Giovanni Esposito, Rosario Ceruso, Sara Aliberti, Tiziana D'Isanto, Francesca D'Elia
{"title":"A comparative study of university training of sports and physical activity kinesiologist.","authors":"Giovanni Esposito, Rosario Ceruso, Sara Aliberti, Tiziana D'Isanto, Francesca D'Elia","doi":"10.1186/s13102-024-01016-y","DOIUrl":"10.1186/s13102-024-01016-y","url":null,"abstract":"<p><strong>Background: </strong>In Italy, Legislative Decree No. 36/2021 and Ministerial Decree (MD) No. 1649/2023 have redefined the professional landscape of the physical activity and health sectors, emphasizing interdisciplinary and wellness-oriented education. The current disparity in the weighting of formative elements among the biomedical, psycho-pedagogical, and Exercise and Sport Sciences (ESS) fields in the configuration of degree courses in ESS has led to a need for reform. MD No. 1649/2023 offers an opportunity to reform these courses to emphasize interdisciplinary and wellness-oriented objectives, including at least 20 ECTS credits of practical activities in ESS disciplines. However, the impact of practical and laboratory activities on future kinesiologists has never been studied. This study aims to evaluate the impact of physical activity habits on the performance and self-assessment of ESS students.</p><p><strong>Method: </strong>A sample of 56 students enrolled in the Master of Science in Sport Science and Techniques at the University of Salerno was divided into \"active\" and \"inactive\" groups based on their physical activity levels, according to WHO guidelines. Both groups underwent anthropometric and functional tests, including the Squat Jump (SJ) and Countermovement Jump (CMJ). Descriptive statistics and t-tests assessed the differences between and within groups.</p><p><strong>Results: </strong>The \"active\" group exhibited significantly higher performance in SJ (15.7% higher) and CMJ (18.5% higher) compared to the \"inactive\" group. Both groups showed significant improvements in jump height from SJ to CMJ, with the \"active\" group improving by 11.04% and the 'non-active' group by 7.38%.</p><p><strong>Conclusion: </strong>Continuous physical activity enhances functional efficiency, with significant gains in explosive and reactive strength. Practical, evidence-based training is crucial for future kinesiologists to provide specialized services and promote health, underscoring the importance of integrating substantial practical activities in ESS degree courses.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"231"},"PeriodicalIF":2.1,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11559100/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142630374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tomás Zylberberg, Ricardo Martins, Svein Arne Pettersen, José Afonso, Ivan André Matias Vale Baptista
{"title":"Acute responses to a potentiation warm-up protocol on sprint and change of direction in female football players: a randomized controlled study.","authors":"Tomás Zylberberg, Ricardo Martins, Svein Arne Pettersen, José Afonso, Ivan André Matias Vale Baptista","doi":"10.1186/s13102-024-01015-z","DOIUrl":"10.1186/s13102-024-01015-z","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the acute effect of exposure to a potentiation warm-up protocol compared to a usual warm-up program.</p><p><strong>Design: </strong>Randomized parallel control trial.</p><p><strong>Setting: </strong>Synthetic grass in the club's facilities (Portugal).</p><p><strong>Participants: </strong>Seventeen female football players (age: 23.9 ± 3.9 years), were randomly allocated to a control (n = 8) and an experimental group (n = 9). To allocate the players, a table was computer-generated by a research team member with no involvement in the trial.</p><p><strong>Intervention: </strong>The control group performed their usual warm-up program, while the experimental group performed a potentiation warm-up protocol with jumps combined with sprints with change of direction.</p><p><strong>Main outcomes measures: </strong>The players were tested pre- and post-intervention for a 40-m linear sprint and pre-planned change of direction using the T-test.</p><p><strong>Statistical analysis: </strong>An intention-to-treat analysis was performed, with all the participants originally randomized being involved. The normal distribution was verified by the Shapiro-Wilk test. The assumption of sphericity was analyzed. Effect sizes were calculated using partial eta squared.</p><p><strong>Results: </strong>No significant pre-post differences in the T-test and in the 40-m sprint were detected for any group. However, in the T-test, large effect sizes in time increments were observed within the experimental (0.27 s; p > 0.05, η<sub>p</sub><sup>2</sup> = 0.176) and control groups (0.06 s; p > 0.05, η<sub>p</sub><sup>2</sup> = 0.176). Also, in the 40-m sprint, large effect sizes in time increments were observed within the experimental (0.05 s; p > 0.05, η<sub>p</sub><sup>2</sup> = 0.251) and control groups (0.09 s; p > 0.05, η<sub>p</sub><sup>2</sup> = 0.251).