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1.
J Appl Biomech ; : 1-9, 2024 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-38866380

RESUMO

Assessment of player's postural control following a lower limb injury is of interest to sports medicine practitioners due to its fundamental role in daily tasks and sporting activities. The aim was to longitudinally monitor professional rugby union players' postural control during each phase of the rehabilitation program (acute, middle, and late) following a lower limb injury. Seven male rugby union players (height 1.80 [0.02] m; mass 100.3 [11.4] kg; age 24 [4] y) sustained a time loss, noncontact lower limb injury. Static postural control was assessed via sway path (in meters), and dynamic postural control was assessed via vertical postural stability index. Group differences (P < .05) were reported across the acute, middle, and late phase. Smaller magnitudes of sway path were observed for eyes-open sway path, and for the middle and late phase smaller magnitudes of vertical postural stability index (P < .05) at the end session compared with first session. Whereas larger magnitudes of vertical postural stability index were found between baseline and the last session (P < .05). Large interindividual and intraindividual variation was apparent across the 3 phases of rehabilitation. Postural control improvements were identified during rehabilitation. However, postural control did not return to baseline, with altered kinetics throughout each rehabilitation phase.

2.
Rehabil Nurs ; 49(3): 86-94, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38696434

RESUMO

PURPOSE: Most persons who have had strokes are cared for at home by family members-many of whom experience depressive symptoms and quality of life changes as a result of providing care. The objective of this study is to determine theoretically based factors associated with unhealthy days in stroke family caregivers. RESEARCH DESIGN AND METHODS: Secondary data analysis was conducted using baseline data from a large randomized controlled clinical trial testing the Telephone Assessment and Skill-Building Kit program with 254 family caregivers of persons who have had strokes. Guided by a conceptual model derived from Lazarus' transactional approach to stress, data were analyzed using multiple regression with unhealthy days as the dependent variable and theoretically based factors as independent variables. RESULTS: Caregivers were mostly female (78%), White (71%), spouses (47%), or adult children (29%). Caregivers reported nine unhealthy days on average within the past month. A total of 37.8% of the variance in unhealthy days was explained by caregiver task difficulty, level of optimism, threat appraisal, depressive symptoms, and life changes with depressive symptoms being the strongest individual predictor because of shared variance. CLINICAL RELEVANCE: Unhealthy days is an important part of stroke family caregiver health. Factors associated with unhealthy days in this study provide areas to consider in future intervention development.


Assuntos
Cuidadores , Acidente Vascular Cerebral , Humanos , Feminino , Cuidadores/psicologia , Cuidadores/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Acidente Vascular Cerebral/psicologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/enfermagem , Idoso , Adulto , Qualidade de Vida/psicologia , Depressão/psicologia , Estresse Psicológico/psicologia
3.
Curr Biol ; 34(9): R418-R434, 2024 05 06.
Artigo em Inglês | MEDLINE | ID: mdl-38714175

RESUMO

Ecosystem restoration can increase the health and resilience of nature and humanity. As a result, the international community is championing habitat restoration as a primary solution to address the dual climate and biodiversity crises. Yet most ecosystem restoration efforts to date have underperformed, failed, or been burdened by high costs that prevent upscaling. To become a primary, scalable conservation strategy, restoration efficiency and success must increase dramatically. Here, we outline how integrating ten foundational ecological theories that have not previously received much attention - from hierarchical facilitation to macroecology - into ecosystem restoration planning and management can markedly enhance restoration success. We propose a simple, systematic approach to determining which theories best align with restoration goals and are most likely to bolster their success. Armed with a century of advances in ecological theory, restoration practitioners will be better positioned to more cost-efficiently and effectively rebuild the world's ecosystems and support the resilience of our natural resources.


Assuntos
Conservação dos Recursos Naturais , Ecossistema , Conservação dos Recursos Naturais/métodos , Ecologia/métodos , Recuperação e Remediação Ambiental/métodos , Biodiversidade , Mudança Climática
4.
Front Immunol ; 15: 1387454, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38799468

