Translational sports medicine最新文献_第7页

The effect of fear of reinjury on joint power distribution during a drop countermovement jump two years after an Achilles tendon rupture 在跟腱断裂两年后，担心再次受伤对跌落反动作跳跃中关节力量分配的影响

Translational sports medicine Pub Date : 2021-05-19 DOI: 10.1002/tsm2.261

U. Jónsdóttir, K. Briem, R. Tranberg, A. Brorsson

{"title":"The effect of fear of reinjury on joint power distribution during a drop countermovement jump two years after an Achilles tendon rupture","authors":"U. Jónsdóttir, K. Briem, R. Tranberg, A. Brorsson","doi":"10.1002/tsm2.261","DOIUrl":"https://doi.org/10.1002/tsm2.261","url":null,"abstract":"The incidence of Achilles tendon rupture (ATR) is increasing and at least 20% do not return to preinjury activity. The aim of the study was to evaluate biomechanical differences between those assigned to a Fear group and No‐Fear group based on fear of reinjury during activity after ATR, by evaluating a drop countermovement jump. Twenty‐five participants were evaluated 23.5 months after ATR. Peak values for eccentric and concentric joint power were identified for ankles, knees, and hips. Participants were assigned to Fear group or No‐Fear group depending on their answers to a question regarding fear of reinjury during activities. Interlimb peak power was compared between groups for landing and push‐off with a mixed model ANOVA. Compared to the No‐fear group, the Fear group presented significant decreased power in the ankle (P < .001) but increased power in the knee (P < .001) in involved limb during both phases. A 3‐way interaction was found between group, side, and phase for frontal plane hip power (P < .001). Our findings indicate that those who are afraid of reinjury demonstrate higher interlimb differences compared to those who are not. They also compensate for ankle deficits with greater knee and hip power.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"667 - 674"},"PeriodicalIF":0.0,"publicationDate":"2021-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.261","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48207836","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: 1

Comparisons of countermovement jump force profiles in youth athletes 青年运动员反动作跳跃力分布的比较

Translational sports medicine Pub Date : 2021-05-08 DOI: 10.1002/tsm2.257

Zachary M. Gillen, M. McHugh, Marni E. Shoemaker, J. Cramer

{"title":"Comparisons of countermovement jump force profiles in youth athletes","authors":"Zachary M. Gillen, M. McHugh, Marni E. Shoemaker, J. Cramer","doi":"10.1002/tsm2.257","DOIUrl":"https://doi.org/10.1002/tsm2.257","url":null,"abstract":"The purposes of this study were to determine whether countermovement jump (CMJ) force profiles differ for jumps in which peak force occurred at the low position of the countermovement (LP) compared to jumps in which peak force did not occur at the low position of the countermovement (NLP), and compare relationships among CMJ and isokinetic metrics between groups. Thirty‐nine male and female youth athletes between 9‐ and 17‐year‐old participated. Participants completed CMJs and isokinetic knee extensions from 60 to 300°·s−1. Ground reaction forces were collected during CMJs to quantify unweighting, braking, propulsive, and performance metrics. Torque and power were quantified during all isokinetic knee extensions. Forty‐one percent of participants had LP force profiles, while 59% of participants had NLP force profiles. The LP group had more efficient unweighting and braking phase metrics than the NLP group, while the NLP group had greater isokinetic torque and power, and greater relationships between CMJ and isokinetic metrics, than the LP group. CMJs from the LP group represent more biomechanically efficient jumps than CMJs from the NLP group. Additionally, the NLP group may be more reliant on concentric force production during the CMJ, while the LP group may have more efficient storage and utilization of elastic energy.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"646 - 656"},"PeriodicalIF":0.0,"publicationDate":"2021-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.257","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44758859","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: 4

Eucapnic voluntary hyperpnea challenge can support management of exercise‐induced bronchoconstriction in elite swimmers 优觉性自主呼吸亢进挑战可以支持优秀游泳运动员运动诱导的支气管收缩的管理

Translational sports medicine Pub Date : 2021-05-08 DOI: 10.1002/tsm2.258

W. Gowers, G. Evans, Jane Carré, Matt Ashman, A. Jackson, J. Hopker, J. Dickinson

引用次数: 4

A retrospective analysis of injury risk in physical education teacher education students between 2000‐2014 2000-2004年体育师范生伤害风险的回顾性分析