</p><p><strong>Conclusions: </strong>The performance-enhancing ability of the potentiation method performed at warm-up was not verified when applied to female football players. Thus, the potentiation methods may not improve sprint and COD ability for this population. However, the lack of statistical significance may have been due to reduced statistical power, as three of four effects suggest acute performance impairment after a supposed potentiation-oriented warm-up. Nevertheless, the presence of a statistical type 2 error cannot be ruled out.</p><p><strong>Registration number (retrospectively registered): </strong>NCT06555185; Project URL: https://clinicaltrials.gov/study/NCT06555185 .</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"230"},"PeriodicalIF":2.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11555932/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142630515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Philipp Raisch, Tabea Hirth, Michael Kreinest, Sven Y Vetter, Paul A Grützner, Matthias K Jung
{"title":"Hight return-to-sport rate following traumatic spine injury in amateur athletes.","authors":"Philipp Raisch, Tabea Hirth, Michael Kreinest, Sven Y Vetter, Paul A Grützner, Matthias K Jung","doi":"10.1186/s13102-024-01017-x","DOIUrl":"10.1186/s13102-024-01017-x","url":null,"abstract":"<p><strong>Introduction: </strong>Data on the resumption of sporting activity (return-to-sport, RTS) after traumatic spine injuries are mainly available for elite athletes. This study aimed to determine the RTS rate in amateurs after spine injury and to identify factors possibly influencing RTS.</p><p><strong>Methods: </strong>First, a retrospective analysis of clinical data of patients with traumatic spine injuries receiving inpatient treatment at a national trauma center from 2016 to 2020 was performed. Patients up to the age of 60 who were active in sports before the injury were included. Patients with the following relevant concomitant injuries were excluded: spinal cord injury, pelvic injury, extremity injuries, as well as craniocerebral trauma grade 2 or higher. A telephone interview on participants' RTS within the first year after the injury was conducted. Participants with early and those with late or no RTS were compared in univariate analysis regarding potential influencing factors. The level of significance was set to p < .05.</p><p><strong>Results: </strong>Thirty-seven women (39%) and 57 men (61%) were included. The mean age was 44 years (16-60). The numbers of patients per injured segment of the spine were: cervical 15 (16%), thoracic 28 (30%), lumbar 33 (35%), multiple spine segments 18 (19%). Thirty patients (32%) were treated conservatively and 64 (68%) surgically. The RTS rate after six months was 62%, corresponding to 57 patients. Compared to patients with late or no RTS, patients with RTS within six months had a significantly lower BMI (24.6 vs. 27.4 kg/qm, p = .004), had isolated cervical spine injuries significantly more often (24% vs. 6%, p = .020), and had undergone outpatient or inpatient rehabilitation significantly less often (35% vs. 72%, p < .001). There were non-significant trends regarding mean age (42 vs. 46 years, p = .175), surgical therapy (66% vs. 75%, p = .333), and the proportion of patients who, before the injury, had been physically active for at least five hours per week (50% vs. 33%, p = .113). Patients with RTS within six months had sustained their spinal injury in a sports accident twice as often (28% vs. 14%, p = .121). Gender, preexisting medical or spinal conditions, severe injuries (types A4, B or C according to AO Spine), and surgical therapy were not significantly associated with RTS. The RTS rate within twelve months was 81% (76 patients).</p><p><strong>Conclusion: </strong>The RTS rate in amateur athletes after an isolated spinal injury without spinal cord injury was high, with 62% after six and 81% after twelve months. This reflects the effectiveness of the existing treatment and posttreatment concepts. Normal-weight patients and isolated cervical injury are favorable factors for RTS. The use of inpatient rehabilitation as a marker of protracted healing is associated with delayed or no RTS.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"229"},"PeriodicalIF":2.1,"publicationDate":"2024-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11556190/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142630516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Songtie Ying, Fangchuan Chen, Chaoqin Dai, Ying Li, Haiyan Shi
