Sports

13 pages, 1482 KiB

Open AccessArticle

The Role of Sports in Building Resilience: A Machine Learning Approach to the Psychological Effects of the COVID-19 Pandemic on Children and Adolescents

by Giulia Di Martino, Carlo della Valle, Alessandra di Cagno, Giovanni Fiorilli, Giuseppe Calcagno and Daniele Conte

Sports 2025, 13(2), 37; https://doi.org/10.3390/sports13020037 - 3 Feb 2025

Abstract

(1) Background: This study evaluated whether physical activity and sports serve as a protective factor in mitigating COVID-19 pandemic long-term consequences. (2) Methods: A survey of 1702 participants (8–18 years) used the Impact of Event Scale (IES), Generalized Anxiety Disorder Scale (GAD-7), and [...] Read more.

(1) Background: This study evaluated whether physical activity and sports serve as a protective factor in mitigating COVID-19 pandemic long-term consequences. (2) Methods: A survey of 1702 participants (8–18 years) used the Impact of Event Scale (IES), Generalized Anxiety Disorder Scale (GAD-7), and Center for Epidemiological Studies Depression Scale for Children (CES-DC). Participants were categorized based on their engagement in sports, cultural activities, or sedentary behaviors. Statistical analysis included non-parametric tests, CHAID models, and clustering. (3) Results: In total, 65.5% of participants experienced minimal to mild anxiety, and 34.5% reported moderate to severe anxiety. The main predictor of depression is the sample age, followed by the training experience. Depressive symptoms were identified in 71.3% of participants (75.7% adolescents; 64% children). Adolescents with longer training experience (67.6%) showed lower depression compared to those with shorter experience (77.2%). For post-traumatic stress, 38% of children and 46% of adolescents exceeded cut-off scores for significant symptoms, with age and training level identified as key predictors. Among children, sport experience with low weekly frequency was associated with the lowest depression rates (59.5%). (4) Conclusions: Four years after the pandemic, a high percentage of anxiety and depression disorders is observed in the youth population, particularly among adolescents. Sports appear to slightly alleviate this serious condition. Full article

(This article belongs to the Special Issue Benefits of Physical Activity and Exercise to Human Health)

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10 pages, 1112 KiB

Open AccessArticle

Effectiveness of Different Neuromuscular Recovery Strategies in Elite Youth Female Football Players

by Silvia Sedano and Sergio Maroto-Izquierdo

Sports 2025, 13(2), 36; https://doi.org/10.3390/sports13020036 - 29 Jan 2025

Viewed by 454

Abstract

This study aimed to assess the effectiveness of various active recovery strategies in youth female soccer players during competitive tournaments with limited recovery periods (i.e., 24–48 h). Twenty-two elite under-17 female football players participated in this randomized controlled trial, which encompassed fourteen 90 [...] Read more.

This study aimed to assess the effectiveness of various active recovery strategies in youth female soccer players during competitive tournaments with limited recovery periods (i.e., 24–48 h). Twenty-two elite under-17 female football players participated in this randomized controlled trial, which encompassed fourteen 90 min official matches. Participants were randomly allocated to one of three recovery protocols: passive stretching, foam rolling, or lumbopelvic mobility exercises, which were implemented ten minutes after each match. Countermovement jump with free arm (CMJA) height was measured pre-intervention, immediately post-intervention, and 5 h post-intervention. Wellness perception was evaluated 24 h later. Significant enhancements in CMJA height were observed immediately after all recovery protocols and at 5 h post-intervention compared with pre-intervention (p < 0.001). The lumbopelvic mobility protocol yielded the most substantial improvement, significantly surpassing both stretching and foam rolling. Moreover, significant increases in wellness perception were observed following the foam rolling (p < 0.001, ES = 0.95) and mobility (p < 0.05, ES = 0.88) protocols, with the mobility protocol demonstrating a marginally larger effect size than stretching. Active recovery strategies significantly enhanced neuromuscular function and wellness perception in under-17 female soccer players. Lumbopelvic mobility exercises exhibited superior efficacy, suggesting that they should be prioritized in post-match recovery regimens. Full article

(This article belongs to the Special Issue The Prevention and Rehabilitation of Training Injuries)

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16 pages, 1208 KiB

Open AccessArticle

They’re Only Human! Tension and Stress Predict Performance of Softball Umpires in National Championships

by Ronald J. Houison, Andrea Lamont-Mills, Michael Kotiw and Peter C. Terry

Sports 2025, 13(2), 35; https://doi.org/10.3390/sports13020035 - 28 Jan 2025

Viewed by 472

Abstract

The psychology of sports officials is often overlooked in psychology research. The present study addressed this disparity by exploring relationships among the mood, stress, and performance of Australian softball umpires. Six male and two female participants aged 25–68 years (M = 48.95 [...] Read more.

