Journal of Sports Medicine最新文献

{"title":"Analysis of Sinus Variability in a Group of Cameroonian Athletes","authors":"Deugoue F. Y. Djientcheu, M. Azabji-Kenfack, P. M. Kameni, D. C. Bilanda, Membe U. Femoe, M. C. Ngoungoure, P. Kamtchouing, D. Dzeufiet","doi":"10.1155/2024/1752677","DOIUrl":"https://doi.org/10.1155/2024/1752677","url":null,"abstract":"Background Heart rate variability (HRV) analysis is a useful method for assessing the heart's ability to adapt to endogenous and exogenous loads. Data from African population on HRV are scarce and even more so in sports populations. This study aimed to compare cardiac autonomic modulation response in Cameroonian athletes and sedentary. Methodology. We conducted a prospective and analytical study in sports teams in the city of Yaoundé, Cameroon. The participants in our study were divided in three groups; people who practiced little or no sporting activity (sedentary as group 1) or who were regularly physically active as part of a sports team (footballers or handballers as second and third groups). They had to be aged 18 or over and have given their informed consent. Heart rate (HR) was continuously recorded at rest for ten minutes and then transferred to a computer equipped with Kubios HRV Standard software for analysis. Means ± mean standard errors were compared using the one-way ANOVA test, followed by Tukey's post-test. The significance threshold was set at 0.05. Results Of the 60 people selected to participate to our study, 75.0% were sportsmen (40.0% handball players and 35.0% footballers). The resting HR of sedentary people was higher (p < 0.001) than that of footballers and handball players. The SDNN, RMSSD, and pNN50 of sedentary people (16.22 ± 1.04; 9.97 ± 0.46; and 0.16 ± 0.06) were lower than those of footballers (30.13 ± 2.93; 20.61 ± 2.46; and 2.99 ± 0.63, with p < 0.001) and handball players (29.00 ± 1.86; 16.44 ± 1.16; and 2.15 ± 0.38, with p < 0.001 and p < 0.05 respectively). Absolute and relative very-low-frequency (VLF) power, absolute low and high-frequency (LF and HF) power, as well as total power (TP) were lower in sedentary people (3.66 ± 0.08 and 16.21 ± 0.64; 5.04 ± 0.15 and 2.50 ± 0.16 and 246.40 ± 18.04) compared to footballers (5.09 ± 0.24 and 26.87 ± 1.76; 5.85 ± 0.32 and 3.92 ± 0.22 and 836.10 ± 103.70, with p < 0.001, p < 0.01, and p < 0.001) and handball players (4.86 ± 0.16 and 30.82 ± 2.67; 6.03 ± 0.19 and 3.46 ± 0.16 and 927.30 ± 94.12, with p < 0.001, p < 0.05, p < 0.01, and p < 0.001). The LF/HF ratio was 12.1% and 20.1% lower in sedentary people (7.55 ± 0.58) compared with footballers (8.46 ± 0.50) and handball players (9.07 ± 0.60), respectively. Conclusion Sportsmen showed greater parasympathetic and global modulation when compared to sedentary people.","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"114 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140379398","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":"The 50 Most Cited Papers on Rugby since 2000 Reveal a Focus Primarily on Strength and Conditioning in Elite Male Players","authors":"K. Hunzinger, Eric Schussler","doi":"10.1155/2023/6991769","DOIUrl":"https://doi.org/10.1155/2023/6991769","url":null,"abstract":"We sought to conduct a bibliometric analysis and review of the most cited publications relating to rugby since 2000 in order to identify topics of interest and those that warrant further investigations. Clarivate Web of Science database was used to perform a literature search using the search term “rugby.” The top 200 papers by citation count were extracted and reviewed for the inclusion criteria: all subjects were rugby players. The top 50 manuscripts were included for analysis of author, publication year, country of lead authors, institution, journal name and impact factor, topic, participant sex, and level of rugby. The total number of citations was 9,071 (average of 181.4 citations/article), with an average journal impact factor of 7.21; the top article was cited 407 times at the time of analysis. The most frequent publication was the Journal of Strength and Conditioning Research (26%), followed by the British Journal of Sports Medicine (20%) and the Journal of Sports Sciences (18%). Forty-eight (96%) of the manuscripts contained