{"title":"Effect of low-intensity muscle strength training on postoperative rehabilitation and adverse events in patients with knee osteoarthritis over 55 years of age: a meta-analysis.","authors":"Songtie Ying, Fangchuan Chen, Chaoqin Dai, Ying Li, Haiyan Shi","doi":"10.1186/s13102-024-01014-0","DOIUrl":"10.1186/s13102-024-01014-0","url":null,"abstract":"<p><strong>Background: </strong>This study aimed to study the effect of low-intensity muscle strength training on postoperative rehabilitation of patients with knee osteoarthritis over 55 years of age and the incidence of adverse events by a meta-analysis.</p><p><strong>Methods: </strong>We searched China National Knowledge Infrastructure (CNKI), WanFang, China Science and Technology Journal Database (VIP), PubMed, Web of science, and Embase databases for articles on the effect of low-intensity muscle strength training on the recovery of patients with knee arthritis. And meta-analysis combined effect was performed in R 4.2.2 software. Quantitative analysis and risk of bias were assessed by Begg's and Eegger's test.</p><p><strong>Results: </strong>Meta-analysis showed that the effect of low-intensity muscle strength training on postoperative knee range of motion in patients with knee arthritis was mean difference (MD) = 5.20, 95% CI=[4.00, 6.40], τ<sup>2</sup> = 0.43, P = 0.34; the effect on postoperative muscle strength was standard mean difference (SMD) = 1.24, 95% CI=[0.86, 1.61], τ<sup>2</sup> = 0.07, P < 0.01; the effect on postoperative knee joint score was MD = 5.88, 95%CI=[2.09, 9.67], τ<sup>2</sup> = 16.60, P < 0.01; the effect on postoperative knee visual analogue scale (VAS) score was MD=-1.12, 95%CI =[-1.43, -0.81], τ<sup>2</sup> = 0.09, P < 0.001; the effect on the incidence of adverse events was RR = 0.85, 95%CI= [0.52 1.39], τ<sup>2</sup> = 0.79, P = 0.04.</p><p><strong>Conclusion: </strong>Low-intensity muscle strength training can improve the muscle strength of the affected limb and knee joint score, reduce the VAS score and the incidence of adverse events in patients with knee osteoarthritis over 55 years of age after surgery, but it has no effect on the postoperative knee range of motion, so it can be considered as appropriate in clinical selection.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"228"},"PeriodicalIF":2.1,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11539746/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142590690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Munyra Alhotye, Rachael Evans, Andre Ng, Sally J Singh
{"title":"Healthcare professionals' views about delivering a rehabilitation programme for individuals living with Atrial Fibrillation: a cross - sectional survey.","authors":"Munyra Alhotye, Rachael Evans, Andre Ng, Sally J Singh","doi":"10.1186/s13102-024-01000-6","DOIUrl":"10.1186/s13102-024-01000-6","url":null,"abstract":"<p><strong>Background: </strong>People living with Atrial Fibrillation (AF) often experience symptoms such as irregular heartbeat, shortness of breath, and fatigue, which can significantly limit their physical activity and overall quality of life. The existing approach to managing AF predominantly revolves around medication and medical procedures, and no prescription of tailored rehabilitation program (RP) is currently offered for this population.</p><p><strong>Aims: </strong>This study aims to gauge the perspectives of healthcare professionals regarding the implementation of a personalised RP for individuals living with AF and to identify the barriers hindering the referral process.</p><p><strong>Methods: </strong>A cross-sectional online survey was conducted among healthcare professionals in the UK responsible for caring for adults with AF. The survey consisted of twelve questions designed to uncover healthcare professionals' views on RP for individuals with AF.</p><p><strong>Results: </strong>A total of 209 respondents participated in the survey, with 57% being female and 43% identifying as specialist arrhythmia nurses. A significant majority (61%) of the participants expressed agreement that an RP could help individuals with AF regain their ability to carry out daily activities, and 58% believed that RP could effectively alleviate symptoms such as breathlessness and palpitations (52%). Virtually all respondents (99%) recommended that a tailored program should encompass education about AF, weight management, and symptom control (94%). Notably, the primary factor influencing their decision to make a referral was the low physical activity levels (80%). Transportation emerged as the chief obstacle to referring patients to the program (62%). A substantial majority (79%) favoured a home-based rehabilitation program as the optimal mean of delivery.</p><p><strong>Conclusions: </strong>The responses from healthcare professionals reflect a keen interest in implementing a program tailored to individuals with AF, with patients' low physical activity levels being the primary motivator for referrals. Home-based rehabilitation was the preferred mode of delivery, followed by digital interventions.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"227"},"PeriodicalIF":2.1,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11536881/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142576496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mehmet Yiğit Gökmen, Fatma Çepikkurt, Mehmet Cenk Belibağlı, Mesut Uluöz, Funda Çoşkun Özyol, Özhan Bavlı, Ergin Karıncaoğlu, Eren Uluöz, Mutlu Türkmen
