JSAMS plus最新文献

{"title":"Isometric single-joint rate of force development shows trivial to small associations with jumping rate of force development, jump height, and propulsive duration","authors":"Bas Van Hooren ,&nbsp;Žiga Kozinc ,&nbsp;Darjan Smajla ,&nbsp;Nejc Šarabon","doi":"10.1016/j.jsampl.2022.100006","DOIUrl":"10.1016/j.jsampl.2022.100006","url":null,"abstract":"<div><h3>Objectives</h3><p>The association between single-joint isometric rate of force development (RFD_ISO) and jumping outcomes remain largely unexplored. Further, the importance of RFD assessed during jumping for jump height and duration (i.e. time from jump onset to take-off) remains ambiguous. We therefore investigated these associations in a large heterogenous sample.</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Methods</h3><p>Three-hundred-twenty-six male and female basketball and tennis players, and physical education students performed the bilateral squat jump (SJ) and both bilateral and unilateral countermovement jumps (CMJ). Single-joint RFD_ISO was assessed for the hip extensors, knee extensors and ankle extensors and associations between relevant outcomes were computed.</p></div><div><h3>Results</h3><p>Knee and hip extensors RFD_ISO showed small positive correlations with RFD_SJ and RFD_CMJ. Ankle extensors RFD_ISO showed a moderate positive correlation with RFD_SJ and RFD_CMJ. RFD_ISO showed small to moderate correlations with CMJ and SJ jump height, but trivial correlations with jump duration. Stepwise linear regression showed that a combination of RFD_ISO from different muscle groups explained a small to moderate variance in jump height (∼23–28%), duration (∼2–3%), and RFD during jumping (∼19–28%). RFD_SJ showed small positive and moderate negative correlations with SJ height and duration, respectively while these correlations were small and trivial for the CMJ.</p></div><div><h3>Conclusions</h3><p>The positive correlations between RFD during jumping and jump height, and negative correlation with jump duration imply that improving RFD during jumping could benefit jump performance. However, the mostly small correlations between single-joint RFD_ISO and jumping RFD suggests that single-joint RFD_ISO assessments provide only limited information regarding the RFD in sports-related movements.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100006"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000060/pdfft?md5=0be9f674d79eed246dee3698d5bfdfd9&pid=1-s2.0-S2772696722000060-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49254347","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}

{"title":"Age-related proprioceptive decline is not seen in lifelong skiing and snowboarding participants: Lessons for balanced active healthy ageing","authors":"Tracey J. Dickson ,&nbsp;Jeremy Witchalls ,&nbsp;F. Anne Terwiel ,&nbsp;Gordon Waddington ,&nbsp;Rachel Jaros","doi":"10.1016/j.jsampl.2022.100010","DOIUrl":"10.1016/j.jsampl.2022.100010","url":null,"abstract":"<div><h3>Objectives</h3><p>Ankle proprioception is important for effective human movement and thus active healthy aging. Chronic ankle instability (CAI) may be a contributing factor in proprioception decline. Proprioception and aging research indicate that there is age-related decline in proprioception, however, most research has been on activities conducted in flat, even, and unchanging environments. Thus, to support active healthy aging theory and practice across diverse real-world environments this research explores snowsports activities that are conducted in more dynamic environments and that may be participated in across the lifespan.</p></div><div><h3>Design</h3><p>This research used a cohort comparison approach to study whether regular snowsport participation (i.e., skiing and snowboarding) is correlated with i) age-related proprioception decline, and ii) proprioception deficits observed with CAI.</p></div><div><h3>Methods</h3><p>142 advanced and elite snowsport participants (age-range 12–70 years), were recruited over a two-year period. Participants completed a questionnaire that included: prior snowsport experience, ankle injury history and the Identification of Functional Ankle Instability scale (IdFAI). Lower limb proprioception was tested using the Active Movement Extent Discrimination Assessment (AMEDA) device.</p></div><div><h3>Results</h3><p>There were no significant differences in AMEDA scores between i) age categories; ii) those with or without CAI; nor iii) between females and males.</p></div><div><h3>Conclusions</h3><p>These results show that regular snowsport participation such as skiing and snowboarding, that occur in dynamic and changing environments, may i) protect against age-related proprioception decline, and ii) provide a rehabilitative effect for CAI. Thus, snowsport participation may be beneficial for active healthy aging and fall prevention.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100010"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000102/pdfft?md5=bee9edc77de552dd87726694a34fb290&pid=1-s2.0-S2772696722000102-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44915117","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}

