Sports Biomechanics最新文献_第2页

Evaluation of head kinematics experienced during common skill progression pathways in Women's Artistic Gymnastics. 评价在女子艺术体操常见的技术进步路径中头部的运动学经验。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-03-26 DOI: 10.1080/14763141.2025.2481154

N Stewart Pritchard, Kambrie M Brandt, Alexandra G Peluso, David W Kruse, Elspeth Hart, Heather P Carr, Garrett S Bullock, Christopher M Miles, Justin B Moore, Joel D Stitzel, Jillian E Urban

{"title":"Evaluation of head kinematics experienced during common skill progression pathways in Women's Artistic Gymnastics.","authors":"N Stewart Pritchard, Kambrie M Brandt, Alexandra G Peluso, David W Kruse, Elspeth Hart, Heather P Carr, Garrett S Bullock, Christopher M Miles, Justin B Moore, Joel D Stitzel, Jillian E Urban","doi":"10.1080/14763141.2025.2481154","DOIUrl":"10.1080/14763141.2025.2481154","url":null,"abstract":"This study aimed to evaluate head kinematics experienced during skill progression pathways in Women's Artistic Gymnastics to inform post-concussion return to gymnastics protocols. A return to gymnastics framework, consisting of seven skill progression pathways, was developed. Twelve gymnasts were instrumented with mouthpiece sensors and performed two trials of each skill, if able. Sensors recorded data at 100 Hz and skill segments were extracted using time-synchronised video. Peak resultant linear (PLA) and rotational acceleration (PRA), rotational velocity change index (ΔRV) and peak resultant rotational velocity (PRV) of 1 Hz low pass filtered data were computed from skills. A mixed effects model evaluated differences in kinematic metrics across skills within pathways while adjusting for random effects of the participant. Stepwise increases in kinematic metrics occurred along backward and forward tumbling (floor) pathways but did not occur in other pathways. For instance, gymnasts experienced greater PLA and PRV during clear hip and back hip circle compared to giant. Moreover, skills performed early along respective pathways (e.g, Yurchenko timer (to back), Tsukahara timer (to back), handstand forward roll) were among the skills with the greatest PRA and ΔRV. Head kinematics associated with skill performance should be considered when developing return to gymnastics protocols.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2571-2591"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12353394/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143711901","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

Mean stability and between-session reliability of cycling biomechanics variables in elite pursuit cyclists. 精锐追逐赛自行车运动员生物力学变量的平均稳定性和节间可靠性。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-03-03 DOI: 10.1080/14763141.2025.2471805

Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H Faulkner, Francesca d'Andrea, Jon Wheat

{"title":"Mean stability and between-session reliability of cycling biomechanics variables in elite pursuit cyclists.","authors":"Daniel Williams, Marcus Dunn, Paul Worsfold, Deborah Newton, Steve H Faulkner, Francesca d'Andrea, Jon Wheat","doi":"10.1080/14763141.2025.2471805","DOIUrl":"10.1080/14763141.2025.2471805","url":null,"abstract":"The purpose of this study was to determine the number of crank revolutions required to obtain stable mean values of sagittal plane biomechanics variables, and the between-session reliability of these variables, whilst cyclists used an aerodynamic position. Eighteen elite cyclists completed a 3-min maximal bout on a cycling ergometer. Lower-limb kinematic and kinetic data were captured using 2D motion capture and force pedals. Raw data were filtered using a 4th order Butterworth low-pass filter (6 hz) and interpolated to 100 points per revolution. The middle 60 revolutions of each trial were extracted and 37 discrete and 15 time-series variables were calculated. Mean stability was assessed in all participants, and between-session reliability was analysed in a subset of 11 participants. Sequential averaging indicated more revolutions to stability than iterative intra-class correlation coefficients. Crank kinetics were more stable than joint kinematics and kinetics. For stable discrete and time-series variables, 30 and 38 revolutions are recommended, respectively. Between-day reliability for all variables was moderate to excellent, and good to excellent for crank kinetics and joint kinematics variables. Hip flexion-extension and ankle dorsiflexion kinetics were least reliable. Researchers and applied practitioners should consider these findings when planning, and interpreting results from, cycling biomechanics interventions.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2519-2539"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143537609","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

