Sports Sciences Commons^™

Co-Creating An Intervention To Prevent Injuries In Police Force Recruits: A Concept Mapping Study Of Police Force Recruits, Police Force Staff, Health Professionals, And Research Experts, Myles Murphy, Andrea B. Mosler, Garth Allen, Alex Donaldson, Clare L. Ardern, Carolyn A. Emery, Martin Hägglund, Jonathan M. Hodgson, Joanne L. Kemp, Debra Langridge, Tiffany Mcalinden, Thomas Mirco, Sophia Nimphius, Simone Radavelli-Bagatini, Kiera Staley, Vanessa Sutton, Evert Verhagen, Andrea M. Bruder

Research outputs 2022 to 2026

Objective: Police force recruits have a high musculoskeletal injury burden, which results in a substantial economic burden and can lead to attrition. The objective of this study was to identify and prioritise the strategies perceived as important and feasible to reduce the prevalence, incidence, and burden of injury in police force recruits. Design: Mixed-methods concept mapping study. Methods: Forty-eight participants were recruited from four broad groups: police force recruits/officers; police force staff; health professionals; and research experts. Participants brainstormed statements in response to a prompt (“To prevent injury and/or reduce the impact of injury on law enforcement recruit training, I …

Effects Of Resisted Movement Training On Change-Of-Direction Speed In Recreationally Active And Trained Individuals: A Systematic Review With Network Meta-Analysis And Meta-Regression, Mingyang Zhang, Urs Granacher, Ruixiang Yan, Hallvard Nygaard Falch, Rodrigo Ramirez-Campillo, Kai Xu, Xing Zhang, Jinming Li, Shubo Xu, Yulin Luo, Duanying Li, Jian Sun

Research outputs 2022 to 2026

Background: The ability to change directions quickly is critical for performance and injury prevention in multidirectional sports, yet the influence of resisted movement training (R-MT) on change-of-direction (COD) speed remains uncertain. Therefore, we aimed to examine the effectiveness of various R-MT methods on COD speed in individuals ranging from recreational to international level and to determine the relationship between test angle and COD adaptations. Methods: We systematically searched PubMed/MEDLINE, Embase, Web of Science, SPORTDiscus, CINAHL, Scopus, and Google Scholar from inception to August 2025. Random-effects pairwise meta-analyses and a Bayesian network meta-analysis (NMA) synthesized effects of vertically resisted plyometric and …

The Impact Of Testing-Parameter Variability On Force Production In The Isometric Single-Leg Long-Lever Bridge: Implications For Training And Testing Rigor In Sporting Environments, Adam E. Sundh, Nicholas J. Ripley, A. J. Lamb, Conor J. Cantwell, Paul Comfort

Research outputs 2022 to 2026

Background: The aim of this study was to determine the impact of knee angle variability on force production outcomes during the single-leg isometric long-lever bridge, thus providing monitoring guidelines for testing rigor with direct implications for feasibility across a variety of high-performance sporting environments. Methods: Thirty men (age: 19.4 ± 1.3 years; height: 179.8 ± 6.3 cm; body mass: 80.4 ± 10.3 kg) and 14 women (age: 20.0 ± 1.3 years; height: 166.9 ± 7.2 cm; body mass: 64.4 ± 7.4 kg) all of whom were Division 3 athletes with no recent injury history volunteered to participate in the study. …

Sarcomerogenesis: Evidence, Context And Key Stimuli—Response To The Commentary By Power Et Al., Anthony J. Blazevich, Walter Herzog, João Pedro Nunes

Research outputs 2022 to 2026

No abstract provided.

Acute Effects Of Accentuated Eccentric Loading On Mean Concentric Velocity During Resistance Training: A Systematic Review And Meta-Analysis, Jiahao Yang, Tsuyoshi Nagatani, Paul Comfort, Kristina L. Kendall, G. Gregory Haff

Research outputs 2022 to 2026

Background: Accentuated eccentric loading (AEL) may acutely enhance the concentric (CON) barbell velocity after the additional eccentric (ECC) load is removed, however there are inconsistent results regarding the effectiveness of this practice within the scientific literature. Objective: The aims of the present study were to: (1) examine the acute effects of applying AEL, only on the first repetition of a set, on mean barbell velocity during the CON phase of the first 3 repetitions of the set and (2) investigate the influence of the magnitude of ECC load, loading differential and exercise selection on the acute effects of AEL. Methods: …