Translational sports medicine Pub Date : 2021-05-04 DOI: 10.1002/tsm2.256

M. Barendrecht, C. Barten, B. Smits-Engelsman, W. Mechelen, E. Verhagen

{"title":"A retrospective analysis of injury risk in physical education teacher education students between 2000‐2014","authors":"M. Barendrecht, C. Barten, B. Smits-Engelsman, W. Mechelen, E. Verhagen","doi":"10.1002/tsm2.256","DOIUrl":"https://doi.org/10.1002/tsm2.256","url":null,"abstract":"To identify primary target groups for injury prevention in physical education teacher education (PETE) students, risk differences between subgroups by sex and curriculum years were compared in a retrospective cohort study (2000‐2014). Injuries recorded by healthcare professionals at the medical facility of a Dutch PETE college were used to calculate overall, intra‐ and extracurricular injury prevalence per sex, curriculum years, and semesters and to compare these by logistic regression analyses. Of 1083 PETE students, 599 (55.3%) reported at least one injury during their curriculum (60.0% intracurricular). Female students had a higher risk for overall (OR 2.29, 95%CI 1.77‐2.96) and for intracurricular injuries (OR 3.12, 95%CI 2.41‐4.03), but not for extracurricular injuries. Compared to the freshman year, injury risk dropped during the consecutive years (OR 0.56, 95%CI 0.46‐0.67; OR 0.33, 95%CI 0.27‐0.41; OR 0.04, 95%CI 0.03‐0.07, respectively). The first semesters of the freshman and second year showed higher injury prevalence compared to two out of three consecutive semesters (P < .006). Primary target groups for injury preventive measures are freshman and female PETE students. Factors contributing to the predominantly higher intracurricular injury risks, most notably in female students, need to be investigated in prospective cohort studies, regardless of sex.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"597 - 605"},"PeriodicalIF":0.0,"publicationDate":"2021-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43416690","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: 2

In vitro evaluation of the response of human tendon-derived stromal cells to a novel electrospun suture for tendon repair. 体外评价人肌腱源性基质细胞对新型电纺丝肌腱修复缝线的反应。

Translational sports medicine Pub Date : 2021-05-01 DOI: 10.1002/tsm2.233

Andrey Nezhentsev, Roxanna E Abhari, Mathew J Baldwin, Jolet Y Mimpen, Edyta Augustyniak, Mark Isaacs, Pierre-Alexis Mouthuy, Andrew J Carr, Sarah J B Snelling

{"title":"In vitro evaluation of the response of human tendon-derived stromal cells to a novel electrospun suture for tendon repair.","authors":"Andrey Nezhentsev, Roxanna E Abhari, Mathew J Baldwin, Jolet Y Mimpen, Edyta Augustyniak, Mark Isaacs, Pierre-Alexis Mouthuy, Andrew J Carr, Sarah J B Snelling","doi":"10.1002/tsm2.233","DOIUrl":"https://doi.org/10.1002/tsm2.233","url":null,"abstract":"Recurrent tears after surgical tendon repair remain common. Repair failures can be partly attributed to the use of sutures not designed for the tendon cellular niche nor for the promotion of repair processes. Synthetic electrospun materials can mechanically support the tendon whilst providing topographical cues that regulate cell behaviour. Here, a novel electrospun suture made from twisted polydioxanone (PDO) polymer filaments is compared to PDS II, a clinically-used PDO suture currently utilised in tendon repair. We evaluated the ability of these sutures to support the attachment and proliferation of human tendon-derived stromal cells using PrestoBlue and Scanning Electron Microscopy. Suture surface chemistry was analysed using X-ray Photoelectron Spectroscopy. Bulk RNA-Seq interrogated the transcriptional response of primary tendon-derived stromal cells to sutures after 14 days. Electrospun suture showed increased initial cell attachment and a stronger transcriptional response compared to PDS II, with relative enrichment of pathways including mTorc1 signalling and depletion of epithelial mesenchymal transition. Neither suture induced transcriptional upregulation of inflammatory pathways compared to baseline. Twisted electrospun sutures therefore show promise in improving outcomes in surgical tendon repair by allowing increased cell attachment whilst maintaining an appropriate tissue response.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 3","pages":"409-418"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.233","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9520161","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: 7

