Clément Maviel, Anthony Couderc, Pascale Duché, Jean-Benoît Morin, Fabrice Vercruyssen
{"title":"Establishing reliable acceleration-speed profiles: Minimum data requirements in rugby union matches.","authors":"Clément Maviel, Anthony Couderc, Pascale Duché, Jean-Benoît Morin, Fabrice Vercruyssen","doi":"10.1080/02640414.2024.2436814","DOIUrl":"https://doi.org/10.1080/02640414.2024.2436814","url":null,"abstract":"<p><p>The aim of this study was to determine the minimum playing time in matches required to produce reliable acceleration - speed (AS) profiles from global navigation satellite system (GNSS) data. The playing time of 25 professional rugby union players was recorded using GNSS technology and segmented into four sections from 40, 80, 120 and 160 minutes of play. For each interval, the impact of integrating new match data on the AS profile was assessed, aiming to identify the saturation point where additional data did not induce significant changes in the profile outputs. A repeated measures ANOVA and Bonferroni post-hoc tests were applied to examine the variations of AS profile between time intervals. This led to identify the saturation point for assessing \"robust\" values of theoretical maximum acceleration (A0) and maximum speed (S0). A substantial lack of significant effect was observed for A0 (<i>p</i> = 1.00) and S0 (<i>p</i> = 0.99) in the section of 160 minutes, with an intra-subject variability of 1.50 and 1.20% for A0 and S0, respectively. Determining AS profiles for rugby players is essential for monitoring performance in training and match contexts. Our findings indicate that an equivalent of two full rugby union matches is required to generate a reliable AS profile.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-6"},"PeriodicalIF":2.3,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142780002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jeffeson Hildo Medeiros de Queiroz, Carlos Augusto Silva Rodrigues, Rodrigo Scattone Silva, Gabriel Leão Peixoto Almeida, Márcio Almeida Bezerra, Rodrigo Ribeiro de Oliveira
{"title":"Verbal instructions for attentional focus influence the results of tests for return to sport after anterior cruciate ligament reconstruction.","authors":"Jeffeson Hildo Medeiros de Queiroz, Carlos Augusto Silva Rodrigues, Rodrigo Scattone Silva, Gabriel Leão Peixoto Almeida, Márcio Almeida Bezerra, Rodrigo Ribeiro de Oliveira","doi":"10.1080/02640414.2024.2430904","DOIUrl":"https://doi.org/10.1080/02640414.2024.2430904","url":null,"abstract":"<p><p>This cross-sectional study investigated the influence of attentional focus verbal instructions on test results for return to sport (RTS) after ACL-R. Sixty subjects (53 male and 7 female, age 27.52 ± 7.63 years, body mass 77.56 ± 12.41 kg, height 162.04 ± 43.90 cm, and surgery time 11.15 ± 4.55 months) were evaluated in the single hop test (SHT), 6 m timed hop test (6mTHT), and \"T\" agility test. Participants performed the tests following randomly determined verbal instructions that induced neutral focus (NF), internal focus (IF), and external focus (EF). EF increased hop distance in SHT compared to NF (<i>p</i> = 0.001, effect size = 0.57) and IF (<i>p</i> = 0.037, effect size = 0.57) and there was no difference between IF and NF (<i>p</i> = 0.418). In 6mTHT, NF and EF increase velocity compared to IF (<i>p</i> = 0.001, effect size = 0.49, <i>p</i> = 0.001, effect size = 0.49, respectively). In the \"T\" agility test, the NF increased velocity when compared to the EF (<i>p</i> = 0.001, effect size = 0.62) and the IF (<i>p</i> = 0.001, effect size = 0.62), without difference between IF and EF (<i>p</i> = 0.071). In summary, attentional focus in patients under ACL-R can influence hops and agility.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-9"},"PeriodicalIF":2.3,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142780004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V Filleul, F d'Arripe-Longueville, H Bimes, J Maillot, E Meinadier, S Isoard-Gautheur, K Corrion
{"title":"Relationships between achievement goals and doping in cycling: Exploring the mediating role of athlete burnout.","authors":"V Filleul, F d'Arripe-Longueville, H Bimes, J Maillot, E Meinadier, S Isoard-Gautheur, K Corrion","doi":"10.1080/02640414.2024.2433892","DOIUrl":"https://doi.org/10.1080/02640414.2024.2433892","url":null,"abstract":"<p><p>Doping remains a pressing issue in competitive sport. This study investigated the relationships between achievement goals and doping by examining the mediating role of athlete burnout. French competitive cyclists (<i>N</i> = 251, <i>Mage</i> = 24.95, <i>SD</i> = 9.85) completed a survey measuring 2 × 2 achievement goals, burnout (i.e. physical exhaustion, reduced accomplishment, negative feelings towards sport, cognitive weariness), doping attitudes and likelihood. Structural equation modelling revealed that performance-approach goals were