Do Flywheel Exercises Provide Eccentric-Overload Training?, Darjan Spudić, Kazunori Nosaka

Research outputs 2022 to 2026

Interests in eccentric resistance exercises have been increasing in both research and practice. However, implementing eccentric resistance exercise training is often challenging due to the mechanical limitations of traditional training equipment. To address this, flywheel (FW) devices emerged as a practical alternative. FW devices are commonly considered to provide eccentric-overload training, in which the load is greater in eccentric than concentric phase. However, this is not always the case. In this article, we summarize the mechanical and physiological factors influencing the effectiveness of FW devices in achieving eccentric overload. Then, we discuss a significant limitation of FW resistance exercise in …

Effects Of Lower Limb Joint Manipulation On Squat Strength And Ankle Range Of Motion: A Sham-Controlled Double-Blind Randomised Cross-Over Trial, Reneigh Morley-Hart, Barrett Losco, Alasdair R. Dempsey, G. Gregory Haff, Sasha L. Aspinall

Research outputs 2022 to 2026

Background: The back squat is a commonly prescribed exercise for developing lower body strength. The ability to squat can be affected by reduced ankle dorsiflexion range of motion (DF-ROM), leading to limited squat depth and dysfunctional compensatory movement patterns.

Objective: To investigate the effect of high-velocity low-amplitude lower limb manipulations on 1 repetition maximum (1RM) back squat strength, sagittal plane ankle kinematics during a squat, and active DF-ROM in individuals with asymptomatic deficits in DF-ROM.

Methods: Twenty-six enrolled; Twenty-four analysed resistance-trained participants with asymptomatic deficits in DF-ROM participated in this double-blind randomised sham-controlled cross-over trial. Interventions involved high-velocity low-amplitude joint …

Free-Fall Normalised Peak Braking Velocity For Countermovement Jump Monitoring, Karol Kruczek, André Rebelo, Jason Lake, Michał Nowak

Research outputs 2022 to 2026

Background: Peak braking velocity (PBV) during the countermovement jump (CMJ) is used to describe descent strategy, but its interpretation is affected by countermovement depth. This study introduced free-fall normalised peak braking velocity (PBVFF), a dimensionless index expressing PBV relative to the displacement-specific theoretical free-fall velocity limit, and evaluated its reliability, performance associations and ranking consequences. Methods: Seventy injury-free male academy footballers (18.7 ± 1.6 years) performed three maximal hands-on-hips CMJs on dual force plates. Using retrospective observational routine monitoring data, one representative testing day per athlete was analysed. Two PBVFF variants were examined: PBVFF normalised to countermovement depth (PBVFFCMD) and …

Eccentric Exercise: Muscle Damage To The New Normal, Kazunori Nosaka

Research outputs 2022 to 2026

No abstract provided.

Adding A Weight To Constrain The Trunk Increases Knee Joint Kinetics During Sidestep Cutting In Female Athletes, Daniel Kadlec, J. Jordan, Jacqueline Alderson, Sophia Nimphius

Research outputs 2022 to 2026

Sidestep cutting exposes the knee to high multiplanar loads that both challenge tissue capacity and provide an opportunity to develop resilience through progressive exposure. This study investigated task constraints applied at the trunk and preparatory step and changes in lower-body joint kinetics associated with ACL injury risk during sidestepping in female athletes. Twenty-one trained female athletes performed six sidestep conditions: pre-planned and unplanned sidesteps, each with and without trunk (holding ~ 5–7.5% body mass at chest level) and preparatory-step (ducking under an adjustable rope at eye height) constraints. Relative joint power at the hip, knee, and ankle was analysed using …

Effects Of A 12-Week Tai Chi And Qigong Training Program On Neuromuscular Function And Postural Stability In Elderly Men With Sarcopenia, Muthanna Harith Ekrayyem, Ali Fawzi Ahmed, Saif Rasheed Ghanim