{"title":"Do we need a guideline for all: a qualitative study on the experiences of male athletes following anterior cruciate ligament reconstruction.","authors":"Mehmet Yiğit Gökmen, Fatma Çepikkurt, Mehmet Cenk Belibağlı, Mesut Uluöz, Funda Çoşkun Özyol, Özhan Bavlı, Ergin Karıncaoğlu, Eren Uluöz, Mutlu Türkmen","doi":"10.1186/s13102-024-01013-1","DOIUrl":"10.1186/s13102-024-01013-1","url":null,"abstract":"<p><strong>Background: </strong>Considering the low rate of qualitative studies on athletes with anterior cruciate ligament reconstruction (ACLR), aiming to access in-depth data, we thought that the utilization of the qualitative method would allow us to collect the appropriate and sufficient data to yield novel findings and achieve sound conclusions. The study's aim was to investigate anterior cruciate ligament (ACL) injury experience processes in athletes who had undergone isolated ACLR, reveal the clinically related milestones, and highlight the necessary gaps.</p><p><strong>Methods: </strong>Semi-structured interview techniques, in-depth follow-up questions, and thematic analysis were used to explore the experiences of participants with isolated ACL injuries 1-3 years after surgical treatment. The study was conducted in the Orthopaedics and Traumatology outpatient clinic of the Adana City Training and Research Hospital and included 14 male athletes who had undergone isolated primary ACLR. The study group's demographic and qualitative data were collected in the first week of September 2023. The member checking process was completed in the third following week. A thematic analysis checklist was used to ensure the reliability of the thematic analysis. The Consolidated Criteria for Reporting of Qualitative Research (COREQ) guidelines were followed.</p><p><strong>Results: </strong>The experiences of 14 patients (22.78 ± 3.76 years, all males) were summarized into four themes that emerged from the data analysis process: 'The Distinctions in the Participants' Experiences Regarding the Moment of Injury,' 'Gathering Information about the ACL Injury,' 'Factors That Facilitate The Treatment Process and Reinforce Positive Experiences,' and 'Desperate Plight: Main Points of Patients' Negative Experiences.' Based on the main themes, there were 14 subthemes.</p><p><strong>Conclusions: </strong>Our study revealed that varying perceptions of ACL injury presented by the participants, which were caused by all stakeholders, including themselves, the professional environment, family members, social network, and the healthcare staff, showed that the physical and psychological impacts of the injury were observed in different severity levels at each stage of the process. We believe that an extensive guide for athletes with ACL injuries that includes all components of well-being and displays the required details for the sports club/coach, family/companion, and physician.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"225"},"PeriodicalIF":2.1,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533266/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142576491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Federico Roggio, Bruno Trovato, Martina Sortino, Michele Vecchio, Giuseppe Musumeci
{"title":"Self-selected speed provides more accurate human gait kinematics and spatiotemporal parameters than overground simulated speed on a treadmill: a cross-sectional study.","authors":"Federico Roggio, Bruno Trovato, Martina Sortino, Michele Vecchio, Giuseppe Musumeci","doi":"10.1186/s13102-024-01011-3","DOIUrl":"10.1186/s13102-024-01011-3","url":null,"abstract":"<p><strong>Background: </strong>Walking speed, a key element of gait analysis, is essential for evaluating the biomechanics of the musculoskeletal system and is typically assessed on flat surfaces, such as walkways or treadmills. While many authors have compared the differences and similarities between treadmill and overground walking, no studies have yet investigated the differences between treadmill gait analysis at self-selected speed (SS) and overground simulated speed (OS). The hypothesis is that accurate kinematic measurements depend on selecting the correct gait speed; however, a mismatch between the perceived comfortable treadmill speed and actual overground speed may affect the accuracy of treadmill gait analyses. This study aimed to assess treadmill gait in healthy young adults by comparing the SS with the OS. The objectives were to determine whether participants could match SS with OS on a treadmill, examine sex differences in gait kinematics and spatiotemporal parameters (KSP) at different speeds, and identify which speed better reflects natural gait kinematics.