Sports Engineering最新文献

Effect of water quality on ice hardness and skate-to-ice friction in ice rinks. 水质对溜冰场冰硬度和冰间摩擦的影响。

IF 1.4

Sports Engineering Pub Date : 2026-01-01 Epub Date: 2026-01-29 DOI: 10.1007/s12283-025-00538-z

Ryan H S Hutchins, Jiani Wang, Stefania Impellizzeri

{"title":"Effect of water quality on ice hardness and skate-to-ice friction in ice rinks.","authors":"Ryan H S Hutchins, Jiani Wang, Stefania Impellizzeri","doi":"10.1007/s12283-025-00538-z","DOIUrl":"10.1007/s12283-025-00538-z","url":null,"abstract":"Ice hardness and friction influence performance and safety in ice sports, yet the role of water quality remains poorly understood. This study examines how total dissolved solids in rink water affect ice characteristics using nondestructive hardness testing and a skate-to-ice static friction index measured under controlled rink conditions. Results show that temperature influences ice hardness and static friction, with colder ice being harder and exhibiting higher static friction. Water quality also plays a role, as lower total dissolved solid levels reduce static friction, with effects comparable to a 1[Formula: see text]C increase in ice temperature. However, ultra-pure water produced softer ice, while moderate total dissolved solid levels maintained ice hardness with minor static friction increases. These findings support hockey rink recommendations to maintain total dissolved solids near 80 to 100 ppm to balance ice hardness with friction performance. However, other sports, such as curling, may benefit from lower total dissolved solids for reduced static friction. Understanding these relationships informs best practices in rink maintenance and water treatment.Supplementary information: The online version contains supplementary material available at 10.1007/s12283-025-00538-z.","PeriodicalId":46387,"journal":{"name":"Sports Engineering","volume":"29 1","pages":"7"},"PeriodicalIF":1.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12855353/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146107615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning approaches for head pose estimation in sports impacts. 运动冲击中头部姿态估计的深度学习方法。

IF 1.4

Sports Engineering Pub Date : 2026-01-01 Epub Date: 2026-05-21 DOI: 10.1007/s12283-026-00552-9

Thomas Aston, Georgios Machtsiras, Filipe Teixeira-Dias

{"title":"Deep learning approaches for head pose estimation in sports impacts.","authors":"Thomas Aston, Georgios Machtsiras, Filipe Teixeira-Dias","doi":"10.1007/s12283-026-00552-9","DOIUrl":"10.1007/s12283-026-00552-9","url":null,"abstract":"Videogrammetry can quantify head acceleration events in sport, but because standard datasets lack the large rotations, rapid motion, and frequent occlusion characteristic of sports collisions, the accuracy of modern deep learning pose estimators in this context remains unclear. This study addresses this gap by benchmarking three models for monocular head pose estimation during controlled football headers: a direct head pose regressor, an end-to-end face reconstruction model, and a full-body human mesh recovery model. Ten participants performed linear and rotational headers. Synchronised 1000 Hz infrared motion capture provided ground-truth orientations, while dual 50 Hz video cameras supplied frontal and side views. Model outputs from standardised detections were temporally smoothed and evaluated using geodesic and incremental geodesic error metrics. All models achieved single-digit mean geodesic (4°-8°) and incremental geodesic (<4°) errors. SAM 3D yielded the lowest mean errors (4.59° and 1.99°, respectively) and showed lower sensitivity to occlusion and temporal impact phase. By uniquely comparing head-only and full-body approaches, results demonstrate that modern full-body human mesh recovery models outperform dedicated head pose estimators under the heavy occlusion and dynamic conditions typical of sports collisions. Errors increased for side-view footage, rotational trials, and low facial visibility. These findings support using deep learning, particularly full-body mesh recovery, for semi-automated videogrammetric reconstruction of head acceleration events.","PeriodicalId":46387,"journal":{"name":"Sports Engineering","volume":"29 1","pages":"17"},"PeriodicalIF":1.4,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13190447/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148018106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insightful skiing: developing explainable models of on-snow performance through physical attribute selection of alpine skis. 有洞察力的滑雪：通过高山滑雪板的物理属性选择，开发可解释的雪上性能模型。

