Sports BiomechanicsPub Date : 2025-07-01Epub Date: 2024-11-14DOI: 10.1080/14763141.2024.2427683
Miriam Alves, Tiago M Barbosa, João Paulo Vilas-Boas
{"title":"Variability of energy cost in breaststroke technique: a systematic review.","authors":"Miriam Alves, Tiago M Barbosa, João Paulo Vilas-Boas","doi":"10.1080/14763141.2024.2427683","DOIUrl":"10.1080/14763141.2024.2427683","url":null,"abstract":"<p><p>This study aimed to synthesise the body of knowledge on kinematics, active drag and energetics determinants of energy cost variability in the breaststroke technique. Methodological procedures considering the standards for systematic reviews according to the '\"Preferred Reporting Items for Systematic Reviews and Meta-Analyses\"' were employed. Searches were conducted in four prominent databases. A total of 1,464 articles were identified, of which 201 met the eligibility criteria. After evaluation, 73 articles were included for synthesis in this review. The included studies had a mean score (± SD) of 9.14 ± 1.76 points regarding the quality assessment. The present review identified three distinct domains of variables: kinematics (including stroke kinematics and coordination parameters), active drag, and energetics. The findings underscored the pivotal role of stroke kinematics, including stroke rate, stroke length, stroke index, and intra-cyclic variations of velocity, in influencing energy cost during breaststroke swimming. Additionally, the analysis highlighted the significance of propulsive and non-propulsive phases, arm-to-leg timing, and buoyancy in breaststroke technique. Notably, breaststroke exhibited higher values of active drag, frontal area, and energy cost, while maintaining lower velocity compared to other swimming techniques. Overall, this synthesis of literature highlights the holistic nature of energy cost in breaststroke swimming.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1803-1843"},"PeriodicalIF":2.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142630988","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}
Alberto Fílter, Jesús Olivares-Jabalera, Jose Vicente Beltrán-Garrido, Alfredo Santalla, Carlos Balsalobre-Fernández, Javier Gálvez, Blanca De-la-Cruz-Torres
{"title":"The My Jump Lab application is a valid and reliable low-cost alternative to test curved sprint performance.","authors":"Alberto Fílter, Jesús Olivares-Jabalera, Jose Vicente Beltrán-Garrido, Alfredo Santalla, Carlos Balsalobre-Fernández, Javier Gálvez, Blanca De-la-Cruz-Torres","doi":"10.1080/14763141.2025.2524344","DOIUrl":"https://doi.org/10.1080/14763141.2025.2524344","url":null,"abstract":"<p><p>Curved sprinting has been proposed as a relevant and specific skill for soccer players' physical performance. However, professional timing systems are not always readily available in less resource-constrained environments. To address this issue, the development of a low-cost and user-friendly smartphone application could have practical applications for team sports staffs. In this context, the objective of this study was to evaluate the validity and reliability of the My Jump Lab application for the measurement of the curved sprint performance test. Correlational, comparative, and Bland-Altman analyses were conducted to assess the validity and reliability of the application in comparison with the gold-standard device. The results demonstrated excellent concurrent validity (<i>r</i> = 0.97-0.99, <i>p</i> < 0.001), and acceptable reliability (coefficient of variation < 3%, intraclass correlation coefficient = 0.88-0.96). Bland-Altman plots revealed small biases (-0.015 s and -0.010 s for the 17-m and 8.5 m curved sprints, respectively) and narrow 95% limits of agreement (-0.04 to 0.01 s and -0.03 to 0.01 s), indicating string agreement and no heteroskedasticity. Although small but significant differences were observed between test and retest sessions (<i>p</i> < 0.05), the overall findings support that My Jump Lab is a valid and reliable tool for assessing completion time during the curved sprint test in the specified arc, offering a cost-effective alternative for applied sport settings.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-12"},"PeriodicalIF":2.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144530717","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}
Ana Luiza de Castro Lopes, Karine Jacon Sarro, Isabella Martins Rodrigues, Gustavo Ramos Dalla Bernardina, Filipe Antônio de Barros Sousa, Natália de Almeida Rodrigues, Carlo Massaroni, Emiliano Schena, Sergio Silvestri, Pietro Cerveri, Amanda Piaia Silvatti
