Sports Sciences Commons^™

The Effect Of Weight Training With Blood Flow Restriction On Muscle Strength Development In Mma, Tomáš Kozák, Marek Kokinda, Pavel Ružbarský

Baltic Journal of Health and Physical Activity

Background: This study aimed to elucidate the effect of weight training with blood flow restriction (BFR) on explosive power and isokinetic strength in combat athletes. Materials and methods: The sample included 12 male MMA fighters divided into a control (19.50±0.50 years) and an experimental (18.00±1.00 years) group. Participants trained twice weekly for 8 weeks, with BFR in the experimental group. Explosive power was assessed using following tests by Optogait: countermovement push-up, kneeling countermovement push-up and kneeling squat push-up for upper limbs and countermovement jump, countermovement jump with free arms and squat jump for lower limbs. Isokinetic strength was measured by …

Neuromuscular Responses During Vigorous Intensity Heart Rate-Clamp Cycling Exercise, Clara J. Mitchinson, Pasquale J. Succi, Brian Benitez, Djadmann Gustave, Minyoung Kwak, Erik Snell, Haley C. Bergstrom

Journal for Sports Neuroscience

Introduction: Electromyography (EMG) and mechanomyography (MMG) provide non-invasive assessments of neuromuscular function and fatigue during dynamic exercise. This study examined neuromuscular fatigue and cycling performance through changes in power output (PO), total work (TW), EMG and MMG, amplitude (AMP) and mean power frequency (MPF) during three, heart rate (HR)-Clamp trials in the vigorous range (77-95% HR_max). Methods: Ten men (mean±SD, 25.9±5.0yr, 74.9±15.0kg, HR_max=178±12b×min^-1) performed a cycle ergometer graded exercise test, followed by three separate HR-Clamp trials at 77%HR_max (HR_L, time to exhaustion [T_Lim]=58.5±4.6 min, range=45.3-60.0min), 86%HR_max (HR_{M …}

Granular Phenotyping Of Neuromuscular And Cortical Adaptation In Elite Judo Athletes: A Three-Group Experimental Analysis Using Eeg And Emg Markers, Magdalena Prończuk, Dariusz Tadeusz Skalski, Wirginia Likus, Łukasz Jaworski, Adam Maszczyk, Kinga Łosińska

Baltic Journal of Health and Physical Activity

Background: Inter-individual variability in neuromuscular and cortical adaptation presents a significant challenge for the personalization of neurofeedback protocols in elite sports, particularly in judo. Objective: This study aimed to identify distinct adaptation phenotypes in elite Polish judo athletes by integrating electrophysiological and performance-based measures following an EEG biofeedback intervention. Materials and methods: Twenty-four male athletes from the Polish national judo team completed a 15-session EEG biofeedback protocol targeting frontal alpha asymmetry. Post-intervention assessments included surface EMG amplitude (RMS), median frequency (MF), percentage EMG change, composite EEG indices (EEG_SUM), and normalized lower-limb strength. A composite Global Adaptation Index (GAI) was used …

Evolution Lower Limb Functional Asymmetry In Women's 400 M Hurdles From 1978-2022, Janusz Iskra, Wojciech Paśko, Paweł Gwiazdoń, Magdalena Chanas, Krzysztof Przednowek

Baltic Journal of Health and Physical Activity

Background: Functional asymmetry of the lower limbs in the technique of clearing 10 hurdles in the 400 m hurdles event was the subject of the study. Materials and methods: This study investigates the patterns of hurdle clearance, distinguishing between left and right lead legs by 196 female hurdlers competing in major championship events (including Olympic Games, World Championships, European Championships) from 1978 to 2022. The hurdlers were categorized into three groups based on competition periods: Group A (1978–2000), Group B (2001–2011), and Group C (2012–2022). The share of the left lead leg (assumed by most authors to be the lead …

Intramuscular Nad⁺ Therapy And Neuroenergetic Symptom Modulation: An Exploratory Retrospective Human Pilot Study, Zachary J. Dickey Do, Kirtan Patel Bs, Randy Aldret Edd, Cscs, Atc, Navneet Sharma Md, Glenn Goodwin Do

Journal for Sports Neuroscience

Abstract

Background: Nicotinamide adenine dinucleotide (NAD⁺) is a central regulator of neuronal energy metabolism, mitochondrial function, and axonal integrity. Following mild traumatic brain injury (mTBI) and repetitive subconcussive exposure, neurons undergo a neurometabolic crisis characterized by impaired oxidative phosphorylation, increased ATP demand, and depletion of intracellular NAD⁺ pools. Pre clinical models demonstrate that NAD⁺ depletion contributes to central energy dysregulation, cognitive dysfunction, and axonal and neuronal degeneration through disruption of NAD⁺-dependent pathways including SIRT1-mediated mitochondrial resilience, PARP1-driven NAD⁺ consumption, and SARM1-associated axonal breakdown. Despite growing preclinical evidence supporting NAD⁺based neuroprotection, human clinical data remains absent.