</p><p><strong>Methods: </strong>A total of 60 healthy men and 70 healthy women, aged 22-35 years, participated in this cross-sectional study to investigate the gait kinematics and spatiotemporal differences between the SS and OS. Student's t-test, Bonferroni adjustment, Cohen's effect size, and quadratic regression were employed to analyse differences across walking speeds and groups.</p><p><strong>Results: </strong>A discrepancy between OS and SS was observed in 66.4% of the participants. Our findings revealed that the adjusted R² values for KSP at SS were consistently greater than those at OS, suggesting that SS offers a more robust and accurate representation of gait kinematics, whereas OS is less reliable.</p><p><strong>Conclusions: </strong>These findings underscore the importance of individualized speed selection in gait analysis, as it significantly impacts the accuracy of kinematic and spatiotemporal measurements. This insight is pivotal for clinicians and researchers to develop more effective rehabilitation strategies and comprehensively understand gait dynamics.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"226"},"PeriodicalIF":2.1,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11533392/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142576497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eduard Isenmann, Steffen Held, Stephan Geisler, Ulrich Flenker, Ian Jeffreys, Christoph Zinner
{"title":"The effect of the menstrual cycle phases on back squat performance, jumping ability and psychological state in women according to their level of performance -a randomized three-arm crossover study.","authors":"Eduard Isenmann, Steffen Held, Stephan Geisler, Ulrich Flenker, Ian Jeffreys, Christoph Zinner","doi":"10.1186/s13102-024-01010-4","DOIUrl":"10.1186/s13102-024-01010-4","url":null,"abstract":"<p><strong>Objective: </strong>The influence of the menstrual cycle on practical power performance such as barbell back squats and jumping performance in women has not yet been fully investigated. In addition, the performance level of athletes has not been considered in previous studies. This study aimed to investigate the influence of different cycle phases on acute back squat performance, jumping ability and psychological state concerning the performance level.</p><p><strong>Methods: </strong>24 female strength athletes (age: 25.2 ± 3.3 years; height: 169.5 ± 3.4 cm; body weight: 67.7 ± 7.3 kg) were recruited for the study. Level of performance was classified according to Santos et al. (intermittent (n = 13), advanced (n = 6), highly advanced (n = 5)). Participants were tested for 1RM barbell back squat and jumping performance (countermovement and squat jump) as well as two questionnaires assessing their psychological states in the menses (M), late follicular phase (FP) and mid-luteal phase (LP) in three MC. Saliva estradiol and progesterone concentrations with a menstrual cycle diary were used to confirm a normal MC. A principal components analysis for power performance, well-being, relaxation and alertness was carried out and a linear mixed model was used for statistical evaluation.</p><p><strong>Results: </strong>No significant differences were found between the MC phases in performance scores (p > 0.05), readiness (p > 0.05) and alertness (p > 0.05). However, a high correlation between MC phases, performance level and back squat performance was detected. Correlation analyses indicate that a higher performance level results in a higher variation depending on the MC of the squat performance. For well-being, a significantly lower score was detected in M than in FP and LP.</p><p><strong>Conclusion: </strong>In general the performance score of the lower body is not influenced by the MC. If strength performance and jumping ability are considered separately, there are indications that strength capability is influenced at a higher performance level. In addition, individual variance was also observed, so this should also be considered. However, further studies are needed to confirm this assumption due to the small sample sizes of the individual performance levels.</p><p><strong>Trial registration: </strong>German registry for clinical studies (DRKS00034816, Date: 08/01/2024).</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"224"},"PeriodicalIF":2.1,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11531699/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142564913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cirley Pinheiro Ferreira, Valmir Oliveira Silvino, Rebeca Gonçalves Trevisano, Rayane Carvalho de Moura, Sandro Soares Almeida, Marcos Antonio Pereira Dos Santos
