As previous literature updates, I have performed a PubCrawler search looking for football articles in NCBI Medline (PubMed) and GenBank databases.
Following studies were retrieved for this week:
1 Assessing Lower-Extremity Visuo-Motor Reaction Time in Young Male Soccer Players: Test-Retest Reliability and Minimum Detectable Change of the Brain Pro System
Reference: Percept Mot Skills. 2024 Apr 17:315125241248306. doi: 10.1177/00315125241248306. Online ahead of print.
Authors: Erhan Secer, Derya Ozer Kaya
Summary: A reliable, versatile means of assessing visuo-motor reaction time (V-MRT) is important to football (soccer) players for many reasons, including the fact that faster V-MRT is a critical sport skill that may even play a role in reducing common sports injuries to the lower muscle extremities that can be associated with lost time on the field. We aimed to determine the test-retest reliability and minimum detectable change (MDC) of the Brain Pro System for assessing lower-extremity V-MRT in young male football players. We had 68 participants (M age = 16.35, SD = 1.71 years) perform two assessment sessions one-week apart. For test-retest reliability, we calculated a one-way intra-class correlation coefficient (ICC) at the 95% confidence interval and provided the standard error of measurement (SEM) and minimum detectable change (MDC) (MDC = SEM × 1.96 × √2) for V-MRTs. We obtained excellent V-MRT test-retest reliability for dominant lower-extremity, non-dominant lower-extremity, and dominant and non-dominant lower-extremities (ICC2,1 = .93, 95%CI = .89-.96; ICC2,1 = .94, 95%CI = .91-.96; ICC2,1 = .96, 95%CI = .94-.97; respectively). The calculated MDC for the dominant lower-extremity V-MRT, the non-dominant lower-extremity V-MRT, and dominant and non-dominant lower-extremities (random) V-MRT were 1.21 seconds, 1.13 seconds, and 1.21 seconds, respectively. Brain Pro System had excellent reliability for assessing lower-extremity V-MRT in young male football players. The MDC values at the 95% confidence level (MDC95) we obtained were reliable for assessing clinically meaningful V-MRT changes.
2 Effect of the role, playing position and the body characteristics on physical performance in female soccer players
Reference: Heliyon. 2024 Apr 4;10(7):e29240. doi: 10.1016/j.heliyon.2024.e29240. eCollection 2024 Apr 15.
Authors: Omar Sánchez-Abselam, Francisco Tomás González-Fernández, Antonio Figueiredo, Alfonso Castillo-Rodríguez, Wanesa Onetti-Onetti
Summary: The aims of this study were to know the physical demands according to the playing position and team role, and to assess the effect of the body characteristics on the physical performance of semi-professional female soccer players. Forty-five female semi-professional soccer players during 9 home-matches of the 2021-2022 season were analyzed and GPS devices (GPEXE ®) were used. ANCOVA tests were performed with playing time as covariate. The results showed greater physical demands in forwards and wide-midfielders and offensive role players. Total distance, metabolic power, accelerations, deaccelerations, and distance covered to medium and high speed obtained a strong effect size in these analyses according to the playing position. Furthermore, relationships between body weight and physical performance were found (p < 0.05). In conclusion, the main finding of this study showed that semi-professional female soccer players compete differently, caused by differentiated functions, evidenced in the playing positions and role in the team. Offensive role, forwards and wide-midfielder female players performed the highest physical demands in the competition. This study has shown relevant information for coaches, S&C coaches, and training staff of the semi-professional female soccer teams in order to propose new keys and ways of planning training sessions.
3 Rehabilitation and Return to Play Protocols After Anterior Cruciate Ligament Reconstruction in Soccer Players: A Systematic Review
Reference: Am J Sports Med. 2024 Apr 15:3635465241233161. doi: 10.1177/03635465241233161. Online ahead of print.