Methods: A real-world clinical pilot …

An Exploratory Study: The Presence Of Imposter Syndrome In New Graduate Allied Health Professionals And Its Relationship To Location Of Practice, Samantha J. Barber, Carol A. Flavell Dr, Moira Smith Dr

Internet Journal of Allied Health Sciences and Practice

Purpose: Imposter syndrome (IS) explores the feelings of fraudulence within personal and professional settings. Commonly IS results in impaired self-confidence, and self-perceptions of one’s own abilities, their mental health, and places them at a higher risk of burnout. Imposterism is linked to transitionary periods, such as being newly graduated, and while IS addressed amongst the medical community [doctors and nurses], there is a gap in literature relating to IS amongst allied health professionals (AHPs). Additionally, there is no known literature in which IS presence or severity is explored in relation to an individual’s geographic location. The aim of this study …

Perceptions Of Shared Decision-Making And Interprofessional Education At National Collegiate Athletic Association Institutions, Shelene Thomas, Rebecca Downey, Kaylyn Mcanally Star, Erin Choice, Anthony P. Breitbach

Internet Journal of Allied Health Sciences and Practice

Purpose: When a shared decision-making design is employed in the return to sport (RTS) Continuum, the athletes’ outcome improves. Yet, many professional programs (i.e., athletic training and medicine) integrate interprofessional education into curricula differently or not at all. Therefore, there may be a mismatch between theory, curricula, and practice implementation. This discrepancy could impact care team operations and RTS outcomes. The purpose of this study was to assess perceptions of shared decision-making practices, communication strategies, and perceived barriers among interprofessional RTS care team members in NCAA intercollegiate athletics.

Methods: A mixed-methods, cross-sectional study including anonymous, web-based survey responses from 253 …

Influence Of Intended Slow And Fast Eccentric Back Squat Velocity On Subsequent Countermovement Jump Performance, Artemis Zarkadoula, Themistoklis Tsatalas, Anthony D. Kay, Anthony J. Blazevich, Christos Kokkotis, Spyridon Plakias, Brett Anthony Baxter, Alex J. Van Enis, Giannis Giakas, Minas A. Mina

Research outputs 2022 to 2026

Background: The back squat is a key strength and conditioning exercise used to develop lower-limb strength and power, yet little is known about how movement velocity influences its acute performance-enhancing effects, such as improvements in countermovement jump height and power. The present study examined the acute effects of slow (vslow) versus fast (vfast) eccentric-phase velocity during back squats performed withmaximal concentric velocity on subsequent countermovement jump (CMJ) performance, using a randomized, crossover design. Methods: Fourteen male subjects (age = 22.9 ± 1.9 years; height = 1.8 ± 0.1 m; mass = 76.4 ± 8.3 kg) visited the laboratory on two …

Exercise Therapy For Mood Disorders In Retiring/Former Athletes, Christian Antos

Dissertations

This dissertation examined the potential integration of exercise therapy and psychotherapy as a treatment approach for mood-related difficulties experienced by former elite athletes during the transition out of competitive sport. Retirement from athletics is often associated with significant biopsychosocial challenges, including disruptions in identity, healthy routines, social support, and emotional well-being. Existing literature suggests that exercise may serve as an effective adjunctive intervention for improving mood and overall psychological functioning, though limited research has explored its application among retiring athletes within psychotherapeutic contexts. This literature review synthesized current research related to athletic retirement, neurobiological mechanisms associated with physical activity, and …

The Impact Of A Single Session Of Sprint Interval Training (Sit) On Pain Pressure Threshold (Ppt) In Healthy Adults, Francesco Pacenza, Gary Brickley, Umberto Crainich, Francesco Bettariga, Anthony Turner, Luca Maestroni

Research outputs 2022 to 2026

Different forms of aerobic exercise lead to Exercise-Induced Hypoalgesia (EIH). The aim of this study was to investigate the acute effect of a single session of Sprint Interval Training (SIT) on EIH. A total of 44 recreationally active young adults participated in a single SIT session on a cycle ergometer, consisting of a 2 min warm-up, 3 × 20 s “all-out” cycling bouts interspersed with 2 min of active recovery, and a 3 min cool-down. Pain Pressure Threshold (PPT) measurements were taken on the quadriceps (working muscle) and thenar eminence (resting muscle) before and after the session. Additionally, average power …