RESUMO

Introduction: Mycobacteria are known to exert a range of heterologous effects on the immune system. The mycobacteria-based Freund's Complete Adjuvant is a potent non-specific stimulator of the immune response used in immunization protocols promoting antibody production, and Mycobacterium bovis Bacille Calmette Guérin (BCG) vaccination has been linked with decreased morbidity and mortality beyond the specific protection it provides against tuberculosis (TB) in some populations and age groups. The role of heterologous antibodies in this phenomenon, if any, remains unclear and under-studied. Methods: We set out to evaluate antibody responses to a range of unrelated pathogens following infection with Mycobacterium tuberculosis (M.tb) and vaccination with BCG or a candidate TB vaccine, MTBVAC, in non-human primates. Results: We demonstrate a significant increase in the titer of antibodies against SARS-CoV-2, cytomegalovirus, Epstein-Barr virus, tetanus toxoid, and respiratory syncytial virus antigens following low-dose aerosol infection with M.tb. The magnitude of some of these responses correlated with TB disease severity. However, vaccination with BCG administered by the intradermal, intravenous or aerosol routes, or intradermal delivery of MTBVAC, did not increase antibody responses against unrelated pathogens. Discussion: Our findings suggest that it is unlikely that heterologous antibodies contribute to the non-specific effects of these vaccines. The apparent dysregulation of B cell responses associated with TB disease warrants further investigation, with potential implications for risk of B cell cancers and novel therapeutic strategies.


Assuntos
Vacina BCG , Mycobacterium tuberculosis , Tuberculose , Vacinação , Animais , Vacina BCG/imunologia , Vacina BCG/administração & dosagem , Tuberculose/imunologia , Tuberculose/prevenção & controle , Mycobacterium tuberculosis/imunologia , Anticorpos Antibacterianos/imunologia , Anticorpos Antibacterianos/sangue , Anticorpos Antivirais/imunologia , Anticorpos Antivirais/sangue , Vacinas contra a Tuberculose/imunologia , Vacinas contra a Tuberculose/administração & dosagem , Feminino , Macaca mulatta , SARS-CoV-2/imunologia , COVID-19/imunologia , COVID-19/prevenção & controle , Imunidade Heteróloga , Masculino
5.
J Sports Sci ; 42(7): 589-598, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38743402

RESUMO

The aim was to examine the effect of focus of attention cues on foot angle for retraining movement purposes. Twenty (females: 8) rearfoot-striking recreational runners (mass: 72.5 ± 11.8 kg; height: 1.73 ± 0.09 m; age: 32.9 ± 11.3 years) were randomly assigned to an internal focus (IF) (n = 10) or external focus (EF) (n = 10) verbal cue group. Participants performed 5 × 6 minute blocks of treadmill running (control run, 3 × cued running, retention run) at a self-selected running velocity (9.4 ± 1.1 km∙h-1) during a single laboratory visit. Touchdown foot angle, mechanical efficiency, internal and external work were calculated and, centre of mass (COM) and foot movement smoothness was quantified. Linear-mixed effect models showed an interaction for foot angle (p < 0.001, ηp2 = 0.35) and mechanical efficiency (p < 0.001, ηp2 = 0.40) when comparing the control to the cued running. Only the IF group reduced foot angle and mechanical efficiency during cued running, but not during the retention run. The IF group produced less external work during the 1st cued run than the control run. COM and foot smoothness were unaffected by cueing. Only an IF produced desired technique changes but at the cost of reduced mechanical efficiency. Movement smoothness was unaffected by cue provision. Changes to foot angle can be achieved within 6 minutes of gait retraining.


Assuntos
Atenção , Sinais (Psicologia) , , Marcha , Corrida , Humanos , Corrida/fisiologia , Masculino , Adulto , Feminino , Fenômenos Biomecânicos , Marcha/fisiologia , Pé/fisiologia , Atenção/fisiologia , Adulto Jovem , Movimento/fisiologia
6.
Curr Biol ; 34(9): R407-R412, 2024 05 06.
Artigo em Inglês | MEDLINE | ID: mdl-38714173

RESUMO

Many of the world's ecosystems are under unprecedented stress as human pressures have escalated to be a dominant driver of ecosystem composition and condition. Direct impacts such as agriculture, extraction, and development are impacting vast swathes of land and ocean, while the effects of human-caused climate change are felt even in the most remote parts of marine and terrestrial wildernesses. These impacts are resulting in changes ranging from ecosystem collapse or replacement to novel mixes of species due to temperature-driven range shifts. While reducing human pressures is paramount for the future viability of vulnerable ecosystems, much attention is now also focused on whether degraded areas can be restored. Indeed, the UN has declared 2021-2030 the Decade on Ecosystem Restoration, which aims to "prevent, halt and reverse the degradation of ecosystems on every continent and in every ocean".


