Journal of Applied Biomechanics最新文献

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Joint-Specific Contributions to Vertical and Horizontal Center-of-Mass Velocity During a Sit-to-Stand Task Depend on Age. 在坐姿站立任务中,关节对垂直和水平质心速度的具体贡献取决于年龄。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-07-17 DOI: 10.1123/jab.2024-0249
Nayun Ahn, Cara L Lewis, Kristof Kipp
{"title":"Joint-Specific Contributions to Vertical and Horizontal Center-of-Mass Velocity During a Sit-to-Stand Task Depend on Age.","authors":"Nayun Ahn, Cara L Lewis, Kristof Kipp","doi":"10.1123/jab.2024-0249","DOIUrl":"https://doi.org/10.1123/jab.2024-0249","url":null,"abstract":"<p><p>This study aimed to compare the contributions of lower limb net joint moments (NJM) to the control of vertical and horizontal center-of-mass (COM) velocities during the momentum transfer and extension phases of the sit-to-stand (STS) task between healthy young and older adults. Eighteen young and 16 older adults performed STS 5 times at their self-selected speed. Kinematic and kinetic data were collected and used to calculate ankle, knee, and hip NJM. Induced acceleration analysis was used to identify the joint-specific functional roles and NJM contributions to the vertical and horizontal COM velocities during STS. The NJM at all 3 joints contributed to the upward velocity of the COM. The NJM contributions to the vertical COM velocity were greater in older adults compared to young adults during the momentum transfer phase, suggesting older adults may use a different COM control strategy in this direction. For horizontal velocity, knee NJM slowed forward COM motion, while the hip and ankle NJM sped up forward motion. The NJM contributions to the horizontal COM velocity were not influenced by age, which may suggest that healthy older adults retain the ability to control and regulate horizontal COM velocity to a greater extent than vertical COM velocity.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-7"},"PeriodicalIF":1.1,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144669024","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
Very High Movement Speed in a Hitting Action Affects Interjoint Coordination But Not Spatial Accuracy. 在击球动作中,非常高的移动速度会影响关节间的协调,但不会影响空间精度。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-07-07 DOI: 10.1123/jab.2024-0339
Victor Hugo Alves Okazaki, Luis Augusto Teixeira
{"title":"Very High Movement Speed in a Hitting Action Affects Interjoint Coordination But Not Spatial Accuracy.","authors":"Victor Hugo Alves Okazaki, Luis Augusto Teixeira","doi":"10.1123/jab.2024-0339","DOIUrl":"https://doi.org/10.1123/jab.2024-0339","url":null,"abstract":"<p><p>Performance of ballistic movements to drive a ball toward a spatial target in different sports requires high movement speed associated with spatial accuracy. In this investigation, we compared target hitting movements performed from very low to very high movement speeds with the purpose of assessing the effects on movement accuracy and variability. Participants were 16 young men, naive for the experimental task. The task consisted of sliding a handle over a flat surface to hit a moveable disc, with the aim of driving it toward a spatial target. Kinematic analysis indicated that the high and very high movement speeds induced the lowest peak and contact velocity variabilities of the handle displacement and elbow extension. Assessment of interjoint coordination between the shoulder, elbow, and wrist indicated higher relative phase values in very high speed compared with lower movement speeds. As the main outcome, we found no evidence for effects on either spatial accuracy or variability of the disk displacement toward the target due to increment of movement speed. Our findings support the conclusion that ballistic skills can be performed with high movement speeds while keeping spatial accuracy and variability unchanged.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-8"},"PeriodicalIF":1.1,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144585700","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
Muscle Synergies in Single-Leg Hops: Neuromuscular Adaptations for Increased Hop Distance. 单腿跳跃的肌肉协同作用:增加跳跃距离的神经肌肉适应。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-06-23 DOI: 10.1123/jab.2024-0132
Hiroki Saito, Ayu Yamano, Nanae Suzuki, Kazuya Matsushita, Hikaru Yokoyama, Joachim Van Cant, Kimitaka Nakazawa