{"title":"Influence of genetic polymorphism on sports talent performance versus non-athletes: a systematic review and meta-analysis.","authors":"Cirley Pinheiro Ferreira, Valmir Oliveira Silvino, Rebeca Gonçalves Trevisano, Rayane Carvalho de Moura, Sandro Soares Almeida, Marcos Antonio Pereira Dos Santos","doi":"10.1186/s13102-024-01001-5","DOIUrl":"10.1186/s13102-024-01001-5","url":null,"abstract":"<p><strong>Background: </strong>Talented athletes exhibit remarkable skills and performance in their respective sports, setting them apart from their peers. It has been observed that genetic polymorphisms can influence variations in sports performance, leading to numerous studies aimed at validating genetic markers for identifying sports talents. This study aims to evaluate the potential contribution of genetic factors associated with athletic performance predisposition in identifying sports talents.</p><p><strong>Methods: </strong>A systematic review was conducted following the PRISMA framework, utilizing the PICO methodology to develop the research question. The search was limited to case-control studies published between 2003 and June 2024, and databases such as Medline, LILACS, WPRIM, IBECS, CUMED, VETINDEX, Web of Science, Science Direct, Scopus and Scielo were utilized. The STREGA tool was employed to assess the quality of the selected studies.</p><p><strong>Results: </strong>A total of 1,132 articles were initially identified, of which 119 studies were included in the review. Within these studies, 50 genes and 94 polymorphisms were identified, showing associations with sports talent characteristics such as endurance, strength, power, and speed. The most frequently mentioned genes were ACTN3 (27.0%) and ACE (11.3%).</p><p><strong>Conclusion: </strong>The ACE I/D and ACTN3 R577X polymorphisms are frequently discussed in the literature. Although athletic performance may be influenced by different genetic polymorphisms, limitations exist in associating them with athletic performance across certain genotypes and phenotypes. Future research is suggested to investigate the influence of polymorphisms in elite athletes from diverse backgrounds and sports disciplines.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"223"},"PeriodicalIF":2.1,"publicationDate":"2024-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11529235/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nan Hu, Fengshan Huang, Rui Yu, Neil Chen Yi Lun MacAlevey, Yi Zeng, Ping Miao
{"title":"The investigation of ultrasound to assess lateral abdominal wall activation with different types of core exercises.","authors":"Nan Hu, Fengshan Huang, Rui Yu, Neil Chen Yi Lun MacAlevey, Yi Zeng, Ping Miao","doi":"10.1186/s13102-024-01009-x","DOIUrl":"10.1186/s13102-024-01009-x","url":null,"abstract":"<p><strong>Background: </strong>Core training is the foundation of physical exercise. The activation of the lateral abdominal wall (LAW) muscles in the core muscles, particularly the transversus abdominal (TrA) muscles, has a stabilizing effect on the chest and abdomen. Therefore, we need to focus on the training effect of the TrA. There are many ways to measure the LAW. Ultrasound can assess the effect of training in real time and intuitively. Therefore, we intend to evaluate the activation of the LAW in different types of core training using ultrasound, to determine the best movements that can activate the TrA and train the core muscles.</p><p><strong>Methods: </strong>22 healthy subjects (male 10, female 12, age 22.82 ± 0.98, BMI 20.78 ± 2.27) were included. The subjects were given the following instructions to perform breathing exercises at different positions: calm breathing and deep breathing at 0° hip flexion and 0° knee flexion; calm breathing, deep breathing, abdominal crunches and ball crunches at 45° hip flexion and 90° knee flexion; and calm breathing, deep breathing, abdominal crunches and ball crunches at 90° hip flexion and 90° knee flexion. The muscle thicknesses of the bilateral transversus abdominis (TrA), internal oblique (IO), external oblique (EO), and LAW muscles were measured using ultrasonography at the end of expiration during the above movements.</p><p><strong>Results: </strong>(1) The action with the greatest contraction ratio of the TrA was deep exhalation, which was significantly greater than crunch and ball crunch; (2) During deep exhalation, the TrA had the greatest contraction ratio, significantly greater than the IO and EO. (3) The TrA was thinnest during deep exhalation at 90°, followed by 45° and 0°.</p><p><strong>Conclusion: </strong>In healthy young people, deep expiration with 90° hip flexion and 90° knee flexion was the optimal action for activating the LAW, especially the TrA.</p>","PeriodicalId":48585,"journal":{"name":"BMC Sports Science Medicine and Rehabilitation","volume":"16 1","pages":"222"},"PeriodicalIF":2.1,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11514915/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}