Assuntos
Mudança Climática , Conservação dos Recursos Naturais , Ecossistema , Conservação dos Recursos Naturais/métodos , Animais , Biodiversidade
7.
Alcohol Clin Exp Res (Hoboken) ; 48(4): 667-679, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38426214

RESUMO

BACKGROUND: Alcohol use disorders (AUDs) are widespread, devastating and complex. About 20% of people who consume alcohol develop problem use, accounting for over 5% of worldwide deaths. While numerous animal models have facilitated understanding of the consequences of excessive drinking, translational models allow for experimental manipulation of factors thought to contribute to AUD liability. METHODS: We employ a single-exposure conditioned place preference assay (SE-CPP) to investigate the influence of age, sex and the opioid peptide ß-endorphin (bE) on the initial rewarding effects of ethanol, a strong predictor of AUDs. Adolescent (PND28-35) and adult (PND70-90) male and female, control C57BL/6J and bE-deficient mice were tested following a single injection of 1.5 g/kg of ethanol. Following the SE-CPP test, animals were deeply anesthetized, sacrificed, and perfused, and the brains were subsequently sectioned at 40 microns and processed for immunohistochemical localization of c-fos. One-sample, two-tailed t-tests were used to assess drug preference or aversion and the locomotor effects of alcohol. RESULTS: In general, adults were more sensitive to the effects of alcohol than adolescents, and outcomes depended on sex and bE. For example, among females, adolescents were stimulated by the drug, but insensitive to locomotor effects as adults, while among males, adolescents were insensitive and adults sedated. Wild-type adolescents of both sexes failed to evince initial subjective reward from the drug, but bE-deficient adolescents, and all adult subjects, preferred a context once associated with ethanol over one that had been paired with saline. c-fos immunoreactivity in multiple brain regions was attenuated in bE-deficient animals, though influences of both sex and bE grew stronger with age. CONCLUSIONS: This study demonstrates the utility of the SE-CPP paradigm for elucidating factors that contribute to the liability for AUDs, and supports the growing body of research that shows that sensitivity to the rewarding effects of alcohol changes during the course of development. Our results also suggest that developmental contributions are sex-dependent, and may also depend on the influence of endogenous opioid signaling.

8.
Ecology ; 105(1): e4192, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37878728

RESUMO

In the midst of an ongoing biodiversity crisis, much research has focused on species losses and their impacts on ecosystem functioning. The functional consequences (ecosystem response) of shifts in communities are shaped not only by changes in species richness, but also by compositional shifts that result from species losses and gains. Species differ in their contribution to ecosystem functioning, so species identity underlies the consequences of species losses and gains on ecosystem functions. Such research is critical to better predict the impact of disturbances on communities and ecosystems. We used the "Community Assembly and the Functioning of Ecosystems" (CAFE) approach, a modification of the Price equation to understand the functional consequences and relative effects of richness and composition changes in small nonvolant mammal and dung beetle communities as a result of two common disturbances in North American prairie restorations, prescribed fire and the reintroduction of large grazing mammals. Previous research in this system has shown dung beetles are critically important decomposers, while small mammals modulate much energy in prairie food webs. We found that dung beetle communities were more responsive to bison reintroduction and prescribed fires than small nonvolant mammals. Dung beetle richness increased after bison reintroduction, with higher dung beetle community biomass resulting from changes in remaining species (context-dependent component) rather than species turnover (richness components); prescribed fire caused a minor increase in dung beetle biomass for the same reason. For small mammals, bison reintroduction reduced energy transfer through the loss of species, while prescribed fire had little impact on either small mammal richness or energy transfer. The CAFE approach demonstrates how bison reintroduction controls small nonvolant mammal communities by increasing prairie food web complexity, and increases dung beetle populations with possible benefits for soil health through dung mineralization and soil bioturbation. Prescribed fires, however, have little effect on small mammals and dung beetles, suggesting a resilience to fire. These findings illustrate the key role of re-establishing historical disturbance regimes when restoring endangered prairie ecosystems and their ecological function.


Assuntos
Bison , Besouros , Animais , Ecossistema , Pradaria , Bison/fisiologia , Biodiversidade , Besouros/fisiologia , Mamíferos/fisiologia , Solo
9.
Cereb Cortex ; 34(1)2024 01 14.
Artigo em Inglês | MEDLINE | ID: mdl-38112581