negatively related to each dimension of burnout and to doping likelihood with a total effect (β = -.10; <i>p</i> < .05). A significant total effect (β = .23; <i>p</i> < .05), as well as direct (β = .17; <i>p</i> < .05) and indirect through the mediating role of cognitive weariness (β = .06, 95% CI = [0.025, 0.601]) were observed between performance-avoidance goals and doping attitudes. The model explained 11.9% of the doping likelihood variance. Burnout may play a key role in understanding the relationships between achievement goals and doping. Considering both athletes' achievement goals and burnout thus appear as crucial for anti-doping efforts. Therefore, developing mental health interventions should be prioritized. Further experimental and longitudinal research is necessary to establish the temporal and causal effects of these relationships.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-13"},"PeriodicalIF":2.3,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jasmine M Petersen, Shane Pill, Kate Ridley, Deborah Agnew, Ivanka Prichard
{"title":"Exploring the gendered experiences of Australian tennis coaches: A cross-sectional survey of women and men tennis coaches.","authors":"Jasmine M Petersen, Shane Pill, Kate Ridley, Deborah Agnew, Ivanka Prichard","doi":"10.1080/02640414.2024.2425906","DOIUrl":"10.1080/02640414.2024.2425906","url":null,"abstract":"<p><p>Women remain underrepresented in tennis coaching roles in Australia. This study aimed to examine the factors (barriers and facilitators) that may underlie gendered experiences in sport coaching and their links to retention in the profession, through the lens of Self-determination Theory. An online survey assessed barriers to coaching (individual, interpersonal, organisational and socio-cultural levels), coaching motivation and social support for coaching. Participants also completed measures of coach retention (coaching commitment, intentions to continue coaching). The survey was completed by 243 Australian tennis coaches (M<sub>age</sub> = 49.5 ± 16.4 years, 35.8% women). The findings indicated that women coaches perceived experiencing significantly more socio-cultural barriers (e.g. discrimination, marginalisation) than their men counterparts. Fewer women (41.4%) than men (55.8%) intended to remain in the profession long-term (>10 years). Regression analyses did not reveal any predictors of retention among women coaches. In men, integrated regulation (β = 0.22, <i>p</i> = .036) and amotivation (β = -0.24, <i>p</i> = .010) predicted coaching commitment. Interpersonal barriers (OR = 0.27, <i>p</i> = .038), external regulation (OR = 0.68, <i>p</i> = .023) and amotivation (OR = 0.72, <i>p</i> = .040) predicted male's intentions to exit the profession sooner. This study sheds light on the factors that shape the experiences of sport coaches. Ongoing efforts to support the retention of women in sport coaching are necessary and may include challenging socio-cultural barriers.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2163-2171"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Active primitive reflexes obstruct tactical and technical skills in football players.","authors":"Julie Bastiere, Thibault Lussiana, Aurélien Patoz, Cyrille Gindre, Laurent Mourot","doi":"10.1080/02640414.2024.2434800","DOIUrl":"https://doi.org/10.1080/02640414.2024.2434800","url":null,"abstract":"<p><p>Primitive reflexes (PRs) are involuntary motor responses present at birth, typically replaced by voluntary motor control during development. If PRs remain active beyond infancy, they can impair motor and cognitive abilities. This study investigated the correlation between active PRs and Tactical (TaS) and Technical Skills (TeS) in professional football matches. Fifty-eight male football players (17.5 ± 1.4 years) from a French academy were assessed for PR activity, categorized into inactive or active PR groups. Assessed PRs included asymmetrical tonic neck reflex (ATNR), symmetrical tonic neck reflex (STNR), tonic labyrinthine reflex (TLR), and Moro reflex (MR). Analysis of twenty matches showed players with active PRs had significantly lower success rates in TaS and TeS, including 15.5% and 31.8% lower pass success in imbalance and finishing zones (<i>p</i> < 0.01). Players with active PRs also performed worse in defensive actions and duels (<i>p</i> < 0.01). The findings highlight that active PRs hinder football performance, especially in challenging match situations like duels and crowded zones. This suggests the need for training programs to address PR effects and enhance player performance. Further research should refine methods for integrating these RPs.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"1-11"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zhen Xu, Sijia Shen, Xincheng Huang, You Fu, Yibo Wu