only male subjects, with 1 manuscript including females only and 1 manuscript containing mixed sexes. Thirty-three (66%) of the manuscripts focused on professional rugby players, with the next highest player group being mixed levels (10%). Twenty-eight (56%) concentrated on topics regarding strength and conditioning, 11 (22%) on injury, and 4 (8%) on physiology. Despite rugby being one of the most injurious sports and community players representing the largest component of the player pool, most of the top-cited rugby articles are cohort studies of professional male athletes focused on performance and strength and conditioning, noting the bias in research towards socially relevant topics that may not impact the majority of stakeholders and long-term health of rugby athletes. These findings highlight the need for further research among women and community athletes and on topics in injury prevention.","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":" 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138961476","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":"Exploring the Impact of a Global Pandemic (COVID-19) on Factors Impacting the Resilience of Top-Tier London Hockey Players.","authors":"Philippa Boag Sharland,&nbsp;Justin Haroun,&nbsp;Ayazullah Safi","doi":"10.1155/2023/5346846","DOIUrl":"https://doi.org/10.1155/2023/5346846","url":null,"abstract":"<p><strong>Introduction: </strong>The cessation of all professional and amateur sport due to the COVID-19 pandemic had a dramatic effect on the mental and physical capacity of the United Kingdom populace, but its impact was arguably felt more deeply by the athletic population. Thus, this research explored which limiting factors were experienced by team hockey players during the national lockdowns (1.0-3.0) with the objective of enabling coaches and team management to better support and protect players' physiological and psychological resilience in return to play.</p><p><strong>Methods: </strong>Data were collected over 12 weeks during the 3rd UK lockdown (March 2021) from two top-tier London clubs. Hockey players (<i>n</i> = 63) completed an online questionnaire that included validated tests for self-compassion, sport motivation, and a custom open-ended style qualitative questionnaire on nutrition and lifestyle behaviour. Mean self-compassion, motivation scores, and common indicative limiting factors were evaluated and ranked according to significance.</p><p><strong>Results: </strong>High \"rebound resilience\" was found with low amotivation scores (<i>m</i> = 8.33) and strong affinity for their sport identifying with the statement \"because participation in my sport is an integral part of my life\" with correspondingly high integrated regulation scores (<i>m</i> = 21.43). Participants' self-compassion showed the highest scores in mindfulness (<i>m</i> = 3.66) and lowest in self-kindness (<i>m</i> = 2.84) indicating a common trait in athletes for self-criticism. The highest limiting factor was cited as \"no social outlets, social interactions, or seeing friends and family\".</p><p><strong>Conclusion: </strong>This study revealed the critical role that social connectedness plays in promoting resilience and enhancing motivation in return to play during extremely challenging circumstances. When the social outlet is absent, enhancing resilience factors with mindfulness, self-compassion, and the creation of a more facilitative environment where player welfare takes priority are potential strategies to support players when they are unable to participate in their sport.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2023 ","pages":"5346846"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10348855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9826434","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":"Anabolic-Androgenic Steroid Misuse: Mechanisms, Patterns of Misuse, User Typology, and Adverse Effects.","authors":"Jack B Ding,&nbsp;Marcus Z Ng,&nbsp;Steven S Huang,&nbsp;Mark Ding,&nbsp;Kevin Hu","doi":"10.1155/2021/7497346","DOIUrl":"https://doi.org/10.1155/2021/7497346","url":null,"abstract":"<p><p>Anabolic-androgenic steroids (AAS) encompass a broad group of natural and synthetic androgens. AAS misuse is highly