Publications by authors named "DeFreese J"

Context: Over 80% of patients anticipate fully returning to sport (RTS) within 1 year after anterior cruciate ligament reconstruction (ACLR), but only one quarter of patients succeed. Although several factors influence the RTS process, this study focused on how psychological responses to injury, such as injury-related fear and self-determined motivation, help to explain variation in rehabilitation experiences. There is limited information about how these meaningful psychological responses to injury are connected to responses such as athlete burnout or how patient perceptions of these responses relate to rehabilitation.

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Context: Understanding former professional football players engagement with health promoting behaviors (physical exercise, high quality diet, and good sleep hygiene) will be helpful for developing lifestyle interventions to improve their feelings of well-being, a relatively understudied facet of health among this population.

Objective: Examine associations among health-promoting behaviors and subjective outcomes related to well-being among former National Football League (NFL) players.

Design: Cross-sectional.

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Context: Mindfulness interventions (yoga, meditation) in traumatic brain injury populations show promising improvements in injury outcomes. However, most studies include all injury severities and use in-person, general programming lacking accessibility and specificity to the nuance of concussion. Therefore, this study investigated the feasibility and preliminary effectiveness of an online, concussion-focused meditation intervention among young adults with a concussion history.

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Previous studies on pain experiences in retired contract sport athletes have been cross-sectional, leaving gaps in our understanding of the evolution of pain interference (PI) and factors that influence trajectories decades after sport discontinuation. This study investigated the longitudinal course of PI in former male National Football League (NFL) players over a 19-year period following sport discontinuation and examined factors influencing overall levels and trajectories of PI. Former NFL players completed health surveys in 2001, 2010, and 2019, with PI ratings measured using the 36-Item Short Form Health Survey (2001 and 2010) and the Patient-Reported Outcomes Measurement Information System (2019).

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Sport-related concussion (SRC) is a prevalent injury. Significant disparities in SRC outcomes exist across racial and ethnic groups. These disparities may be attributed to the unequal distribution of political power (or influence) and resource allocation in various communities, shaping individuals' social determinants of health (SDOH).

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Article Synopsis
  • Concussions are prevalent sport injuries that need proper care, with athletic trainers playing a crucial role in diagnosis and management.
  • Various challenges exist in sports settings that can negatively affect athletic trainers' decision-making regarding concussions, impacting prevention and athlete health.
  • A study analyzed factors influencing athletic trainers' decisions, highlighting that healthcare communication, self-efficacy, and employment setting significantly impact their intentions to make appropriate concussion-related choices.
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Objective: To identify, quantify and analyse determinants of depression, anxiety and stress symptoms among female student-athletes.

Design: Systematic review and meta-analysis.

Data Sources: Five online databases (PubMed, CINAHL, PsychInfo, SportDiscus and Web of Science) searched from inception through 14 September 2023.

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Objective: Investigate the relationships between concussion history and years of football participation (repetitive head impact proxy) with alcohol use across multiple decades in former professional football players.

Methods: Participants (n = 348; mean age = 49.0 ± 9.

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Objective: Investigate associations between the LIfestyle for BRAin Health (LIBRA) risk score with odds of mild cognitive impairment (MCI) diagnosis and cognitive function, incorporating concussion history.

Methods: Former National Football League (NFL) players (N = 1050; mean age = 64.8 ± 9.

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After highly publicized stories of student-athletes' struggles with mental health, the spotlight on mental health and well-being in this special issue coincides with a broader growing concern for the long-term impact of competitive sport participation on student-athlete health and wellness. The end of a competitive sport career represents a potentially vulnerable life transition. As demonstrated in the literature, the unique aspects of elite sport culture shape student-athletes' perceptions of their identity, health, and health behaviors, which have implications for how student-athletes navigate their health and well-being as they transition away from the embedded health care structure inherent to elite sport.

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Context: Individuals with lower extremity osteoarthritis (OA) have a 25% greater risk of cardiovascular disease (CVD) than those without OA. The prevalence of traumatic joint injuries among National Football League (NFL) players exposes these athletes to an elevated risk for OA and potentially a greater risk of cardiovascular risk factors (CRFs) and CVD.

Objectives: To examine the associations between a history of lower extremity joint injury, lower extremity OA, and the prevalence of CRFs and CVD among former NFL athletes.

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Background: The age of first exposure (AFE) to American football participation is a growing concern for late-life function. Mixed evidence exists surrounding AFE and may be attributed to varied methods employed across studies.

Objective: To examine the associations between AFE to American football participation with measures of cognitive, behavioral, and physical function and brain-related medical diagnoses across age categories among former National Football League players.

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Purpose: The present study investigated Special Operations Forces (SOF) combat Servicemember mental health at different SOF career stages in association with resilience.

Methods: Fifty-eight SOF combat Service Members either entering SOF (career start; n=38) or multiple years with their SOF organization (mid-career; n=20) self-reported mild traumatic brain injury (TBI) history, resilience, subjective well-being, depression, anxiety, and posttraumatic stress. Poisson regression analyses were employed to test SOF career stage differences in each mental health symptom using resilience, while accounting for other pertinent military factors.

