European journal of sport science最新文献

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Nation-wide cross-sectional study of participation and predictors of enjoyment among Australian adult walking sport participants 澳大利亚成人步行运动参与者参与和享受预测因素的全国性横断面研究。
European journal of sport science Pub Date : 2025-01-09 DOI: 10.1002/ejsc.12246
Jasmine M Petersen, Cath J Connolly, Lucy K Lewis
{"title":"Nation-wide cross-sectional study of participation and predictors of enjoyment among Australian adult walking sport participants","authors":"Jasmine M Petersen,&nbsp;Cath J Connolly,&nbsp;Lucy K Lewis","doi":"10.1002/ejsc.12246","DOIUrl":"10.1002/ejsc.12246","url":null,"abstract":"<p>This study examined participation and predictors of walking sports enjoyment among Australian adult walking sport participants. An online cross-sectional survey assessed walking sport participation, enjoyment, and barriers and motives to participation. Physical activity behavior and motivations were also assessed. The sample comprised 294 walking sport participants (M<sub>age</sub> = 62.9 ± 10.5 years). Participants engaged in a variety of walking sports (e.g., football, netball, and basketball) and largely did so one occasion per week (for ≤3 h). Our findings suggest that typically walking sport participants are female (60.1%), aged ≥60 years (54.7%), in married/de facto relationships (73.4%), reside in higher socioeconomic status areas, and are sufficiently active (i.e., ≥150 min of activity per week; 91.0%). The most endorsed barrier to walking sport participation was physical health (19.7%), while fun/enjoyment (90.5%) was the most endorsed motive. The regression analyses showed that gender (being female; <i>β</i> = 0.17), older age (≥60 years; <i>β</i> = −0.21), and intrinsic motivation for physical activity (<i>β</i> = 0.23) were significant predictors of walking sport enjoyment. Ongoing efforts to ensure that walking sports are a positive experience for all are necessary. The provision of walking sport offerings that integrate elements (e.g., social connectedness) known to be of value to specific subpopulations may be important to fostering enjoyment.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11726637/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960546","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 use of individualised, media-based sleep hygiene education for professional female footballers 对职业女足运动员进行个性化的、基于媒体的睡眠卫生教育。
European journal of sport science Pub Date : 2025-01-07 DOI: 10.1002/ejsc.12247
Julie Gooderick, Russ Clash, Harry Fisher, Neil Maxwell, Mark Hayes
{"title":"The use of individualised, media-based sleep hygiene education for professional female footballers","authors":"Julie Gooderick,&nbsp;Russ Clash,&nbsp;Harry Fisher,&nbsp;Neil Maxwell,&nbsp;Mark Hayes","doi":"10.1002/ejsc.12247","DOIUrl":"10.1002/ejsc.12247","url":null,"abstract":"<p>Sleep hygiene can be defined as practicing habits that facilitate sleep; poor sleep hygiene is common among elite athletes, and improving this can be one way to enhance sleep indices. Given the large inter-individual variability of sleep, there is a need for further investigation into individualised sleep hygiene for elite female athletes, with consideration for the practical application of the method. Using a self-controlled time series design with repeated measures, <i>n</i> = 16 professional female footballers completed a 9-week study during mid-season. Monitoring of sleep (actigraphy, self-report) occurred at week 1, 4, 7 and 9—a control period occurred at week 2 and 3, and a subsequent intervention period occurred at weeks 5 and 6. Based on baseline sleep monitoring, media-based messages were designed with the purpose of giving a singular sleep hygiene message; all participants received these individualised messages daily across the 2-week intervention period at a standardised time of 8.00 p.m., with the intention of them actioning the sleep hygiene point. One-way analysis of variance with repeated measures was conducted to assess the differences between control period, intervention period and follow-up for each measured variable. Significant differences were observed post-intervention for sleep efficiency (<i>p</i> &lt; 0.001) and sleep latency (<i>p</i> &lt; 0.001), whereas the athlete sleep behaviour questionnaire score significantly improved in the follow-up period (week 9) post intervention (<i>p</i> = 0.039). This is the first study to present this novel method of individualised sleep hygiene education for elite female athletes and is also the first study to demonstrate the use of sleep hygiene interventions to improve sleep factors for female athletes' mid-season. This demonstrates a promising, time-efficient approach to sleep hygiene education, with a potentially wide scope of application, as well as demonstrating there is indeed potential for elite female athletes to gain sleep improvements mid-season.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706236/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142960549","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
