动员在 3000 米自由泳中的步法和运动学。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-03-03 DOI: 10.1080/14763141.2023.2184418

Óscar López-Belmonte, Jesús J Ruiz-Navarro, Ana Gay, Francisco Cuenca-Fernández, Iñigo Mujika, Raúl Arellano

{"title":"Analysis of pacing and kinematics in 3000 m freestyle in elite level swimmers.","authors":"Óscar López-Belmonte, Jesús J Ruiz-Navarro, Ana Gay, Francisco Cuenca-Fernández, Iñigo Mujika, Raúl Arellano","doi":"10.1080/14763141.2023.2184418","DOIUrl":"10.1080/14763141.2023.2184418","url":null,"abstract":"This study aimed to determine elite swimmers' pacing strategy in the 3000 m event and to analyse the associated performance variability and pacing factors. Forty-seven races were performed by 17 male and 13 female elite swimmers in a 25 m pool (20.7 ± 2.9 years; 807 ± 54 FINA points). Lap performance, clean swim velocity (CSV), water break time (WBT), water break distance (WBD), stroke rate (SR), stroke length (SL) and stroke index (SI) were analysed including and excluding the first (0-50 m) and last lap (2950-3000 m). The most common pacing strategy adopted was parabolic. Lap performance and CSV were faster in the first half of the race compared to the second half (p < 0.001). WBT, WBD, SL and SI were reduced (p < 0.05) in the second half compared to the first half of the 3000 m when including and excluding the first and last laps for both sexes. SR increased in the second half of the men's race when the first and last laps were excluded. All studied variables showed significant variation between the two halves of the 3000 m, the highest variation being obtained in WBT and WBD, suggesting that fatigue negatively affected swimming kinematics.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"921-937"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9074771","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 virtual reality immersion on postural stability during a dynamic transition task. 虚拟现实沉浸对动态过渡任务中姿势稳定性的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-01-04 DOI: 10.1080/14763141.2022.2162434

Jake B Bendixen, Ben T Biddinger, Janet E Simon, Scott M Monfort, And Dustin R Grooms

{"title":"Effects of virtual reality immersion on postural stability during a dynamic transition task.","authors":"Jake B Bendixen, Ben T Biddinger, Janet E Simon, Scott M Monfort, And Dustin R Grooms","doi":"10.1080/14763141.2022.2162434","DOIUrl":"10.1080/14763141.2022.2162434","url":null,"abstract":"Dynamic postural stability paradigms with virtual reality (VR) provide a means to simulate real-world postural challenges and induce customised but controlled perturbations. The purpose of this study was to determine the effects of a VR unanticipated perceptual sport perturbation on postural stability compared to traditional methods. Sixteen individuals between the ages of 18-23 years (19.5 ± 1.4 years) with no history of injury within 12 months were recruited. A double-leg to single-leg transition task was performed on a force plate in one of the following conditions: eyes open (EO), eyes closed (EC), a sport video with a standard non-immersive computer monitor (SV), and VR. The VR and SV conditions used a pre-recorded tackle avoidance task video where participants shifted to a leg in the opposite direction of a simulated opponent, while EC and EO were completed with auditory prompts. Relative to the EO condition, EC and VR induced greater postural instability. The largest effect sizes were between VR and EO for path length (g = 3.57), mean velocity anterior-posterior centre of pressure (CoP) (g = 3.65), and mean velocity medial-lateral CoP (g = 3.27). By including VR, the difficulty of a clinically based postural stability task was increased to the level of EC while accounting for the sporting environment.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"859-873"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10847845/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10533208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hamstring Muscle Stiffness Affects Lower Extremity Muscle Recruitment and Landing Forces during Double-Legs Vertical Jump. 腿筋肌肉僵硬影响双腿垂直起跳时下肢肌肉的恢复和落地力。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-06-05 DOI: 10.1080/14763141.2023.2219670