The psychology of sports officials is often overlooked in psychology research. The present study addressed this disparity by exploring relationships among the mood, stress, and performance of Australian softball umpires. Six male and two female participants aged 25–68 years (M = 48.95 ± 17.39 years) each completed the Brunel Mood Scale before games and provided saliva samples on multiple occasions prior to and after officiating games at two Australian National Softball Championships. Data from 65 games were analysed with performance assessed using Softball Australia’s umpire assessment tool. A significant positive relationship (p < 0.01) was found between tension scores and umpire performance. Using a stepwise regression analysis, tension scores and baseline cortisol level collectively explained 22.6% of the variance in umpire performance scores. These findings suggest that umpires require an optimal level of tension in the period leading up to competition to perform successfully, supporting the relationship between tension and performance first proposed by the inverted-U hypothesis. Full article

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12 pages, 239 KiB

Open AccessArticle

Gambling and Gaming: A Comparative Study of Professional Footballers Versus the General Population

by Rafael González-Moret, Isabel Almodóvar-Fernández, María Gimeno, Ana Blanco, Paula Sánchez-Thevenet, Héctor Usó, Gonzalo Haro and Antonio Real-Fernández

Sports 2025, 13(2), 34; https://doi.org/10.3390/sports13020034 - 24 Jan 2025

Viewed by 506

Abstract

(1) Background: Elite sport can increase vulnerability to developing mental health pathologies. The purpose of the study is to determine the frequency at which these behavioural disorders appear in elite footballers and evaluate their relationship with other addictions. (2) Methods: A cross-sectional study [...] Read more.

(1) Background: Elite sport can increase vulnerability to developing mental health pathologies. The purpose of the study is to determine the frequency at which these behavioural disorders appear in elite footballers and evaluate their relationship with other addictions. (2) Methods: A cross-sectional study was conducted between November 2020 and January 2022 on 306 participants. The variables of gambling and gaming were studied. The different groups were compared using Chi-squared tests. Probabilities exceeding 95% (p-values < 0.05) and residuals results greater than 2 or less than −2 were considered significant. (3) Results: There were significant differences between the two groups in terms of alcohol (p < 0.001), tobacco (p < 0.001), and cannabis (p = 0.016) consumption. We also found differences between those who had a history of a nervous disease (p = 0.015). 6.6% of the of football players had a probable diagnosis of a gambling disorder compared to 1% in the general population (p = 0.011). Among the pathological and non-pathological cases of gambling in the football population, significant differences were found between those with a salary of EUR 900–1500/month (p = 0.027) or a history of a nervous pathology (p = 0.021). (4) Conclusions: This study showed that professional football players were vulnerable to mental health pathologies related to gambling. Full article

(This article belongs to the Special Issue Advances in Sport Psychology)

17 pages, 643 KiB

Open AccessArticle

Early Athletic Identity Formation and Development: Perceptions of Elite Gaelic Athletes

by Marion Geary, Niamh Kitching, Mark Campbell and Frank Houghton

Sports 2025, 13(2), 33; https://doi.org/10.3390/sports13020033 - 24 Jan 2025

Viewed by 489

Abstract

Background/Objectives: Athletic identity (AI) is an important part of an elite athlete’s self-concept and can positively impact sports performance, but over-emphasis can lead to potentially negative outcomes. Identity theory suggests that identity is shaped by individuals’ roles, group affiliations, self-perceptions, and important changes [...] Read more.

