Sports medicine international open最新文献

Win Your Race Goal: A Generalized Approach to Prediction of Running Performance. 赢得比赛目标：预测跑步成绩的通用方法。

Sports medicine international open Pub Date : 2024-10-09 eCollection Date: 2024-01-01 DOI: 10.1055/a-2401-6234

Sandhyarani Dash

{"title":"Win Your Race Goal: A Generalized Approach to Prediction of Running Performance.","authors":"Sandhyarani Dash","doi":"10.1055/a-2401-6234","DOIUrl":"https://doi.org/10.1055/a-2401-6234","url":null,"abstract":"We introduce a novel approach for predicting running performance, designed to apply across a wide range of race distances (from marathons to ultras), elevation gains, and runner types (front-pack to back of the pack). To achieve this, the entire running logs of 15 runners, encompassing a total of 15,686 runs, were analyzed using two approaches: (1) regression and (2) time series regression (TSR). First, the prediction accuracy of a long short-term memory (LSTM) network was compared using both approaches. The regression approach demonstrated superior performance, achieving an accuracy of 89.13% in contrast, the TSR approach reached an accuracy of 85.21%. Both methods were evaluated using a test dataset that included the last 15 runs from each running log. Secondly, the performance of the LSTM model was compared against two benchmark models: Riegel formula and UltraSignup formula for a total of 60 races. The Riegel formula achieves an accuracy of 80%, UltraSignup 87.5%, and the LSTM model exhibits 90.4% accuracy. This work holds potential for integration into popular running apps and wearables, offering runners data-driven insights during their race preparations.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"8 ","pages":"a24016234"},"PeriodicalIF":0.0,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11495242/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142514384","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 Lower Limb Muscle Fatigue on Dynamic Balance Performance in Healthy Young Adults: Role of Arm Movement. 下肢肌肉疲劳对健康年轻人动态平衡能力的影响：手臂运动的作用

Sports medicine international open Pub Date : 2024-09-11 eCollection Date: 2024-01-01 DOI: 10.1055/a-2346-2759

Katharina Borgmann, Ruben Brinkmann, Julian Bauer, Mathew W Hill, Thomas Muehlbauer

{"title":"Effect of Lower Limb Muscle Fatigue on Dynamic Balance Performance in Healthy Young Adults: Role of Arm Movement.","authors":"Katharina Borgmann, Ruben Brinkmann, Julian Bauer, Mathew W Hill, Thomas Muehlbauer","doi":"10.1055/a-2346-2759","DOIUrl":"https://doi.org/10.1055/a-2346-2759","url":null,"abstract":"There is evidence that balance performance deteriorates due to exercise-induced muscle fatigue. However, it is unknown if free arm movement during balance testing can compensate for, or restricted arm movement can amplify these performance degradations. Thus, the objective of this study was to compare the effects of free versus restricted arm movement on balance performance under non-fatigued and fatigued conditions. Fifty-two healthy participants (men=31, women=21; age=22.6±1.6 years) were assessed for their dynamic balance (reach distances for the Y Balance Test - Lower Quarter) under non-fatigued and fatigued (repetitive vertical bipedal box jumps until failure) conditions using two different arm positions: free (move the arms freely) and restricted (keep the arms akimbo) arm movement. Restriction of arm movement (all p< 0.001; 0.48≤ η p 2 ≤0.79) and application of fatigue ( p≤ 0.003; 0.16≤ η p 2 ≤0.28) independently, but not the interaction between the two (except for the posteromedial reach direction: p= 0.046; η p 2 =0.08) , resulted in significantly deteriorated lower limb reach distances. These findings suggest that free arm movement and thus the use of an 'upper body strategy' has no compensatory effect on muscle fatigue-induced balance deteriorations.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"8 ","pages":"a23462759"},"PeriodicalIF":0.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11497100/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142514383","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 Exercise-Induced Changes in Myokine Expression on the Tumor Microenvironment. 运动诱导的肌动蛋白表达变化对肿瘤微环境的影响

Sports medicine international open Pub Date : 2024-06-19 eCollection Date: 2024-01-01 DOI: 10.1055/a-2283-1663