Assessment of shoulder joint and muscle characteristics side-asymmetry in professional padel players. 职业乒乓运动员肩关节及肌肉特征的侧面不对称评价。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-02-24 DOI: 10.1080/14763141.2025.2468320

Heinrich Leon Souza Viera, Tiago Dutra Leite-Nunes, Lucas Gidiel-Machado, Lorenzo Iop Laporta, Luiz Fernando Freire Royes, Michele Forgiarini Saccol, Fábio Juner Lanferdini

{"title":"Assessment of shoulder joint and muscle characteristics side-asymmetry in professional padel players.","authors":"Heinrich Leon Souza Viera, Tiago Dutra Leite-Nunes, Lucas Gidiel-Machado, Lorenzo Iop Laporta, Luiz Fernando Freire Royes, Michele Forgiarini Saccol, Fábio Juner Lanferdini","doi":"10.1080/14763141.2025.2468320","DOIUrl":"10.1080/14763141.2025.2468320","url":null,"abstract":"Padel is a worldwide racket sport that is growing each year. The unilateral upper limb repetitive movements of this sport may lead to shoulder structural and functional adaptations, which may alter muscle mechanics, however evidence is limited. We aimed to investigate if there is morphological, mechanical and functional shoulder symmetry between upper limbs of professional padel players. Fourthteen (7♂ and 7♀) professional Brazilian padel players were evaluated at supraspinatus muscle thickness (MT), stiffness, shoulder rotation range of motion (ROM), shoulder internal and external rotation peak torques and their ratios (ER/IR) and fatigue index torque. Subsequently, were compared all variables between dominant and non-dominant sides (α = 0.05). Total work, IR and ER absolute and normalised torque were higher in the dominant limb (p < 0.05). Moreover, 78% and 64% of the athletes presented reduced ER/IR peak torque ratio values in the dominant and non-dominant upper limb, respectively. No differences in supraspinatus MT, stiffness and shoulder ROM were found. Our study found that Brazilian professional padel players have asymmetrical shoulder ER/IR peak torques ratio. Therefore, it's recommended for padel players to strengthen the ER of the dominant shoulder and both IR and ER of the non-dominant shoulder to address side-asymmetry and reduced ER peak torques.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2481-2497"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143484557","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 ankle joint biomechanics and foot postures on Achilles tendon force during running through a simulation study. 通过模拟研究踝关节生物力学和足部姿势对跑步时跟腱力的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-05-30 DOI: 10.1080/14763141.2025.2511758

Tomoya Takabayashi, Mutsuaki Edama, Takuma Inai, Masayoshi Kubo

{"title":"Effects of ankle joint biomechanics and foot postures on Achilles tendon force during running through a simulation study.","authors":"Tomoya Takabayashi, Mutsuaki Edama, Takuma Inai, Masayoshi Kubo","doi":"10.1080/14763141.2025.2511758","DOIUrl":"10.1080/14763141.2025.2511758","url":null,"abstract":"Achilles tendinopathy is a prevalent injury observed among runners. Achilles tendon force (ATF) and differences in foot posture are considered factors in the occurrence of Achilles tendinopathy. This study was conducted using computer simulations. The simulation ranges were determined for the ankle joint angle (-25° to + 25°) and plantarflexion moment (0-160 Nm) at variable running speeds using a public dataset. The ankle angle was used to compute the Achilles tendon moment arm. Moment arms specific to the normal foot, pes cavus, and pes planus were calculated using radiographs from a previous study. Finally, the plantarflexion moment was divided into moment arms to obtain the ATF. For all foot postures, the ATF increased as the ankle dorsiflexion angle and plantarflexion moment increased. At most ankle angles, the ATF was found to be higher value in the order of pes cavus, normal foot, and pes planus. Increasing dorsiflexion angles and plantarflexion moments during running may lead to the occurrence or worsening of Achilles tendon tendinopathy. Additionally, individuals with pes cavus are more likely to develop Achilles tendinopathy than those with other foot postures.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2722-2732"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188387","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