prevalent on a global scale, with the lifetime prevalence of AAS misuse in males being estimated to be around 6%, with 15 to 25% of male gym attendees using it at any one time. AAS are associated with sudden cardiac death, neuropsychiatric manifestations, and infertility. The average AAS user is unlikely to voluntarily declare their usage to a physician, with around 1 in 10 actively engaging in unsafe injection techniques. The aim of this paper is to review the current evidence base on AAS with emphasis on mechanisms of action, adverse effects, and user profiles that are most likely to engage in AAS misuse. This paper also reviews terminologies and uses methods specific to the AAS user community.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"7497346"},"PeriodicalIF":0.0,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8683244/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39741155","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":"A Comparative Study of Hematological Parameters of Endurance Runners at Guna Athletics Sport Club (3100 Meters above Sea Level) and Ethiopian Youth Sport Academy (2400 Meters above Sea Level), Ethiopia.","authors":"Zelalem Tilahun Muche,&nbsp;Diresibachew Haile Wondimu,&nbsp;Milkessa Bayissa Midekssa,&nbsp;Endeshaw Chekol Abebe,&nbsp;Teklie Mengie Ayele,&nbsp;Ediget Abebe Zewdie","doi":"10.1155/2021/8415100","DOIUrl":"https://doi.org/10.1155/2021/8415100","url":null,"abstract":"<p><strong>Introduction: </strong>Endurance running performance is dependent upon hematological, physiological, anthropometrical, diet, genetic, and training characteristics. Increased oxygen transport and efficiency of tissue in extracting oxygen are the major determinants to competitions that require endurance. Thus, altitude training is often employed to increase blood oxygen-carrying capacity to improve sea-level endurance performance. This study aimed to compare hematological parameters of endurance runners' training at different clubs with different altitudes (Guna Athletics Sport Club at Guna (3100 meter above sea level) and Ethiopian Youth Sport Academy at Addis Ababa (2400 meter above sea level)).</p><p><strong>Methods: </strong>A comparative cross-sectional study was conducted at GASC and EYSA. Data were collected from a total of 102 eligible study subjects (26 runners and 25 controls at Guna and 26 runners and 25 controls at Addis Ababa) from May to October 2019. About 3 ml of the venous blood was drawn from the antecubital vein by aseptic procedure and analyzed using a hematology analyzer (DIRUI BCC-3000B, China). One-way ANOVA and independent-sample <i>t</i>-tests were used to compare means.</p><p><strong>Result: </strong>Male runners in Guna had significantly higher hemoglobin (Hgb), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), and white blood cell (WBC) count than male runners in Addis Ababa. Besides, female runners in Guna had significantly higher MCH and MCHC than female runners in Addis Ababa. However, there were no significant differences between Guna and Addis Ababa runners in red blood cell (RBC) count, Hct, MCV, and platelet count in both sexes, while Hgb and WBC count in females.</p><p><strong>Conclusion: </strong>Decisively, Guna Athletics Sport Club endurance runners had significantly higher hematological parameters than Ethiopian Youth Sport Academy endurance runners. This provides invaluable information for coaches and sport physicians to monitor the hematological profile and the health status of an athlete living and training at different altitudes.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"8415100"},"PeriodicalIF":0.0,"publicationDate":"2021-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8635926/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39695872","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":"Training for Marathons during a Marathon Pandemic: Effect of the COVID-19 Pandemic on Fitness among High-Level Nonelite Runners.","authors":"Martin E Matsumura,&nbsp;Bryan Martin,&nbsp;Thomas Matsumura,&nbsp;Ataul Qureshi","doi":"10.1155/2021/9682520","DOIUrl":"https://doi.org/10.1155/2021/9682520","url":null,"abstract":"<p><strong>Background: </strong>The COVID-19 pandemic has had a profound effect on all aspects of life, including physical fitness and well-being of the general population. In the present study, we assessed the effect of the pandemic on the subjective and objective fitness of high-level nonelite runners.