IF 1.4

Sports Engineering Pub Date : 2025-01-01 Epub Date: 2025-08-04 DOI: 10.1007/s12283-025-00511-w

Jonathan Audet, Abdelghani Benghanem, Alexis Lussier-Desbiens

{"title":"Insightful skiing: developing explainable models of on-snow performance through physical attribute selection of alpine skis.","authors":"Jonathan Audet, Abdelghani Benghanem, Alexis Lussier-Desbiens","doi":"10.1007/s12283-025-00511-w","DOIUrl":"10.1007/s12283-025-00511-w","url":null,"abstract":"Evaluating alpine skis on snow is pivotal for ski development and consumer decision-making, yet it is resource-intensive and hindered by subjective assessments. Leveraging recent extensive ski physical measurements and on-snow ski evaluation metrics, this study proposes an automated methodology that employs elastic net regression, bootstrap resampling, and intelligent feature selection to predict the on-snow performance using a minimal set of physical attributes. Results on 192 skis divided into 10 categories and 29 metrics indicate promising predictive capabilities, with models exhibiting an average Mean Absolute Error rank prediction of 15%. Importantly, the models utilize less than three physical attributes on average, underscoring their simplicity and effectiveness in identifying key performance-defining properties. These findings, to the authors' knowledge, represent the most comprehensive description of ski on-snow performance to date and hold implications for ski design and consumer guidance. Moreover, the automated methodology enables the easy integration of other evaluation sources, facilitating further refinement and validation, while promising to consider the diversity of opinions related to ski on-snow performance assessment.Supplementary information: The online version contains supplementary material available at 10.1007/s12283-025-00511-w.","PeriodicalId":46387,"journal":{"name":"Sports Engineering","volume":"28 2","pages":"35"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12327194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144795823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The effect of a pelvic compression belt on postural stability in postpartum women. 骨盆压迫带对产后妇女体位稳定性的影响。

IF 1.4

Sports Engineering Pub Date : 2025-01-01 Epub Date: 2025-07-28 DOI: 10.1007/s12283-025-00516-5

Rachael F Vatter, Diana Segura-Velandia, Isabel S Moore, Aimée C Mears

{"title":"The effect of a pelvic compression belt on postural stability in postpartum women.","authors":"Rachael F Vatter, Diana Segura-Velandia, Isabel S Moore, Aimée C Mears","doi":"10.1007/s12283-025-00516-5","DOIUrl":"10.1007/s12283-025-00516-5","url":null,"abstract":"The health benefits of physical activity are well known, however, for the postpartum population there are barriers to retuning to physical activity such as pelvic pain and a fear of movement. Pelvic pain can manifest from instability in the pelvic region and lead to impaired balance and postural stability, exacerbating fear of movement. This study aimed to assess the effect of pelvic compression on postural stability in postpartum women and a nulligravida control cohort. The participants' postural stability was measured using an inertial measurement unit, and the outcome measures JERK, mean velocity, trajectory area index, and root mean squared acceleration calculated, across two visual conditions (eyes open and eyes closed) during tandem and unilateral stances with and without the use of a pelvic compression belt. Significant improvements were observed, particularly in root mean square acceleration (p = 0.003) and JERK (p = 0.001), when a compression belt was used indicating enhanced postural stability, with the participants moving more smoothly and less intensely when maintaining balance. The effect of compression was highly individualised, suggesting pelvic compression could serve as an effective intervention to improve postural stability, though individual responses warrant a tailored approach for optimal results.","PeriodicalId":46387,"journal":{"name":"Sports Engineering","volume":"28 2","pages":"34"},"PeriodicalIF":1.4,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12327193/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144795824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimating vertical ground reaction forces from plantar pressure using interpretable high-dimensional approximation 利用可解释的高维近似值从足底压力估算垂直地面反作用力