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Article Synopsis
  • The study examines how subjective cognitive difficulties (SCDs) relate to various psychological and lifestyle factors among former NFL players, focusing on those with and without mild cognitive impairment (MCI).
  • The researchers analyzed data from 907 players aged 50 and older, using multivariable regression to identify key contributors to SCD, including anxiety, fatigue, and other health-related issues.
  • Findings indicate that anxiety and fatigue are the strongest predictors of SCD in these athletes, suggesting that self-reported cognitive issues may not accurately reflect actual cognitive impairments, emphasizing the need for comprehensive assessments.
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Objectives: To examine the stability of former National Football League (NFL) players' recall of professional football concussion.

Methods: Two-hundred-and-nine former NFL players (ceasing football participation before/in 2001) completed surveys in 2001, 2010, and 2019 and reported the number of concussions sustained during their professional careers (0, 1 … 10, >10). Participants were categorized into four 'recall stability' groups, based upon concussion recall [e.

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Purpose: Our aim in this study was to psychometrically test resilience assessments (Ego Resiliency Scale [ER89], Connor-Davidson Resilience Scale [CD-RISC 25], Responses to Stressful Experiences Scale [RSES short-form]) and describe resilience levels in a Special Operations Forces (SOF) combat sample.

Methods: Fifty-eight SOF combat Servicemembers either entering SOF (career start; n = 38) or having served multiple years with their SOF organization (mid-career; n = 20) self-reported resilience, mild traumatic brain injury (mTBI) history, and total military service.

Results: All resilience metrics demonstrated acceptable internal consistency, but ceiling effects were found for CD-RISC and RSES scores.

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This study examined how associations of self-reported concussion history and depression vary based on different variable characterizations. Former NFL players (=1,697) completed a General Health Survey, indicating the number of concussions they sustained during their football career and whether a physician had diagnosed them with depression, and the PROMIS 4-item Depression scale. Self-reported concussion history was characterized as: a 3-category variable (0, 1-2, 3+) with (1) indicator variables and (2) as an ordinal variable; a 5-category variable (0, 1-2, 3-5, 6-9, 10+) with (3) indicator variables and (4) as an ordinal variable; and (5) the original interval scale (0, 1, 2,…, 10, 10+).

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Transition from professional sport to nonsport endeavors has implications for postcareer health and well-being of athletes. The purpose of the current study was to examine associations among transition-related psychosocial factors and current mental health outcomes in former National Football League (NFL) players. Participants were former NFL players (n = 1,784; mean age = 52.

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Background And Purpose: Postmortem and experimental studies indicate a potential association between repeated concussions and stroke risk in older contact sport athletes. We examined the relationship between concussion and stroke history in former National Football League players aged ≥50 years.

Methods: Former professional football players aged ≥50 years who played ≥1 year in the National Football League were enrolled in the cross-sectional study.

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Background: Potential links between a history of sport-related concussions and later-life neurobiological and psychological brain health have been studied in former collision-sport athletes. However, empirical studies of how former athletes perceive the future of their brain health as a result of these injuries are missing.

Objectives: We aimed to (1) identify the extent to which former National Football League players currently have concerns about their long-term psychological and cognitive functioning as a result of concussions sustained while playing football; (2) examine whether current concerns are different than concerns they had while playing football; (3) examine the relationship between current brain health concerns and self-reported concussion history (SR-CHx); and (4) explore other important factors associated with these concerns.

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Objective: This study investigated the longitudinal course of depressive symptom severity over 19 years in former American football players and the influence of concussion history, contact sport participation and physical function on observed trajectories.

Methods: Former American football players completed a general health questionnaire involving demographic information, medical/psychiatric history, concussion/football history and validated measures of depression and physical function at three time points (2001, 2010 and 2019). Parallel process latent growth curve modelling tested associations between concussion history, years of football participation, and overall and change in physical function on the overall level and trajectory of depressive symptoms.

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Purpose: This study aimed to estimate prevalence of mild cognitive impairment (MCI) and dementia diagnoses in former National Football League (NFL) players ≥50 yr old and examine the relationships among these diagnoses and an array of predictors of long-term brain health.

Methods: A cross section of former NFL players (n = 922; mean ± SD age, 64.8 ± 8.

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Objectives: Years of sport participation (YoP) is conventionally used to estimate cumulative repetitive head impacts (RHI) experienced by contact sport athletes. The relationship of this measure to other estimates of head impact exposure and the potential associations of these measures with neurobehavioral functioning are unknown. We investigated the association between YoP and the Head Impact Exposure Estimate (HIEE), and whether associations between the two estimates of exposure and neurobehavioral functioning varied.

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Context: Little research has examined health-related quality of life in former National Football League (NFL) players.

Objective: Examine the association of musculoskeletal injury history and current self-reported physical and mental health in former NFL players.

Setting: Cross-sectional questionnaire.

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