Background Under controlled conditions and in some observational studies of runners, airborne fine particulate matter smaller than 2.5 microns in diameter (PM2.5) is associated with exercise performance decrements. Objective To assess the association between event-day fine particulate matter air pollution (PM2.5) and marathon finish times. Methods Using a spatiotemporal machine-learning model, we estimated

Recent years have seen the development of various classifications of muscle injuries, primarily based on the topographic location within the bone-tendon–muscle chain. This paper proposes an enhanced nomenclature for muscle injuries that incorporates histoarchitectural definitions alongside topographic classifications, emphasizing the importance of connective tissue damage characterization. A detailed

Abstract Exercise training performed at the intensity that elicits maximal fat oxidation improves cardiovascular function and metabolic health while simultaneously reducing visceral adipose tissue in patients with obesity and type 2 diabetes. Indeed, it is currently considered an efficient non-pharmacological approach for the prevention and treatment of cardiometabolic disorders. Over the last 5 years

This study examined how physical education (PE) teachers in one Australian state approached and implemented their practice following the COVID-19 pandemic. Semi-structured interviews were undertaken with 14 primary and high school PE specialist teachers who participated in our previous COVID-19-focused studies to understand the changes that occurred in their practice over time. Analysing teachers’

Background Physical activity is beneficial for preventing non-communicable and infectious diseases, such as pneumonia. Physical activity is also a potential protective factor for reducing coronavirus disease 2019 (COVID-19) severity. Conversely, outbreaks of respiratory viral infections are more likely to occur owing to group activities, opportunities for contact with individuals and vocalisations

Background The incidence and risk factors for sport-related concussion (SRC) associated with contact and collision invasion sports (CCIS) in female youth are unclear. Objectives This systematic review aimed to identify (i) the incidence of and (ii) risk factors for SRC in female youth athletes playing CCIS. Methods A systematic search of PubMed, CINAHL, Embase, SPORTDiscus and ProQuest to 8 May, 2024

Background To combat the high prevalence of physical inactivity among children, there is an urgent need to develop and implement real-world interventions and policies that promote physical activity (PA) and reduce sedentary behaviour (SB). To inform policy makers, the current body of evidence for children’s PA/SB interventions needs to be translated. Objectives The current systematic review and meta-analysis

This scoping review brings together, for the first time, research spanning five decades focusing on Muslim students’ experiences of physical education (PE). In taking stock of this work, it advances knowledge by mapping how understandings of the relationship between religion and PE have developed, whilst identifying new avenues of inquiry. Therefore, this scoping review is a useful resource for pedagogues

Many areas of mainstream psychology have embraced the notions that understanding human behaviour can be improved by integrating developments from evolutionary science; however, evolutionary principles have not been as widely applied among sport researchers or practitioners, especially those examining athlete development and the psychology of competition and performance. In this paper, we discuss the

Various attempts have been made to emphasise the educational purpose of physical education (PE). Ennis (2011 ) has noted that understandings of content shift depending on curriculum. The aim of the paper is to explore what the enacted content becomes when the Practising Model is implemented in PE. Four PE teachers, in two Swedish secondary schools, enacted the Practising Model with five classes for

The purpose of this study was to describe the influence of secondary organizational socialization on six mid-career faculty members’ provision of physical education teacher education (PETE). The specific research questions we sought to answer were: (a) what forms of PETE did mid-career faculty members provide for their preservice teachers? and (b) what factors aided or undermined mid-career faculty

Background The training characteristics and training intensity distribution (TID) of elite athletes have been extensively studied, but a comprehensive analysis of the TID across runners from different performance levels is lacking. Methods Training sessions from the 16 weeks preceding 151,813 marathons completed by 119,452 runners were analysed. The TID was quantified using a three-zone approach (Z1

Background Static stretching is widely used to increase flexibility. However, there is no consensus regarding the optimal dosage parameters for increasing flexibility. Objectives We aimed to determine the optimal frequency, intensity and volume to maximise flexibility through static stretching, and to investigate whether this is moderated by muscle group, age, sex, training status and baseline level

Background High-intensity interval training (HIIT) performed before, during, and after cancer treatment can attenuate the adverse effects induced by anti-cancer drugs. A clear presentation and rationale of characteristics of HIIT variables is vital to produce the expected HIIT adaptations in cancer patients. However, there are concerns regarding the HIIT protocols used in the cancer literature. Objectives

International research on students’ meaningful experiences in physical education (PE) has led to the proposal of the Meaningful PE approach, aiming to guide pedagogical principles to support students’ meaningful experiences in PE. The approach currently includes democratic and reflective pedagogical principles. With this paper, we aim to contribute to the Meaningful PE approach by emphasizing the need

BACKGROUND Osteochondritis dissecans (OCD) of the knee is a focal idiopathic alteration of subchondral bone and/or its precursor with risk for instability and disruption of adjacent cartilage. Treatment options focused on preventing premature osteoarthritis vary depending on multiple patient and lesion characteristics, including lesion mobility. PURPOSE To differentiate lesion mobility before arthroscopy