Authors: McKenzie A Mayer, Marisa Deliso, Ian S Hong, Bryan M Saltzman, Raphael S Longobardi, Peter F DeLuca, Louis Rizio
Summary: Rehabilitation after anterior cruciate ligament ACL reconstruction (ACLR) is crucial for safe return to play (RTP) and reducing the chances of a reinjury. Yet, there is no consensus on the ideal functional tests to assess rehabilitation progress in soccer players after ACLR. The primary objective was to highlight the existing gap in the literature concerning the most effective standardized rehabilitation protocols and testing for facilitating successful RTP among soccer players. A systematic review using PubMed, Embase, and the Cochrane Central Register of Controlled Trials (CENTRAL) was conducted. Inclusion criteria encompassed original studies (level of evidence 1-4) that examined rehabilitation protocols, metrics of knee rehabilitation, and clinical outcomes after ACLR in soccer players. This review incorporated 23 studies, predominantly retrospective case series, with a total number of 874 soccer players who underwent ACLR and rehabiliation. 5 (21.7%) studies utilized an accelerated rehabilitation protocol, while 7 (30.4%) of studies utilized a criterion-based rehabilitation. A wide heterogeneity of data was extracted including functional tests of rehabilitation and RTP such as strength test batteries, hop test batteries, and movement quality assessments. Of the 23 selected studies, 2 (8.7%) used all 3 test batteries, 8 (34.8%) used 2 test batteries, 12 (52.2%) used 1 test battery, and 1 (4.3%) used 0 of the test batteries. The mean time between surgery and RTP ranged from 3 to 8 months with only 2 (8.7%) studies reporting complications after ACLR. Lastly, out of the total studies examined, 9 (39.1%) assessed patient-reported outcome measures (PROMs), all of which demonstrated significant improvement from the initial assessment to the final follow up. Soccer-specific rehabilitation after ACLR lacks standardization. Even though many studies have assessed protocols for optimal RTP and reduced secondary ACL injuries, there is a gap in the literature regarding the most effective protocols and RTP testing. The methodology reported by Kyritsis et al could serve as a foundation for future prospective randomized multicenter studies to establish a standard rehabilitation protocol and enable a successful return to soccer.
4 External training load and performance recovery after small-sided games in soccer: Insights for return-to-play management
Reference: AIMS Public Health. 2024 Mar 14;11(1):315-329. doi: 10.3934/publichealth.2024016. eCollection 2024.
Authors: Roberto Modena, Federico Schena
Summary: The return-to-play process‘ characteristics can vary by injury and sport type but are typically composed of phases of different durations, training targets, and intensities that gradually increase the physiological and mechanical load. In team sports, contact drills are a necessary part of the last phases of this process, and they should be planned using the optimal mechanical load. The present study investigated the external load and kinetic recovery in U19 soccer players performing 6vs6 and 3vs3 small-sided games. A global positioning system (GPS) measured external load metrics. The rate of perceived exertion (RPE) was registered at the end. Total quality of recovery (TQR) was collected at the beginning of the training session and after 24 h. Moreover, before and after the small-sided games (SSGs) and at 24 h, delayed-onset muscle soreness (DOMS) of the legs, sprinting time, and vertical jump height (CMJ) were collected. 6vs6 presented higher values in total distance low-, moderate-, high, and very-high-speed distance, and maximum speed (p < 0.05). However, 3vs3 showed higher number of sprints, acceleration, and deceleration at different intensities. Furthermore, no difference was shown in RPE. The effect of fatigue on sprint seems greater for 6vs6, showing an impairment persistent at 24 h (p < 0.05). Moreover, CMJ height was impaired after 6vs6 and at 24 h (p < 0.05) but did not change after 3vs3 (p > 0.05). DOMS values after SSGs and at 24 h were higher than baseline for both conditions (p < 0.05), while TQR decreased at 24 h in both conditions (p < 0.05). Based on our results, it seems that 6vs6, leading to a greater high-speed running distance, might cause a training load that needs more time to recover. This point may be crucial in a return-to-play process, especially when hamstring muscles are involved.