IF 1.7

Sports Engineering Pub Date : 2024-01-11 DOI: 10.1007/s12283-023-00444-2

Laura Weidensager, D. Krumm, Daniel Potts, S. Odenwald

引用次数: 0

Comparing equestrian helmets with and without rotational technology using an equestrian concussive-specific helmet test protocol 使用马术脑震荡专用头盔测试协议，比较带旋转技术和不带旋转技术的马术头盔

IF 1.7

Sports Engineering Pub Date : 2024-01-06 DOI: 10.1007/s12283-023-00445-1

Amy Murphy, Andrew Post, Michael D. Gilchrist, J. M. Clark, B. Hoshizaki

引用次数: 0

Global navigation satellite systems’ receivers in mountain running: the elevation problem 全球导航卫星系统的接收器在山区运行：海拔问题

IF 1.7

Sports Engineering Pub Date : 2023-12-28 DOI: 10.1007/s12283-023-00443-3

Tomasz Szot, Marcin Sontowski

引用次数: 0

Power loss of the chain drive in a race tandem bicycle 链传动在比赛双人自行车中的功率损失

Sports Engineering Pub Date : 2023-11-14 DOI: 10.1007/s12283-023-00439-z

Albert Smit, Stephan van der Zwaard, Ina Janssen, Thomas W. J. Janssen

{"title":"Power loss of the chain drive in a race tandem bicycle","authors":"Albert Smit, Stephan van der Zwaard, Ina Janssen, Thomas W. J. Janssen","doi":"10.1007/s12283-023-00439-z","DOIUrl":"https://doi.org/10.1007/s12283-023-00439-z","url":null,"abstract":"Abstract Tandem cycling is a paralympic discipline, in which two cyclists ride on one tandem bicycle. Their performance can be improved by minimizing power losses. This study aimed to quantify power loss due to the chain drive of a tandem bicycle and influence of power input, location of power input, and rear chain wheel size. Power loss was determined by the difference between power input applied on the cranks (front or back rider) and power output measured at the rear wheel. Power output values were set from 100 to 400 W, with 50 W increments, and using two gear ratios, 53-11 and 53-13. Power input was generated at the back crank (with only the primary chain—solo bicycle—and with primary and secondary chain attached) and at the front crank (with primary and secondary chain attached). The power loss for the solo bicycle was 2.1% (± 1.5%). A significantly larger power loss was found for the tandem in the back (3.7 ± 2.4%, p < 0.001) and front positions (3.0 ± 1.8%, p < 0.001), with marginal differences between positions at higher power output. Power loss for the tandem was lower with gear 53-13 (2.9% ± 1.7%) compared to 53-11 (4.0 ± 2.8%, p < 0.001, effect size is medium). Therefore, findings suggest that back and front riders experience similar power losses due to the chain drive, but more than on a solo bicycle. Tandem cyclists can reduce their power loss in the chain drive by selecting larger gear ratios. Coaches may consider these findings for selecting and coaching their tandem cyclists.","PeriodicalId":46387,"journal":{"name":"Sports Engineering","volume":"52 36","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134902126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Concurrent validity and reliability of photoelectric and accelerometer technology for calculating vertical jump height in female athletes 光电与加速度计技术计算女子运动员垂直跳高的同时效度与信度

Sports Engineering Pub Date : 2023-11-06 DOI: 10.1007/s12283-023-00440-6

Andrew S. Perrotta, Brent D. Day, Ibrahim Wafai, Robert P. Oates, Maggie L. Peterson, Anika J. Scott, Rachel C. Barker, Athena B. Garedakis, Kayla A. Seaborn

引用次数: 0

Differences in trunk–shoulder inter-joint coordination and sequencing between elite and recreational ice hockey players during slap shots 精英冰球运动员和休闲冰球运动员拍球时躯干-肩关节间协调和顺序的差异

Sports Engineering Pub Date : 2023-10-27 DOI: 10.1007/s12283-023-00441-5

S. M. Robbins, P. J. Renaud, N. MacInnis, D. J. Pearsall

引用次数: 0