Baltic Journal of Health and Physical Activity

Background: Sarcopenia is associated with progressive declines in neuromuscular function, balance, and increased systemic inflammation in older adults. This study investigated the effects of a 12-week Tai Chi and Qigong training program in elderly Iraqi men with sarcopenia. Materials and Methods: Thirty men aged 60–65 years with sarcopenia were randomly assigned to an intervention group (n = 15) or a control group (n = 15). Neuromuscular performance, postural stability, gait speed, electromyographic amplitude, IGF-1, and CRP-hs were assessed before and after the intervention. Results: The intervention group showed significant improvements in reaction time, electromyographic amplitude, postural stability, gait …

Rethinking Existing Extension Programming: A Foundation For Healthy Aging?, Nicholas J. Spokely, Sloane A. Montgomery, Kelsey J. Weitzel, Kristin A. Miller, Marta Novaes Oliveira, Stephen D. Ball, Breanne S. Baker

Journal of Extension

Muscle declines are becoming more prevalent in younger adults, driving the need for accessible exercise programs. The Stay Strong, Stay Healthy (SSSH) Extension program was developed for adults 60 years old or older, but for this study, we enrolled 135 participants aged less than 60 years old in rural and urban counties to assess if it could improve their muscle performance. We analyzed data with time and group comparisons using paired t-tests and 2 × 2 repeated measures ANOVAs. Younger adults significantly improved muscle performance after SSSH, and the results were similar between rural and urban counties. This study …

Core Stability Training And Sports Performance: A Bibliometric Mapping (2000–2025), Mimi Guo, Muhamad Hafiz Bin Ismail, Diyana Z. Abdul Ghani, Qi Liang, Yifei Gao

Baltic Journal of Health and Physical Activity

Background: Core stability training has become an important topic in sports science because of its proposed role in athletic performance enhancement, injury prevention, and neuromuscular control. This study aimed to map the knowledge structure, research trends, and collaboration patterns in this field. Materials and Methods: A bibliometric analysis was conducted using the Web of Science Core Collection. Articles and reviews published between 2000 and 2025 were screened according to predefined eligibility criteria. A total of 559 publications were included and analyzed using Bibliometrix and Biblioshiny. Results: Scientific output increased markedly over time, particularly after 2020. The USA and China were …

Interrater Reliability Of Software Optimized Movement Assessment With Traditional Methods And Video-Based Functional Movement Screen Scoring And Compensatory Movement Identification, Joshua Paul Verdillo, Nj Ermina, Tanya Mariel Capilla, Russel James Balane, Evriel Prince Apura, Daryl Reymon Apla-On, Ressyl Love Salvador

Philippine Journal of Physical Therapy

Introduction: The Functional Movement Screen (FMS) is a seven-part movement assessment used to identify injury risks caused by faulty biomechanics. There are three barriers in traditional FMS assessments that could affect the tool’s validity: the subjectivity of human scores that could cause bias, the need for in-person evaluations which limit access for remote patients, and the requirement of specialized training to use the tool, which makes it less accessible. This study investigates the effectiveness of SOMA, an AI-based web application that uses the MediaPipe framework to automatically assess (FMS) performances.

Methods: This study employs a quantitative, cross-sectional, comparative design to …

Effects Of Eight-Week High Interval Training On The Distance Covered During Small-Sided Games Versus League Match In Youth Soccer Players, Dorota Lewandowska, Zbigniew Jastrzebski

Baltic Journal of Health and Physical Activity

Background: The aim of the study was to demonstrate the effectiveness of an 8-week high-intensity interval training (HIIT) program on the distance covered by young soccer players during small-sided games (SSG) and a league match. Materials and Methods: The study involved 39 players aged 17–18 years old, divided into two groups, each performing SSG on a pitch with a surface of 90 m² per player (G-90, n = 19) and 180 m² per player (G-180, n = 20). Players (5 × 5) in both groups completed four games, once a week on Tuesdays. Each game lasted 5 minutes with a …

Effects Of Hydrogen-Infused Water On Endurance Performance, Body Hydration Biomarkers, And Health-Related Quality Of Life In Collegiate Athletes (Hydro2eau): A Randomized-Controlled Clinical Trial, Jovan Kuzmanovic, Nikola Todorovic, Marijana Ranisavljev, David Nedeljkovic, Sergej M. Ostojic