</p><p><strong>Methods: </strong>The MASTERS Athletic Study is an ongoing survey of training and health habits of high-level nonelite runners, the majority of whom compete in marathons and other extreme endurance events. We invited participants to a web-based questionnaire regarding training and fitness during the COVID-19 pandemic. Comparisons were made between subjective and objective fitness as well as well as the relationship of prepandemic training volume and history of COVID-19 on change in fitness during the pandemic, using Mann-Whitney rank-sum tests and chi-square tests for nonparametric and categorical variables, respectively.</p><p><strong>Results: </strong>A total of 189 runners completed the survey, of whom 26 (13.8%) reported prior diagnosis with COVID-19. In terms of the subjective sense of fitness compared to before the pandemic, 49 (25.9%) reported they were less fit, 55 (29.1%) reported they were more fit, and 85 (45.0%) reported their fitness was unchanged. These assessments correlated well with objective measurement of training volume in MET-min/week. Runners with improved fitness at present had a lower calculated training volume before the pandemic versus those who reported unchanged or worsened fitness. There was no relationship between the report of prior COVID-19 and either subjective or objective measures of fitness.</p><p><strong>Conclusion: </strong>The COVID-19 pandemic has had a variable effect on the fitness of high-level nonelite runners. We found an inverse relationship between baseline training volume and the likelihood of runners reporting improved fitness and no relationship between a history of COVID-19 and change in fitness through the pandemic. Understanding the effect of the COVID-19 pandemic on athletic fitness will help guide strategies to maintain physical health and wellness through future public health crises.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"9682520"},"PeriodicalIF":0.0,"publicationDate":"2021-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8492274/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39498535","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":"Effects of High-Intensity Interval Training Protocols on Liver Enzymes and Wellness in Women.","authors":"Timothy A Rengers,&nbsp;Samantha C Orr,&nbsp;Charles R C Marks,&nbsp;Tamara Hew-Butler,&nbsp;Myung D Choi,&nbsp;Scotty J Butcher,&nbsp;Dorin Drignei,&nbsp;Elise C Brown","doi":"10.1155/2021/5554597","DOIUrl":"https://doi.org/10.1155/2021/5554597","url":null,"abstract":"<p><strong>Background: </strong>Single-modality, high-intensity interval training (HIIT) using traditional cardiorespiratory exercise selection has been found to provide similar and sometimes superior cardiometabolic effects compared with moderate-intensity continuous training. However, little is known regarding the cardiometabolic and psychosocial effects of HIIT using resistance training modalities. Therefore, this study aims to compare the effects of HIIT using rowing (R-HIIT) and multimodal HIIT (MM-HIIT) using resistance training on liver enzymes, cardiometabolic risk factors, and psychosocial outcomes.</p><p><strong>Method: </strong>Recreationally active females with a body mass index <30 kg/m² (<i>N</i> = 16, 23.0 ± 5.9 years) were randomized into a MM-HIIT or R-HIIT group and completed a 12-week HIIT intervention (ClinicalTrials.gov registration number: https://clinicaltrials.gov/ct2/show/NCT03093441) using principles of social cognitive theory (SCT). Participants completed pre- and postintervention measurements on anthropometrics, resting heart rate, blood pressure, blood measures (lipids, liver enzymes, and glucose), exercise self-efficacy, and perceived wellness. Analysis of covariance was used to examine differences in postintervention measures between groups after controlling for baseline values, waist circumference, and waist-to-height ratio.