Amornthep Jankaew, Yih-Kuen Jan, Ing-Shiou Hwang, Li-Chieh Kuo, Cheng-Feng Lin

{"title":"Hamstring Muscle Stiffness Affects Lower Extremity Muscle Recruitment and Landing Forces during Double-Legs Vertical Jump.","authors":"Amornthep Jankaew, Yih-Kuen Jan, Ing-Shiou Hwang, Li-Chieh Kuo, Cheng-Feng Lin","doi":"10.1080/14763141.2023.2219670","DOIUrl":"10.1080/14763141.2023.2219670","url":null,"abstract":"It is unclear how hamstring stiffness influences lower limb muscle activation during jump-landing mechanics. The study aimed to investigate the role of the hamstring stiffness on lower limb muscle recruitment during jumping manoeuvres. Thirty male athletes were recruited and allocated into high- and low-stiffness groups. Hamstring stiffness was determined as the average stiffness of bilateral hamstrings using a MyotonPRO. Surface electromyography of the bilateral gluteus maximus, quadriceps, and hamstring muscles was assessed during the takeoff, at ground contact, and at landing, while ground reaction force (GRF) was measured during the squat jump, countermovement jump, and drop vertical jump. The results showed that athletes with greater hamstring stiffness exhibited a higher median frequency of the lateral hamstrings in both limbs and the vastus medialis in the dominant limb than the low-stiffness group during takeoff, adjustment, and landing phases for all vertical jumps. The high stiffness group landed with lower vertical GRF in the drop vertical jump. In conclusion, athletes with high hamstring stiffness showed greater motor unit recruitment during takeoff and landing phases. This recruitment did not influence takeoff performance but aid with absorbing landing force. Therefore, the contribution of the lower limb muscle stiffness should be considered in sports activities.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1096-1114"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9572332","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 influence of modeling parameters for computing joint kinetics in adolescent and adult pitchers. 青少年和成年投手关节动力学计算模型参数的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-01-31 DOI: 10.1080/14763141.2023.2170825

Aaron Trunt, Lisa N MacFadden

{"title":"The influence of modeling parameters for computing joint kinetics in adolescent and adult pitchers.","authors":"Aaron Trunt, Lisa N MacFadden","doi":"10.1080/14763141.2023.2170825","DOIUrl":"10.1080/14763141.2023.2170825","url":null,"abstract":"Baseball pitching is a well-studied area of sports biomechanics partially due to high upper extremity (UE) injury rates. Joint kinetics have not been linked directly to UE injury in pitchers but are often used in lieu of injury data as a proxy for injury risk. Pitchers exhibit adaptations in the throwing arm that may affect body segment inertial parameters (BSIPs); however, these are unaccounted for in traditional modelling methods and may contribute to the lack of evidence linking joint kinetics to injury. Therefore, this study aimed to describe the BSIPs of the throwing arm in adolescent and adult pitchers and compare joint kinetics computed from traditional modelling methods to those using individualised BSIPs. Forty-five pitchers underwent dual-energy X-ray absorptiometry (DXA) scans and motion capture sessions in a biomechanics laboratory. Individual BSIPs from the DXA scans were used to estimate UE joint kinetics via inverse dynamics and compared to joint kinetics computed from scaled BSIPs. Throwing arm BSIPs in pitchers were significantly different from studies of the general population. Variable levels of agreement and significant differences in joint kinetics existed between methods, indicating that using joint kinetics computed via scaled models to identify pitchers at risk of injury may be inappropriate.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"874-888"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10593383","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

A video analysis examination of the frequency and type of head impacts for player positions in youth ice hockey and FE estimation of their impact severity. 青少年冰球运动员位置头部撞击频率和类型的视频分析研究及其撞击严重程度的FE估计。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-03-13 DOI: 10.1080/14763141.2023.2186941

Jessica Butterfield, Andrew Post, Clara Karton, Michael A Robidoux, Michael Gilchrist, T Blaine Hoshizaki

{"title":"A video analysis examination of the frequency and type of head impacts for player positions in youth ice hockey and FE estimation of their impact severity.","authors":"Jessica Butterfield, Andrew Post, Clara Karton, Michael A Robidoux, Michael Gilchrist, T Blaine Hoshizaki","doi":"10.1080/14763141.2023.2186941","DOIUrl":"10.1080/14763141.2023.2186941","url":null,"abstract":"This research employed head impact frequency and frequency of estimated strain to analyse the influence of player position on brain trauma in U15 and U18 youth ice hockey. The methods involved a video analysis of 30 U15 and 30 U18 games where frequency, type of head impact event, and player position during impact was recorded. These impacts were then simulated in the laboratory using physical reconstructions and finite element modelling to determine the brain strains for each impact category. U15 forwards experienced significantly higher head impact frequencies (139) when compared to defenceman (50), with goalies showing the lowest frequency (6) (p < 0.05). U18 forwards experienced significantly higher head impact frequencies (220) when compared to defenceman (92), with goalies having the least frequent head impacts (4) (p < 0.05). The U15 forwards had a significantly higher frequency of head impacts at the very low and med strains and the U18s had higher frequency of head impacts for the very low and low level strains (p < 0.05). Game rule changes and equipment innovation may be considered to mitigate the increased risk faced by forwards compared to other positions in U15 and U18 youth ice hockey.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"953-969"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9092996","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

Self-directed kinematic adjustments when learning the kettlebell swing in young adults. 青壮年在学习壶铃挥杆时的自我运动学调整。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-01-04 DOI: 10.1080/14763141.2022.2161409