Background:If an increased posterior tibial slope (PTS) and concomitant unicompartmental osteoarthritis are present, a simultaneous sagittal (slope) and coronal correcting high tibial osteotomy has been recommended. However, no study has investigated the accuracy of such combined high tibial slope correction osteotomies.Purpose:(1) To report the accuracy of navigated high tibial slope correction osteotomies

Background Physical literacy (PL) can positively affect the health of children, adolescents, and adults, and is closely related to cardiorespiratory fitness (CRF). Objective To perform a systematic review and meta-analysis to examine the relationship between overall physical literacy (PL) and CRF in children and adolescents. Methods Cross-sectional, cohort and experimental studies on the relationship

Background As the focus of classification shifts towards an evidence-based approach, it is crucial to establish a robust system that relies on valid and reliable measures of impairment to ensure legitimate and competitive opportunities for all Para athletes. However, the lack of methods that possess the necessary measurement properties for assessing impairments in Para sporting populations presents

Background:The microvasculature of the human meniscus has been previously described by Arnoczky and Warren. However, to date, the qualitative and quantitative extra-articular vascular anatomy of the medial meniscus has not been characterized.Purposes:To perform a qualitative and quantitative anatomic study of the extra-articular medial meniscal vasculature and to introduce the novel “medial meniscal

The overall aim of the present study was to understand how dancers' perception and parents' own perceptions of parents' responsiveness and competence support were associated with dancers' self-perceptions and thriving. In total, 64 dancers and 91 parents for a total of 52 matching dyads participated in the study. Dancers were aged 7-24 years, trained on average 4.17 times/weeks, and were involved in

Background Over the past few decades, the scientific community has recognized the impact of physical activity on health and performance. In parallel, researchers have been actively exploring novel methodologies to analyze the physiological and metabolic responses to exercise. Fourier transform infrared spectroscopy has emerged as a powerful tool in this effort, offering the potential to provide unique

Background Several factors such as acute symptom severity, premorbid anxiety, and depression have been associated with concussion recovery. Elevated kinesiophobia has been associated with recovery from musculoskeletal conditions, as well as increased reaction time and vestibular–ocular motor dysfunction following concussion. However, kinesiophobia has yet to be evaluated as a modifier of concussion

Background Advances in instrumented mouthguards (iMGs) allow for accurate quantification of single high-acceleration head impacts and cumulative head acceleration exposure in collision sports. However, relationships between these measures and risk of brain cell injury remain unclear. Aim The purpose of this study was to quantify measures of non-concussive head impact exposure and assess their association

Background:There may be an association between repetitive stress on the elbow and capitellar osteochondritis dissecans (COCD). The influence of activity on the characteristics or specific location of the lesion within a capitellar zone of propensity remains unclear.Purpose/Hypothesis:The purpose of this study was to evaluate COCD in gymnasts and baseball players compared with a non–upper extremity

Background:The insufficient regeneration of fibrocartilage at the tendon enthesis is the primary cause of retearing after surgical reattachment of the rotator cuff. Exosomes derived from bone marrow–derived mesenchymal stem cells (BMSC-Exos) and kartogenin (KGN) have been demonstrated to induce fibrocartilage formation. Loading drugs into exosomes may lead to a synergistic effect, significantly enhancing

Background:The utilization of lateral extra-articular tenodesis (LET) augmentation for anterior cruciate ligament reconstruction has increased. Various fixation points have been recommended based on tactile and anatomic landmarks; however, there is limited reporting of the accuracy or precision of these techniques in clinical practice.Purpose/Hypothesis:The purpose of this study was to evaluate whether

In the past four decades, health and physical education teacher education (HPETE) research has grown, emphasising social justice and activist approaches as a way to challenge the status quo of systems of oppression, including capitalism, imperialism, patriarchy, racism, LGBTQI+ phobia, and ableism. Despite a wealth of research on social justice and activist approaches in HPETE, there is a notable gap

Background:Anterior cruciate ligament (ACL) injury is one of the most severe injuries for athletes. It is important to identify risk factors because a better understanding of injury causation can help inform athletes about risk and increase their understanding of and motivation for injury prevention.Purpose:To investigate the relationship between anatomic factors and risk for future noncontact ACL

Objectives The purpose of this study was to investigate head kinematic variables in elite men’s and women’s rugby union and their ability to predict player removal for an off-field (HIA1) head injury assessment. Methods Instrumented mouthguard (iMG) data were collected for 250 men and 132 women from 1865 and 807 player-matches, respectively, and synchronised to video-coded match footage. Head peak

Background:Despite the clinical benefits over nonoperative treatment or meniscectomy, the clinical outcomes of surgical repair for medial meniscus posterior root tear (MMRT) remain suboptimal, which may be attributed to the insufficient restoration of meniscal hoop tension during surgery.Purpose:To analyze the clinical outcomes of surgical repair of MMRT based on the appearance of the meniscal tension