Background/Objectives: Athletic identity (AI) is an important part of an elite athlete’s self-concept and can positively impact sports performance, but over-emphasis can lead to potentially negative outcomes. Identity theory suggests that identity is shaped by individuals’ roles, group affiliations, self-perceptions, and important changes in personal circumstances. Athlete transitions are changes that occur in an athletes’ athletic and/or non-athletic circumstances, which can impact identity development. Using identity theory, this study aimed to explore the athletic transitions important in early AI formation and development in elite Gaelic athletes. Methods: Nine athletes were purposively sampled and participated in semi-structured interviews that were analysed using a six-step thematic analysis. Results: Findings indicate that the initiation, development, and mastery transitions in sport influence AI formation and align with the identity theory precepts of roles, groups, and persons in identity development. AI formation and development is individualised and shaped by perceived athlete competence, associated external validation, and the increased professionalism and personal commitment associated with higher levels of performance. Conclusion: We call for a greater emphasis to be placed on the development of multi-faceted identity profiles in elite Gaelic athletes. Full article

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21 pages, 1454 KiB

Open AccessArticle

Adherence to the Singapore Integrated 24 h Activity Guidelines for Pre-Primary School Children Before, During and After the COVID-19 Lockdown in Singapore

by Seow Ting Low, Terence Buan Kiong Chua, Dan Li and Michael Chia

Sports 2025, 13(2), 32; https://doi.org/10.3390/sports13020032 - 23 Jan 2025

Viewed by 518

Abstract

The COVID-19 pandemic has significantly disrupted the lives of pre-primary school children in Singapore where increased infection rates prompted lockdown measures that altered children’s daily routines. This study aimed to evaluate the impact of the pandemic on the lifestyle behaviours and health quality [...] Read more.

The COVID-19 pandemic has significantly disrupted the lives of pre-primary school children in Singapore where increased infection rates prompted lockdown measures that altered children’s daily routines. This study aimed to evaluate the impact of the pandemic on the lifestyle behaviours and health quality of 3134 children aged 5 to 6 years across three periods: pre-COVID, COVID-19 lockdown, and COVID-19 endemicity. Data were collected using the Surveillance of Digital Media Habits in Early Childhood Questionnaire (SMALLQ^®) to measure on- and off-screen media habits of children and the Pediatric Quality of Life Inventory (PaedQL) to assess children’s health quality. Adherence to physical activity (PA) guidelines dropped from 32.7% pre-COVID to 27.4% during lockdown but improved to 34.4% in endemicity (p < 0.05). Sleep (SL) adherence followed a similar pattern, decreasing from 33.4% to 27.9% before rising to 40.6% (p < 0.05). Screen time (ST) adherence significantly declined during lockdown (16.7% to 10.8%, p < 0.001). Weak positive correlations with all PaedQL metrics were observed across periods, except during endemicity (p < 0.05). Concerted efforts involving key stakeholders must be made to mitigate the negative effects of the pandemic on children’s lifestyle behaviours and QoL, ensuring they are better prepared for the transition to primary school. Full article

(This article belongs to the Special Issue Advances in Motor Behavior and Child Health)

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10 pages, 960 KiB

Open AccessArticle

The Effects of a Short-Term Supplemental Breathwork Protocol on the Aerobic Performance of Recreational Runners

by Adrian T. Wolff, Sara R. Sherman and Craig A. Horswill

Sports 2025, 13(2), 31; https://doi.org/10.3390/sports13020031 - 23 Jan 2025

Viewed by 378

Abstract

We investigated the effects of a functional breathing program on the aerobic performance of recreational runners. Runners participated in an aerobic endurance training program with functional breathing (FBP; n = 8, 34.8 ± 5.1 yrs, 25.3 ± 2.5 kg·m²) or without [...] Read more.

We investigated the effects of a functional breathing program on the aerobic performance of recreational runners. Runners participated in an aerobic endurance training program with functional breathing (FBP; n = 8, 34.8 ± 5.1 yrs, 25.3 ± 2.5 kg·m²) or without functional breathing (CON; n = 8, 29 ± 5 yrs, 23 ± 2 kg·m²). The treatment group underwent daily breathing exercises, and nasal-only breathing during low-intensity sessions of the training program. The primary outcome variables measured before and after the program included the following: the breath-hold time at rest, the duration and VO_2max with nasal-only breathing, and the VO_2max with normal breathing during a graded running test. The data were analyzed using two-way ANOVA (p < 0.05). We found a significant group x time interaction for breath-hold time (∆ from PRE: +1.9 s [CON], +11.7 s [FBP]; p = 0.04; d = 1.13). However, the changes in the time and VO_2max with nasal-only breathing, and in the VO_2max with normal breathing, did not differ between the FBP and CON groups. A small but significant time (main) effect for the increase in VO_2max (~3.0%, p < 0.05) suggested that both groups had adequate stimuli for physiological adaptations. The four-week supplementary functional breathing protocol increased the breath-hold time, but not the maximum nasal-only breathing time, nasal-only breathing VO_2max, or VO_2max, in recreational runners. Full article