Influence of lower limb asymmetry on the two-handed backhand stroke in female tennis players. 下肢不对称对女子网球运动员双手反手击球的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-06-13 DOI: 10.1080/14763141.2025.2511762

Kai-Lung Chang, Wen-Tzu Tang, Mu-Lin Tai, Duane V Knudson, Tsung-Yu Huang

{"title":"Influence of lower limb asymmetry on the two-handed backhand stroke in female tennis players.","authors":"Kai-Lung Chang, Wen-Tzu Tang, Mu-Lin Tai, Duane V Knudson, Tsung-Yu Huang","doi":"10.1080/14763141.2025.2511762","DOIUrl":"10.1080/14763141.2025.2511762","url":null,"abstract":"This study explored the influence of lower limb asymmetry on the kinematic characteristics of the tennis two-handed backhand (2HB) stroke in skilled female players. It included 14 right-handed tennis players. Lower limb symmetry was assessed using the hurdle step test (HDS) from the Functional Movement Screen (FMS™). Based on the results, participants were divided into two groups: eight in the symmetric (SYM) group and six in the asymmetric (ASYM) group. Motion capture cameras recorded both groups performing backhand strokes. Data were analysed to measure linear and angular displacement of the trunk and lower limb segments throughout the preparation, acceleration, and follow-through phases. Differences in selected mean kinematics were assessed using independent t-tests. The ASYM group demonstrated a less closed stance in the initial backswing, less linear movement towards the left, and greater dependence on internal rotation of the left hip during acceleration The ankle having greater external rotation, resulted in more leg twist. The ASYM group also exhibited a greater forward lean at impact, with the follow-through characterised by continued forward lean, and greater leftward movement of both the trunk and lower limbs. SYM and ASYM grouping resulted in 11 significant mean differences in 2HB kinematics. Lower extremity symmetry assessed in the HDS task in skilled female tennis players may be an indicator of trunk, pelvis, and lower extremity technique in the 2HB.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2733-2749"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144286937","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 selected features of advanced footwear technology on lower limb joint work. 先进鞋类技术对下肢关节工作的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-05-26 DOI: 10.1080/14763141.2025.2508244

Ashna Ghanbari, Jordyn Vienneau, Sandro R Nigg, Benno M Nigg

{"title":"Effects of selected features of advanced footwear technology on lower limb joint work.","authors":"Ashna Ghanbari, Jordyn Vienneau, Sandro R Nigg, Benno M Nigg","doi":"10.1080/14763141.2025.2508244","DOIUrl":"10.1080/14763141.2025.2508244","url":null,"abstract":"The objective of this study was to isolate the effects of two key components of Advanced Footwear Technology, the curved carbon fibre plate and the midsole material, on lower-limb joint work. Sixteen male recreational runners ran overground at a speed of 3.9 (±5%) metres per second in three shoe conditions: a standard Nike Vaporfly 4% (Original VP4), a modified version without the curved carbon fibre plate (No Plate) and a version with the PEBA midsole material replaced with EVA foam (EVA). Motion capture and force platform data were recorded to determine positive and negative metatarsophalangeal, ankle, knee, and hip joint work, and positive and negative foot + footwear work across the different conditions. Removing the carbon fibre plate significantly increased negative work at the metatarsophalangeal joint and positive work at the ankle. Replacing PEBA with EVA significantly reduced positive foot + footwear work. The findings of this study highlighted a group effect of the curved carbon fibre plate, which redistributed positive lower-limb joint work from the ankle to the metatarsophalangeal joint. Conversely, the results highlighted subject-specific differences in response to the midsole material, emphasising the importance of considering individual variability in footwear design elements to optimise athletic performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2707-2721"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144151740","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