Effects of wearable resistance during warm-up on physical fitness measures in young female athletes 热身时的耐磨性对年轻女运动员体能测量的影响。
European journal of sport science Pub Date : 2025-01-03 DOI: 10.1002/ejsc.12236
Chloe Ryan, Aaron Uthoff, Nathan Stewart, Chloe McKenzie, John Cronin
{"title":"Effects of wearable resistance during warm-up on physical fitness measures in young female athletes","authors":"Chloe Ryan,&nbsp;Aaron Uthoff,&nbsp;Nathan Stewart,&nbsp;Chloe McKenzie,&nbsp;John Cronin","doi":"10.1002/ejsc.12236","DOIUrl":"10.1002/ejsc.12236","url":null,"abstract":"<p>The aim of this study was to quantify the training effects of wearing calf-loaded wearable resistance (WR) during a netball specific warm-up in female netball athletes. Twenty-nine high school female netball athletes were matched for change of direction (COD) speed and randomly allocated to either WR training or an unloaded group. Both groups performed the same warm-up two times per week for 6 weeks, with the WR group wearing 1%–1.5% body mass loads on each calf. Pre- and post-training data were collected for 5- and 15-m sprint times, modified 5-0-5 COD splits and total time and single-leg horizontal, lateral and countermovement (CMJ) jump performance. Both groups significantly decreased their 5 m linear sprint times (WRT = −4.41%, effect size [ES] = −1.60; control [CON] = −2.60%, ES = −0.71), while only the WRT significantly decreased their 15 m time (−2.14%, ES = −1.55). There were no significant decreases in 5-0-5 total time for either group, however the WRT group significantly decreased their acceleration (−7.40%, ES = −0.60) and COD split (−9.73%, ES = −1.02). Both groups increased their lateral jump (WRT: 4.60%–6.62%, ES = 0.67–0.96; CON: 5.48%–6.06%, ES = 0.73–0.75), while only the WRT group increased (<i>p</i> &lt; 0.05) their horizontal jump (3.57%–4.18%, ES = 0.57–0.67). Given the results, it appears that calf-loaded WR may be an effective method for improving linear speed, aspects of the modified 5-0-5 test and horizontal jump ability in female netball athletes.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ejsc.12236","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142928881","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
Acute effects of supramaximal loaded back squat activation on countermovement jump performance, muscle mechanical properties, and skin surface temperature in powerlifters 超大负荷后蹲激活对举重运动员反动作跳跃性能、肌肉力学性能和皮肤表面温度的急性影响。
European journal of sport science Pub Date : 2024-12-31 DOI: 10.1002/ejsc.12245
Dawid Perenc, Petr Stastny, Robert Urbański, Michał Krzysztofik
{"title":"Acute effects of supramaximal loaded back squat activation on countermovement jump performance, muscle mechanical properties, and skin surface temperature in powerlifters","authors":"Dawid Perenc,&nbsp;Petr Stastny,&nbsp;Robert Urbański,&nbsp;Michał Krzysztofik","doi":"10.1002/ejsc.12245","DOIUrl":"10.1002/ejsc.12245","url":null,"abstract":"<p>This study aimed to investigate the effects of performing either eccentric-only (ECC) or eccentric-concentric (ECC-CON) back squats (BS) with a supramaximal load on countermovement jump (CMJ) performance. Changes in front thigh skin surface temperature and mechanical properties (oscillation frequency and stiffness) of the vastus lateralis were also examined. Fourteen male powerlifters participated in this study (age: 22.5 ± 2.3 years, body weight: 84.2 ± 11.1 kg, height: 178 ± 7 cm, training experience: 5.4 ± 1.6 years, BS one-repetition maximum [1RM]: 177 ± 22.8 kg). The experimental sessions included 2 sets of 2 BS at 110% 1RM of either ECC-CON (load distributed by half on the barbell [55%] and on weight releasers [55%]) or ECC (only eccentric phase of BS) and CTRL with no CA applied. CMJ performance, mechanical properties, and skin surface temperature were measured before and at the third, sixth, ninth, and 12<sup>th</sup> min. After each protocol, only the ECC-CON condition led to a significant increase in CMJ height after individual optimal rest time compared to pre-CA (38.1 ± 5.2 vs. 39.8 ± 5.0 cm; <i>p</i> = 0.003; effect size [ES] = 0.32; <i>Δ</i> = 4.9 ± 5.0%) with a significant rise in skin surface temperature (32.98 ± 1.24 vs. 33.69 ± 0.96°C; <i>p</i> = 0.006; ES = 0.62; <i>Δ</i> = 2.2 ± 2.6%) and no significant changes in mechanical properties of the vastus lateralis. The ECC-CON condition led to a significant acute improvement in CMJ height and an increase in front thigh skin surface temperature among powerlifters. The ECC-CON supramaximal lower limb PAPE protocol should be effectively used among males representing high levels of lower limb muscle strength (&gt;2 × body mass).</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11687363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142911412","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