Matthew Beerse, Cian Callahan, Joaquin Barrios

{"title":"Self-directed kinematic adjustments when learning the kettlebell swing in young adults.","authors":"Matthew Beerse, Cian Callahan, Joaquin Barrios","doi":"10.1080/14763141.2022.2161409","DOIUrl":"10.1080/14763141.2022.2161409","url":null,"abstract":"The kettlebell swing is a complex exercise shown to provide cardiovascular and strength benefits. However, novice kinematic pattern differences might limit the effectiveness of the kettlebell swing to fully realise those benefits. The purpose of this study was to assess how novices self-directed their learning of the kettlebell swing using only an instructional video. Twelve young adults performed kettlebell swings sets over one week. We captured kinematic data of their first sets without practice, sets within-day following practice, and sets one week later following practice. The subjects received no augmented feedback. Ankle, knee, hip, and shoulder mean and variability kinematics were compared. In addition, the relative timing of peak sagittal plane angular velocity of the hip and shoulder was evaluated to determine whether the hips led to the shoulders. Within-day subjects reduced hip and shoulder peak extension, knee and hip peak flexion, and hip peak flexion velocity. Between-day subjects reduced mean hip peak flexion and range of motion, as well as peak knee flexion. Our results suggest novices prioritised improving consistency early in practice and then adjusted their kinematic pattern over the week. Moreover, most subjects transitioned to the hips leading shoulders, suggesting this is a perceivable coordination pattern by intrinsic feedback.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"842-858"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10533205","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 effects of fatigue on lower-body extremities during a maximum effort kettlebell swing protocol. 在最大努力壶铃摆动方案中疲劳对下肢的生物力学影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-01 DOI: 10.1080/14763141.2023.2207556

Nicholas A Levine, Seungho Baek, Noelle Tuttle, Hunter B Alvis, Cheng-Ju Hung, Matthew L Sokoloski, Jemin Kim, Mark S Hamner, Sangwoo Lee, Brandon R Rigby, Young-Hoo Kwon

{"title":"Biomechanical effects of fatigue on lower-body extremities during a maximum effort kettlebell swing protocol.","authors":"Nicholas A Levine, Seungho Baek, Noelle Tuttle, Hunter B Alvis, Cheng-Ju Hung, Matthew L Sokoloski, Jemin Kim, Mark S Hamner, Sangwoo Lee, Brandon R Rigby, Young-Hoo Kwon","doi":"10.1080/14763141.2023.2207556","DOIUrl":"10.1080/14763141.2023.2207556","url":null,"abstract":"Kettlebell training provides multiple health benefits, including the generation of power. The primary purpose of this study was to examine the kinematics and kinetics of lower-body joints during a repeated, maximum effort kettlebell swing protocol. Sixteen resistance and kettlebell swing experienced males performed 10 rounds of a kettlebell swing routine (where one round equates to 30s of swings followed by 30s of rest). Kinematic (i.e., swing duration and angular velocities) and kinetic (i.e., normalised sagittal plane ground reaction force, resultant joint moment [RJM] and power) variables were extracted for the early portion and late portion of the round. Average swing duration and the magnitude of normalised ground reaction forces (GRF) increased within rounds, while hip joint power decreased. Changes in swing duration were minimal, but consistent due to an increase in overall fatigue. An increase in the magnitude of GRF was observed at the end of rounds, which is a potential concern for injury. Hip joint power decreased primarily due to a slower angular velocity. This protocol may be an effective routine for those who are resistance trained with kettlebell swing experience, and who want to optimise power in their exercise program.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1013-1030"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9728345","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

Force requirement profiles for swing to strength hold elements on still rings in men´s artistic gymnastics. 男子艺术体操静止吊环上从摆动到力量保持元素的力要求曲线。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-02-28 DOI: 10.1080/14763141.2023.2185162

Christian Merz, Maurice Aarts, Thomas Lehmann, Alexander Seemann-Sinn, Arno Pluk, Falk Naundorf