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16 pages, 1498 KiB

Open AccessArticle

Identification of Athleticism and Sports Profiles Throughout Machine Learning Applied to Heart Rate Variability

by Tony Estrella and Lluis Capdevila

Sports 2025, 13(2), 30; https://doi.org/10.3390/sports13020030 - 22 Jan 2025

Viewed by 672

Abstract

Heart rate variability (HRV) is a non-invasive health and fitness indicator, and machine learning (ML) has emerged as a powerful tool for analysing large HRV datasets. This study aims to identify athletic characteristics using the HRV test and ML algorithms. Two models were [...] Read more.

Heart rate variability (HRV) is a non-invasive health and fitness indicator, and machine learning (ML) has emerged as a powerful tool for analysing large HRV datasets. This study aims to identify athletic characteristics using the HRV test and ML algorithms. Two models were developed: Model 1 (M1) classified athletes and non-athletes using 856 observations from high-performance athletes and 494 from non-athletes. Model 2 (M2) identified an individual soccer player within a team based on 105 observations from the player and 514 from other team members. Three ML algorithms were applied —Random Forest (RF), Extreme Gradient Boosting (XGBoost), and Support Vector Machine (SVM)— and SHAP values were used to interpret the results. In M1, the SVM algorithm achieved the highest performance (accuracy = 0.84, ROC AUC = 0.91), while in M2 Random Forest performed best (accuracy = 0.92, ROC AUC = 0.94). Based on these results, we propose an athleticism index and a soccer identification index derived from HRV data. The findings suggest that ML algorithms, such as SVM and RF, can effectively generate indices based on HRV for identifying individuals with athletic characteristics or distinguishing athletes with specific sports profiles. These insights underscore the importance of integrating HRV assessments systematically into training regimens for enhanced athletic evaluation. Full article

(This article belongs to the Special Issue Human Physiology in Exercise, Health and Sports Performance)

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18 pages, 2677 KiB

Open AccessArticle

Test–Retest Reliability and Concurrent Validity of Photoplethysmography Finger Sensor to Collect Measures of Heart Rate Variability

by Donald W. Rogers, Andreas T. Himariotis, Thomas J. Sherriff, Quentin J. Proulx, Megan T. Duong, Sabrina E. Noel and David J. Cornell

Sports 2025, 13(2), 29; https://doi.org/10.3390/sports13020029 - 22 Jan 2025

Viewed by 493

Abstract

The purpose of the current study was to determine the test–retest reliability and concurrent validity of a photoplethysmography (PPG) finger sensor when collecting heart rate variability (HRV) metrics in reference to electrocardiography (ECG) and heart rate monitor (HRM) devices. Five minutes of R-R [...] Read more.

The purpose of the current study was to determine the test–retest reliability and concurrent validity of a photoplethysmography (PPG) finger sensor when collecting heart rate variability (HRV) metrics in reference to electrocardiography (ECG) and heart rate monitor (HRM) devices. Five minutes of R-R interval data were collected from 45 participants (23 females; age: 23.13 ± 4.45 yrs; body mass index: 25.39 ± 4.13 kg/m²) in the supine and seated positions in testing sessions 48 h apart. Moderate-to-excellent test–retest reliability of the HRV data collected from the PPG sensor was identified (ICC_2,1 = 0.60–0.93). Additionally, similar standard errors of the mean, coefficient of variation, and minimal detectable change metrics were observed across all devices. Statistically significant (p < 0.05) differences were identified in the HRV data between the PPG sensor and ECG and HRM devices; however, these differences were interpreted as trivial-to-small (g = 0.00–0.59). Further, the PPG sensor tended to only overestimate HRV metrics by <0.5 ms and near perfect relationships (r = 0.91–1.00) and very large-to-near perfect agreement (CCC = 0.81–1.00) were identified between collection methods. The PPG sensor demonstrated adequate test–retest reliability and concurrent validity in both the supine and seated resting positions. Full article