{"title":"Association of physical activity and sedentary behaviour with depressive symptoms in Chinese adults.","authors":"Zhen Xu, Sijia Shen, Xincheng Huang, You Fu, Yibo Wu","doi":"10.1080/02640414.2024.2425909","DOIUrl":"10.1080/02640414.2024.2425909","url":null,"abstract":"<p><p>This study aims to examine the independent and joint associations of physical activity (PA) and sedentary behaviour with depressive symptoms. A population-based cross-sectional study conducted in China included 17,861 adults. PA and sedentary behaviour were assessed using the International Physical Activity Questionnaire. Depressive symptoms were determined by the 9-item Patient Health Questionnaire score ≥10. Logistic regression models were used to calculate the odds ratios (ORs) and corresponding 95% confidence intervals (CIs). The prevalence of depressive symptoms among all participants was 20.6% (3679/17861). Higher levels of PA were inversely associated with depressive symptoms, whereas prolonged sedentary behaviour was associated with increased odds of depressive symptoms. The positive associations between sedentary behaviour and depressive symptoms remained significant, regardless of PA levels. In joint analyses, the depressive symptoms OR comparing adults who reported low level of PA with the highest tertile of sedentary behaviour to those reporting high level of PA with the lowest tertile of sedentary behaviour was 1.99 (95% CI 1.64 to 2.40). This study indicated that high level of PA may not offset the increased risk of depressive symptoms associated with high amounts of sedentary behaviour, and therefore these behaviours should be considered jointly to obtain optimal prevention effects.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2191-2198"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cristina López de Subijana, Joan Pons, Clifford J Mallett
{"title":"How is coaches' social identity leadership related to mental health in elite athletes? The mediating role of satisfaction with performance.","authors":"Cristina López de Subijana, Joan Pons, Clifford J Mallett","doi":"10.1080/02640414.2024.2425908","DOIUrl":"10.1080/02640414.2024.2425908","url":null,"abstract":"<p><p>It has been found that the way high-performance coaches lead influences both athletes' performance and mental health. However, limited research exists on the Social Identity Approach to leadership in elite sports, despite growing interest in coaching science regarding interpersonal behaviours and leadership. This study investigates the empirical links between coaches' leadership, sport performance and mental health from a social identity approach. One hundred and forty-five elite athletes (<i>M</i><sub><i>age</i></sub> = 20.6 years; <i>SD</i> = 4.1; 62% women, 38% men) answered questionnaires measuring coaches' social identity leadership, sport performance satisfaction and mental health. The overall structural equation model (SEM) accounted for 36% and 19% of the variances in athletes' mental health and mental illness dimensions, respectively. There was a positive association between perceived coaches' social identity leadership and sport performance satisfaction, explaining 10% of its variance. Coaches' social identity leadership predicted athletes' mental health but not mental illness. Sport performance satisfaction positively influenced mental health and negatively impacted mental illness. Fostering a sense of \"we\" and \"us\" within elite sport training groups is instrumental in promoting sport performance satisfaction and, consequently, enhancing the mental health of athletes. Coaching educational courses may benefit from social identity leadership in interpersonal behaviours.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2183-2190"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142604914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eric Tsz-Chun Poon, Wesley Man-Kuk Sum, David Lubans, Stephen Heung-Sang Wong, Robin Sze-Tak Ho
{"title":"High-intensity interval training for improving cardiometabolic health in children and adolescents: An umbrella review of systematic reviews.","authors":"Eric Tsz-Chun Poon, Wesley Man-Kuk Sum, David Lubans, Stephen Heung-Sang Wong, Robin Sze-Tak Ho","doi":"10.1080/02640414.2024.2425910","DOIUrl":"10.1080/02640414.2024.2425910","url":null,"abstract":"<p><p>High-intensity interval training (HIIT) is an emerging exercise strategy to improve health and fitness, but previous studies have evaluated HIIT interventions across different populations and outcomes. This review aimed to comprehensively synthesize published evidence on the effects of HIIT on key cardiometabolic health parameters in children and adolescents. We searched seven databases until February 2024. Systematic reviews were eligible if they 1) compared HIIT and active/non-active control conditions with meta-analysis, 2) examined cardiorespiratory fitness, body composition and cardiometabolic risk biomarkers, and 3) examined children and adolescents. We included 18 systematic