Nadira Gunasekara, Dorothea Clauss, Wilhelm Bloch

{"title":"Effects of Exercise-Induced Changes in Myokine Expression on the Tumor Microenvironment.","authors":"Nadira Gunasekara, Dorothea Clauss, Wilhelm Bloch","doi":"10.1055/a-2283-1663","DOIUrl":"10.1055/a-2283-1663","url":null,"abstract":"In this narrative review, we summarize the direct and indirect effects that myokines have on the tumor microenvironment. We took studies of various cancer types and species into account. Systematic reviews and meta-analyses that matched the search terms were also considered. We searched databases for six months. As a narrative approach was chosen, no data was analyzed or reanalyzed. The goal of this narrative review is to create an overview on the topic to identify research gaps and answer the questions as to whether myokine expression may be relevant in cancer research in regard to the tumor microenvironment. Six commonly known myokines were chosen. We found strong links between the influence exercise has on interleukin-6, oncostatin M, secreted protein acidic and rich in cysteine, and irisin in the context of tumor progression and inhibition via interactions with the tumor microenvironment. It became clear that the effects of myokines on the tumor microenvironment can vary and contribute to disease progression or regression. Interactions among myokines and immune cells must also be considered and require further investigation. To date, no study has shown a clear connection, while multiple studies suggest further investigation of the topic, similar to the effects of exercise on myokine expression.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"8 ","pages":"a22831663"},"PeriodicalIF":0.0,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11204211/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141461220","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

One year of heavy resistance training modifies muscle fiber characteristics in elderly 一年的重阻力训练改变了老年人的肌肉纤维特征

Sports medicine international open Pub Date : 2024-06-05 DOI: 10.1055/a-2338-8226

Anne Theil Gates, Michael Kjaer, Jesper Loevind Andersen

{"title":"One year of heavy resistance training modifies muscle fiber characteristics in elderly","authors":"Anne Theil Gates, Michael Kjaer, Jesper Loevind Andersen","doi":"10.1055/a-2338-8226","DOIUrl":"https://doi.org/10.1055/a-2338-8226","url":null,"abstract":"Physical function declines with age, accelerating during the 6th decade of life, primarily due to loss in muscle mass and strength. The present study aimed to investigate the effect of one year of heavy resistance training in older adults (62-70 years) on muscle mass and strength. Further, we investigated muscle characteristics after the intervention by obtaining muscle biopsies from vastus lateralis to compare muscle fiber characteristics between the heavy resistance training (HRT) (n=10) and the sedentary control group (CON) (n=10). We found that one year of resistance training increased isometric muscle strength (p<0.0001, ES: 2.43 (Hedges’ g)) and lean body mass (p<0.05, ES: 0.96), whereas cross-sectional area of vastus lateralis and lean leg mass were unaltered. At year 1, the percentage of type IIX muscle fibers was lower in HRT compared to CON (p<0.05, ES: 0.99), whereas the muscle fiber size did not differ between groups for the major fiber types (I and II). In conclusion, one year of resistance training in elderly improved muscle strength and lean body mass but not cross-sectional area and lean leg mass. This indicate that the increase in muscle strength may be caused by neuromuscular adaptations rather than morphological muscle tissue changes per se.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"5 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141384801","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

Comparison of Neuromuscular Fatigue in Powerlifting Paralympics in Different Training Methods. 比较不同训练方法下残奥会举重运动员的神经肌肉疲劳。

Sports medicine international open Pub Date : 2024-03-18 eCollection Date: 2024-01-01 DOI: 10.1055/a-2207-7922

Márcio Getirana-Mota, Felipe J Aidar, Frederico Ribeiro Neto, Taísa Pereira Santos, Paulo Francisco de Almeida-Neto, Breno Guilherme de Araújo Tinôco Cabral, Lucio Marques Vieira-Souza, Nuno D Garrido, Victor M Reis, Raphael Fabricio Souza

{"title":"Comparison of Neuromuscular Fatigue in Powerlifting Paralympics in Different Training Methods.","authors":"Márcio Getirana-Mota, Felipe J Aidar, Frederico Ribeiro Neto, Taísa Pereira Santos, Paulo Francisco de Almeida-Neto, Breno Guilherme de Araújo Tinôco Cabral, Lucio Marques Vieira-Souza, Nuno D Garrido, Victor M Reis, Raphael Fabricio Souza","doi":"10.1055/a-2207-7922","DOIUrl":"10.1055/a-2207-7922","url":null,"abstract":"Mean propulsive velocity (MPV) has been associated with neuromuscular fatigue; however, its suitability for strength training in Paralympic powerlifting (PP) remains uncertain. The objective of this work was to evaluate the MPV in two training methods (traditional-TRAD and eccentric-ECC). Eleven PP athletes were evaluated pre, during the intervention and post intervention at a load of 80% of the 1RM for TRAD and 110%-80% of 1 RM for ECC. The results demonstrated that there was no significant neuromuscular fatigue for the TRAD (~5% performance loss), as well as no significant decline in MPV during the intervention. For the ECC, there is a significant reduction in MPV before and after training (~12% loss of performance). A difference between TRAD and ECC after the intervention was also identified (0.87 m/s±0.22, 95% CI 0.72-1.02 vs. 0.72±0.20, 95% CI 0.59-0.86 p=0.042, F(3.30)=10.190, η2p=0.505 - very high effect). During the intervention for ECC, no significant decline in MPV was observed. The results of this study suggest that the mechanical indices of MPV do not seem to be effective indicators of neuromuscular fatigue in the sample studied or in the context of this specific training regime, being more indicated as a control of training volume.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"8 ","pages":"a22077922"},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11135401/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141176977","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