Relationship between maximal jumping height in pole vault and the approach-run velocity evaluated by digitising method or laser method. 用数字化法和激光法评价了撑杆跳高最大起跳高度与助跑速度的关系。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-04-04 DOI: 10.1080/14763141.2025.2486095

F Kobayashi, A Noro, S Hatakeyama, Y Shinohara, M Otsuka

{"title":"Relationship between maximal jumping height in pole vault and the approach-run velocity evaluated by digitising method or laser method.","authors":"F Kobayashi, A Noro, S Hatakeyama, Y Shinohara, M Otsuka","doi":"10.1080/14763141.2025.2486095","DOIUrl":"10.1080/14763141.2025.2486095","url":null,"abstract":"The first objective was to validate various approach-run velocities obtained using body-only method (digitising only the athlete's body) or laser method (using a laser displacement metre) against the whole-system method (digitising both the athlete's body and pole) during pole vaulting. The second objective of this study was to clarify the relationship between the approach-run velocity obtained by different three methods and the maximal height of the athlete's centre of mass (COM) during the clearance. Eighteen male athletes performed 96 pole-vaulting attempts in outdoor competitions. Bland-Altman plots indicated that only the peak approach-run velocity obtained by the body-only method had negligible bias, while other parameters obtained by body-only digitising and laser methods contained several errors. Since such bias could cause problems, using conventional digitising and laser methods requires careful handling. The association between maximal COM height during the clearance and peak approach-run velocity was extremely large for all three methods. In contrast, although the relationship between the maximal COM height and the decrease in approach-run velocity was large for both digitising methods, it was weakened for laser method. Consequently, based on the approach-run velocity parameters, different calculation methods for approach-run velocity parameters resulted in varying relationships with jumping performance.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2631-2646"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143780226","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 adjustments during an exhaustive treadmill run: comparison of compression tights and running shorts. 在一个详尽的跑步机上的生物力学调整：压缩紧身衣和跑步短裤的比较。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-05-22 DOI: 10.1080/14763141.2025.2508241

Barbara J Schornstein, Meredith D Wells, D Clark Dickin, Lisa S Jutte, Henry Wang

{"title":"Biomechanical adjustments during an exhaustive treadmill run: comparison of compression tights and running shorts.","authors":"Barbara J Schornstein, Meredith D Wells, D Clark Dickin, Lisa S Jutte, Henry Wang","doi":"10.1080/14763141.2025.2508241","DOIUrl":"10.1080/14763141.2025.2508241","url":null,"abstract":"Fatigue induces changes to running form resulting in movements that are less efficient. Reducing the amount of fatigue and its subsequent effect on form is valuable for improving running performance. It is unknown what effects compressive clothing has on musculature; however, there have been claims that it may reduce fatigue. The aim of this study was to determine whether compressive tights or running shorts are more beneficial for improving performance when running to exhaustion. Eleven runners ran at their current five-kilometre race pace on a treadmill to voluntary exhaustion in a repeated measures design wearing both compression tights and running shorts while their biomechanics, heart rate and rate of perceived exertion were recorded. Fatigue effects showed a less extended knee angle (p = 0.03) and a smaller ankle dorsiflexion angle (p = 0.04) at initial contact, and increased loading rate (p = 0.02) and vertical impact peak (p = 0.05). Condition effects included a shorter stride length (p = 0.01), faster stride rate (p = 0.01), and decreased hip range of motion (p = 0.02) with compression tights. There was no significant difference in time to exhaustion between conditions (p = 0.88). Thus, the length of time to fatigue was unaffected by condition, however, the altered mechanics when running in compression tights may reduce potential injury.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2696-2706"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144129140","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 sex, skill level and a defender on cutting kinematics in soccer players. 性别、技术水平和防守队员对足球运动员切球运动学的影响。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-03-25 DOI: 10.1080/14763141.2025.2481496

