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Sports, Volume 13, Issue 2

2025 February - 34 articles

Cover Story: 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 HRV and ML algorithms. Two models were developed: Model 1 (M1) differentiated athletes from non-athletes; Model 2 (M2) aimed to identify a specific soccer player within a team. We proposed an athleticism index and a soccer identification index based on the performance of these algorithms. According to the results, these methods can effectively generate indices based on HRV to identify people with athletic characteristics or athletes with specific sports profiles. These findings suggest that HRV-based tests can provide valuable insights when integrated rigorously and systematically into daily training routines. View this paper
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Articles (34)

  • Article
  • Open Access
2,093 Views
13 Pages

Comparative Effects of Resistance Training Modalities on Mental Health and Quality of Life in Individuals with Spinal Cord Injury

  • Lucas Vieira Santos,
  • Karla Raphaela da Silva Ramos Freitas,
  • Eveline Torres Pereira,
  • Luciano Bernardes Leite,
  • Pedro Forte,
  • Claudia Eliza Patrocínio de Oliveira and
  • Osvaldo Costa Moreira

18 February 2025

Background: Anxiety and depression are prevalent after spinal cord injury, impairing social participation and quality of life. Objective: This study aimed to investigate the effects of traditional resistance training (TRT), flywheel resistance traini...

  • Article
  • Open Access
1 Citations
1,738 Views
14 Pages

Study of the Load During Official Competition in Professional Women’s Basketball—A Case Study

  • Pablo López-Sierra,
  • Sergio L. Jiménez-Sáiz,
  • Javier García-Rubio,
  • María Isabel Piñar and
  • Sergio J. Ibáñez

17 February 2025

Background: Basketball matches involve numerous conditioning factors which, when put together, make for a complex prediction event. However, unraveling all these elements in different studies allows the control of certain conditioning factors of the...

  • Article
  • Open Access
969 Views
11 Pages

17 February 2025

This study investigates the relationship between total running experience, defined as cumulative years of running multiplied by weekly mileage, and variability in lower leg joint kinematics during treadmill running. Twenty-seven male athletes partici...

  • Article
  • Open Access
3 Citations
2,987 Views
19 Pages

Are Perceived Effort Scales (OMNI-RES) Appropriate for Defining and Controlling Strength Training Intensity?

  • José Luis Maté-Muñoz,
  • Luis Maicas-Pérez,
  • Iñigo Aparicio-García,
  • Juan Hernández-Lougedo,
  • Luis De Sousa-De Sousa,
  • Mónica Hontoria-Galán,
  • Francisco Hermosilla-Perona,
  • Manuel Barba-Ruiz,
  • Pablo García-Fernández and
  • Juan Ramón Heredia-Elvar

17 February 2025

Background: One of the most significant challenges for exercise professionals in designing strength training programs is determining the intensity or effort level of each set performed. One of the most studied methodologies has been the use of Rate o...

  • Article
  • Open Access
1,640 Views
10 Pages

The Influence of Game Intervals on Physical Performance Demands in Elite Futsal: Insights from Congested Periods

  • Augusto Pereira,
  • João Nuno Ribeiro,
  • Pedro E. Alcaraz,
  • Rubén Herrero Carrasco,
  • Bruno Travassos,
  • Tomás T. Freitas and
  • Konstantinos Spyrou

14 February 2025

The aims of this study were to analyze (1) the external match demands during a congested period (CP) (i.e., three games in eight days) and (2) the differences among games with two- or three-day intervals in professional futsal players. Eleven elite m...

  • Review
  • Open Access
5 Citations
3,905 Views
16 Pages

13 February 2025

Background: Variability in running mechanics, termed running variability, reflects the adaptability of the locomotor system to dynamic environments. Due to inconsistent findings in the literature, there is a research gap in understanding its role in...

  • Article
  • Open Access
2 Citations
1,741 Views
12 Pages

Analysis of Magnitude and Direction of Body Composition Asymmetries in Male Brazilian Jiu-Jitsu Athletes: Pilot Study

  • Alex Ojeda-Aravena,
  • Rafael L. Kons,
  • Jairo Azócar-Gallardo,
  • Xurxo Dopico-Calvo,
  • Aida Fernández,
  • Marcelo Tuesta-Roa,
  • Mauricio Cresp-Barria,
  • Jorge Olivares-Arancibia and
  • Eduardo Báez-San Martín

12 February 2025

In order to optimize body composition and its components, it is of interest to analyze inter-limb asymmetries in athletes of popular combat sports such as Brazilian Jiu-Jitsu (BJJ). This study aimed to assess the magnitude and direction of body compo...

  • Article
  • Open Access
1 Citations
3,361 Views
15 Pages

11 February 2025

Relative Age Effects (RAEs) are a phenomenon in athletics related to an over-representation of individuals born closer to an arbitrary cutoff date. Such effects have been shown in many different countries, levels of play, and contexts, although they...

