Publications by authors named "Matthew Rivera"

Context: Research that has examined the association between specialization and injury in basketball has been limited to cross-sectional or retrospective studies.

Objective: To determine whether specialization is a risk factor for injury among high school basketball athletes.

Design: Prospective cohort study.

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The separation of ethylene from ethane accounts for almost 100 million tons of CO emissions annually and 0.3% of global primary energy usage. Replacing current cryogenic distillation units with adsorption separation units, especially for the minor component of ethane, would enable significant efficiency gains.

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Article Synopsis
  • Astrocytes in the nucleus accumbens (NAc) have been shown to play a significant role in stress and depression, but their transcriptional responses to stress were not well understood prior to this study.
  • Using methods like RNA-sequencing and immunohistochemistry, researchers investigated how chronic social defeat stress (CSDS) affects the transcriptome of NAc astrocytes in male mice.
  • The findings revealed a strong transcriptional response in astrocytes linked to CREB activation, which influences whether a mouse becomes stress-resilient or stress-susceptible, highlighting the potential of astrocytes in understanding neuropsychiatric disorders.
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Context: Extensive research has exposed healthcare disparities regarding socioeconomic status (SES) and race/ethnicity demographics. Previous research has shown significant differences in access to athletic training services (AT access) in the secondary school setting based on SES, but with limited samples.

Objective: This study investigated differences in AT access based on race/ethnicity and SES on a national scale.

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Metal-organic frameworks (MOFs) are porous materials with applications in gas separations and catalysis, but a lack of water stability often limits their practical use given the ubiquity of water. Consequently, it is useful to predict whether a MOF is water-stable before investing time and resources into synthesis. Existing heuristics for designing water-stable MOFs lack generality and limit the diversity of explored chemistry due to narrowly defined criteria.

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Context: Research that has examined the association between specialization and injury in basketball has been limited to cross-sectional or retrospective studies.

Objective: To determine whether specialization is a risk factor for injury among high school basketball athletes.

Design: Prospective cohort study.

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Novel brain clearing methods revolutionize imaging by increasing visualization throughout the brain at high resolution. However, combining the standard tool of immunostaining targets of interest with clearing methods has lagged behind. We integrate whole-mount immunostaining with PEGASOS tissue clearing, referred to as iPEGASOS (immunostaining-compatible PEGASOS), to address the challenge of signal quenching during clearing processes.

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Article Synopsis
  • Major depressive disorder (MDD) is associated with changes in brain structure and synaptic function, particularly in limbic regions.
  • Astrocytes, brain cells affected by chronic stress, show altered gene profiles that may play a role in these changes, especially in the nucleus accumbens (NAc).
  • The study found that a specific astrocyte-produced protease gene is downregulated in males and upregulated in females, revealing sex-specific responses to stress and offering potential new targets for MDD treatment.
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Background: Increasing evidence implicates astrocytes in stress and depression in both rodent models and human Major Depressive Disorder (MDD). Despite this, little is known about the transcriptional responses to stress of astrocytes within the nucleus accumbens (NAc), a key brain reward region, and their influence on behavioral outcomes.

Methods: We used whole cell sorting, RNA-sequencing, and bioinformatic analyses to investigate the NAc astrocyte transcriptome in male mice in response to chronic social defeat stress (CSDS).

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Background: While previous studies have examined the impact of family socioeconomic characteristics on a child's sport specialization behaviors, this research has been limited to affluent communities with limited sociodemographic diversity.

Hypothesis/purpose: The purpose of this study was to examine associations of parent income and education with child sport specialization behaviors among a nationally representative sample of youth sport parents in the United States.

Study Design: Cross-sectional.

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Clinical Scenario: Hamstring range of motion (ROM) and the influence it has on injury risk is among great discussion in the literature. Hamstring injury may result from hamstring tightness, poor flexibility, or decreased ROM, and many argue that this can be prevented through various intervention strategies. In active populations, risk of further injury, pain, and complications throughout the kinetic chain can occur if minimal hamstring ROM is left untreated.

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Context: The social determinants of health (SDOH) are circumstances under which individuals are born, work, and live that influence health outcomes. Previous researchers have examined 1 determinant of economic stability and found disparities in socioeconomic status and athletic trainer (AT) availability.

Objective: To examine the SDOH characteristics of Indiana secondary schools and AT availability.

