Frontiers in Sports and Active Living最新文献

{"title":"Aligning extracurricular school activities with physical literacy: pilot evaluation through self-study of practice.","authors":"Louisa Schmittwilken, Jodi Harding-Kuriger, Johannes Carl","doi":"10.3389/fspor.2024.1415689","DOIUrl":"https://doi.org/10.3389/fspor.2024.1415689","url":null,"abstract":"<p><strong>Introduction: </strong>Although several important documents of education and health promotion on the international level favor practices geared toward physical literacy (PL), not all countries have yet gained experience with this holistic concept. Therefore, numerous stakeholders and practitioners who intend to align their interventional activities with PL will soon face the situation that there are no recommendations for their specific culture and language for how to design such programs. Given that such recommendations are also lacking for Germany, the goal of the present study within the uncontrolled pilot cycles of the PLACE study was (a) to describe the process of a female pedagogue (27 years old, previously unexperienced with PL) initially familiarizing herself with the PL concept and its implementation opportunities for the school setting, and (b) to retrace the process of developing and refining a PL-driven intervention for extracurricular physical education (60-90 min) of children in grades three and four at primary schools in Bremen.</p><p><strong>Methods: </strong>Adopting a self-study design, this endeavor emphasized continuous reflexivity involving: (a) session protocols; (b) biweekly discussions with another coach; (c) weekly discussions between scientists and stakeholders of youth development (\"multi-perspective panel\"); (d) weekly observations and impressions during field work; and (e) summative group interviews with children (<i>n</i> = 17, age range: 8-9 years, 17.6% boys). Written documents underwent qualitative content analysis with inductively generated categories.</p><p><strong>Results: </strong>Despite explicit links between the theoretical PL domains and the intervention content, the character of how PL informed the intervention level was dominated by the stance and atmosphere implemented by the deliverer (e.g., participatory attitude, open mindset). Accordingly, the team revised the intervention primarily on the levels of organization (temporal schedule and sequences), instruction, and materials. After initial stages of didactically \"surviving\" within classes, the deliverer could increasingly integrate tasks of cognitive engagement and provide choice for students enabling individual autonomy for nurturing a person-centered approach.</p><p><strong>Discussion: </strong>This study encourages teachers and stakeholders of physical education to seek exchange with scholars or other practitioners while simultaneously demonstrating patience in comprehensively internalizing PL and efficiently translating the concept into routines in line with individual's quality standards.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11381300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142284343","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 conservative treatment strategies for iliotibial band syndrome on pain and function in runners: a systematic review.","authors":"Alberto Sanchez-Alvarado, Chaitrali Bokil, Michael Cassel, Tilman Engel","doi":"10.3389/fspor.2024.1386456","DOIUrl":"10.3389/fspor.2024.1386456","url":null,"abstract":"<p><strong>Introduction: </strong>This systematic review summarizes the efficacy of conservative treatment strategies on pain and function in runners with iliotibial band syndrome (ITBS), a prevalent running injury constituting about 10% of all running-related injuries. The multifactorial nature of ITBS necessitates diverse treatment approaches; yet, a consensus on an optimal conservative regimen remains unreported. This review seeks to update and expand upon existing literature with recent rehabilitative approaches.</p><p><strong>Methods: </strong>A systematic search was conducted in Medline, Web of Science, and CINHAL databases, from inception to June 31, 2024. Inclusion criteria were: (1) reporting of conservative treatments for ITBS in adult runners and (2) pain and function defined as main outcome parameters. The methodological quality was evaluated using the NIH Quality Assessment Tool.</p><p><strong>Results: </strong>Thirteen out of 616 records met the inclusion criteria (201 participants), including five randomized controlled trials, one case-control study, one pre-test post-test study, and six case studies. Different active and passive treatment strategies were applied as single (five studies) or combined (eight studies) treatments. The average methodological quality was deemed good. Large between-study heterogeneity was present, impeding a meta-analysis to be performed. Hip abductor strengthening (HAS) exercise emerged as a common strategy. The intervention effects on pain reduction ranged from 27% to 100%, and functional improvement from 10% to 57%, over 2 to 8 weeks.