  • Review
  • Open Access
3 Citations
7,695 Views
30 Pages

11 February 2025

Lower extremity misalignments increase the risk of chronic overload and acute injuries during sports and daily activities. Medial positioning of the knee and foot in the frontal plane is one of the key biomechanical risk factors associated with lower...

  • Article
  • Open Access
3 Citations
3,586 Views
12 Pages

Correlations Between Body Composition and Aerobic Fitness in Elite Female Youth Water Polo Players

  • Mark Zamodics,
  • Mate Babity,
  • Gusztav Schay,
  • Tamas Leel-Ossy,
  • Agnes Bucsko-Varga,
  • Panka Kulcsar,
  • Regina Benko,
  • Dora Boroncsok,
  • Alexandra Fabian and
  • Orsolya Kiss
  • + 9 authors

10 February 2025

Body composition and cardiopulmonary exercise testing (CPET) are vital for optimizing sports performance, but the correlations between them are still underexplored. Our study aimed to investigate the relationships between body composition and specifi...

  • Article
  • Open Access
1 Citations
8,516 Views
17 Pages

The Sleep, Recovery, and Nutrition Characteristics of Elite Adolescent Athletes

  • Lorcán Mason,
  • James Connolly,
  • Lydia E. Devenney,
  • Karl Lacey,
  • Jim O’Donovan,
  • Maria Faulkner and
  • Rónán Doherty

10 February 2025

Background: Elite sport participation creates a significant burden on adolescent athletes due to demanding training schedules, high training intensities, and the complexity of puberty. As such, an athletes’ ability to effectively balance stress...

  • Article
  • Open Access
1 Citations
2,036 Views
11 Pages

Validity and Inter-Device Reliability of the OTBeat BurnTM Monitor to Estimate Heart Rate During Exercise

  • Matteo F. de Leon,
  • Clayton L. Camic,
  • Matthew J. Herring and
  • Christopher M. Hill

8 February 2025

The purpose of this study was to determine the accuracy and inter-device reliability of the OTBeat BurnTM heart rate monitor during an incremental test to exhaustion on a cycle ergometer. Twenty males (mean ± SD age = 21.1 ± 1.9 years)...

  • Article
  • Open Access
1 Citations
1,452 Views
14 Pages

Objective Evaluation of Out-of-Competition Volume of Action in Wheelchair Basketball Classification

  • Yuki Shimoyama,
  • Shintaro Kasai,
  • Hiroaki Wagatsuma,
  • Tatsuru Ibusuki,
  • Takumi Tsukada and
  • Kaori Tachibana

8 February 2025

In wheelchair basketball, classes are based on competition observations. Since 2021, out-of-competition testing has been implemented; however, research remains limited. This study aimed to determine whether the quantified volume of action (VOA) can b...

  • Article
  • Open Access
3,386 Views
19 Pages

Effects of Speed, Orthosis, and Load on Calf Muscle Electromyography Signal During Treadmill Walking

  • Yasha Nahreini,
  • Monika Herten,
  • Jens-Peter Stahl,
  • Christoph Schönle,
  • Marcel Dudda and
  • Thomas Jöllenbeck

8 February 2025

Background: Achilles tendon rupture rehabilitation protocols often emphasize two key factors, namely plantar flexion and load restriction during the early recovery stages. However, we hypothesize that variations in walking speed also play a significa...

  • Review
  • Open Access
7 Citations
11,128 Views
32 Pages

8 February 2025

Musculoskeletal injury (MSI) risk screening has gained significant attention in rehabilitation, sports, and fitness due to its ability to predict injuries and guide preventive interventions. This review analyzes the Functional Movement Screen (FMS) a...

  • Article
  • Open Access
1 Citations
2,364 Views
14 Pages

Predicting Heart Rate Slow Component Dynamics: A Model Across Exercise Intensities, Age, and Sex

  • Massimo Teso,
  • Alessandro L. Colosio,
  • Maura Loi,
  • Jan Boone and
  • Silvia Pogliaghi

7 February 2025

The heart rate slow component (scHR) is an intensity-dependent HR increment that emerges during constant exercises, partially dissociated from metabolism (V˙O2). The scHR has been observed during constant-workload exercise in young and older adu...

  • Article
  • Open Access
3 Citations
2,023 Views
14 Pages

Reasons for the Practice, Abandonment, and Non-Practice of Extracurricular Physical Activity and Sport Among Primary and Secondary School Students in Cantabria: What Can We Do About It?

  • Martín Barcala-Furelos,
  • Iván González-Gutiérrez,
  • Josune Rodríguez-Negro,
  • Marcos Mecías-Calvo and
  • Rubén Navarro-Patón

7 February 2025

(1) Background: Physical education at school is not able to meet the need for physical activity and sport (PA and S) established by international organizations, making it necessary to implement its practice outside school hours. This study aimed to f...