Physical activity patterns in adolescents: A longitudinal study 青少年体育活动模式:一项纵向研究。
European journal of sport science Pub Date : 2024-12-23 DOI: 10.1002/ejsc.12239
Juliana Maria da Penha Freire Silva, Eduarda Cristina da Costa Silva, Gerfeson Mendonça, Jorge Mota, Pedro C. Hallal, José Cazuza de Farias Júnior
{"title":"Physical activity patterns in adolescents: A longitudinal study","authors":"Juliana Maria da Penha Freire Silva,&nbsp;Eduarda Cristina da Costa Silva,&nbsp;Gerfeson Mendonça,&nbsp;Jorge Mota,&nbsp;Pedro C. Hallal,&nbsp;José Cazuza de Farias Júnior","doi":"10.1002/ejsc.12239","DOIUrl":"10.1002/ejsc.12239","url":null,"abstract":"<p>The present study aimed at describing and comparing the physical activity (PA) patterns of adolescents from a middle-income country over a 4-year period. This is a longitudinal observational study (four waves of data collection, 2014–2017) with 668 adolescents aged 10–13 years in 2014 (mean age of 11.8 ± 0.8 years), of both sexes (53.3% girls), from public schools in João Pessoa, Paraíba state, Brazil. PA was measured using a questionnaire and pattern operationally defined based on the following indicators: type, frequency, duration, and PA recommendations. The most practiced physical activities during the study period were active commuting, games, dancing, cycling, soccer, and futsal. There was a linear trend to a decline in the number of adolescents engaging in nearly all the physical activities, in the duration of activities and the proportion that met the PA recommendations (52.8% in 2014 to 32.2% in 2017). The adolescents engaged in different physical activities, but these declined over the years.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11667766/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883430","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
Eight-week lat pull-down resistance training with joint instability leads to superior pull-up endurance performance and reduced antagonist coactivation in recreationally active male college students 8周的关节不稳定下拉阻力训练可使娱乐性运动的男大学生上拉耐力表现优异,并减少拮抗剂协同激活。
European journal of sport science Pub Date : 2024-12-23 DOI: 10.1002/ejsc.12243
Qian Li, Jiaqi Yan, Minjie Qiao, Jiuqing Quan, Yiqing Chen, Mingxin Gong, Wenxin Niu, Lejun Wang
{"title":"Eight-week lat pull-down resistance training with joint instability leads to superior pull-up endurance performance and reduced antagonist coactivation in recreationally active male college students","authors":"Qian Li,&nbsp;Jiaqi Yan,&nbsp;Minjie Qiao,&nbsp;Jiuqing Quan,&nbsp;Yiqing Chen,&nbsp;Mingxin Gong,&nbsp;Wenxin Niu,&nbsp;Lejun Wang","doi":"10.1002/ejsc.12243","DOIUrl":"10.1002/ejsc.12243","url":null,"abstract":"<p>This study aimed to investigate the effects of an 8-week lat pull-down resistance training program with joint instability on pull-up performance in male college students. Thirty-four healthy recreationally active male college students were randomly assigned to either the joint instability resistance training (IRT) or traditional resistance training (TRT) group. Participants of the TRT and IRT groups performed lat pull-down training on stable and joint instability conditions for 8 weeks, respectively. Pull-up endurance (number of repetitions), anthropometry, lat pull-down maximal voluntary isometric contraction (MVIC) peak force, and movement stability of performing unstable lat pull-down were tested before and after the 8-week training. Surface electromyography of biceps brachii (BB), triceps brachii (TB), brachioradialis (BR), anterior deltoid (AD), middle deltoid (MD), posterior deltoid (PD), pectoralis major (PM), and latissimus dorsi (LD) muscles were recorded during the pull-up endurance test. The level of significance is set at <i>p</i> ≤ 0.05. The results demonstrated that the pull-up endurance and lat pull-down MVIC peak force of both IRT and TRT groups were significantly enhanced after 8-week training compared to the pre-training test. Notably, the number of pull-up repetitions of the IRT group was 45.5% higher than the TRT group. These findings suggest that lat pull-down training performed with joint instability may lead to greater improvements in pull-up endurance compared to the stable condition, possibly attributed to enhanced muscle contraction efficiency as indicated by decreased antagonist coactivation activity.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11667758/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883458","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