</p><p><strong>Conclusion: </strong>A conservative treatment approach incorporating HAS exercises, possibly augmented by shockwave or manual therapy, is effective for mitigating pain and enhancing function in ITBS-afflicted runners. Finally, the potential of emerging strategies like gait retraining requires further exploration through rigorous trials and comprehensive evidence. Addressing these gaps could refine ITBS management, enhancing treatment outcomes and facilitating runners' return to sport.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11377285/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153748","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":"Performing performance: young aspiring athletes' presentation of athletic identity.","authors":"Anette Skilbred, Åse Strandbu, Sigmund Loland","doi":"10.3389/fspor.2024.1383559","DOIUrl":"10.3389/fspor.2024.1383559","url":null,"abstract":"<p><p>Youths are in the process of figuring out answers to the question \"who am I?\" and young athletes are searching for athletic identity in interaction with their friends, teammates, coaches, and so on. This study explores athletes' presentations of athletic identity based on 24 interviews with ambitious young athletes attending upper secondary sport schools. Anchored in Goffman's theory of the self and the presentation of the self, as well as Markus and Nurius' concept of possible selves, the study views identity as socially constructed in interaction. Utilising this theoretical perspective alongside thematic analysis resulted in four themes that reveal characteristics that are deemed central in an athletic identity. First, the theme <i>I am a dutiful athlete</i> constitutes integral facets of the athletes' self-presentation as committed and diligent individuals. The interviews also bring to light variations in the athletes' attitudes and approaches towards these expectations and concepts. The remaining three themes: <i>I must be unique</i>, <i>We must be unique,</i> and <i>I must have fun</i>, illustrate how being a performing athlete extends beyond duties tied to training, resting, and eating. While the findings suggest the existence of certain dominant and desirable characteristics in an athletic identity, they also highlight variations in identities, emphasising negotiation and flexibility in handling the athlete role.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11374622/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139951","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":"Unlocking high-value football fans: unsupervised machine learning for customer segmentation and lifetime value.","authors":"Karim Chouaten, Cristian Rodriguez Rivero, Frank Nack, Max Reckers","doi":"10.3389/fspor.2024.1362489","DOIUrl":"https://doi.org/10.3389/fspor.2024.1362489","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Introduction: &lt;/strong&gt;In the modern competitive landscape of football, clubs are increasingly leveraging data-driven decision-making to strengthen their commercial positions, particularly against rival clubs. The strategic allocation of resources to attract and retain profitable fans who exhibit long-term loyalty is crucial for advancing a club's marketing efforts. While the Recency, Frequency, and Monetary (RFM) customer segmentation technique has seen widespread application in various industries for predicting customer behavior, its adoption within the football industry remains underexplored. This study aims to address this gap by introducing an adjusted RFM approach, enhanced with the Analytic Hierarchy Process (AHP) and unsupervised machine learning, to effectively segment football fans based on Customer Lifetime Value (CLV).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;This research employs a novel weighted RFM method where the significance of each RFM component is quantified using the AHP method. The study utilizes a dataset comprising 500,591 anonymized merchandising transactions from Amsterdamsche Football Club Ajax (AFC Ajax). The derived weights for the RFM variables are 0.409 for Monetary, 0.343 for Frequency, and 0.248 for Recency. These weights are then integrated into a clustering framework using unsupervised machine learning algorithms to segment fans based on their weighted RFM values. The simple weighted sum approach is subsequently applied to estimate the CLV ranking for each fan, enabling the identification of distinct fan segments.