{"title":"Muscle Synergies in Single-Leg Hops: Neuromuscular Adaptations for Increased Hop Distance.","authors":"Hiroki Saito, Ayu Yamano, Nanae Suzuki, Kazuya Matsushita, Hikaru Yokoyama, Joachim Van Cant, Kimitaka Nakazawa","doi":"10.1123/jab.2024-0132","DOIUrl":"https://doi.org/10.1123/jab.2024-0132","url":null,"abstract":"<p><p>This study investigated differences in muscle synergies in the trunk and lower limbs during single-leg hops at 30% (SLH30) and 100% (SLH100) of maximum distance to understand the neuromechanical mechanisms underlying longer hop distances. Unilateral surface EMG data were collected from 16 muscle groups in the trunk and lower limbs during both SLH30 and SLH100 in 10 healthy males. Nonnegative matrix factorization was used to extract muscle synergies. The number of muscle synergies in SLH100 was significantly higher than in SLH30 (P = .0078, effect size = 1.28), with median values of 4.0 (3.0-5.0) for SLH30 and 5.0 (4.0-6.0) for SLH100. We identified 4 shared muscle synergies between SLH30 and SLH100, signifying a foundational neuromuscular control strategy. In addition, muscle synergies specific to SLH100 demonstrated the involvement of abdominal muscles and hip and ankle extensor muscles, highlighting their contributions to achieving longer hopping distances. Interventions aimed at enhancing SLH performance for return to sport may benefit from incorporating exercises targeting these synergy patterns. However, it should be noted that SLH100 synergies primarily involved nonknee muscles, warranting caution when using SLH as an indicator of knee function as improvements in hop distance may not directly reflect knee-specific recovery.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-9"},"PeriodicalIF":1.1,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144477936","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
Prediction of Medial Tibiofemoral Joint Reaction Force Using Custom Instrumented Insoles and Neural Networks for Walking and Running Tasks. 使用定制仪器鞋垫和神经网络预测内侧胫股关节反作用力用于行走和跑步任务。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-06-23 DOI: 10.1123/jab.2024-0181
Samantha J Snyder, Hyunji Lee, Edward Chu, Yun Jung Heo, Ross H Miller, Jae Kun Shim
{"title":"Prediction of Medial Tibiofemoral Joint Reaction Force Using Custom Instrumented Insoles and Neural Networks for Walking and Running Tasks.","authors":"Samantha J Snyder, Hyunji Lee, Edward Chu, Yun Jung Heo, Ross H Miller, Jae Kun Shim","doi":"10.1123/jab.2024-0181","DOIUrl":"https://doi.org/10.1123/jab.2024-0181","url":null,"abstract":"<p><p>Medial tibiofemoral joint reaction force is a clinically relevant variable for knee osteoarthritis progression and can be estimated using complex musculoskeletal models. Musculoskeletal model estimation of this variable is time-consuming, expensive, requires trained researchers, and is restricted to lab settings. We aimed to simplify the measurement of the medial knee joint contact force during walking and running using custom instrumented insoles and deep learning methods. Motion capture, force plate, and insoles instrumented with triaxial piezoresistive force sensors recorded data while 9 young healthy female individuals walked and ran at varying speeds. Two task-specific convolutional neural networks were developed for walking and running using piezoresistive force sensors as inputs during the stance phase. Results showed that both models were able to estimate total medial joint contact force with strong correlation coefficients (r > .98) and moderate mean absolute error (<0.36 body weight). These methods show the possibility of collecting medial knee joint contact force during walking and running in a clinical setting. Future research with this framework can be used to provide biofeedback to reduce medial knee joint contact force in high-risk knee osteoarthritis groups in clinical settings and daily life.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-7"},"PeriodicalIF":1.1,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144477937","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
Lower Limb Stiffness During a Loaded Walk and Run Over Different Surfaces. 负重行走和在不同表面上跑步时下肢僵硬度。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-06-11 DOI: 10.1123/jab.2024-0174
Tyler N Brown, Eric B Francis, Abigail C Aultz
{"title":"Lower Limb Stiffness During a Loaded Walk and Run Over Different Surfaces.","authors":"Tyler N Brown, Eric B Francis, Abigail C Aultz","doi":"10.1123/jab.2024-0174","DOIUrl":"10.1123/jab.2024-0174","url":null,"abstract":"<p><p>This study quantified vertical ground reaction forces (vGRFs) and lower limb stiffness for both sexes walking and running with body-borne load over 2 surfaces. Nine males and 9 females had lower limb biomechanics quantified during a walk (1.3 m/s) and run (4.5 m/s) with (15 kg) and without (0 kg) body-borne load over a firm and soft foam surface. vGRF measures, and leg and lower limb joint stiffness were submitted to a linear mixed model. Loaded walking increased very GRF and stiffness measure (all: P < .016). Loaded running increased every GRF measure and knee stiffness (all: P < .033). The foam surface increased peak vGRF (P = .002, P = .010) and knee stiffness (P < .001, P = .004) during the walk and run, and leg (P < .001) and ankle (P = .025) stiffness during the run. Males walked with greater peak vGRF (P = .012), and stiffer hip and ankle (P = .026; P = .012), but ran with a stiffer knee on the foam (P = .041) and stiffer hip on the firm (P = .005) surface than females. Loaded walking and running may elevate injury risk by increasing vertical GRFs and lower limb stiffness. Injury risk may also increase for locomotion over a foam surface, especially for males.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-11"},"PeriodicalIF":1.1,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334517","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