Sex-based differences in shot put, javelin throw, and long jump in 8-and-under and 9–10-year-old athletes 8 岁及以下和 9-10 岁运动员在铅球、标枪和跳远方面的性别差异。
European journal of sport science Pub Date : 2024-12-14 DOI: 10.1002/ejsc.12241
Gregory A. Brown, Brandon S. Shaw, Ina Shaw
{"title":"Sex-based differences in shot put, javelin throw, and long jump in 8-and-under and 9–10-year-old athletes","authors":"Gregory A. Brown,&nbsp;Brandon S. Shaw,&nbsp;Ina Shaw","doi":"10.1002/ejsc.12241","DOIUrl":"10.1002/ejsc.12241","url":null,"abstract":"<p>There is an ongoing debate regarding the necessity for sex-segregated sports particularly in youth. However, there has been minimal evaluation of prepubertal sex-based differences in the events of shot put, javelin throw, and long jump. Therefore, the top eight performances from the USA Track and Field National Youth Outdoor Championships and National Junior Olympic Championships during the years 2016–2023 for shot put, javelin throw, and long jump in the 8-and-under and 9–10-year-old age groups were analyzed for sex-based differences. The 8-and-under males threw the shot put farther (<i>P</i> &lt; 0.0001 and Hedges’ <i>g</i> = 0.922) than females by 19.3% and the 9–10-year-old males threw the shot put farther (<i>P</i> = 0.016 and Hedges’ <i>g</i> = 0.332) than females by 6.5%. The 8-and-under males threw the javelin farther (<i>P</i> &lt; 0.0001 and Hedges’ <i>g</i> = 1.269) than females by 32.6% and 9–10-year-old males threw the javelin farther (<i>P</i> &lt; 0.0001 and Hedges’ <i>g</i> = 1.169) than females by 23.5%. The 8-and-under males long jumped farther (<i>P</i> = 0.010 and Hedges’ <i>g</i> = 0.359) than females by 4.7% and 9–10-year-old age males long jumped farther (<i>P</i> = 0.007 and Hedges’ <i>g</i> = 0.552) than females by 3.9%. The average between sex differences were larger than the within sex differences between the first through fourth place finishers in all but 9–10-year-old shot put. In all events, the greatest individual distance for a male exceeded that for a female. Therefore, the present data indicate that, in elite competition, males in the 8-and-under and 9–10-year-old age groups typically performed long jump and throw the shot put and javelin farther than females of the same age.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11681612/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824864","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
Modelling heart rate dynamics in relation to speed and power output in sprint kayaking as a basis for training evaluation and optimisation 在皮划艇冲刺中,以速度和力量输出为基础,建立心率动态模型,作为训练评估和优化的基础。
European journal of sport science Pub Date : 2024-12-13 DOI: 10.1002/ejsc.12185
Gielen Jasper, Catherine Smets, Noor Vidts, Stef Schots, Stessens Loes, Arne Jaspers, Meeusen Romain, Aerts Jean-Marie
{"title":"Modelling heart rate dynamics in relation to speed and power output in sprint kayaking as a basis for training evaluation and optimisation","authors":"Gielen Jasper,&nbsp;Catherine Smets,&nbsp;Noor Vidts,&nbsp;Stef Schots,&nbsp;Stessens Loes,&nbsp;Arne Jaspers,&nbsp;Meeusen Romain,&nbsp;Aerts Jean-Marie","doi":"10.1002/ejsc.12185","DOIUrl":"10.1002/ejsc.12185","url":null,"abstract":"<p>With the development of power output sensors in the field of paddle sports and the ongoing advancements in dynamical analysis of exercise data, this study aims to model the measurements of external training intensity in relation to heart rate (HR) time-series during flat-water kayak sprint. Nine elite athletes performed a total of 47 interval training sessions with incremental intensity (light to (sub-) maximal effort levels). The data of HR, speed and power output were measured continuously and rating of perceived exertion and blood lactate concentration ([BLa]) were sampled at the end of each interval stage. Different autoregressive-exogenous (ARX) modelling configurations are tested, and we report on which combination of input (speed or power), model order (1st or 2nd), parameter estimation method (time-(in)variant) and training conditions (ergometer or on-water) is best suited for linking external to internal measures. Average model <i>R</i><sup>2</sup> values varied between 0.60 and 0.97, with corresponding average root mean square error values of 15.6 and 3.2 bpm. 1st order models with time-varying (TV) parameter estimates yield the best model performance (average <i>R</i><sup>2</sup> = 0.94). At the level of the individual athlete, the TV modelling features (i.e., the model parameters and derivatives such as time constant values) show significant repeated measure correlations in relation to measures of exercise intensity. In conclusion, the study provides a comprehensive description of how the dynamic relationship between external load and HR for sprint kayaking training data can be modelled. Such models can be used as a basis for improving training evaluation and optimisation.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11680194/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819567","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