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Context: Although guidance is available, no nationally recognized standard exists for medical documentation in athletic training, leaving individual organizations responsible for setting expectations and enforcing policies. Previous research has examined clinician documentation behaviors; however, the supervisor's role in creating policy and procedures, communicating expectations, and ensuring accountability has not been investigated.

Objective: To investigate supervisor practices regarding support, hindrance, and enforcement of medical documentation standards at an individual organization level.

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In 2015, the Strategic Alliance adopted the International Classification of Functioning, Disability, and Health (ICF) as the disablement model framework for delivery of and communication about patient care in athletic training. The purpose of this study was to examine athletic trainers' familiarity, knowledge, application, and implementation of the ICF framework. We used a cross-sectional online survey with 185 athletic trainers (age = 35 ± 9 y), which included 32 items focused on familiarity, knowledge, application, and implementation of the ICF framework.

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In healthcare, disablement model frameworks aim to improve the delivery of patient-centered care through the recognition of patient factors beyond impairments, restrictions, and limitations, which include personal, environmental, and societal factors. Such benefits translate directly to athletic healthcare providing a mechanism for athletic trainers (ATs), as well as other healthcare professionals, to ensure that all aspects of the patient are managed prior to returning to work or sport. The purpose of this study was to investigate ATs recognition and use of disablement frameworks in current clinical practice.

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Purpose: To describe youth sport participation behaviors during the COVID-19 pandemic as reported by parents of youth sport athletes, to examine the association of family demographics with the likelihood of children resuming sports, and to qualitatively report the factors influencing parental decision-making regarding youth sport participation during the COVID-19 pandemic.

Methods: A national sample of parents of youth athletes from across the United States (n=236, age: 39.2±8.

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Context: Approximately 70,000 Americans miss work annually due to tendinopathies causing pain, disability, and lower quality of life. Various conservative treatments have been demonstrated to improve outcomes in these conditions. Dry needling (DN) and therapeutic exercise are 2 such interventions that have been proposed to be a positive intervention for addressing tendinopathy.

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Context: Psychological ownership (PO) is a state in which an individual feels possession over an object, organization, or entity (eg, PO over the organization where one works, PO over the profession one serves). Understanding PO could provide insight into the "vitality of the profession" as defined in the Prioritized Research Agenda for the Athletic Training Profession.

Objective: To explore athletic trainers' (ATs') PO over their employing organizations and the athletic training profession.

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Context: Active Release Technique® (ART®) is a manual therapy used for soft tissue-related issues, commonly used to lengthen structures in a shortened position and to restore motion of soft tissues.

Objective: The purpose of this systematic review was to collect, appraise, and summarize the available literature, evaluating the effects of ART® on pain, range of motion (ROM), and disability.

Evidence Acquisition: Electronic databases (PubMed, EBSCOhost, MEDLINE, SPORTDiscus, and CINAHL) were searched from 2000 to November 2020.

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Article Synopsis
  • * A cross-sectional study analyzed data from 3,482 public high schools to assess differences in access to athletic training services based on school SES, using various demographic and economic indicators.
  • * The findings revealed that schools with greater access to athletic training services had lower percentages of students eligible for free or reduced-price lunch and higher median household incomes, highlighting disparities based on SES in athletic training access.
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Context: Nonnative English speakers (NNESs) in the United States have more than doubled since 1990, increasing the likelihood of their seeking health care and experiencing language barriers. Language barriers in health care result in ineffective communication, a decreased level of care, and a reduction in overall provider satisfaction.

Objective: To investigate the experiences of secondary school athletic trainers (ATs) who provided care to patients who were NNESs or communicated with their NNES support systems.

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Context: Chronic ankle instability (CAI) is one of the most common chronic conditions in the world, resulting in millions of dollars contributed to the health care system. Joint mobilizations have been shown to effectively improve patient and disease-specific impairments secondary to CAI. The ability for patients to complete an effective manual therapy intervention without the need for continuous visits to a health care provider can alleviate burdens on the health care system and improve patient satisfaction.

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Context: Mulligan's Mobilization with Movement (MWM) is a common intervention used to address dorsiflexion range of motion (DFROM) impairments. However, the treatment dosage of MWMs varies within the literature.

Objective: The aim of this study was to examine the effect of serial MWM application on DFROM.

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Porous organic cages (POCs) are individual soluble, porous molecules. When fabricated into mixed-matrix membranes (MMMs), the soluble POC molecules have the potential to exhibit intimate molecular-level mixing with the polymer matrix. POCs have only recently been incorporated into mixed matrix membrane materials, but this process has not yet resulted in significant improvements of membrane performance.

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