RESUMO

Developing neurophysiological tools to predict WHO tumor grade can empower the treating teams for a better surgical decision-making process. A total of 38 patients with supratentorial diffuse gliomas underwent an asleep-awake-sedated craniotomies for tumor removal with intraoperative neuromonitoring. The resting motor threshold was calculated for different train stimulation paradigms during awake and asleep phases. Receiver operating characteristic analysis and Bayesian regression models were performed to analyze the prediction of tumor grading based on the resting motor threshold differences. Significant positive spearman correlations were observed between resting motor threshold excitability difference and WHO tumor grade for train stimulation paradigms of 5 (R = 0.54, P = 0.00063), 4 (R = 0.49, P = 0.002), 3 (R = 0.51, P = 0.001), and 2 pulses (R = 0.54, P = 0.0007). Kruskal-Wallis analysis of the median revealed a positive significant difference between the median of excitability difference and WHO tumor grade in all paradigms. Receiver operating characteristic analysis showed 3 mA difference as the best predictor of high-grade glioma across different patterns of motor pathway stimulation. Bayesian regression found that an excitability difference above 3 mA would indicate a 75.8% probability of a glioma being high grade. Our results suggest that cortical motor excitability difference between the asleep and awake phases in glioma surgery could correlate with tumor grade.


Assuntos
Neoplasias Encefálicas , Glioma , Humanos , Neoplasias Encefálicas/cirurgia , Vigília , Teorema de Bayes , Glioma/cirurgia , Craniotomia/efeitos adversos , Craniotomia/métodos , Vias Eferentes , Organização Mundial da Saúde , Mapeamento Encefálico/métodos
10.
West J Nurs Res ; 46(1): 3-9, 2024 01.
Artigo em Inglês | MEDLINE | ID: mdl-37905540

RESUMO

BACKGROUND: Midlife Black women suffer disproportionately from cardiovascular disease and are 65% more likely to die following a cardiac event compared with White women. Recruitment and retention of midlife Black women in clinical trials has been historically low. The culturally tailored Midlife Black Women's Stress Reduction and Wellness (B-SWELL) intervention was codeveloped with the community and designed to lower cardiovascular disease risk in midlife Black women. OBJECTIVES: We sought to assess participant satisfaction in the randomized feasibility trial of the B-SWELL intervention. METHODS: A feasibility trial comparing the B-SWELL to a wellness intervention was conducted in the winter and spring of 2021 in compliance with pandemic research protocols. An adapted survey tool was used to rate satisfaction with the intervention and its technology using a Likert-type scale (1 [strongly disagree] to 5 [strongly agree]). Survey subscales assessed usefulness, ease, and acceptability of the intervention(s). RESULTS: Randomization yielded no statistical demographic differences (N = 48). Satisfaction for the interventions was high in both the B-SWELL and Wellness intervention groups with mean scores of 4.57 and 4.56, respectively. Mean scores for technology were 4.49 for the B-SWELL and 4.47 for the Wellness group. Subscales were also rated highly. Narrative responses were positively aligned with satisfaction scores. CONCLUSIONS: Results support use of cultural adaptation and community participatory methods to develop and deliver interventions targeted to at-risk populations. Culturally adapted interventions designed in collaboration with the community have greater authenticity, increasing the potential for higher recruitment, retention, and participant satisfaction of underrepresented populations. The trial is registered in ClinicalTrials.gov (NCT04404478).


Assuntos
Doenças Cardiovasculares , Satisfação Pessoal , Feminino , Humanos , Negro ou Afro-Americano , Doenças Cardiovasculares/prevenção & controle , Fatores de Risco , Promoção da Saúde
11.
Int J Pediatr Otorhinolaryngol ; 176: 111843, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38157706

RESUMO

OBJECTIVES: Ankyloglossia or tongue tie is a condition where the lingual frenulum restricts tongue movement, negatively impacting breastfeeding. An increasing number of infants diagnosed with ankyloglossia may lead to unnecessary procedures. To limit the overtreatment of this problem, we established a specialist clinic to provide the best available evidence-based care to the mother-infant dyad. METHODS: We discuss the development of a specialist tongue tie assessment clinic in our unit. RESULTS: From January to October 2023, there were 162 visits to the clinic by 157 patients. During this time, there were 96 frenotomies performed. CONCLUSIONS: The mother-infant dyad is a vulnerable patient group. Establishing a specialist tongue tie assessment clinic with otolaryngology and lactation expertise provides the best available evidence-based care.


Assuntos
Anquiloglossia , Lactente , Recém-Nascido , Feminino , Humanos , Anquiloglossia/diagnóstico , Anquiloglossia/cirurgia , Freio Lingual/cirurgia , Aleitamento Materno , Mães , Instituições de Assistência Ambulatorial
12.
Science ; 382(6670): 589-594, 2023 11 03.
Artigo em Inglês | MEDLINE | ID: mdl-37917679

RESUMO

Restoring vegetation in degraded ecosystems is an increasingly common practice for promoting biodiversity and ecological function, but successful implementation is hampered by an incomplete understanding of the processes that limit restoration success. By synthesizing terrestrial and aquatic studies globally (2594 experimental tests from 610 articles), we reveal substantial herbivore control of vegetation under restoration. Herbivores at restoration sites reduced vegetation abundance more strongly (by 89%, on average) than those at relatively undegraded sites and suppressed, rather than fostered, plant diversity. These effects were particularly pronounced in regions with higher temperatures and lower precipitation. Excluding targeted herbivores temporarily or introducing their predators improved restoration by magnitudes similar to or greater than those achieved by managing plant competition or facilitation. Thus, managing herbivory is a promising strategy for enhancing vegetation restoration efforts.