5 Use of the concussion check protocol for concussion assessment in a female soccer team over two consecutive seasons in New Zealand
Reference: J Neurol Sci. 2024 Apr 13:460:123011. doi: 10.1016/j.jns.2024.123011. Online ahead of print.
Authors: Doug King, Patria Hume, Trevor Clark, Jennifer Wethe
Summary: The aim was to address deficiencies in access to sports sideline medical care by using a Concussion Check Protocol (CCP) for non-medically-trained people. A prospective observational cohort study was undertaken on a single amateur female club-based soccer team over two consecutive years in New Zealand utilising a non-medically trained support person termed a Safety officer. CCP is an extension of the King-Devick test with features such as warning signs and symptoms of concussion built into the application. All players suspected of having a potential concussive injury were tested on the match sideline. The study overall incidence of match-related concussions was 20.8 (95% CI: 11.8 to 36.6) per 1000 match-hrs, with mean missed-match duration of 31 (95% CI: 27.9 to 34.1) days. Twelve players over the study had a significantly slower post-injury KD (49.9 [44.3 to 64.1]s; χ2(1) = 11.0; p = 0.0009; z = -2.9; p = 0.0033; d = 0.30) and/or reported symptoms, compared with their own baseline (47.2 [44.3 to 64.1]s). CCP had an overall sensitivity of 100% (95% CI: 73.5% to 100.0%), specificity of 100% (95% CI: 69.2% to 100.0%) and positive predictive value (PPV) of 100% (84.6% to 100.0%). Sideline use of CCP was undertaken successfully by non-medically trained people and provided a reliable platform for concussion identification.
6 Event detection in football: Improving the reliability of match analysis
Reference: PLoS One. 2024 Apr 18;19(4):e0298107. doi: 10.1371/journal.pone.0298107. eCollection 2024.
Authors: Jonas Bischofberger, Arnold Baca, Erich Schikuta
Download link: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0298107
Summary: With recent technological advancements, quantitative analysis has become an increasingly important area within professional sports. However, the manual process of collecting data on relevant match events like passes, goals and tacklings comes with considerable costs and limited consistency across providers, affecting both research and practice. In football, while automatic detection of events from positional data of the players and the ball could alleviate these issues, it is not entirely clear what accuracy current state-of-the-art methods realistically achieve because there is a lack of high-quality validations on realistic and diverse data sets. This paper adds context to existing research by validating a two-step rule-based pass and shot detection algorithm on four different data sets using a comprehensive validation routine that accounts for the temporal, hierarchical and imbalanced nature of the task. Our evaluation shows that pass and shot detection performance is highly dependent on the specifics of the data set. In accordance with previous studies, we achieve F-scores of up to 0.92 for passes, but only when there is an inherent dependency between event and positional data. We find a significantly lower accuracy with F-scores of 0.71 for passes and 0.65 for shots if event and positional data are independent. This result, together with a critical evaluation of existing methodologies, suggests that the accuracy of current football event detection algorithms operating on positional data is currently overestimated. Further analysis reveals that the temporal extraction of passes and shots from positional data poses the main challenge for rule-based approaches. Our results further indicate that the classification of plays into shots and passes is a relatively straightforward task, achieving F-scores between 0.83 to 0.91 ro rule-based classifiers and up to 0.95 for machine learning classifiers. We show that there exist simple classifiers that accurately differentiate shots from passes in different data sets using a low number of human-understandable rules. Operating on basic spatial features, our classifiers provide a simple, objective event definition that can be used as a foundation for more reliable event-based match analysis.
7 Analysis of football research trends using text network analysis
Reference: PLoS One. 2024 Apr 18;19(4):e0299782. doi: 10.1371/journal.pone.0299782. eCollection 2024.