Acute Effects of High-Intensity Interval Running on Plantar Fascia Thickness and Stiffness in Healthy Adults. 高强度间歇跑步对健康成人足底筋膜厚度和硬度的急性影响。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-06-09 DOI: 10.1123/jab.2025-0043
Lukas Krumpl, Nathan R Schiele, Dale Cannavan, Lindsay W Larkins, Ann F Brown, Joshua P Bailey
{"title":"Acute Effects of High-Intensity Interval Running on Plantar Fascia Thickness and Stiffness in Healthy Adults.","authors":"Lukas Krumpl, Nathan R Schiele, Dale Cannavan, Lindsay W Larkins, Ann F Brown, Joshua P Bailey","doi":"10.1123/jab.2025-0043","DOIUrl":"10.1123/jab.2025-0043","url":null,"abstract":"<p><p>Plantar fascia (PF) thickness and stiffness have been linked diagnostically to plantar fasciitis. Acute changes to these properties in response to submaximal running have been noted but not yet tested in maximal effort bouts. This study assessed the acute effects of high-intensity interval running on PF thickness and stiffness in healthy adults. Sixteen participants completed 5 maximal effort 400-m sprints with a 1:1 work-to-rest ratio, followed by additional maximal effort trials until fatigue. Thickness and stiffness at the calcaneal origin were measured prerun, postrun, and 30 minutes postrun via ultrasonography and shear wave elastography, respectively. PF thickness and stiffness did not differ between right and left foot (P > .05) and between males and females (P = .067). Thickness and stiffness decreased postrun (0.43 mm, P < .001; 1.54 m·s-1, P < .001) and increased 30 minutes postrun (0.28 mm, P < .002; 1.0 m·s-1, P < .001). No significant difference was found between prerun and 30 minutes postrun thickness (P = .134), but prerun stiffness was higher than 30 minutes postrun (P = .031). These findings indicate that although high-intensity interval running altered both PF thickness and stiffness, 30 minutes of rest allowed some level of recovery in the noninjured PF tissue.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"1-5"},"PeriodicalIF":1.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144334515","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
Erratum. Muscle Torque-Velocity Relationships and Fatigue With Reduced Knee Joint Range of Motion in Young and Older Adults. 勘误表。肌肉扭矩-速度关系和疲劳与减少膝关节活动范围在年轻人和老年人。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-02-24 Print Date: 2025-04-01 DOI: 10.1123/jab.2025-0045
{"title":"Erratum. Muscle Torque-Velocity Relationships and Fatigue With Reduced Knee Joint Range of Motion in Young and Older Adults.","authors":"","doi":"10.1123/jab.2025-0045","DOIUrl":"10.1123/jab.2025-0045","url":null,"abstract":"","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"191"},"PeriodicalIF":1.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143494964","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
Repeatability of Vertical Ground Reaction Force Estimation During Running on the Athletics Track on 3 Different Days. 3 个不同日期在田径跑道上跑步时垂直地面反作用力估算的重复性。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-02-20 Print Date: 2025-04-01 DOI: 10.1123/jab.2024-0126
Bouke L Scheltinga, Jaap H Buurke, Joost N Kok, Jasper Reenalda
{"title":"Repeatability of Vertical Ground Reaction Force Estimation During Running on the Athletics Track on 3 Different Days.","authors":"Bouke L Scheltinga, Jaap H Buurke, Joost N Kok, Jasper Reenalda","doi":"10.1123/jab.2024-0126","DOIUrl":"10.1123/jab.2024-0126","url":null,"abstract":"<p><p>To increase understanding in development of running injuries, the biomechanical load over time should be studied. Ground reaction force (GRF) is an important parameter for biomechanical analyses and is typically measured in a controlled lab environment. GRF can be estimated outdoors, however, the repeatability of this estimation is unknown. Repeatability is a crucial aspect if a measurement is repeated over prolonged periods of time. This study investigates the repeatability of a GRF estimation algorithm using inertial measurement units during outdoor running. Twelve well-trained participants completed 3 running sessions on different days, on an athletics track, instrumented with inertial measurement units on the lower legs and pelvis. Vertical accelerations were used to estimate the GRF. The goal was to assess the algorithm's repeatability across 3 sessions in a real-world setting, aiming to bridge the gap between laboratory and outdoor measurements. Results showed a good level of repeatability, with an intraclass correlation coefficient (2, k) of .86 for peak GRF, root mean square error of .08 times body weight (3.5%) and Pearson correlation coefficients exceeding .99 between the days. This is the first study looking into the day-to-day repeatability of the estimation of GRF, showing the potential to use this algorithm daily.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"167-178"},"PeriodicalIF":1.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143469931","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 Randomized Crossover Trial on the Effects of Cadence on Calf Raise Test Outcomes: Cadence Does Matter. 一项关于节奏对抬腿试验结果影响的随机交叉试验:节奏确实重要。