Addressing Mental Health Issues And The Effectiveness Of Cognitive Behavioral Therapy And Mindfulness-Based Interventions Among Athletes, Shelby Jones-Stachnik

Dissertations

This literature review identifies mental health concerns among competitive athletes and evaluates psychological interventions to address these challenges. Specifically, the review explores the mental health concerns experienced by athletes engaged in high-level sport. It examines whether cognitive behavioral therapy and mindfulness-based interventions are effective approaches for improving psychological outcomes in this population. A systematic review of peer-reviewed research was conducted, and findings were synthesized to evaluate the effectiveness of cognitive behavioral therapy and mindfulness-based interventions. The review included randomized controlled trials, quasi-experimental studies, and meta-analyses examining psychological interventions in athletic populations. Findings across the literature indicate that both cognitive behavioral …

Body Mass-Normalized Handgrip Strength As A Better Indicator Of General Health Than Absolute Values In Middle-Aged Women, Ricardo M. Lima, Trezise, Sally Poppitt, Amanda Devine, Anthony J. Blazevich

Research outputs 2022 to 2026

Objectives: To examine the association between HGS and physical function, quality of life (QoL), and cardiometabolic risk markers in midlife women, and verify potential discrepancies between absolute and relative HGS on these relationships. Study design: This cross-sectional study enrolled 83 participants (50.7±5.3y) who completed handgrip (hydraulic dynamometer), knee extensor and plantar flexor (isokinetic dynamometry) strength tests, and body composition evaluations (DXA). A variety of physical function tests, QoL (SF-36) and cardiometabolic blood markers were also measured. Results: Participants below the cutoff for HGS/body mass (0.34) did not differ in height but were significantly (P<0.01) heavier (80.8±12.8 vs. 68.6±11.4 kg), had higher BMI (30.0±4.2 vs. 25.4±4.0 kg/m²) and body fat (39.9±4.4 …

Exploring The Fidelity Of Resistance Training Interventions In Regional, Rural, And Remote Cancer Care: A Systematic Scoping Review, Christopher W. Rowe, Nicolas H. Hart, Julia Carlino, James Murray

Research outputs 2022 to 2026

Resistance-based exercise interventions are an integral part of supportive cancer care, though their high quality and high-fidelity implementation with people with cancer living in non-metropolitan locations is challenging. This systematic scoping review aimed to identify how exercise prescription principles and measures of fidelity are reported in resistance-based exercise interventions delivered to people with cancer living in regional, rural and remote areas. A systematic scoping review was conducted in accordance with the PRISMA-ScR guidelines. Five electronic databases were searched (MEDLINE/PubMed, Embase, CINAHL, SCOPUS and SportDiscus) for peer-reviewed studies published in English, that delivered a resistance-based exercise intervention to adult cancer survivors …

Multi-Sensory Information And Simulator Immersion: Impact On Decision-Making Performance, Presence, And Cognitive Load, Zachariah G. Hoyne, Khaya Morris-Binelli, Sean Müller, Benjamin Piggott, Paola Chivers, Evan Dekker

Research outputs 2022 to 2026

Immersive technologies such as 360-degree video virtual reality (360VR) provide unique opportunities to simulate representative environments to investigate decision-making in a safe and cost-effective manner. Inclusion of multi-sensory visual, contextual, and auditory information is important to enhance simulator psychological fidelity. Yet, the influence of increased sensory information on decision-making, presence, and cognitive load in 360VR compared to less immersive two-dimensional video simulators is unknown. This study investigated multi-sensory information, presence, and cognitive load across immersion conditions (360VR and two-dimensional video) in an exemplar sport-specific decision-making task. Fifteen higher-skilled and 15 lesser-skilled Australian Rules Football players completed a decision-making task which …

A Scoping Review Of Force Plates In Female Soccer: The Utility, Existing Practice And Identification Of Knowledge Gaps, Jack T. Fahey, Francisco Javier Robles-Palazón, Paul Comfort, Nichoals Ripley

Research outputs 2022 to 2026

Female soccer has grown exponentially with increasing funding, participation and competition. Force plates enable high resolution force-time assessment using isometric and dynamic tasks for acute or longitudinal monitoring, and profiling performance and injury risk. However, more research has been conducted in male soccer players compared to females with the utility of force plates in female soccer yet to be reviewed. The purpose of this scoping review is to review existing research using force plates in female soccer describing the utility of force plates, methods used, reported metrics and to identify gaps in our current understanding. A literature search was conducted …

Beyond Weight Loss: Effects Of Trx Suspension Training Combined With Caloric Restriction On Thyroid Function And Mental Well-Being In Obese Hypothyroid Women, Siavash Naddafha, Christopher B. Taber