Background:Sleep disturbance is commonly reported by patients wearing an abduction brace after arthroscopic rotator cuff repair (ARCR). Although a sling has been proven noninferior to an abduction brace for function and repair integrity, there is no evidence-based medical support for the advantage of the sling in improving sleep quality compared with a brace.Purpose/Hypothesis:This study aimed to compare

The force–length relationship is usually obtained for isometric contractions with maximal activation, but less is known about how sarcomere length affects force during submaximal activation. During submaximal activation, length-dependent alterations in calcium sensitivity, owing to changes in cross-bridge kinetics (rate of attachment and/or detachment), result in an activation-dependent shift in optimal

Background:The open Latarjet procedure yields excellent results as a treatment for anterior shoulder instability. The position of the bony fragment and the insertion angle of the screw (the alpha angle) are critical factors for a successful procedure. The alpha angle is considered overangulated at >25°, which is associated with poor bone fixation and healing.Purpose:To assess preoperative patient anatomic

Background:Treatment for osteochondritis dissecans (OCD) of the humeral capitellum has been predominantly guided by fragment stability and articular cartilage integrity. Nonoperative management is recommended for stable lesions, whereas surgical intervention is indicated for unstable lesions and those that fail nonoperative care. Several surgical options may be considered, although limited information

Background:Shoulder stabilization surgery has evolved over time, and bony augmentation procedures on the glenoid side are being performed more often. The Latarjet procedure modifies subscapularis anatomy because the conjoined tendon divides the subscapularis muscle fibers through a split/takedown, which has structural and functional implications. Arthroscopic anatomic glenoid reconstruction (AAGR)

Background:Latissimus dorsi tendon transfer (LDTT) leads to good clinical outcomes and recovery of function. A previous study have evaluated the outcomes of LDTT at a minimum 10-year follow-up and found durable improvements in shoulder function and pain relief but observed that shoulders with fatty infiltration of the teres minor muscle and insufficiency of the subscapularis muscle tended to have inferior

Background:Previous studies have examined the relationship between patient resilience and functional outcome scores after anterior cruciate ligament reconstruction (ACLR). However, past studies have failed to explore the longitudinal relationship between preoperative resilience and functional outcomes 2 years after ACLR.Purpose:To evaluate the relationship between preoperative patient resilience and

Journal Name: Journal of Sport and Exercise Psychology Volume: 46 Issue: 6 Pages: 373-377

Background It is unknown whether there are differences in maximal oxygen uptake (\({V}\)O2max) response when prescribing intensity relative to traditional (TRAD) anchors or to physiological thresholds (THR). Objectives The present meta-analysis sought to compare: (a) mean change in \({V}\)O2max, (b) proportion of individuals increasing \({V}\)O2max beyond a minimum important difference (MID) and (c)

Background:Detection of meniscal ramp lesions concomitant with anterior cruciate ligament (ACL) injury using conventional magnetic resonance imaging (MRI) has low sensitivity, and these lesions are currently difficult to diagnose preoperatively.Purpose/Hypothesis:The purpose of this study was to assess the accuracy of MRI in detecting the presence of meniscal ramp lesions in the 120° flexed-knee position

Journal Name: Journal of Sport and Exercise Psychology Volume: 46 Issue: 6 Pages: 362-372

The effects of having new individuals join a team introduce competitive and cooperative actions that are challenging to groups. Employing socialization tactics that provide tailored role information and cultivate opportunities for social connection is positively related to perceptions of cohesion. However, the socialization process likely relies on the specific actions undertaken by members of the

Research Question: This study investigates the degree of hidden racial hatred towards athlete protests within the Black Lives Matter (BLM) movement by correcting for the Social Desirability Bias (S...

The purpose of this study was to explore the interplay between organizational culture and organizational change in non-profit sport organizations.Five Canadian national sport organizations (NSOs) p...

Background:Nonoperative management of posterior shoulder instability is common. However, limited data are available to assess the pathomorphologic factors associated with its failure.Purpose/Hypothesis:The purpose of this study was 2-fold: (1) to determine glenohumeral pathomorphologic features predictive of nonoperative management failure of posterior instability; and (2) to determine the relationship

Background:Both high body mass index (BMI) and anterior cruciate ligament reconstruction (ACLR) independently influence knee osteoarthritis risk. Preliminary evidence shows the combination of these risk factors leads to poorer recovery and altered biomechanical outcomes after ACLR, but few studies have directly evaluated early changes in cartilage health between normal-BMI and high-BMI groups in this

The Model of Excellencism and Perfectionism has been proposed to differentiate the pursuit of high but realistic standards (excellencism) from the pursuit of perfectionistic standards. In a recent study, perfectionistic standards were positively linked to bottom-line mentality, moral disengagement, and tolerance toward electronic sign stealing (cheating) in professional baseball. In this follow-up

Journal Name: Journal of Sport and Exercise Psychology Volume: 46 Issue: 6 Pages: 353-361

Background:Repair of rotator cuff tear is not always feasible, depending on the severity. Although several studies have investigated factors related to reparability and various methods to predict it, inconsistent scoring methods and a lack of validation have hindered the utility of these methods.Purpose:To develop machine learning models to predict the reparability of rotator cuff tears, compare them