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The analysis reveals eight distinct fan clusters, each characterized by unique behaviors and value contributions: The Golden Fans (clusters 1 and 2) exhibit the most favourable scores across the recency, frequency, and monetary metrics, making them relatively the most valuable. They are critical to the club's profitability and should be rewarded through loyalty programs and exclusive services. The Promising segment (cluster 3) shows potential to ascend to Golden Fan status with increased spending. Targeted marketing campaigns and incentives can stimulate this transition. The Needs Attention segment (cluster 4) are formerly loyal fans whose engagement has diminished. Re-engagement strategies are vital to prevent further churn. The New Fans segment (clusters 5 and 6) are fans who have recently transacted and show potential for growth with proper engagement and personalized offerings. Lastly, the Churned/Low Value segment (clusters 7 and 8) are fans who relatively contribute the least and may require price incentives to potentially re-engage, though they hold relatively lower priority compared to other segments.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Discussion: &lt;/strong&gt;The findings validate the proposed method's utility through its application to AFC Ajax's Customer Relationship Management (CRM) data and provides a robust framework for fan segmentation in the football industry. The approach off","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11378343/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153749","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":"Identification of distinct physical activity profiles through adolescence: a longitudinal qualitative description study.","authors":"Mathieu Bélanger, Julie Goguen, Jacinthe Beauchamp, François Gallant, Anika Boucher, Jean-Sébastien Chevarie, Sara DeGrâce, Yanis Saheb, Maryse Gagnon, Isabelle Doré, Catherine M Sabiston","doi":"10.3389/fspor.2024.1230999","DOIUrl":"10.3389/fspor.2024.1230999","url":null,"abstract":"<p><strong>Introduction: </strong>We aimed to better understand longitudinal physical activity experiences among initially active adolescents and to identify and describe distinct physical activity profiles.</p><p><strong>Methods: </strong>A sample of 23 physically active participants [52% female; mean age = 12.2 (0.6) years at study inception] were selected from the MATCH study to take part in this nested qualitative descriptive study. Participants were interviewed once a year for six years. Following individual-level analyses, profiles were identified based on similarity of longitudinal experiences.</p><p><strong>Results: </strong>Four profiles captured participants' experiences: Independents (those who progressively seek activities that cater to their pursuit of autonomy); Multitaskers (those who participate in many different sports as an integral part of their lifestyle); Specialists (those who are dedicated to becoming the best they can be at one sport); Undecided (those who take part in physical activity to occupy time).</p><p><strong>Discussion: </strong>The exploration of longitudinal physical activity experiences led to the identification of distinct profiles that could be targets for tailored interventions, theory development, and participation models.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11374625/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139950","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":"Validation of the basic need satisfaction for sport scale in Ethiopian athletes.","authors":"Getabirhan Getinet Melesse, Zelalem Melkamu Tegegne, Sangeeta Rani","doi":"10.3389/fspor.2024.1424151","DOIUrl":"10.3389/fspor.2024.1424151","url":null,"abstract":"<p><p>By anchoring on the self-determination theory in an Ethiopian context, this study tried to establish the basic need satisfaction sport scales (BNSSS) reliability and validity. Despite the scale's usefulness in measuring athletes' psychological need fulfillment during a sporting event, no study has proven the scale's validity in a setting of Ethiopian sports. To validate the BNSSS scale, confirmatory factor analysis was used in the study. The 20 items of the BNSSS questionnaire's English translation are divided into five categories: relatedness, competence, autonomy-perceived locus of internal causality, autonomy-choice, and volition. Senior language experts translated the BNSSS questionnaire into Amharic. The Amharic version of the instrument was used to gather data from 321 athletes, 174 men, and 147 women, with a mean age of 23.34 22.59 and a standard deviation of 5.08 and mean age 5.32; a standard deviation of 2.33 year of experience in their sports from four baseball games. With a Cronbach's alpha value ranging from 0.848 to 0.882 (IPLOC to Volition respectively) across the five subscales and, the results confirm the reliability of the BNSSS for evaluating satisfaction with basic needs and motivation among Ethiopian athletes.\" The result demonstrated an acceptable fit with the data (CFI, = 0.958, GFI, = 0.933, RMR, = 0.76, RMSEA, = 0.39) as well as internal consistency. All of the components' Cronbach's alpha values met expectations. The instrument's Amharic translation was thus valid and reliable for determining the extent to which Ethiopian athletes' basic needs were met.