Authors: Jongwon Kim
Download link: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0299782
Summary: This study was aimed to identify football research trends in various periods. A total of 30,946 football papers were collected from a representative academic database and search engine, the ‚Web of Science‘. Keyword refinement included filtering nouns, establishing synonyms and thesaurus, and excluding conjunctions, and the Cyram’s Netminer 4.0 software was used for network analysis. A centrality analysis was conducted by extracting the words corresponding to the top 2% of the main research topics to obtain the degree and eigenvector centralities. The most frequently mentioned research keywords were injury, performance, and club. Keyword performance showed the highest degree centrality (0.294) and keyword world and cup showed the highest eigenvector centrality (0.710). The keyword with the highest eigenvector degree changed from injury in the 1990s and world in the 2000s to cup since the 2010s. Although various studies on football injuries have been conducted, research on the sport itself has recently been conducted. This study provides fundamental information on football trends from research published over the past 30 years.
8 Arabic translation and cultural adaptation of a training load and player monitoring in high-level football questionnaire: A cognitive interview study
Reference: PLoS One. 2024 Apr 17;19(4):e0302006. doi: 10.1371/journal.pone.0302006. eCollection 2024.
Author: Abdulmalek K Bursais
Download link: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302006
Summary: Understanding the current practice and the associated challenges in applying monitoring tools is essential to improving football performance in the Middle East, thus the purpose was to translate and culturally adapt a published questionnaire that assessed the practice and perception of High-Level football teams toward Training Load and Player Monitoring to be used in the Arabic context, aiming to contribute to the enhancement of football performance, player welfare, and training quality in the region. A total of 15 Arabic-speaking coaches (mean age 42.6 ± 9.9 years; mean experience 10.9 ± 5.7 years; 53.3% football coaches and 46.7% strength & conditioning coaches) were conveniently selected to participate in this study. The current research followed a systematic cross-cultural adaptation process, which included forward translation, synthesis, back-translation, expert panel review, and pre-testing through cognitive interviewing. Three rounds of cognitive interviews were conducted with the 15 participants. Descriptive statistics, including means with standard deviations and frequencies with percentages, were reported for the participants‘ characteristics. With some minor linguistic modifications to the questionnaire by the expert committee (i.e., adjustments such as Sport Scientist to Sport Science Specialist), the instrument was translated and culturally adapted into Arabic. All participants confirmed that the resulting Arabic versions of the training load and player monitoring in high-level football questionnaires were appropriate and fully understandable for Arabic speakers in conveying the intended meanings of the items in each. The training load and player monitoring in the high-level football questionnaire was successfully translated and culturally adapted into Arabic and are now ready for use in the Arabic context, offering an opportunity for comprehensive research and enabling tailored performance optimization strategies, which could ultimately lead to advancements in player development and welfare within Arabic-speaking football communities.
9 Imaging associations enhance the understanding of ECG abnormalities in male Brazilian football players: findings from the B-Pro Foot ECG study
Reference: Br J Sports Med. 2024 Apr 15:bjsports-2023-108053. doi: 10.1136/bjsports-2023-108053. Online ahead of print.