Subcutaneous and Visceral Fat: Relation with Brown Adipose Tissue Activation in Women. 皮下脂肪和内脏脂肪：与女性棕色脂肪组织活化的关系。

Sports medicine international open Pub Date : 2024-01-08 eCollection Date: 2024-01-01 DOI: 10.1055/a-2187-6974

Samir Ezequiel Da Rosa, Eduardo Borba Neves, Eduardo Camilo Martinez, Runer Augusto Marson, Victor Machado Reis

{"title":"Subcutaneous and Visceral Fat: Relation with Brown Adipose Tissue Activation in Women.","authors":"Samir Ezequiel Da Rosa, Eduardo Borba Neves, Eduardo Camilo Martinez, Runer Augusto Marson, Victor Machado Reis","doi":"10.1055/a-2187-6974","DOIUrl":"10.1055/a-2187-6974","url":null,"abstract":"Brown adipose tissue (BAT) helps control body weight and is inversely correlated with body fat, but it is unclear whether it is subcutaneous adipose tissue (SAT) or visceral adipose tissue (VAT) that is related to BAT activation. The presented study aimed to verify the relation of SAT and VAT on BAT activation through infrared thermography (IRT) and cold stimulation in adult women. Forty women were evaluated in body composition and skin temperature (Tskin) acquisition by IRT. Student's independent t-test, Pearson's correlation, and two-way repeated measures ANOVA with Tukey post-hoc were applied. Women with low amounts of SAT and VAT had a significant increase in supraclavicular Tskin (SCVT). Medium negative degrees of linear variation were found before and after cold stimulation between SCVT, SAT and VAT. A significant effect of the moment factor and the group factor on the SCVT between subjects divided into the groups were pointed out. No difference was found in the relation between SAT, VAT, and BAT in adult women, pointing out that both types of fat are equally related. These results can help clinical practice understand clearly, through IRT, that the high accumulation of SAT and VAT can impair the activation of BAT and hinder the loss of weight in women.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"8 ","pages":"a21876974"},"PeriodicalIF":0.0,"publicationDate":"2024-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10832575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139682039","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

Are Published Studies on Ergogenic Aids in Sports Science Biased Towards Positive Results? 已发表的关于运动科学中人体激素辅助的研究是否偏向于积极的结果?

Sports medicine international open Pub Date : 2023-10-25 DOI: 10.1055/a-2181-6798

Moacir Marocolo, Gustavo R. Mota, Alex Batista Rodrigues, Roberto C de Matos Leite, Rodrigo Hohl, Rodney Coelho da Paixão, Hiago L.R. Souza, Anderson Meireles, Rhai Arriel

引用次数: 0

FIFA initiatives improved survival after loss of consciousness during football games 国际足联的举措提高了在足球比赛中失去意识后的存活率

Sports medicine international open Pub Date : 2023-10-23 DOI: 10.1055/a-2196-9348

Sotirios Katsigiannis, Nader Maai, Polykarpos Patsalis, Sergiu Groppa, Konstantinos Gousias, Bogdan Pintea

{"title":"FIFA initiatives improved survival after loss of consciousness during football games","authors":"Sotirios Katsigiannis, Nader Maai, Polykarpos Patsalis, Sergiu Groppa, Konstantinos Gousias, Bogdan Pintea","doi":"10.1055/a-2196-9348","DOIUrl":"https://doi.org/10.1055/a-2196-9348","url":null,"abstract":"Loss of consciousness (LOC) during football game is associated with very high mortality rates. In order to address football medical emergencies FIFA implemented in 2013 the “FIFA 11 steps to prevent sudden cardiac death” program and distributed the FIFA Medical Emergency Bag. The purpose of this work was to identify independent survival factors after LOC on the pitch and to investigate the effectiveness of the FIFA initiatives. An internet search was performed to identify football players suffering LOC on the pitch between 1990 and 2021. A total of 268 cases could be identified and were dichotomized according to the implementation date of the FIFA medical emergency bag. There was 55% mortality after LOC, while cardiogenic LOC was more often (82% vs. 20%) fatal than traumatic LOC. Mortality in developing countries was higher than in developed countries. From the year 2013 survival improves significantly for both traumatic and cardiogenic cases. Location of the LOC presented significant influence on survival (OR: 0.20 and p<0.001). LOC on the football field is associated with increased mortality and requires separate monitoring based on traumatic vs. non-traumatic cause. FIFA initiatives significantly reduced mortality after LOC but significant differences were identified between developed and developing countries.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"19 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135366239","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