{"title":"The effects of weather factors and altitude on physical and technical performance in professional soccer: A systematic review","authors":"Sarah Illmer,&nbsp;Frank Daumann","doi":"10.1016/j.jsampl.2022.100002","DOIUrl":"10.1016/j.jsampl.2022.100002","url":null,"abstract":"<div><p>Soccer, as the most popular sport in the world, is characterized by complex performance requirements and is influenced by many external factors. In order to record and systematize the scientific findings of the effects of weather factors and altitude on physical and technical performance in professional male and female soccer a systematic literature search was conducted in the relevant databases from 8th to 15th of February 2022. From 2.396 records, 150 were selected for detailed screening. 21 studies were included in this review that met the following inclusion criteria: professional male or female soccer players over 18 years of age; field study under real-life conditions; effects on physical and/or technical performance, influence of at least one weather-related factor. The selected articles considered different research objects, periods of time, technologies, or methods. Most publications investigated the factors of temperature, humidity and altitude and showed some significant effects on physical performance, while technical performance often did not change significantly. For all analysed environmental factors, it can be summarized that in different environmental conditions, professional soccer players may consciously adjust certain performance parameters to maintain key match characteristics throughout the whole game. This pacing strategy allows them to keep the influence of environmental factors in check as far as possible.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100002"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000023/pdfft?md5=cdefadc923fbcea700b66d9af32fbf11&pid=1-s2.0-S2772696722000023-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47309154","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}

{"title":"Health problem surveillance at the 17/U & 19/U Australian national netball championships","authors":"Erin Smyth ,&nbsp;Liam Toohey ,&nbsp;Alanna Antcliff ,&nbsp;Laura Piromalli ,&nbsp;Gordon Waddington ,&nbsp;Phillip Newman ,&nbsp;Juanita Weissensteiner ,&nbsp;Theo Niyonsenga ,&nbsp;Margot Rogers ,&nbsp;Michael Drew","doi":"10.1016/j.jsampl.2022.100003","DOIUrl":"10.1016/j.jsampl.2022.100003","url":null,"abstract":"<div><h3>Objective</h3><p>Surveillance of health problems at the 2019 17/U &amp; 19/U Australian Netball National Championships (ANNC) and compare this data with the 2018 17/U &amp; 19/U ANNC. Determine the rate for risk of low energy availability and poor sleep quality in athletes competing at the 2019 ANNC.</p></div><div><h3>Design</h3><p>Prospective observational cohort study.</p></div><div><h3>Method</h3><p>One hundred and ninety-two netball athletes were observed during a six-day tournament. Injuries were defined in three ways: 1) self-reported, 2) medical attention, and 3) sports incapacity. Medical attention health problems were recorded prospectively by the 16 team physiotherapists during the tournament and athlete self-reported health problem data was collected on four occasions (pre-tournament, post-tournament, 1-week post tournament and 4-weeks post tournament) using their smartphones. The same method was also used for health problem surveillance at the 2018 17/U &amp; 19/U ANNC. Athletes also completed the Low Energy Availability in Females Questionnaire (LEAF-Q) and Pittsburgh Sleep Quality Index (PSQI).</p></div><div><h3>Results</h3><p>Ninety-five medical attention injuries were sustained by 73 athletes, at an incidence rate of 82.5 injuries/1000 player competition hours. Ankle sprains (n ​= ​16) and lumbar pain (n ​= ​12) had the highest incidence of medical attention injuries. Thirty per cent of athletes started the tournament with a self-reported health problem. Twelve sports incapacity injuries were recorded, with concussion (n ​= ​5) and ACL rupture (n ​= ​4) the most frequent. Fifty percent of athletes who completed the LEAF-Q were identified as being at risk of having low energy availability and 57% of PSQI respondents demonstrated poor sleep quality. There was no association between injury and athletes who were identified as being at risk of low energy availability or having poor sleep quality.</p></div><div><h3>Conclusions</h3><p>Ankle sprains, lumbar pain, and foot blisters are the most frequent medical attention injury and concussion, and ACL rupture were the most frequent sports incapacity injuries in pre-elite netball athletes. Also, a high number of athletes were identified as being at risk of low energy availability (n ​= ​76, 50%) and poor sleep quality (n ​= ​74, 57%). These athletes were not at higher risk of injury compared to those that were not identified as being at risk of low energy availability and poor sleep quality.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100003"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000035/pdfft?md5=717b6fa42b85b79969e5e882491e27af&pid=1-s2.0-S2772696722000035-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44868415","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}

{"title":"Markerless motion capture: What clinician-scientists need to know right now","authors":"Naoaki Ito ,&nbsp;Haraldur B. Sigurðsson ,&nbsp;Kayla D. Seymore ,&nbsp;Elanna K. Arhos ,&nbsp;Thomas S. Buchanan ,&nbsp;Lynn Snyder-Mackler ,&nbsp;Karin Grävare Silbernagel","doi":"10.1016/j.jsampl.2022.100001","DOIUrl":"10.1016/j.jsampl.2022.100001","url":null,"abstract":"<div><p>Markerless motion capture (mocap) could be the future of motion analysis. The purpose of this report was to describe our team of clinicians and scientists’ exploration of markerless mocap (Theia 3D) and share data for others to explore (link: <span>https://osf.io/6vh7z/?view_only=c0e00984e94a48f28c8d987a2127339d</span><svg><path></path></svg>). Simultaneous mocap was performed using markerless and marker-based systems for walking, squatting, and forward hopping. Segment lengths were more variable between trials using markerless mocap compared to marker-based mocap. Sagittal plane angles were most comparable between systems at the knee joint followed by the ankle and hip. Frontal and transverse plane angles were not comparable between systems. The data collection experience using markerless mocap was simpler, faster, and user friendly. The ease of collection was in part offset by the added data transfer and processing times, and the lack of troubleshooting flexibility. If used selectively with proper understanding of limitations, markerless mocap can be exciting technology to advance the field of motion analysis.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100001"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/37/62/nihms-1851313.PMC9699317.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40488145","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}