Dual vs single force plate analysis of human drop jumping 人跌落跳跃的双力板与单力板分析

Translational sports medicine Pub Date : 2021-05-01 DOI: 10.1002/tsm2.255

S. Jørgensen, J. Bojsen-Møller, Thue Skalgard, H. B. Olsen, P. Aagaard

{"title":"Dual vs single force plate analysis of human drop jumping","authors":"S. Jørgensen, J. Bojsen-Møller, Thue Skalgard, H. B. Olsen, P. Aagaard","doi":"10.1002/tsm2.255","DOIUrl":"https://doi.org/10.1002/tsm2.255","url":null,"abstract":"The aim was to develop a Drop Jump (DJ) protocol on dual force plate recordings (Dual Force Plate method: DFPM) to assess lower limb power production and quantify impact loading, and range of body center of mass (BCM) excursion during human DJ, and to examine if single‐plate analysis (Reverse Integration Method: RIM) was a valid alternative. Nineteen male subjects performed DJs from an elevated platform (48 cm). Kinematic (BCM displacement and velocity, rebound jump height) and kinetic (BCM power, work, rate of force development (RFD), lower limb stiffness (LLS)) variables were obtained by force plate recording during the drop take‐off phase (DFPM) and rebound phase (RIM, DFPM). DFPM and RIM did not differ at the group level for any outcome parameter. However, large intra‐individual differences in BCM displacement were observed between DFPM and RIM (CV 9‐10%) as well as for rebound jump height, LLS, and work performed on BCM (CV 9.8‐14%). A majority of the remaining variables demonstrated low intra‐individual variability between the two methods (r= 0.73‐0.96, CV 1‐5%). In conclusion, No systematic differences were revealed between DFPM and RIM, suggesting that RIM is a valid approach for assessing DJ performance. Substantial between‐method intra‐individual variability was noted for key outcome parameters.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"637 - 645"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.255","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42374139","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: 2

Issue Information 问题信息

Translational sports medicine Pub Date : 2021-05-01 DOI: 10.1002/tsm2.259

引用次数: 0

A molecular characterization of inflammation in the bicipital tunnel 肱二头肌隧道炎症的分子特征

Translational sports medicine Pub Date : 2021-05-01 DOI: 10.1002/tsm2.224

A. Campbell, Samuel A. Taylor, E. O’Dea, Mary E. Shorey, R. Warren, S. O’Brien

{"title":"A molecular characterization of inflammation in the bicipital tunnel","authors":"A. Campbell, Samuel A. Taylor, E. O’Dea, Mary E. Shorey, R. Warren, S. O’Brien","doi":"10.1002/tsm2.224","DOIUrl":"https://doi.org/10.1002/tsm2.224","url":null,"abstract":"The pathophysiology of extra‐articular biceps disease is not fully understood. The purpose of the study was to assess molecular evidence of inflammation, degradation, and nociception within the 3 separate anatomic zones of the extra‐articular biceps tendon and its confining tunnel. Arthroscopic biopsies were taken from the bicipital tunnel from 11 patients with suspected biceps‐labrum complex disease undergoing subdeltoid biceps transfer to the conjoint tendon. Tissue was analyzed for mRNA expression of various inflammatory mediators including interleukin‐6, interleukin‐1β, transforming growth factor‐β (TGF‐β), matrix metalloproteinase‐13, and substance P precursor. Extra‐articular tissue was compared with intra‐articular tendon (internal control) to determine fold change in expression. Compared to intra‐articular tendon, extra‐articular biceps tendon and synovium have increased levels of these aforementioned mediators, significantly TGF‐β (P = .012). In patients with clinical history of long head of the biceps tendon tendinopathy as well as arthroscopic findings of synovitis, tear, and loose bodies, pro‐inflammatory and degenerative cytokines were upregulated in the extra‐articular tendon. Inflammatory cytokines, degenerative mediators, and pain molecules associated with nociception were found within both the extra‐articular long head of biceps tendon and its constraining fibro‐osseous bicipital tunnel in patients with clinically evident biceps‐labral complex disease.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"327 - 336"},"PeriodicalIF":0.0,"publicationDate":"2021-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.224","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41575204","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