{"title":"Thoracoabdominal breathing pattern across exercise intensity domains: performance level insights in cyclists.","authors":"Ana Luiza de Castro Lopes, Karine Jacon Sarro, Isabella Martins Rodrigues, Gustavo Ramos Dalla Bernardina, Filipe Antônio de Barros Sousa, Natália de Almeida Rodrigues, Carlo Massaroni, Emiliano Schena, Sergio Silvestri, Pietro Cerveri, Amanda Piaia Silvatti","doi":"10.1080/14763141.2025.2513474","DOIUrl":"https://doi.org/10.1080/14763141.2025.2513474","url":null,"abstract":"<p><p>Thoracoabdominal breathing pattern (THA) can be influenced by factors such as exercise intensity, postural demands, and individual variability, which could be associated with performance level. The present study aims to investigate the THA of cyclists with different performance levels during increasing exercise intensity. Fourteen male professional cyclists performed resting breathing manoeuvres and a step-incremental test on a cycle ergometer. Physiological responses were monitored using a metabolic gas analyser and were then classified into two groups: Higher and Lower <i>VO</i><sub>2max</sub>. THA was recorded with an optoelectronic system. The contribution to tidal volume and the coordination of three compartments, namely superior thorax (ST), inferior thorax (IT), and abdomen (AB), were calculated. Higher <i>VO</i><sub>2max</sub> group demonstrated a stable contribution across all intensity thresholds. Lower <i>VO</i><sub>2max</sub> group increased the AB contribution by approximately 9% at both ventilatory thresholds from the start, while the rib cage contribution (ST + IT) decreased by approximately 17% from quiet breathing to exercise (<i>p <</i> 0.005). Coordination between ST vs. AB and IT vs. AB showed significant differences, with the Lower <i>VO</i><sub>2max</sub> group demonstrating lower values and a greater effect size compared to the Higher V<i>O</i><sub>2max</sub> group (<i>p <</i> 0.005). The present study provides valuable insights into how athletes of different performance levels employ distinct patterns of THA.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-16"},"PeriodicalIF":2.0,"publicationDate":"2025-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144303383","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}
Isobel M Thompson, Dorian A G Audot, Martin B Warner, Joseph Banks, Oliver Logan, Dominic Hudson
{"title":"Error assessment of a three-dimensional underwater motion capture methodology.","authors":"Isobel M Thompson, Dorian A G Audot, Martin B Warner, Joseph Banks, Oliver Logan, Dominic Hudson","doi":"10.1080/14763141.2025.2514234","DOIUrl":"https://doi.org/10.1080/14763141.2025.2514234","url":null,"abstract":"<p><p>Motion analysis technology is used in various settings to assess human kinematics. Assessing human movement underwater presents many challenges, making it important to understand measurement error associated with the setup and calibration of the system ensuring accuracy in resulting kinematics. This study assessed the accuracy across the entire domain of a submerged motion capture methodology. Six Qualisys cameras created an underwater capture volume of 6.9 × 2.1 × 2.1 m<sup>3</sup>. Average error levels were acceptable in four uncertainty trials (<<math><mo>±</mo></math> 5 mm error). By selecting an area of interest that excluded areas with low accuracy near domain borders, measurement error reduced by up to 0.13 mm, up to 1.27 mm lower than outside this area. Interpolated error indicated that intracyclic measurement error may alter measured kinematics by up to 13.80 mm, with error greater than 5 mm affecting over 50% of the kick cycle. Investigating error levels across the domain can inform researchers whether a recalibration is necessary or help to identify areas where high error levels would affect kinematics. This study highlights the need to investigate error levels across a motion capture domain, particularly when this is a large volume, to ensure results obtained from investigations are reliable.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250546","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}
{"title":"Relationship between explosive lower limb strength and impact force during landing in healthy young individuals.","authors":"Kaisei Yamaki, Daijirou Kanai, Shigehito Matsubara, Takeshi Shimamura, Takasuke Miyazaki, Keita Honda","doi":"10.1080/14763141.2025.2514231","DOIUrl":"https://doi.org/10.1080/14763141.2025.2514231","url":null,"abstract":"<p><p>Excessive peak vertical ground reaction force (VGRF) during landing is a risk factor for anterior cruciate ligament injury. Identifying the physical characteristics associated with peak VGRF is essential for injury prevention. The relationship between peak VGRF and maximum voluntary contraction (MVC) of the thigh muscle is weak, possibly because MVC does not reflect the muscle strength exerted at the knee joint posture and timing when peak VGRF occurs. This study explored the relationship between peak VGRF during landing and the rate of torque development (RTD), a measure of the rapid generation of muscle force, assessed at three different knee joint flexion angles. RTD and MVC of the quadriceps and hamstrings were measured in 36 physically active adults (18 males) using an isokinetic dynamometer at 30° and 60° knee joint flexion angles, simulating the joint angle at landing, and at a conventional 90° knee joint flexion angle. Results showed a significant negative correlation between hamstring RTD at 30° knee flexion and peak VGRF (<i>r</i> = -0.71, <i>p</i> = 0.001), but no significant correlations were found with others. Therefore, it is important to assess muscle strength at the posture and timing when peak VGRF occurs to reduce peak VGRF and prevent injury.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-17"},"PeriodicalIF":2.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144250547","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}