Effect of cold-water immersion treatment on recovery from exercise-induced muscle damage in the hamstring. 冷水浸泡治疗对运动性腘绳肌损伤恢复的影响。
European journal of sport science Pub Date : 2024-12-12 DOI: 10.1002/ejsc.12235
Yuh-Chuan Huang, Tai-Ying Chou, Trevor C Chen, Hung-Ting Chen
{"title":"Effect of cold-water immersion treatment on recovery from exercise-induced muscle damage in the hamstring.","authors":"Yuh-Chuan Huang, Tai-Ying Chou, Trevor C Chen, Hung-Ting Chen","doi":"10.1002/ejsc.12235","DOIUrl":"https://doi.org/10.1002/ejsc.12235","url":null,"abstract":"<p><p>This study investigated the effect of five consecutive days of cold-water immersion (CWI) on recovery from exercise-induced muscle damage (EIMD) in the hamstrings following maximal eccentric contraction (EC) exercise. Eighteen healthy adult women were randomly assigned to a CWI group and a control group (CG) (n = 9/group). Participants performed 10 sets of 10 repetitions of isokinetic EC at 30°/second and underwent maximum voluntary isometric contraction (MVC), delayed onset muscle soreness (DOMS) assessment, straight leg raise (SLR) test, and plasma myoglobin (Mb) measurement. The CWI group received one 14-min session of CWI treatment (14°C) at 1, 25, 49, 73, and 97 h after the EC test, whereas the CG rested in a seated position at the same five time points without receiving treatment. (1) All the dependent variables in the CWI group and CG exhibited significant changes after the EC test (p < 0.05). (2) The recovery effect in the CWI group was significantly greater than in the CG in terms of the MVC, DOMS, SLR, and plasma Mb concentration results. MVC increased by 89.3 ± 2.0% on the fourth day (p < 0.013), DOMS decreased by 15.4 ± 1.5 mm on the second day (p < 0.000), SLR increased by 86.3 ± 1.1% on the second day (p < 0.014), and plasma Mb decreased by 436.3 ± 60.8% on the third day (p < 0.014). The study indicates that five consecutive days of CWI at 14°C significantly enhance recovery from exercise-induced muscle damage in the hamstrings.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142815334","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
Evaluating acceleration impact asymmetries during sprinting: Analyzing leg and track lane disparities among national athletes 评估短跑中的加速冲击不对称:分析国家运动员的腿和跑道差异。
European journal of sport science Pub Date : 2024-12-11 DOI: 10.1002/ejsc.12232
Elí Obed Paz-Paz, Pedro Pérez-Soriano, Alberto Encarnación-Martínez
{"title":"Evaluating acceleration impact asymmetries during sprinting: Analyzing leg and track lane disparities among national athletes","authors":"Elí Obed Paz-Paz,&nbsp;Pedro Pérez-Soriano,&nbsp;Alberto Encarnación-Martínez","doi":"10.1002/ejsc.12232","DOIUrl":"10.1002/ejsc.12232","url":null,"abstract":"<p>Sprinting on bends demands biomechanical adjustments compared with straight-line sprinting that results in asymmetrical force production in the lower extremities. This study aimed to assess acceleration impacts in the lower extremity and impact transmission when sprinting on bend versus straight lanes. Eight experienced sprinters (age 16.3 ± 1.7 years, mass 58.5 ± 11.4 kg, and height 1.72 ± 0.10 m), specializing in the 100, 200, and 400 m events, ran two bouts of 60 m lane heats at maximum speed on the straight lane and bend lanes one and eight (with radii of 37 and 45.10 m, respectively) of a standard 400 m track. Accelerometers on the tibias and head recorded acceleration impacts. Results revealed higher impact magnitudes in the outside leg during bend sprints compared with the inside leg (<i>p</i> &lt; 0.05). Additionally, bend lanes exhibited higher impact magnitudes compared with the straight lane (<i>p</i> &lt; 0.05). Asymmetrical acceleration impacts were observed during bend sprints, with greater asymmetry compared to straight sprints. However, the distribution of impact forces between the legs did not appear to be influenced by lane radius. This suggests that the specific biomechanical demands of bend sprinting differ significantly from those of straight sprinting. These findings emphasize the need for coaches to account for increased asymmetry and distinct impact patterns when training athletes for bend sprints compared to straight-line sprints.</p>","PeriodicalId":93999,"journal":{"name":"European journal of sport science","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11693402/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142815335","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}
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