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-02-18 Print Date: 2025-04-01 DOI: 10.1123/jab.2024-0104
Kim Hébert-Losier, Ma Roxanne Fernandez, Josie Athens, Masayoshi Kubo, Seth O'Neill
{"title":"A Randomized Crossover Trial on the Effects of Cadence on Calf Raise Test Outcomes: Cadence Does Matter.","authors":"Kim Hébert-Losier, Ma Roxanne Fernandez, Josie Athens, Masayoshi Kubo, Seth O'Neill","doi":"10.1123/jab.2024-0104","DOIUrl":"10.1123/jab.2024-0104","url":null,"abstract":"<p><p>The calf raise test (CRT) is commonly used to assess triceps surae muscle-tendon unit function. Often, a metronome set to 60 beats/min (30 repetitions/min) is used to set the cadence of calf raise repetitions, but studies report using cadences ranging from 30 to 120 beats/min. We investigated the effect of cadence on CRT outcomes, accounting for the potential confounders of sex, age, body mass index, and physical activity. Thirty-six healthy individuals (50% female) performed single-leg calf raise repetitions to volitional exhaustion in 3 randomized cadence conditions, 7 days apart: 30, 60, and 120 beats/min. Repetitions, total vertical displacement, total work, peak height, and peak power were recorded using the validated Calf Raise application. Cadence significantly affected all CRT outcomes (P ≤ .008), except repetitions (P = .200). Post hoc analysis revealed 60 beats/min resulted in significantly greater total vertical displacement and work than 30 and 120 beats/min. Peak height was greater at 60 and 120 than 30 beats/min, and peak power was greater at 120 beats/min. Males generated greater work and peak power (P ≤ .001), whereas individuals with greater body mass index completed less repetitions (P = .008), achieved lower total vertical displacements (P = .003), and generated greater peak power (P = .005). CRT cadence is important to consider when interpreting CRT outcomes and comparing data between studies.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"179-188"},"PeriodicalIF":1.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143459922","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
How Does Push-Off Distance Influence Force-Velocity Profile and Performance During Vertical Jumping? 起跳距离如何影响垂直跳跃的力-速度分布和表现?
IF 1.1 4区 医学
Journal of Applied Biomechanics Pub Date : 2025-02-14 Print Date: 2025-04-01 DOI: 10.1123/jab.2024-0194
Félicie Pommerell, Sébastien Boyas, Pierre Samozino, Baptiste Morel, Jérémie Begue, Abderrahmane Rahmani, Nicolas Peyrot
{"title":"How Does Push-Off Distance Influence Force-Velocity Profile and Performance During Vertical Jumping?","authors":"Félicie Pommerell, Sébastien Boyas, Pierre Samozino, Baptiste Morel, Jérémie Begue, Abderrahmane Rahmani, Nicolas Peyrot","doi":"10.1123/jab.2024-0194","DOIUrl":"10.1123/jab.2024-0194","url":null,"abstract":"<p><p>In many sports, practitioners must reach their maximal jump height (hmax) under time constraints. This requires a reduction of the countermovement depth and so of the push-off distance (hPO). The purpose of this study was to investigate how hPO influences force-velocity (F-v) profiles (F¯0, v¯0, P¯max, and SFv) and performance. Eleven participants (age: 26 [5] y, height: 175.6 [11.2] cm, mass: 76 [15] kg; squat 1RM: 129 [34] kg) performed maximal countermovement jumps. Kinetic and kinematic measurements were used to assess individual F-v profiles for 3 different hPO conditions (hPO-SMALL, hPO-MEDIUM, hPO-LARGE) from countermovement jumps performed under different load conditions (bodyweight [BW], BW + 8 kg, BW + 17 kg, BW + 40%1RM, BW + 70%1RM). Results indicated that F¯0 and P¯max changed across hPO conditions, while v¯0 remained constant. A lower hPO led to a significantly higher F¯0 and P¯max. These changes resulted in a steeper SFv leading to a more force-oriented profile, a lower optimal SFv and a greater F-v imbalance. Reducing hPO and modifying F-v profile led, to some extent, to a reduction in hmax. Performance is a compromise between hPO, P¯max, and F-v imbalance, all influenced by countermovement depth. This explains why reducing countermovement depth to meet time constraint may lower performance.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"161-166"},"PeriodicalIF":1.1,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143426822","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
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