Sian Reynolds, Joel Chidley, Simon Briley, Tom Outram
{"title":"The impact of minor crank length adjustments on lower body cycling kinematics.","authors":"Sian Reynolds, Joel Chidley, Simon Briley, Tom Outram","doi":"10.1080/14763141.2025.2511755","DOIUrl":"https://doi.org/10.1080/14763141.2025.2511755","url":null,"abstract":"<p><p>This study examined the effect of minor crank length adjustments on lower body cycling kinematics and exercise tolerance. Fourteen amateur cyclists performed sub-maximal cycling trials with five different crank lengths, preferred (165.0-172.5 mm), ±5 and 10 mm. An RPE prescription method determined intensity, and three-dimensional kinematics were collected using Vicon motion capture. Statistical parametric mapping was employed to analyse lower body kinematics. Changes in crank length had no effect on the mean power output (199.1 ± 50.5 W). However, minor reductions were associated with significant decreases in knee (0-24%; 58-100%) and hip (0-13%) flexion as well as increases in the anterior pelvic tilt (0-40%; 74-100%). Additionally, shorter cranks resulted in less pelvic obliquity and rotation, hip abduction and knee rotation. Minor reductions in crank length can decrease hip and knee flexion, can limit non-sagittal plane motion and could serve as an effective bike manipulation to reduce the risk of overuse injury. Shorter cranks also enable riders to achieve anterior pelvic tilt and could limit stress on the lumbar spine. As minor adjustments did not impact power output, crank length alterations should be considered during bike fits and by bike manufacturers.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1-14"},"PeriodicalIF":2.0,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144217373","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}
Sports BiomechanicsPub Date : 2025-06-01Epub Date: 2024-01-02DOI: 10.1080/14763141.2023.2296916
Emily S Matijevich, Eric C Honert, Fan Yang, Wing-Kai Lam, Benno M Nigg
{"title":"Greater foot and footwear mechanical work associated with less ankle joint work during running.","authors":"Emily S Matijevich, Eric C Honert, Fan Yang, Wing-Kai Lam, Benno M Nigg","doi":"10.1080/14763141.2023.2296916","DOIUrl":"10.1080/14763141.2023.2296916","url":null,"abstract":"<p><p>Footwear energy storage and return is often suggested as one explanation for metabolic energy savings when running in Advanced Athletic Footwear. However, there is no common understanding of how footwear energy storage and return facilitates changes in muscle and joint kinetics. The purpose of this study was to evaluate the magnitude and timing of foot, footwear and lower limb joint powers and work while running in Advanced and Traditional Athletic Footwear. Fifteen runners participated in an overground motion analysis study. Since footwear kinetics are methodologically challenging to quantify, we leveraged distal rearfoot power analyses ('foot + footwear' power) and evaluated changes in the <i>magnitude</i> and <i>timing</i> of foot + footwear power and lower limb joint powers. Running in Advanced Footwear resulted in greater foot + footwear work, compared to Traditional Shoes, and lower positive ankle work, potentially reducing the muscular demand on the runner. The timing of foot + footwear power varied only slightly across footwear. There are exciting innovation opportunities to manipulate the <i>timing</i> of footwear energy and return. This study demonstrates the research value of quantifying time-series foot + footwear power, and points industry developers towards footwear innovation opportunities.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1495-1513"},"PeriodicalIF":2.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139075676","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}
{"title":"The role of muscle function and <i>pointe</i> shoe characteristics in <i>Arabesque</i> movement among ballet dancers with non-specific low back pain.","authors":"Chia-Wei Lin, Cheng-Feng Lin, Amornthep Jankaew, Sirinad Chandee, Mayumi Kuno-Mizumura","doi":"10.1080/14763141.2024.2366209","DOIUrl":"10.1080/14763141.2024.2366209","url":null,"abstract":"<p><p>This study aimed to investigate posterior chain muscle function and the influence of <i>pointe</i> shoes in ballet dancers with and without low back pain (LBP) in the <i>Arabesque</i>. Twenty-nine young professional ballet dancers (17 with LBP and 12 healthy controls) were recruited. Muscle strength and mechanical properties of the erector spinae and hamstrings were assessed. The displacement of centre of mass (COM) during <i>Arabesque</i> under different shoe conditions (R-class, Chacott, and own shoes) was measured with a motion capture system. The LBP group exhibited greater dynamic stiffness and decreased mechanical stress relaxation time in the lateral hamstring compared to the control group. During <i>Arabesque</i>, the LBP group demonstrated significantly greater anterior-posterior displacement of the COM and a larger percentage of time to achieve maximal trunk extension angle. The COM displacement in vertical and medial-lateral directions was smaller in the R-class than in their own shoes. LBP impacts muscle mechanical properties, particularly in the lateral hamstring. The compromised muscle function resulted in a longer time to spinal extension during <i>Arabesque</i>, signifying that reduced trunk control contributed to greater COM displacement. Hence, it is essential to emphasise that evaluating muscle properties and dynamic postural control is imperative for dancers experiencing LBP.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1769-1787"},"PeriodicalIF":2.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141421558","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}