Baltic Journal of Health and Physical Activity

Background: Hydrogen-infused water (HIW) has attracted considerable interest over the past two decades due to its potential health benefits. However, its effects on exercise performance and hydration biomarkers remain inadequately explored, particularly in physically active populations such as collegiate athletes. This study aimed to investigate the impact of medium-term HIW supplementation on running performance, hydration biomarkers, and health-related quality of life in collegiate athletes. Methods: A randomized, double-blind, placebo-controlled, crossover trial was conducted with twelve collegiate athletes (age: 25.1 ± 3.5 years, six female). Participants consumed 660 mL daily of either HIW (300 µmol/L dihydrogen) or control water (0 µmol/L …

Collective High-Intensity Physical Load And Team Performance In The Fifa U-20 World Cup Chile: Match-By-Match Analysis Of Finalists, Khalid El Mouahid, Salim Khairi, Paweł Chmura, Amine Arfaoui

Baltic Journal of Health and Physical Activity

Background: This study aimed to compare the physical and technical-tactical performance profiles of the two finalist teams (Argentina and Morocco) at the FIFA U-20 World Cup 2025 and to examine the relationships between individual physical loads and collective match performance. Materials and Methods: An observational comparative design was applied using official FIFA match reports. Seven matches per team were analyzed. Physical variables included total distance, distances covered in speed zones (Z3–Z5), high-speed running, sprint distance, and maximal speed, while technical-tactical variables described offensive, defensive, and collective behaviors. Between-team comparisons and correlation analyses were conducted using appropriate parametric and non-parametric procedures. …

Benign Jaw Bone Lesions In Athletes Exposed To Craniofacial Trauma: Surgical Treatment And Bone Regeneration Using Biphasic Calcium Sulfate, Damian M. Dudek, Agata Chwarścianek, Izabela Pabin, Łukasz Jaworski, Oliwia Warmusz, Grzegorz Wyrobiec, Ewa Kłodzińska

Baltic Journal of Health and Physical Activity

Benign cystic and tumor lesions of the jaw bones represent relatively frequent pathological conditions encountered in oral and maxillofacial surgery. Although these lesions are often asymptomatic and slow-growing, they may lead to progressive weakening of bone structure. In individuals exposed to repetitive mechanical forces, such as athletes participating in contact sports, the presence of such lesions may significantly increase the risk of pathological fractures of the facial skeleton. The aim of the present study was to present a clinical case series of a benign jaw bone lesion treated surgically using a biphasic calcium sulfate biomaterial and to discuss the potential …

Selected Determinants Of The Health Quality Of The Diet Of Women Practicing Aerobic Sports, Maria Gacek, Paulina Mazur-Kurach

Baltic Journal of Health and Physical Activity

Background: In the context of the importance of nutrition for health and exercise capacity, this study was conducted to assess selected determinants of the health quality of the diet of female athletes training in one of the gymnastics disciplines—aerobic gymnastics. Materials and methods: The study was conducted among 112 women aged 19 to 30 using several research tools, including the Beliefs and Eating Habits Questionnaire KomPAN, the Generalised Self-Efficacy Scale (GSES), and the Satisfaction with Life Scale (SWLS). Statistical analyses were performed using Spearman's correlation coefficients, at a significance level of α = 0.05. Results: The median score for the …

Exploring The Contextual Relationships Between Match Day Load And Recovery Biomarkers In Professional Soccer Players, Carina Hanson-Evans, Ryland Morgans, Rafael Oliveira, Jule Scholten, Roi Gil, Ben Ryan, Jon Oliver, Piotr Żmijewski, Michael G. Hughes

Baltic Journal of Health and Physical Activity

Background: This study examined the relationship between match-day (MD) load and contextual factors on recovery biomarkers in professional soccer players across the 2024/2025 competitive season. Materials and Methods: Twenty-six male professional soccer players provided blood samples following 38 competitive matches. High-sensitivity C-Reactive Protein (hs-CRP), Free-Oxygen Radicals Test (FORT), Free-Oxygen Radicals Defence Test (FORD) and Oxidative Stress Index (OSI) were analyzed. Physical MD load was measured via a Global Positioning System (GPS). Results: Differences in High-Load vs Low-Load matches did not significantly influence post-match levels of hs-CRP, FORD, FORT or OSI. Increased high-intensity running and elevated inflammation, with non-significant moderate-to-large effects …