Authors: Filipe Ferrari, Anderson D da Silveira, Patrícia K Ziegelmann, Haroldo Aleixo, Guilherme D Dilda, Luiz G M Emed, Flávia C O Magalhães, Fernando B Cardoso, Henrique C da Silva, Felipe E F Guerra, Luciano G Soares, Fernando Bassan, Fabrício Braga, Artur H Herdy, Victor Froelicher, Ricardo Stein; B-Pro Foot ECG Collaborators
Summary: The purpose was to evaluate the prevalence of abnormal ECG findings and their association with imaging results in male Brazilian football players. The ‚B-Pro Foot ECG‘ is a multicentre observational study conducted in 82 Brazilian professional clubs. It analysed 6125 players aged 15-35 years (2496 white, 2004 mixed-race and 1625 black individuals) who underwent cardiovascular screening from 2002 to 2023. All ECGs were reviewed by two experienced cardiologists in the athlete’s care. Those with abnormal findings underwent further investigations, including a transthoracic echocardiogram (TTE). Cardiac magnetic resonance (CMR) was subsequently performed based on TTE findings or clinical suspicion. In total, 180 (3%) players had abnormal ECGs and 176 (98%) showed normal TTE results. Athletes aged 26-35 years had a higher prevalence of abnormal ECGs than younger athletes (15-25 years). Black players had a higher prevalence of T-wave inversion (TWI) in the inferior leads than white players (2.6% vs 1.4%; p=0.005), as well as in V5 (2.9%) and V6 (2.1%) compared with white (1.2% and 1.0%; p<0.001) and mixed-race (1.5% and 1.2%; p<0.05) players, respectively. TTE parameters were similar across ethnicities. However, four out of 75 players with inferolateral TWI showed abnormal TTEs and CMR findings consistent with cardiomyopathies. CMR also showed cardiomyopathies or myocarditis in four players with inferolateral TWI and normal TTEs. In total, nine (0.1%) athletes were diagnosed with cardiac diseases and were followed for 40±30 months, with no cardiac events documented. This study found a 3% prevalence of abnormal ECGs in male Brazilian football players. Inferolateral TWI was associated with cardiac pathologies confirmed by CMR, even in athletes with a normal TTE.
10 Comparison of Metabolic Power and Energy Cost of Submaximal and Sprint Running Efforts Using Different Methods in Elite Youth Soccer Players: A Novel Energetic Approach
Reference: Sensors (Basel). 2024 Apr 17;24(8):2577. doi: 10.3390/s24082577.
Authors: Gabriele Grassadonia, Pedro E Alcaraz, Tomás T Freitas
Summary: Sprinting is a decisive action in soccer that is considerably taxing from a neuromuscular and energetic perspective. This study compared different calculation methods for the metabolic power (MP) and energy cost (EC) of sprinting using global positioning system (GPS) metrics and electromyography (EMG), with the aim of identifying potential differences in performance markers. Sixteen elite U17 male soccer players (age: 16.4 ± 0.5 years; body mass: 64.6 ± 4.4 kg; and height: 177.4 ± 4.3 cm) participated in the study and completed four different submaximal constant running efforts followed by sprinting actions while using portable GPS-IMU units and surface EMG. GPS-derived MP was determined based on GPS velocity, and the EMG-MP and EC were calculated based on individual profiles plotting the MP of the GPS and all EMG signals acquired. The goodness of fit of the linear regressions was assessed by the coefficient of determination (R2), and a repeated measures ANOVA was used to detect changes. A linear trend was found in EMG activity during submaximal speed runs (R2 = 1), but when the sprint effort was considered, the trend became exponential (R2 = 0.89). The EMG/force ratio displayed two different trends: linear up to a 30 m sprint (R2 = 0.99) and polynomial up to a 50 m sprint (R2 = 0.96). Statistically significant differences between the GPS and EMG were observed for MP splits at 0-5 m, 5-10 m, 25-30 m, 30-35 m, and 35-40 m and for EC splits at 5-10 m, 25-30 m, 30-35 m, and 35-40 m (p ≤ 0.05). Therefore, the determination of the MP and EC based on GPS technology underestimated the neuromuscular and metabolic engagement during the sprinting efforts. Thus, the EMG-derived method seems to be more accurate for calculating the MP and EC in this type of action.
11 Analysing the Influence of Speed and Jumping Performance Metrics on the Percentage Change of Direction Deficit in Adolescent Female Soccer Players
Reference: Life (Basel). 2024 Apr 3;14(4):466. doi: 10.3390/life14040466.