</p><p><strong>Results: </strong>R-HIIT group had significantly decreased alanine aminotransferase (mean difference = 13.16, <i>P</i>=0.013, effect size (ES) = 0.44, confidence interval (CI) = 3.40 to 22.92) and aspartate aminotransferase (mean difference = 10.79, <i>P</i>=0.024, ES = 0.38, CI = 1.67 to 19.90) levels compared with the M-HIIT group, and the whole group had improved wellness scores (14.72 ± 2.6 to 16.89 ± 2.76, <i>P</i>=0.002).</p><p><strong>Conclusion: </strong>R-HIIT may be an effective preventative method for improving liver health in females without obesity. When using principles of SCT, HIIT may enhance overall well-being.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"5554597"},"PeriodicalIF":0.0,"publicationDate":"2021-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8110421/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38997012","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":"Sleep Quality's Effect on Vigilance and Perceptual Ability in Adolescent and Adult Athletes.","authors":"Vasileios T Stavrou, Kyriaki Astara, Konstantinos N Tourlakopoulos, Zoe Daniil, Konstantinos I Gourgoulianis, Konstantinos Kalabakas, Dimitrios Karagiannis, George Basdekis","doi":"10.1155/2021/5585573","DOIUrl":"10.1155/2021/5585573","url":null,"abstract":"<p><p>The aim of the study was to investigate the effect of sleep quality in cognitive domains of perceptual ability after exhausting exercise in adolescent and adult athletes. Eighty-six male professional soccer players were included in our study and divided into two groups: adolescents (age: 17.3 ± 0.2 yrs, body mass: 68.9 ± 7.9 kg, body fat: 9.9 ± 3.6 %) versus adults (age: 26.3 ± 5.2 yrs, body mass: 76.5 ± 7.2 kg, body fat: 10.3 ± 3.1 %). For each athlete, prior to cardiopulmonary exercise testing (CPET), anthropometric and morphological characteristics were recorded and Pittsburgh Sleep Quality Index (PSQI) questionnaire was answered. Immediately after CPET, all athletes underwent the perceptual ability test (PATest) for 30 sec and the sum of hits (rep/30 sec) and the time between a visual stimulus and the following stimulus (mean reaction time; RT, sec) were recorded. Oxygen uptake in maximal effort and in anaerobic threshold showed differences between hits (<i>P</i>=0.037) and RT (<i>P</i>=0.025). The variable of PSQI questionnaire \"<i>had bad dreams</i>\" showed correlation with hits (<i>P</i>=0.021) and RT (<i>P</i>=0.011) and the RT showed correlation with variables \"cannot breathe comfortably\" (<i>P</i>=0.041) and \"<i>...enthusiasm to get things done</i>\" (<i>P</i>=0.041). Adolescents showed poorer sleep quality (PSQI score: 5.7 ± 3.6 vs. 2.4 ± 2.6) compared to adults and slower reaction time (0.9 ± 0.1 vs. 0.8 ± 0.1 sec, <i>P</i>=0.029) compared to adolescent athletes with PSQI score ≥5.5. The variable of PSQI score in adolescents is related to HR in maximal effort (<i>r</i> = -0.364, <i>P</i>=0.032) and in adults is related to speed (<i>r</i> = -0.335, <i>P</i>=0.016). Perceptual ability, which requires sustained attention, vigilance, and motor coordination, is often negatively affected by restricted sleep, especially in adolescents.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"5585573"},"PeriodicalIF":0.0,"publicationDate":"2021-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8055422/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38941242","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":"Evidence That Sleep Is an Indicator of Overtraining during the Competition Phase of Adolescent Sprinters.","authors":"Eon H Campbell,&nbsp;Melanie Poudevigne,&nbsp;Shelly McFarlane,&nbsp;Lowell Dilworth,&nbsp;Rachael Irving","doi":"10.1155/2021/6694547","DOIUrl":"https://doi.org/10.1155/2021/6694547","url":null,"abstract":"<p><p>Although sleep disturbance is a common complaint in overtrained athletes, the role of sleep in the overtraining process is not clear. This study aimed (i) to compare sleep efficiency/quantity at the start of a competition phase in elite adolescent sprinters who adapted to prior training with that in those who maladapt and (ii) to examine the influence of prior training, fatigue, and sleep on performance through a moderated mediation model. Fatigue (via Profile of Mood State) and internal training load (via session rating of perceived exertion and duration of training as volume) were measured in 20 sprinters (mean age: 