{"title":"Cam morphology, hip range of motion and hip pain in young skiers and soccer players","authors":"Anna Swärd Aminoff ,&nbsp;Josefin Abrahamson ,&nbsp;Carl Todd ,&nbsp;Olof Thoreson ,&nbsp;Cecilia Agnvall ,&nbsp;Gauti Laxdal ,&nbsp;Ricard Pruna ,&nbsp;Pall Jonasson ,&nbsp;Leif Swärd ,&nbsp;Jón Karlsson ,&nbsp;Adad Baranto","doi":"10.1016/j.jsampl.2022.100005","DOIUrl":"10.1016/j.jsampl.2022.100005","url":null,"abstract":"<div><h3>Objectives</h3><p>To investigate hip pain, hip range of motion and the presence and size of cam morphology among young soccer players and skiers.</p></div><div><h3>Design</h3><p>Cross-sectional study.</p></div><div><h3>Methods</h3><p>The hip joints of young male soccer players and male and female skiers were examined clinically for hip range of motion (ROM) and with MRI (the presence of cam morphology). All participants answered questions about hip pain, debut age for training/competing and training frequency.</p></div><div><h3>Results</h3><p>Clinical examinations were performed on 135 athletes (60 male soccer players, 40 male skiers and 35 female skiers), of which 93 athletes had additional MRIs. Mean age was 17.7 (SD 1.2) years. Cam morphology (α-angle ≥60°) was significantly less present in female skiers (3%) compared with male skiers (38%, p ​&lt; ​0.001) and male soccer players (33%, p ​= ​0.03). The soccer players had significantly reduced internal and external hip rotation and self-reported hip pain, compared with the skiers. Female skiers had significantly greater hip ROM, compared with both male skiers and soccer players. A low positive correlation was found between cam morphology and hip pain in male skiers (r ​= ​0.42; p ​= ​0.014).</p></div><div><h3>Conclusions</h3><p>Female skiers had a lower prevalence of cam morphology compared with the male groups while no difference was found between the male skiers and soccer players. Young male soccer players had significantly reduced internal and external hip rotation and a lower grade of self-reported hip pain compared with male and female skiers.</p></div>","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100005"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000059/pdfft?md5=1dfc81ef142873dd6dcea353c2feeedf&pid=1-s2.0-S2772696722000059-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42536174","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}

{"title":"JSAMS Plus starts publishing","authors":"Tim Meyer (Editor in Chief)","doi":"10.1016/j.jsampl.2022.100008","DOIUrl":"10.1016/j.jsampl.2022.100008","url":null,"abstract":"","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100008"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000084/pdfft?md5=41dff6ecf01fb8cf5b84915088521ef5&pid=1-s2.0-S2772696722000084-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42581110","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}

{"title":"JSAMS Plus - Sports Medicine Australia","authors":"Jamie Crain (Chief Executive Officer)","doi":"10.1016/j.jsampl.2022.100004","DOIUrl":"10.1016/j.jsampl.2022.100004","url":null,"abstract":"","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 ","pages":"Article 100004"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2772696722000047/pdfft?md5=1c2e97733981488b91e1125ddfc594e1&pid=1-s2.0-S2772696722000047-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48119741","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}

{"title":"Factors associated with gym-based fitness injuries: A case-control study","authors":"L. Noteboom, E. Kemler, A. van Beijsterveldt, M. Hoozemans, F. V. D. van der Helm, E. Verhagen","doi":"10.1016/j.jsampl.2023.100032","DOIUrl":"https://doi.org/10.1016/j.jsampl.2023.100032","url":null,"abstract":"","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54711117","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}

{"title":"Deep learning-based 2D keypoint detection in alpine ski racing – A performance analysis of state-of-the-art algorithms applied to regular skiing and injury situations","authors":"Michael Zwölfer, Dieter Heinrich, K. Schindelwig, Bastian Wandt, Helge Rhodin, Jörg Spörri, W. Nachbauer","doi":"10.1016/j.jsampl.2023.100034","DOIUrl":"https://doi.org/10.1016/j.jsampl.2023.100034","url":null,"abstract":"","PeriodicalId":74029,"journal":{"name":"JSAMS plus","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"54711143","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}