  • Article
  • Open Access
1 Citations
1,951 Views
16 Pages

Sports-Related Injuries in Deaf Competitive Squad Athletes—Results of a Retrospective Self-Assessment

  • Bastian Mester,
  • Kim Lennartz,
  • Julia Kristin,
  • Heinz-Lothar Meyer,
  • Christina Polan,
  • Monika Herten,
  • Marcel Dudda and
  • Manuel Burggraf

6 February 2025

Background: Deaf squad athletes regularly participate in national/international competitions and most prepare for competitions in clubs with hearing athletes. Hearing loss is associated with difficulties in balance control which may impair functional...

  • Article
  • Open Access
1,661 Views
12 Pages

Sex-Based Effects on Muscle Oxygenation During Repeated Maximal Intermittent Handgrip Exercise

  • Modesto A. Lebron,
  • Justine M. Starling-Smith,
  • Ethan C. Hill,
  • Jeffrey R. Stout and
  • David H. Fukuda

6 February 2025

Background: This investigation aimed to examine sex-based differences in deoxy[heme] (HHb), tissue saturation (StO2), and force-deoxygenation ratio (FD) of the forearm flexor muscles during a maximal-effort intermittent fatiguing handgrip protocol. M...

  • Article
  • Open Access
3 Citations
2,071 Views
12 Pages

An Analysis of Young Women University Students’s Physical Activity Levels

  • Gema Díaz-Quesada,
  • Juan Francisco Jiménez-Jiménez,
  • Rosario Padial-Ruz and
  • Gema Torres-Luque

5 February 2025

The physical activity (PA) level in women, it seems, tends to decrease in adulthood. The aims of the study were: (i) to evaluate the degree of compliance with PA recommendations in young women university students and (ii) to measure steps and the lev...

  • Systematic Review
  • Open Access
2 Citations
1,894 Views
22 Pages

A Systematic Review and Meta-Analysis on Aerobic Fitness Dynamics in Post-COVID-19 Athletes: Implications in the Return-to-Play Performance

  • Lucas Rafael Lopes,
  • Rui Medeiros,
  • Valéria Tavares,
  • Francisca Dias,
  • Marcus Vinícius Galvão Amaral,
  • Rodrigo Araújo Goes,
  • João Antonio Matheus Guimarães and
  • Jamila Alessandra Perini

5 February 2025

Maximal oxygen uptake (V.O2max) assesses athletic performance; however, its values are inconsistent in post-COVID-19 athletes. This study aimed to analyze the dynamics of V.O2max in post-COVID-19 athletes. Observational studies were identified by scr...

  • Review
  • Open Access
9 Citations
6,998 Views
19 Pages

Injury Prevention Strategies in Female Football Players: Addressing Sex-Specific Risks

  • George John,
  • Ameen AlNadwi,
  • Tiffany Georges Abi Antoun and
  • Ildus I. Ahmetov

4 February 2025

There has been rapid growth in women’s football worldwide; however, research on injury prevention strategies and physiological considerations specific to female athletes remains insufficient. Women’s football has experienced an increase i...

  • Review
  • Open Access
12 Citations
11,547 Views
20 Pages

The Shape of Success: A Scoping Review of Somatotype in Modern Elite Athletes Across Various Sports

  • Ximena Martínez-Mireles,
  • Edna Judith Nava-González,
  • Manuel López-Cabanillas Lomelí,
  • Debbie Samantha Puente-Hernández,
  • Miriam Gutiérrez-López,
  • José Omar Lagunes-Carrasco,
  • Ricardo López-García and
  • Erik Ramírez

4 February 2025

This scoping review aimed to determine the somatotype of modern elite athletes across various sports. The literature search followed the PRISMA guidelines for scoping reviews. Four databases were consulted, PubMed, Scopus, Web of Science, and Clariva...

  • Article
  • Open Access
2 Citations
1,969 Views
13 Pages

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

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

3 February 2025

(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 Scal...

  • Article
  • Open Access
4 Citations
7,745 Views
10 Pages

29 January 2025

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 pa...

  • Article
  • Open Access
1,660 Views
16 Pages

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

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

28 January 2025

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 parti...

  • Article
  • Open Access
2,836 Views
12 Pages

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

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

24 January 2025

(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 wi...

  • Article
  • Open Access
1 Citations
5,009 Views
17 Pages

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

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

24 January 2025

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 ident...

  • Article
  • Open Access
2,368 Views
21 Pages

23 January 2025

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 o...

  • Article
  • Open Access
1 Citations
4,512 Views
10 Pages

23 January 2025

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 ±...

  • Article
  • Open Access
4 Citations
4,985 Views
16 Pages

22 January 2025

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 alg...

  • Article
  • Open Access
2 Citations
4,792 Views
18 Pages

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

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

22 January 2025

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) a...

  • Article
  • Open Access
3 Citations
3,627 Views
12 Pages

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

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

21 January 2025

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 indic...

  • Article
  • Open Access
3 Citations
1,423 Views
11 Pages

21 January 2025

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 wa...

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Sports - ISSN 2075-4663