Karen Chen, Harry Brown, Sophie Guilmette, Moreno Morelli, Anouk Lamontagne, Shawn M Robbins

{"title":"The effect of sex, skill level and a defender on cutting kinematics in soccer players.","authors":"Karen Chen, Harry Brown, Sophie Guilmette, Moreno Morelli, Anouk Lamontagne, Shawn M Robbins","doi":"10.1080/14763141.2025.2481496","DOIUrl":"10.1080/14763141.2025.2481496","url":null,"abstract":"Cutting patterns may be influenced by task complexity and player attributes, ultimately affecting injury risks. This study examines the impact of skill level, sex, and defender conditions on joint kinematics during unanticipated cutting in soccer players. Kinematic data were captured using a three-dimensional motion capture system for 14 competitive and 14 recreational players performing unanticipated sidesteps (45 ± 10 degrees) under three conditions: no obstacle (NO), static-defender obstacle (SO) and dynamic-defender obstacle (DO). Principal component (PC) analysis and hierarchical linear models examined joint kinematics against sex, skill and defender conditions. For the first component of PC, skill effects revealed greater ankle dorsiflexion angles throughout cutting in competitive players (p = 0.01) than recreational players. DO trials showed lower hip flexion (p = 0.001) and ankle dorsiflexion angles (p = 0.01) than NO. SO trials showed greater hip adduction (p < 0.001) and knee abduction angles (p = 0.04), but lower ankle dorsiflexion angles (p < 0.001) than NO. For PC2, SO trials showed greater hip flexion excursions (p = 0.005) than NO. No sex effects were found. Clearance (participant's distance to the defender) was examined using a three-way analysis of covariance. Greater distances were found in DO by 0.59 m than SO. Differences in cutting patterns highlight potential adaptations to varying defender pressures, providing insights for coaching and prevention programmes.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2592-2609"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143701865","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

Training alters joint power distributions during running in National Football League Draft Preparation Players. 训练改变了国家橄榄球联盟选秀准备球员跑步时的联合力量分配。

IF 2 3区医学

Sports Biomechanics Pub Date : 2025-09-01 Epub Date: 2025-05-02 DOI: 10.1080/14763141.2025.2498338

G Monique Mokha, Marissa Bonsangue, ToniAnn Brezina, Jacob Haberer

{"title":"Training alters joint power distributions during running in National Football League Draft Preparation Players.","authors":"G Monique Mokha, Marissa Bonsangue, ToniAnn Brezina, Jacob Haberer","doi":"10.1080/14763141.2025.2498338","DOIUrl":"10.1080/14763141.2025.2498338","url":null,"abstract":"The aim of this study was to compare joint-specific contributions to total lower limb joint power during a speed run in American style football players before and after a 6-week National Football League (NFL) draft preparation camp. Fifty-two players performed one 5-second treadmill run at 5.5-6.5 m/s before and after camp. Speed was consistent between tests. Bilateral hip, knee, and ankle power generation (positive) and absorption (negative) were calculated from kinematics and kinetics using inverse dynamics. Negative total limb power decreased for both limbs, significantly for the left (Z = -2.113, p = .035, r = .30) due to significant decreases in negative ankle power bilaterally (left, Z = -1.967, p = .049, r = .27; right, Z = -2.623, p = .009, r = .36). The contribution of negative left hip power significantly increased (Z = -2.398, p = .016, r = .31). While no other significant changes in positive or negative joint-specific magnitudes or contributions occurred, there were general distal-to-proximal shifts in joint power contributions. Players appear to have adopted more energy efficient running through moderate joint-specific mechanistic training adaptations such as a reduction in ankle power absorption.","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"2662-2679"},"PeriodicalIF":2.0,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042790","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