15.9 ± 1.7 years) across 4 mesocycles (baseline (T1); preparatory (T2); precompetitive (T3); and competitive (T4) phases), over 26 weeks. Performances were assessed during the competitive period (T3, T4), while sleep was monitored (via actigraphy) for a week during T4. It was inferred that sprinters who had increasingly greater fatigue and concomitant decrements in performance (35%) were maladapted to training and the remaining sprinters who improved fatigue and performance (65%) were adapted to training. Sleep efficiency (91 ± 3% vs. 82 ± 3%, <i>p</i> < 0.001) and quantity (425 ± 33 min vs. 394 ± 20 min, <i>p</i> < 0.001) at the start of T4 were significantly greater in sprinters who adapted. Moreover, higher prior training volume (mean of T1 to T3 training volume) was associated with lower sleep efficiency at the start of T4 (<i>R</i> ² = 0.55, <i>p</i> < 0.001) which was associated with poorer performance (<i>R</i> ² = 0.82, <i>p</i> < 0.001). Fatigue moderated the indirect effect of prior training volume on performance through its moderation of the effect of sleep efficiency on performance (<i>R</i> ² = 0.89, <i>p</i> < 0.001). Impaired sleep as a result of greater prior training volume may be related to performance decrements through fatigue. Athletes should improve sleep during periods of higher training volume to reduce fatigue for better adaptation to training.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2021 ","pages":"6694547"},"PeriodicalIF":0.0,"publicationDate":"2021-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8041504/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38896753","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":"Delivering Evidence-Based Online Concussion Education to Medical and Healthcare Professionals: The Concussion Awareness Training Tool (CATT).","authors":"Shelina Babul, Kate Turcotte, Maude Lambert, Gabrielle Hadly, Karen Sadler","doi":"10.1155/2020/8896601","DOIUrl":"10.1155/2020/8896601","url":null,"abstract":"<p><strong>Background: </strong>Medical and healthcare professionals report an important gap in their training and knowledge on concussion diagnosis and management. The Concussion Awareness Training Tool (CATT) for medical professionals provides evidenced-based training and resources, representing an important effort to fill this gap. The goal of the current article was to summarize and describe the general uptake of the 2018 relaunch of the CATT for medical professionals and to present results of a quality assurance/quality improvement (QA/QI) assessment including qualitative feedback from medical and healthcare professionals. <i>Methodology</i>. Tracking completions via certificates and Google Analytics were used to measure uptake over the first two years following the 2018 relaunch and promotion of CATT for medical professionals. Medical and healthcare professionals who had completed the CATT from the time of the relaunch on June 11, 2018, to July 31, 2019, were invited via e-mail to participate in the survey-based QA/QI assessment. Both quantitative and qualitative data were collected.</p><p><strong>Results: </strong>Year 1 saw 8,072 pageviews for the CATT for medical professionals landing page, increasing to 9,382 in Year 2. Eighty-nine medical and healthcare professionals who had completed the CATT for medical professionals participated in the QA/QI assessment. Results showed that 85% of respondents reported learning new information about concussion; 73% reported changing the way they diagnose, treat, or manage concussion; and 71% reported recommending the CATT to colleagues. Qualitative data also indicated highly favourable opinions and experiences.</p><p><strong>Conclusions: </strong>The CATT for medical professionals has demonstrated promise as a tool to promote knowledge translation practice and help fill the gap in concussion training and knowledge reported by medical and healthcare professionals.</p>","PeriodicalId":30574,"journal":{"name":"Journal of Sports Medicine","volume":"2020 ","pages":"8896601"},"PeriodicalIF":0.0,"publicationDate":"2020-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7773466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38804165","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}