{"title":"Is isokinetic shoulder strength a determinant of serve ball velocity in tennis?","authors":"Cengiz Ölmez, Nadhir Hammami, Necdet Apaydın, Soukaina Hattabi, Halit Şar, Mehrzia Amani Khezami, Alparslan İnce","doi":"10.1080/14763141.2023.2300315","DOIUrl":"10.1080/14763141.2023.2300315","url":null,"abstract":"<p><p>The tennis serve is closely related to the quality of the tennis match. However, the isokinetic parameters associated with the tennis serve are still unclear. The aim of this study was to investigate the relationships between ball velocity and isokinetic shoulder strength in tennis serve and to determine isokinetic strength parameters that can predict tennis serve velocity. A total of 13 elite male athletes (16.8 ± 1.5 years) voluntarily participated in the study. The athletes' shoulder internal-external rotation, extension-flexion and abduction-adduction strengths were measured with 5-5-15 repetitions at 60°/s, 180°/s, 240°/s angular velocities. Later, the athletes' 1st, 2nd, and average serve ball speeds were determined using a handheld radar gun. Significant correlations were found between ball speed and isokinetic tennis serve strength (<i>r</i> = 0.556-0.819; <i>p</i> < 0.05). The correlations between ball speed and isokinetic strength performance were higher at 180°/s and 240°/s angular velocities. Extension (240°/s; <i>r</i> = 0.819), flexion (180°/s; <i>r</i> = 0.755), abduction (240°/s; <i>r</i> = 0.733), adduction (240°/s; <i>r</i> = 0.684) and internal rotation (180°/s; <i>r</i> = 0.803) were highly correlated with ball velocity. These findings suggest that strength training to increase the ball speed of the tennis serve should be performed fast at high angular velocities and planning should focus on the strength of extension, flexion, abduction, adduction and internal rotation.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1548-1561"},"PeriodicalIF":2.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139404964","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}
Sports BiomechanicsPub Date : 2025-06-01Epub Date: 2024-10-01DOI: 10.1080/14763141.2024.2367619
Pieter Van den Berghe, Sander De Bock, Bastiaan Breine, Nicolas Horvais, Allison Gruber, Joren Six, Pierre Samozino, Marc Leman, Jean-Benoît Morin, Dirk De Clercq, Marlène Giandolini
{"title":"Peak tibial accelerations in different foot strike patterns during level running: an independent investigation in different cohorts.","authors":"Pieter Van den Berghe, Sander De Bock, Bastiaan Breine, Nicolas Horvais, Allison Gruber, Joren Six, Pierre Samozino, Marc Leman, Jean-Benoît Morin, Dirk De Clercq, Marlène Giandolini","doi":"10.1080/14763141.2024.2367619","DOIUrl":"10.1080/14763141.2024.2367619","url":null,"abstract":"<p><p>Peak tibial accelerations are used to monitor impact severity during distance running and as input for bio-feedback. Here, peak tibial accelerations were compared between rearfoot and forefoot strikes. Two different studies were undertaken by independent research centres. Tibial acceleration and optical motion capture were collected in 14 rearfoot strikers who changed to a forefoot strike in the first centre. In the second centre, tibial acceleration of 14 other rearfoot strikers and nine forefoot strikers were collected and processed. In over-ground level running at a submaximal speed, the resultant peak tibial acceleration was greater in the instructed forefoot strike condition (Δ<math><mi>X</mi></math> = 7.6 ± 1.3 g, mean ± standard error difference) and in the habitual forefoot strikers (Δ<math><mover><mi>X</mi><mo>-</mo></mover></math> = 3.7 ± 1.1 g) than in the rearfoot strikers. The shank kinematics revealed a greater decrease in antero-posterior velocity following touchdown in the forefoot strike condition. The forefoot strikes experienced greater posterior tibial acceleration, which resulted in an increased resultant peak tibial acceleration that also occurred earlier than in the rearfoot strikes. No significant difference in axial peak tibial acceleration was found between these foot strike patterns. In conclusion, the foot strike pattern differently affects peak tibial accelerations in level running, which can have implications for monitoring and biofeedback applications.</p>","PeriodicalId":49482,"journal":{"name":"Sports Biomechanics","volume":" ","pages":"1788-1801"},"PeriodicalIF":2.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142331021","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}