Long‐term outcome of conservatively treated lower limb apophyseal injuries in children and adolescents: A systematic review 儿童和青少年下肢棘突损伤保守治疗的长期疗效:一项系统综述

Translational sports medicine Pub Date : 2021-04-26 DOI: 10.1002/tsm2.252

Elien Apers, M. Rombauts, S. Bogaerts

{"title":"Long‐term outcome of conservatively treated lower limb apophyseal injuries in children and adolescents: A systematic review","authors":"Elien Apers, M. Rombauts, S. Bogaerts","doi":"10.1002/tsm2.252","DOIUrl":"https://doi.org/10.1002/tsm2.252","url":null,"abstract":"Apophyseal injuries are generally believed to run a self‐limiting course, suggesting conservative treatment is indicated. We summarized the long‐term consequences of lower limb apophyseal injuries after conservative treatment. We conducted a systematic review using the Cochrane methodology, and reported findings according to PRISMA. MEDLINE, EMBASE, Cochrane CENTRAL, PEDro, and SPORTDiscus were searched. Studies had to include participants aged 8‐18 years old, with a clinical diagnosis of apophyseal injury in the lower limb, more specifically Sever's disease, Osgood‐Schlatter disease, or Sinding‐Larsen‐Johansson disease, non‐surgically treated, with a minimum follow‐up time of 1 year, and with at least one of the following outcome measures: pain, secondary structural changes, functional outcome, participation in sports, and recurrent or subsequent injury. PROSPERO registration number: CRD42020146412. Twelve studies on Osgood‐Schlatter disease, three studies on Sever's disease, and no studies on Sinding‐Larsen‐Johansson disease met inclusion criteria. Results of studies varied widely. Important limitations were heterogeneity between studies and lack of high‐quality research studies. Apophyseal injuries do not always appear to be self‐limiting, with some patients experiencing pain, secondary structural changes, a worse functional outcome, and difficulty resuming sports after more than 1 year of follow‐up.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"565 - 586"},"PeriodicalIF":0.0,"publicationDate":"2021-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.252","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41997714","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

Assessing acute:chronic workload ratio methodologies for the prediction of knee pain in men's elite volleyball 用于预测男子精英排球膝关节疼痛的急慢性负荷比评估方法

Translational sports medicine Pub Date : 2021-04-12 DOI: 10.1002/tsm2.250

Faraz Damji, Kerry J MacDonald, M. Hunt, J. Taunton, A. Scott

{"title":"Assessing acute:chronic workload ratio methodologies for the prediction of knee pain in men's elite volleyball","authors":"Faraz Damji, Kerry J MacDonald, M. Hunt, J. Taunton, A. Scott","doi":"10.1002/tsm2.250","DOIUrl":"https://doi.org/10.1002/tsm2.250","url":null,"abstract":"Predicting sports injuries is a complex phenomenon given the multitude of risk factors involved and the need for an inciting event. Recent evidence suggests that the acute:chronic workload ratio (ACWR) is a potentially useful tool for quantifying athlete workloads, with athletes at increased risk of injury when the ACWR is higher relative to a lower ACWR. While several team sports have been studied in the ACWR literature, there is a paucity of studies that focus on volleyball athletes, and no studies that use knee pain as an outcome. Furthermore, controversy exists as inconsistent results among studies may be attributed to differences in calculating the ACWR. Our objective was to assess different definitions of the ACWR for predicting knee pain in elite volleyball athletes. We expected to see agreement with the literature in that ACWR would be positively associated with knee pain. We conducted a retrospective, exploratory analysis on a data set from a University varsity volleyball team. Our mixed effect modeling indicated that the coefficient estimates for the ACWR variants were small and statistically insignificant. The variant used did not have a major influence on the relationship with knee pain score, and the strength of the relationship was weak.","PeriodicalId":75247,"journal":{"name":"Translational sports medicine","volume":"4 1","pages":"677 - 683"},"PeriodicalIF":0.0,"publicationDate":"2021-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/tsm2.250","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46336498","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