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11374615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142334","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 comparison of individual force decline profiles during a fatiguing eccentric trunk flexion and extension protocol: a pilot study.","authors":"Yasemin Paksoy, David Kpobi, Jakob Henschke, Lucie Risch, Tilman Engel","doi":"10.3389/fspor.2024.1431607","DOIUrl":"10.3389/fspor.2024.1431607","url":null,"abstract":"<p><strong>Introduction: </strong>Muscle fatigue, characterized by diminished force production and contraction sustainability, can impair muscle coordination and increase joint instability. Differing force profiles used in fatiguing tasks, such as prolonged eccentric trunk protocols, might provide insights into individualized strategies and resulting spinal stability. Thus, this study assessed individual differences in fatigue characteristics during an eccentric trunk flexion-extension protocol in a population of asymptomatic individuals.</p><p><strong>Methods: </strong>Twelve participants (2 f/10 m, 29 ± 4 years, 78.4 ± 16.9 kg, 1.76 ± 0.10 m) performed an eccentric trunk flexion and extension protocol on an isokinetic dynamometer (45° flexion to 10° extension; 60°/s), with final analysis on 8 participants for trunk flexion and 11 for trunk extension due to data exclusions. Participants engaged in a maximal all-out (AO) task for 2 min. Each participant's torque output (Nm) was assessed on a repetition-by-repetition basis, and smoothened by a moving average of 5 repetitions. Individual time profiles for reaching fatigue thresholds (10%, 15%, 20% and 30% reduction of initial torque output), and inter subject variability (by coefficient of variation, CV in %) were assessed throughout the AO task. Further, percentage torque reduction and variability were assessed at mid (1-minute) and end (2-minute) of task.</p><p><strong>Results: </strong>On average, for flexor and extensor muscles combined, participants reached a force reduction of 10% within 23.2 ± 19.1 s, of 15% within 44.9 ± 19.6 s, of 20% in 62.4 ± 26.3 s, and of 30% within 79.2 ± 21.8 s. The variability between individuals for the timepoint of reaching the defined torque thresholds was assessed by CV ranged between 23.4% and 103.8% for trunk flexor muscles, and between 28.4% and 56.5% for trunk extensor muscles.</p><p><strong>Discussion: </strong>A reduction of up to 20% was seen on average for all participants within 1-minute of eccentric trunk flexion and extension. Different inter-individual force output profiles were seen throughout the AO protocol, potentially related to physiological, skill-based, technical, adaptational, and/or motivational factors. The increase in fatigue resulted in a reduction in variability among individuals. A 2-minute protocol effectively induced pronounced fatigue, offering insights into individual force profiles and strategies.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11371616/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132544","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 challenges of the wind. Ecology of serious leisure in the Brazilian Northeast.","authors":"Olivier Sirost, Bernard Andrieu, Jullya Bheatriz Dantas da Costa Sobral, Petrucia Da Nóbrega","doi":"10.3389/fspor.2024.1406311","DOIUrl":"10.3389/fspor.2024.1406311","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study is to understand the development of windsports and the challenges faced by wind-based leisure activities.</p><p><strong>Methods: </strong>The socio-historical dynamics behind the development of wind leisure are analysed on the basis of specialised tourism blogs, as well as a field study carried out in the Northeast Region of Brazil, combining ethnographic observations and semi-structured interviews with 6 wind leisure enthusiasts. All the data is processed using the serious leisure perspective tools developed by Stebbins, and the body ecology tools developed by Andrieu et al.</p><p><strong>Results: </strong>The results show that wind sports provide a dual continuum. First of all, there are the practitioners, from Neophyte to Devotee Worker. Then there is the junction between land, water and air, where wind practices ensure a dual aesthetic. On the one hand, riders are united by a community of flow, emotion and sensation mediated by their relationship with the wind and the creation of play materials (waves, lagoons, trade winds). On the other hand, the tourist development of these practices serves a political narrative based on postcard aesthetics, enabling wind concessions to be traded for the development of wind farms.</p><p><strong>Conclusion: </strong>this original research calls for a more systematic exploration of wind practices and the hybridisation of natural elements, which seems to illustrate the crisis that modern sport and its institutions are going through today.