Authors: Alberto Roso-Moliner, Oliver Gonzalo-Skok, Víctor Emilio Villavicencio Álvarez, Santiago Calero-Morales, Elena Mainer-Pardos
Download link: https://www.mdpi.com/2075-1729/14/4/466
Summary: Studies show that although female soccer players often have shorter change of direction (COD) deficits than males, indicating different biomechanical profiles, there is a lack of research on the impact of physical metrics on COD performance in females. The purpose of this work was to analyse whether performance metrics based on speed and jumping could explain the variation in %CODD in young female soccer players. Thirty-three highly trained adolescent female soccer players with an age of 16 ± 0.95 years, a body mass of 55.7 ± 7.22 kg, and a height of 160.4 ± 5.22 cm performed COD180 tests, 10 m and 30 m sprint tests, single-leg countermovement, and horizontal jumps. Acceleration in the first 10 m of a sprint was identified as a significant predictor of COD180 performance (R2 = 28%), (R2 = 50%), (p < 0.01), indicating that early sprint performance may largely determine an individual’s ability to change direction. However, no predictors were found for %CODD. Significant correlations were observed between COD180 performance and %CODD, acceleration, linear speed, and horizontal jump performance (r = -0.59 to 0.70; p < 0.05). The study suggests that specific physical performance metrics, particularly early acceleration, are crucial for enhancing COD skills in female soccer players, emphasizing the need for targeted training interventions.
12 Impact of a Service-Learning Program Using Soccer Training on the Emotional and Behavioral Problems of Children with Developmental Disabilities
Reference: Children (Basel). 2024 Apr 14;11(4):467. doi: 10.3390/children11040467.
Authors: Huan Meng, Yonghwan Kim, Kyujin Lee
Download link: https://www.mdpi.com/2227-9067/11/4/467
Summary: Children with developmental disabilities may develop emotional and behavioral problems that arise from difficulties in social interaction, and therefore, a process of providing and testing intervention activities for emotional and behavioral issues in the early stages of development is required. This study evaluated the effects of a 12-week service-learning exercise program on children with developmental disabilities, contrasting it with a control group not engaged in specific physical activities. The participants included 18 children with developmental disabilities who participated in the service-learning exercise program (SLG) and 18 children with developmental disabilities (Non-SLG) who did not participate. The Korean Behavior Assessment System for Children-2 was used to evaluate children’s emotional and behavioral problems. A two-way repeated-measures ANOVA was conducted to verify the interaction effect between the group and period according to program participation. The results showed the positive internalization of problem behaviors in the emotional domain (F = 4.291, p = 0.011), attention deficit/hyperactivity (F = 4.761, p = 0.012), and personal adjustment (F = 4.116, p = 0.023) in the SLG group. These results suggest that participation in a service-learning exercise program positively affected emotional and behavioral problems in children with developmental disabilities. This could provide a basis for future research on service-learning exercise programs for children with developmental disabilities.
13 A Systematic review of the factors that affect soccer players‘ short-passing ability-based on the Loughborough Soccer Passing Test
Reference: BMC Sports Sci Med Rehabil. 2024 Apr 26;16(1):96. doi: 10.1186/s13102-024-00880-y.
Authors: Bihan Wang, Bin Wan, Shu Chen, Yu Zhang, Xiaorong Bai, Wensheng Xiao, Changfa Tang, Bo Long
Download link: https://bmcsportsscimedrehabil.biomedcentral.com/counter/pdf/10.1186/s13102-024-00880-y.pdf
Summary: This study synthesizes evidence from the Loughborough Passing Test to evaluate the short-passing ability of soccer players and summarizes the reported variables that affect this ability to provide support for the development and improvement of short-passing abilities in soccer players. In this systematic review using the PRISMA guidelines, a comprehensive search was conducted in Web of Science, PubMed, and EBSCOhost from inception to July 2023 to identify relevant articles from the accessible literature. Only studies that used the Loughborough test to assess athletes‘ short-passing ability were included. The quality of the included studies was independently assessed by two reviewers using the PEDro scale, and two authors independently completed the data extraction. Based on the type of intervention or influencing factor, ten studies investigated training, nine studies investigated fatigue, nine studies investigated supplement intake, and five studies investigated other factors. Evidence indicates that fitness training, small-sided games training, and warm-up training have positive effects on athletes‘ short-passing ability, high-intensity special-position training and water intake have no discernible impact, mental and muscular exhaustion have a significantly negative effect, and the effect of nutritional ergogenic aid intake is not yet clear. Future research should examine more elements that can affect soccer players‘ short-passing ability.