EXERT-BC: Prospective study of an exercise regimen after the treatment for breast cancer ext - bc:乳腺癌治疗后运动方案的前瞻性研究

Sports medicine international open Pub Date : 2023-10-17 DOI: 10.1055/a-2193-0922

Colin E. Champ, Chris Peluso, David J Carenter, Jared Rosenberg, Frank Velasquez, Adam Annichine, Krista Matsko, Parker N. Hyde, Alexander K. Diaz, Sushil Beriwal, Christie Hilton

{"title":"EXERT-BC: Prospective study of an exercise regimen after the treatment for breast cancer","authors":"Colin E. Champ, Chris Peluso, David J Carenter, Jared Rosenberg, Frank Velasquez, Adam Annichine, Krista Matsko, Parker N. Hyde, Alexander K. Diaz, Sushil Beriwal, Christie Hilton","doi":"10.1055/a-2193-0922","DOIUrl":"https://doi.org/10.1055/a-2193-0922","url":null,"abstract":"EXERT-BC is a dose-escalated resistance training regimen created to improve body composition, strength, and balance in women treated for breast cancer. Herein, we report the interim analysis. Women treated for BC underwent this 3-month exercise regimen in an exercise oncology facility with continual monitoring of load and strength. 20 women completed the IRB-approved protocol, with a mean age of 57 years (range 41-74). Concurrent therapies included anti-estrogen therapy (73%), chemotherapy (14%), and radiotherapy (23%). 27% of women endorsed prior exercise. Subjects missed an average of 1.75 classes (range 0-7), with all meeting adherence over 75%. No injuries or adverse events were reported aside from muscle soreness and 2 days of knee pain. Significant differences in body composition at completion included reduced body fat (38.2% vs 36.7%, p=0.003), and increased muscle mass (33.1% vs 37.1%, p<0.001), functional mobility screening (9.82 vs 11.73, p=0.018), and Y-balance (left: 72.4 vs 85.3, p=0.001; right: 70.3 vs 85.2. p<0.001). Significant increases in load were demonstrated: split squat (p<0.001), trap bar deadlift (p=0.035), inclined dumbbell press (p<0.001), and bird dog rows (p<0.001). A dose-escalated resistance training in women with BC is safe and feasible, endorsing significant improvements across body composition, balance, and strength.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136034687","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

Recovery process for sports-related concussion assessed with precise ocular motility 精确眼动评估运动相关脑震荡的恢复过程

Sports medicine international open Pub Date : 2023-10-17 DOI: 10.1055/a-2183-1077

Hidetaka Onodera, Takuma Takuma, Kanaka Yatabe, Hiroto Fujiya, Hidetoshi Murata

{"title":"Recovery process for sports-related concussion assessed with precise ocular motility","authors":"Hidetaka Onodera, Takuma Takuma, Kanaka Yatabe, Hiroto Fujiya, Hidetoshi Murata","doi":"10.1055/a-2183-1077","DOIUrl":"https://doi.org/10.1055/a-2183-1077","url":null,"abstract":"Ocular motility has been linked to Sports Concussion Assessment Tool 5 scores. However, the link between ocular motility changes and assessment result changes remains unclear. Hence, we investigated that potential link in patients with sports-related concussions. We retrospectively included participants aged ≥18 years who were diagnosed with a sports-related concussion. They underwent smooth pursuit eye movement assessment for allocation to good improvement group (rate of fundamental frequency ≥15%) or minor improvement (<15%) groups. Sports Concussion Assessment Tool 5 scores were determined at baseline and two weeks later, and score changes were compared between the groups. Thirteen men (mean±standard deviation age: 20.6±5.0 years) were included: eight (19.0±4.5 years) in the good improvement group and five (20.6±5.7 years) in the minor improvement group. Symptom number (median=2.0 vs. 0.0), symptom severity (median=22.0 vs. 3.0), single-leg stance (median=4.0 vs. 0.5), tandem stance (median=1.0 vs. 0.0), and total errors (median=5.0 vs. 0.5) were worse (all p<0.05) in the minor improvement group. Smooth pursuit eye movement improvements measured using eye-tracking technology was linked to symptom recovery in patients with sports-related concussions. Therefore, ocular motility may be an objective indicator of sports-related concussions. Future studies with more patients are needed to confirm these findings.","PeriodicalId":74857,"journal":{"name":"Sports medicine international open","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136033624","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