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11371554/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132545","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 use of saliva and blood progesterone to profile the menstrual cycles of youth professional football players.","authors":"Eva Ferrer, Gil Rodas, Gregori Casals, Antoni Trilla, Laura Balagué-Dobon, Juan R González, Katherine Ridley, Richard White, Richard J Burden","doi":"10.3389/fspor.2024.1430158","DOIUrl":"10.3389/fspor.2024.1430158","url":null,"abstract":"<p><strong>Background: </strong>Understanding individual ovarian hormone cycles and their relationship with health, performance and injuries is highly important to practitioners supporting female athletes. Venous blood sampling is the current gold standard for measuring the ovarian hormones, but the invasive nature of this method presents a major barrier in sport environments. Saliva analysis may offer an alternative method as it is non-invasive, allowing the sample to be collected \"<i>in situ</i>\", with relative ease, necessary in applied sport environments.</p><p><strong>Objective: </strong>The aims of this study were: (i) To compare the concentration of progesterone between capillary blood and saliva, (ii) To assess the efficacy of weekly measurements of progesterone for determining if ovulation has occurred in elite eumenorrheic football players, and (iii) To establish a saliva criteria cut-off for establishing ovulation and assessing the sensitivity, specificity and accuracy values of the method.</p><p><strong>Methodology: </strong>Twenty-one professional and semi-professional, Spanish league female football players (18.6 ± 1.5 years, 58.1 ± 6.0 kg, 164.0 ± 4.8 cm) with natural menstrual cycles, completed the study. Capillary blood and saliva samples were collected from each participant on twelve occasions each separated by at least 7 days. All samples were collected in the morning, following an overnight fast.</p><p><strong>Results: </strong>According to luteal phase serum progesterone concentrations, 11 out of 21 (52%) players presented with menstrual irregularities (oligomenorrheic <i>n</i> = 6, anovulatory <i>n</i> = 4, amenorrhoeic <i>n</i> = 1). A significant correlation was observed between plasma and saliva progesterone in the estimated eumenorrheic group (<i>r</i> = 0.80, <i>p</i> = <0.001, 95% CI 0.72-0.86). The association between serum and saliva progesterone was weaker in the oligomenorrheic group (<i>r</i> = 0.47, <i>p</i> = <0.001, 95% CI 0.27-0.64) and was not present in the anovulatory or amenorrhoeic groups.</p><p><strong>Conclusions: </strong>Salivary measurements of progesterone are well correlated with capillary blood when taken during eumenorrheic menstrual cycles and presents a viable, non-invasive method of establishing characteristic progesterone fluctuations in applied sport settings. The strength of the association appears to be concentration dependent. A luteal phase saliva progesterone (P4) >50 pg/ml and >1.5× follicular baseline has good sensitivity, specificity, and accuracy to indicate ovulation compared to established criteria for serum progesterone.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11373522/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132546","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 project SCORE in competitive youth sport settings.","authors":"Marta Ferreira, Fernando Santos, María A Fernández-Villarino, Jason Mergler, Leisha Strachan, Dany J MacDonald","doi":"10.3389/fspor.2024.1439822","DOIUrl":"10.3389/fspor.2024.1439822","url":null,"abstract":"<p><strong>Introduction: </strong>This study evaluates the effectiveness of the Project SCORE intervention in fostering Positive Youth Development (PYD) within competitive youth sport settings in Portugal. Project SCORE is an online PYD-focused tool developed to assist coaches in promoting the 4Cs-competence, confidence, connection, and character-within their coaching.</p><p><strong>Methods: </strong>The research involved 13 coaches and 70 youth athletes from football and rowing teams. Methodologically, this study analyzed the pre- and post- Project SCORE intervention data, assessing the perceptions of coaches and athletes towards the development of the 4Cs.</p><p><strong>Results: </strong>Results indicated significant improvements in athletes' perceptions of 4Cs post-intervention, and among coaches' perceptions, there was a significant improvement in the practice and transfer of life skills. Particularly, coaches showed enhanced abilities in fostering life skills and facilitating the transfer of these skills to competitive environments, although some dimensions like sport climate did not sustain positive changes.</p><p><strong>Discussion: </strong>The findings highlight the benefits of customized PYD-based programs in competitive youth sports and suggest the need for further research to enhance their widespread and consistent implementation.</p>","PeriodicalId":12716,"journal":{"name":"Frontiers in Sports and Active Living","volume":null,"pages":null},"PeriodicalIF":2.3,"publicationDate":"2024-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11368764/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125451","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}