reviews with meta-analysis, including 223 original studies and 13,900 unique participants. HIIT is effective for cardiorespiratory fitness in children and adolescents with diverse health and weight status (median standardized mean difference [SMD] = 0.75). Improvements in body composition and several cardiometabolic risk biomarkers, including systolic blood pressure (median SMD = -0.40), diastolic blood pressure (median SMD = -0.22), triglyceride (median SMD = -0.30), low-density lipoprotein cholesterol (median SMD = -0.90), and high-density lipoprotein cholesterol (median SMD = 0.34), have also been observed following HIIT, with a notably more pronounced effect in youth with overweight/obesity or metabolic disorders. Our umbrella review supports the effectiveness of HIIT in enhancing cardiometabolic health, suggesting its integration into physical activity promotion programmes in schools and communities.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2199-2215"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"\"I am open to self-belief\": A study examining the impact of open-label effects on postexercise affect and postintervention exercise behaviour.","authors":"Yue Qiu, Dong-Ting Yun, Jiao Liu, Zhi-Xiong Mao","doi":"10.1080/02640414.2024.2425907","DOIUrl":"10.1080/02640414.2024.2425907","url":null,"abstract":"<p><p>The contribution of placebo effects can be measured by manipulating psychological factors, such as positive expectations for exercise outcomes, without the need for traditional placebos (such as inert substances). While placebo effects are well known, research has revealed intriguing findings suggesting that placebos can have beneficial effects even when studies are performed without deception. Open-label placebo (OLP) interventions (prescribed honestly), which harness the power of belief, may represent another effective method for enhancing the benefits of exercise effects. This study compared the efficacy of a conventional placebo intervention, an OLP intervention, and a control group among 89 individuals. Participants' levels of affective response after exercise and exercise behaviour were assessed during the intervention period (4 weeks) and at follow-up (4 weeks). The results revealed similar levels of improvement in all outcomes across the three conditions. Both the conventional placebo and OLP intervention groups exhibited greater enhancements in postexercise enjoyment. OLP interventions demonstrated distinct advantages in terms of remembered affect and expectation fulfilment. Nonetheless, neither intervention directly stimulated postintervention exercise behaviour. Future studies should continue to explore the impact of OLP interventions on adherence to exercise behaviour.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2172-2182"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Federico Nigro, Dalton de Lima-Junior, Davide Jacaz, Giuseppe Rosaci, Francesco Pegreffi, Sandro Bartolomei
{"title":"Feasibility of utilizing pectoral muscle thickness as a predictor for one repetition maximum bench press in trained men.","authors":"Federico Nigro, Dalton de Lima-Junior, Davide Jacaz, Giuseppe Rosaci, Francesco Pegreffi, Sandro Bartolomei","doi":"10.1080/02640414.2024.2430855","DOIUrl":"10.1080/02640414.2024.2430855","url":null,"abstract":"<p><p>The aim of the present study was to develop prediction equations for the one repetition maximum (1RM) Bench Press (BP) in resistance-trained men based on muscle thickness and simple anthropometric parameters. 83 men (age: 26.2 ± 4.9y, height: 175.9 ± 6.3 cm, body mass: 82.9 ± 11.2 kg) participated in the present investigation and were assessed for anthropometric measurements and for muscle thickness of pectoral major (MTP). Then, the participants performed the 1RM BP test. A very large correlation was detected between MTP and 1RM BP (<i>r</i> = 0.83-0.88). A prediction equation based on MTP and body mass (EQ1) was developed: 1RM BP = -15.2460565 + (32.0751388 * MTP) + (0.6364405 * Body Weight) with R<sup>2</sup> = 0.79. Another prediction equation was developed using MTP only (EQ2): 1RM BP = 20.36167 + (39.36532 * MTP) with R<sup>2</sup> = 0.69. Bland-Altman analysis and paired sample t test provided insufficient evidence to support differences between the predicted and the measured 1RM BP in both the equations (<i>p</i> > 0.05). This study showed that both MTP based (EQ2) and MTP and body mass based (EQ1) methods can be used to predict 1RM BP and may represent important tools for the evaluation of maximal strength. These findings support the potential use of non-performance-based parameters to predict maximal dynamic strength in trained individuals.</p>","PeriodicalId":17066,"journal":{"name":"Journal of Sports Sciences","volume":" ","pages":"2254-2259"},"PeriodicalIF":2.3,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142648160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}