14 Intra- and inter-limb strength imbalance and asymmetry in soccer: A comparison of elite senior and junior players
Reference: PLoS One. 2024 Apr 26;19(4):e0302474. doi: 10.1371/journal.pone.0302474. eCollection 2024.
Authors: Robert Śliwowski, Thierry Paillard, Łukasz Bojkowski, Witold Dudziński, Mikołaj Patek, Jakub Marynowicz
Download link: https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0302474
Summary: Evaluation of muscle strength imbalance can be an important element in optimizing the training process of soccer players. The purpose of the study was to examine isokinetic peak torque (PT) and total work (TW) exerted by both knee extensors (quadriceps or Q) and flexors (hamstrings or H), intra-limb imbalance and the magnitude and direction of inter-limb asymmetry in top elite senior (n = 109) and junior (n = 74) soccer players. An isokinetic dynamometry was used to measure maximum peak torque of quadriceps (PT-Q) and hamstrings (PT-H) at an angular velocity of 60° ·s-1, as well as the total work for extensors (TW-Q) and flexors (TW-H) at an angular velocity of 240° ·s-1 in the dominant (DL) and non-dominant leg (NDL) during concentric muscle contraction. Intra-limb imbalance and inter-limb asymmetries were calculated using a standard equation. Statistical analysis using t-test and Mann-Whitney U-test revealed: (a) no differences (p > 0.05) between groups for PT-Q and PT-H, (b) greater strength levels (p < 0.05) for TW-Q and TW-H of senior players than juniors, and (c) no differences (p > 0.05) between groups for intra-limb imbalance and inter-limb asymmetry. Additionally, Pearson’s chi-kwadrat (χ2) analysis showed no differences (p > 0.05) between groups for intra-limb imbalance and inter-limb asymmetry in relation to the ’normative‘ values accepted in the literature that indicate an increase in the risk of knee injury. This study shows that isokinetic assessment can be an important tool to identify imbalances/asymmetries and to develop strategies to reduce the risk of muscle injury.
15 Mental Health in First- and Second-Division Soccer Players: A Cross-Sectional Study
Reference: Sports (Basel). 2024 Apr 11;12(4):106. doi: 10.3390/sports12040106.
Authors: Lucía Bonet, Ana Benito, Héctor Usó, Marc Peraire, Gonzalo Haro, Isabel Almodóvar-Fernández
Download link: https://www.mdpi.com/2075-4663/12/4/106
Summary: The benefits of sport in mental health have been broadly studied. However, few studies have examined these outcomes in high-performance athletes. We aimed to analyze the state of the mental health of the Villarreal Soccer Club’s first- (FD) and second-division (SD) players and the possible mediating effects of sex and professional category. This was a cross-sectional study with an initial sample of 108 soccer players (final sample n = 54). Data from MINI, HARS, HDRS, BARRAT-11 and SCSRQ questionnaires were analyzed. The mean age was 23.41 years (SD = 4.56) and 61.1% (n = 33) were men. A proportion of 24.1% (n = 13) stated that they had undergone mental health treatment, 7.4% (n = 4) had taken psychotropic drugs, and 2.1% (n = 1) had made a suicide attempt. Differences were observed between the FD and SD players in terms of the sensitivity to punishment (t = -2.2; p = 0.033), overall impulsivity (t = -3.1; p = 0.003), unplanned impulsivity (t = 3.4; p = 0.001), and the HDRS (U = -110.5; p = 0.004), HARS-Total (U = -104.0; p = 0.006) and HARS-Psychological subscale scores (U = -104.0; p = 0.001). Differences were also observed between the female and male SD players for the HARS-Somatic subscale (U = 136.5; p = 0.028). The low values obtained in the clinical scales, together with the reported psychopathological histories, suggested that the Villareal players showed better mental health than the general population.