(This article belongs to the Special Issue Human Physiology in Exercise, Health and Sports Performance)

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12 pages, 1049 KiB

Open AccessArticle

Technical, Tactical, and Time–Motion Match Profiles of the Forwards, Midfielders, and Defenders of a Men’s Football Serie A Team

by Rocco Perrotta, Alexandru Nicolae Ungureanu, Domenico Cherubini, Paolo Riccardo Brustio and Corrado Lupo

Sports 2025, 13(2), 28; https://doi.org/10.3390/sports13020028 - 21 Jan 2025

Viewed by 548

Abstract

The present study aimed to verify the (1) differences between players’ roles in relation to technical and tactical and time–motion indicators, and the (2) relationships between individual time–motion and technical and tactical indicators for each role in a men’s Italian football Serie A [...] Read more.

The present study aimed to verify the (1) differences between players’ roles in relation to technical and tactical and time–motion indicators, and the (2) relationships between individual time–motion and technical and tactical indicators for each role in a men’s Italian football Serie A team. A total of 227 performances were analyzed (28 players: 8 forwards, FWs; 11 midfielders, MDs; 9 defenders, DFs). Technical and tactical indicators, such as ball possession (played balls, successful passes, successful playing patterns, lost balls, ball possession time), offensive play (total and successful dribbles, crosses, assists), and shooting (total shots, shots on target) were obtained by means of Panini Digital (DigitalSoccer Project S.r.l). In addition, a time–motion analysis included the total distance, distances covered at intensities of 16.0–19.8 km/h, 19.8–25.2 km/h, and over 25.2 km/h, the average recovery time between metabolic power peaks, and burst occurrence, the latter of which was performed by means of a 18 Hz GPS device (GPexe Pro2 system tool) worn by the players. Results showed role-specific differences: MDs covered more distance, while DFs had better ball possession. MDs and DFs had more successful playing patterns, and MDs and FWs performed more dribbles and shots. Strong correlations (p < 0.01, ρ > 0.8) were found between bursts and assists for FWs, high-intensity running and ball possession for MDs, and distance, dribbling, and shots for DFs. These findings highlight the importance of individual and tailored training programs to optimize role-specific performance demands. Full article

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11 pages, 415 KiB

Open AccessArticle

Differences in Contractile Characteristics Among Various Muscle Groups in Youth Elite Female Team Handball Players Compared to a Control Group

by Milan Petronijević, Katarina Ohnjec and Milivoj Dopsaj

Sports 2025, 13(2), 27; https://doi.org/10.3390/sports13020027 - 21 Jan 2025

Viewed by 428

Abstract

Muscular strength and explosiveness are generally known as factors that affect physical performance. Physical ability modeling has a profound connection with long-term athlete development and talent identification. The purpose of the current study was to investigate differences in contractile characteristics (maximal isometric force [...] Read more.

Muscular strength and explosiveness are generally known as factors that affect physical performance. Physical ability modeling has a profound connection with long-term athlete development and talent identification. The purpose of the current study was to investigate differences in contractile characteristics (maximal isometric force and maximal rate of force development) among various muscle groups in youth elite female team handball players (n = 35, 16.6 ± 1.1 years) compared to a control group (n = 28, 16.7 ± 1.1 years). The following tests were performed: isometric non-dominant hand grip, isometric dominant hand grip, isometric deadlift, isometric standing leg extension, and isometric bilateral ankle extension. For each subject, the maximal isometric force and maximal rate of force development were derived from the isometric strength tests. The research analyzed a total of twenty-four variables, presented in both absolute and relative values. Statistical analysis revealed significant differences among all pairs of variables in the absolute values of maximal isometric force (Λ = 0.531, F = 10.07, p = 0.000) and maximal rate of force development (Λ = 0.692, F = 5.08, p = 0.001) between the two groups. The most significant difference was found in the grip of the dominant hand, where the impact of the difference was 43.6% and 37.0% for the absolute values of force and explosiveness. Conversely, no differences were observed between the pairs of variables representing the relative values across the two subject groups, except for the dominant hand grip relative force (p = 0.006). The results provide information about the contractile potentials of important muscle groups in the game of handball, which could help in adapting strength training according to the specifics of the strength and explosivity development of young female handball players. Full article

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Sports, Volume 13, Issue 2 (February 2025) – 11 articles

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