Research outputs 2022 to 2026

Background: The rate of metabolism decreases in hypothyroid patients; hypothyroidism is associated with body mass increases; due to this and other factors, depression, anxiety, and stress increase, which, alongside the disease state and psychological problems, causes the quality of life to suffer. Objectives: The purpose of this research is to investigate the effect of caloric restriction along with TRX exercise on body mass, thyroid hormones, and psychological measures in obese and overweight women with hypothyroidism. Methods: 34 women aged 18–50 with hypothyroidism and a body mass index above 25 participated in this study. They were divided into three groups: a …

Peripheral Neuromuscular Fatigue Responses Of The Knee Extensors To Distinct Concurrent Training Protocols: A Preliminary Study, Tomás T. Freitas, Elena Marín-Cascales, Cristian Marín-Pagán, Linda H. Chung, Antonio Martínez-Serrano, Nicola A. Maffiuletti, Anthony J. Blazevich, Pedro E. Alcaraz

Research outputs 2022 to 2026

Background: This study aimed to investigate the extent and time course of peripheral neuromuscular fatigue of the knee extensors following different concurrent training protocols in recreationally active men. Methods: In a randomized, counterbalanced, crossover design, ten participants completed one exercise session of three concurrent exercise protocols in consecutive weeks and in similar resting conditions: traditional concurrent training (TCT), sprint interval training (SIT), and high-intensity resistance circuit training (HRC). Maximal voluntary isometric contraction (MVIC) and electrically evoked tetanic force of the knee extensors were assessed before, immediately after, and at 24 and 48 h following each exercise session. Linear mixed models …

Remote Hr-Guided High-Intensity Interval Training With Weekly Health Monitoring In Breast Cancer Patients During Chemotherapy: A Moderation Analysis Of Physiological Predictors, Madara Ketlīna Štarka-Rantiņa, Rudolfs Ceseiko, Martins Campa, Maksims Zolovs, Greta Franceska Jermolenko, Kristaps Eglitis, Alicia Llorente, Aija Linē, Aija Klavina

Baltic Journal of Health and Physical Activity

Background: The study aimed to investigate the effects of a six-month remotely monitored heart rate – guided high-intensity interval training (HIIT) program on aerobic capacity, functional performance, and weekly self-reported health outcomes in women with stage II–III breast cancer undergoing neoadjuvant chemotherapy. Materials and methods: Fifty-six women (mean age 47 ± 8 years) were randomly assigned (1:1) to a HIIT group or a control group (CG). Thirty-five participants were included in analyses (HIIT group = 17; CG = 18). HIIT group performed 4 × 4-minute HIIT sessions at the intensity of 85–95% of the peak heart rate, two to three …

Effects Of A 10-Day Remote Ischemic Preconditioning Protocol On Anaerobic And Aerobic Performance And Post-Exercise Cytokine Responses, Paulina Brzezińska, Jan Mieszkowski, Madalena Kochanowicz, Andżelika Borkowska, Jędrzej Antosiewicz, Andrzej Kochanowicz

Baltic Journal of Health and Physical Activity

Background: Remote ischemic preconditioning (RIPC) consists of brief cycles of limb is-chemia and reperfusion and has been proposed as an ergogenic strategy. This study examined whether a 10-day lower-limb RIPC protocol affects anaerobic and aerobic performance and post-exercise cytokine responses in physically active men. Materials and methods: Sixty healthy, physically active men were assigned to anaerobic (Wingate Anaerobic Test (WAnT), n = 29) or aerobic (Bruce treadmill test (BTT), n = 28) protocols and completed a 10-day lower-limb RIPC (220 mmHg) or SHAM (20 mmHg) intervention. Serum IL-6, IL-10, and IL-15 were measured at baseline and immediately post-exercise before and …

Limits Of Post-Activation Performance Enhancement: Asymmetry Persists Despite Performance Gains, Talia Thompson, Monique Mokha

Journal for Sports Neuroscience

Post-activation performance enhancement (PAPE) protocols are commonly used to improve power, yet their influence on inter-limb force symmetry remains unclear. This study examined the effects of a PAPE protocol on inter- and intra-session symmetry and performance during a countermovement (CMJ. Ten American football players preparing for the National Football League’s draft completed a complex PAPE protocol consisting of two baseline CMJ trials on dual uniaxial force plates, followed by three sets of maximum effort lower-body lifts (e.g., split squats) alternated with two CMJ trials. Jump height (JH), reactive strength index modified (RSImod), and asymmetry indices for concentric impulse (CIA), eccentric …