{"title":"Force requirement profiles for swing to strength hold elements on still rings in men´s artistic gymnastics.","authors":"Christian Merz, Maurice Aarts, Thomas Lehmann, Alexander Seemann-Sinn, Arno Pluk, Falk Naundorf","doi":"10.1080/14763141.2023.2185162","DOIUrl":"10.1080/14763141.2023.2185162","url":null,"abstract":"Swing to strength hold elements are important for a top ranking on still rings, require a high level of upper body strength of the gymnasts and have not yet been scientifically investigated. Therefore, the aim of this study was to determine force requirement profiles for these elements using a dynamometric measuring system. Two force sensors attached to the cables of each ring and synchronised with video recorded the forces exerted by the gymnast. For eight swing to strength hold elements (Uprise backward to support scale straddled, Uprise backward to swallow, Uprise backward to cross, Honma to cross, Uprise backward to support scale, Kip to cross, Back kip to swallow and Uprise backward to inverted cross), the variables maximal force (Fmax), minimal force (Fmin), time over Fhold (t1-3), rate of maximal force development (RFD) and impulse (p) were analysed. Honma to cross shows the highest force requirements (Median: Fmax = 120.4% BW, Fmin = 109.8% BW, t1-3 = 882 ms, RFD = 143.93% BW/s, p = 9.85% BWs) whereas back kip to swallow shows the least (Fmax = 102.3% BW, RFD = 34.99% BW/s and p = 0.84% BW/s). The biomechanical demand profiles can be used to provide feedback to coaches and gymnasts. In future research, they should be extended with kinematic and electromyographic data.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"938-952"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10813975","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

Dorsiflexion shoes affect joint-level landing mechanics related to lower extremity injury risk in females. 背屈鞋影响与女性下肢损伤风险相关的关节水平着陆力学。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-03-22 DOI: 10.1080/14763141.2023.2191867

Gina L Garcia, Mia Caminita, Jessica G Hunter, Ross H Miller, Jae Kun Shim

{"title":"Dorsiflexion shoes affect joint-level landing mechanics related to lower extremity injury risk in females.","authors":"Gina L Garcia, Mia Caminita, Jessica G Hunter, Ross H Miller, Jae Kun Shim","doi":"10.1080/14763141.2023.2191867","DOIUrl":"10.1080/14763141.2023.2191867","url":null,"abstract":"Athletic shoes that induce dorsiflexion in standing can improve jump height compared to traditional athletic shoes that induce plantarflexion, but it is unknown if dorsiflexion shoes (DF) also affect landing biomechanics associated with lower extremity injury risk. Thus, the purpose of this study was to investigate if DF adversely affect landing mechanics related to patellofemoral pain and anterior cruciate ligament injury risk compared to neutral (NT) and plantarflexion (PF) shoes. Sixteen females (21.65 ± 4.7 years, 63.69 ± 14.3 kg, 1.60 ± 0.05 m) performed three maximum vertical countermovement jumps in DF (-1.5°), NT (0°) and PF (8°) shoes as 3D kinetics and kinematics were recorded. One-way repeated-measures ANOVAs revealed peak vertical ground reaction force, knee abduction moment and total energy absorption were similar between conditions. At the knee, peak flexion and joint displacement were lower in DF and NT, while relative energy absorption was greater in PF (all p < .01). Conversely, relative ankle energy absorption was greater in DF and NT compared to PF (p < .01). Both DF and NT induce landing patterns that may increase strain on passive structures in the knee, emphasising the need for landing mechanics to be considered when testing footwear as gains in performance could come at the cost of injury risk.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"970-984"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9159074","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

Wearable technology assessing running biomechanics and prospective running-related injuries in Active Duty Soldiers. 评估现役士兵跑步生物力学和预期跑步相关损伤的可穿戴技术。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-04-01 Epub Date: 2023-05-05 DOI: 10.1080/14763141.2023.2208568

Amy N Weart, Erin M Miller, Richard A Brindle, Kevin R Ford, Donald L Goss

{"title":"Wearable technology assessing running biomechanics and prospective running-related injuries in Active Duty Soldiers.","authors":"Amy N Weart, Erin M Miller, Richard A Brindle, Kevin R Ford, Donald L Goss","doi":"10.1080/14763141.2023.2208568","DOIUrl":"10.1080/14763141.2023.2208568","url":null,"abstract":"The purpose of this study was to determine if running biomechanical variables measured by wearable technology were prospectively associated with running injuries in Active Duty Soldiers. A total of 171 Soldiers wore a shoe pod that collected data on running foot strike pattern, step rate, step length and contact time for 6 weeks. Running-related injuries were determined by medical record review 12 months post-study enrollment. Differences in running biomechanics between injured and non-injured runners were compared using independent t-tests or ANCOVA for continuous variables and chi-square analyses for the association of categorical variables. Kaplan-Meier survival curves were used to estimate the time to a running-related injury. Risk factors were carried forward to estimate hazard ratios using Cox proportional hazard regression models. Forty-one participants (24%) sustained a running-related injury. Injured participants had a lower step rate than non-injured participants, but step rate did not have a significant effect on time to injury. Participants with the longest contact time were at a 2.25 times greater risk for a running-related injury; they were also relatively slower, heavier, and older. Concomitant with known demographic risk factors for injury, contact time may be an additional indicator of a running-related injury risk in Active Duty Soldiers.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1031-1047"},"PeriodicalIF":2.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9466857","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