Assuntos
Biodiversidade , Recuperação e Remediação Ambiental , Herbivoria , Plantas
13.
JMIR Hum Factors ; 10: e47294, 2023 12 22.
Artigo em Inglês | MEDLINE | ID: mdl-37874735

RESUMO

BACKGROUND: COVID-19 remains an ongoing public health crisis. Black Americans remain underrepresented among those vaccinated and overrepresented in both COVID-19 morbidity and mortality. Medical misinformation, specifically related to COVID-19, has exacerbated the impact of the disease in Black American communities. Communication tools and strategies to build relationships and disseminate credible and trustworthy diagnostic and preventative health information are necessary to improve outcomes and equity for historically oppressed populations. OBJECTIVE: As the initial phase of a larger mixed methods project to develop, pilot, and evaluate a mobile health (mHealth) intervention among a population at high risk for COVID-19 and cardiovascular comorbidities, this study sought to explore COVID-19 information behavior among Black Americans. Specifically, this study examined (1) preferences for COVID-19 education via mHealth, (2) barriers and facilitators to COVID-19 education and diagnostic testing and routine care for associated cardiovascular and respiratory comorbidities in the local community, and (3) key content for inclusion in a COVID-19 mHealth app. METHODS: This qualitative study used principles of community-based participatory research and information systems research to conduct 7 focus groups across 3 sites. Focus groups were audio recorded and transcribed for thematic analysis using an abductive approach. RESULTS: The study sample included 54 individuals across sites with a mean age of 50.24 (SD 11.76; range 20-71) years. Participants were primarily female (n=42, 78%) and Black (n=54, 100%) with varied education levels. Over half (n=29, 54%) of the participants were employed full-time, and nearly three-fourths (n=40, 74%) had household incomes

Assuntos
Negro ou Afro-Americano , COVID-19 , Telemedicina , Feminino , Humanos , Pessoa de Meia-Idade , COVID-19/epidemiologia , Escolaridade , Síndrome de COVID-19 Pós-Aguda , Masculino , Adulto Jovem , Adulto , Idoso
14.
Laryngoscope Investig Otolaryngol ; 8(5): 1376-1383, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37899862

RESUMO

Objective: There are limited studies reporting on Bell's palsy and pregnancy. Our study aimed to evaluate risk factors, current treatment options and facial function outcomes in women who developed Bell's palsy in pregnancy. To our knowledge this is the first review analyzing these factors. Data sources/review methods: A search of PubMed/MEDLINE, Embase, Web of Sciences and Scopus was carried out. Studies describing risk factors, treatment and/or facial function outcomes of Bell's palsy in pregnancy were included. PRISMA-Scr guidelines were followed. Results: The search yielded 392 abstracts, of which 15 studies were included for analysis. It was not possible to perform a meta-analysis due to small numbers and quality of studies. There were 559 patients included from the 15 studies. The third trimester was the most common time for Bell's palsy to occur (n = 364, 65%). Pre-eclampsia was the most common co-morbidity reported. The most common treatment was corticosteroids and the majority of patients had a complete recovery of their palsy (58%, n = 192). Conclusion: This analysis has evaluated all available data concerning risk factors, treatment and facial function outcomes of BP in pregnancy. The third trimester is the most common time for Bell's palsy to occur in pregnancy. There is currently a lack of high quality evidence into this condition in pregnancy. Level of evidence: 1.

15.
PLoS One ; 18(10): e0293092, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37856477

RESUMO

House mice (Mus musculus) pose a conservation threat on islands, where they adversely affect native species' distributions, densities, and persistence. On Sand Island of Kuaihelani, mice recently began to depredate nesting adult moli (Laysan Albatross, Phoebastria immutabilis). Efforts are underway to eradicate mice from Sand Island, but knowledge of mouse diet is needed to predict ecosystem response and recovery following mouse removal. We used next-generation sequencing to identify what mice eat on Sand Island, followed by stable isotope analysis to estimate the proportions contributed by taxa to mouse diet. We collected paired fecal and hair samples from 318 mice between April 2018 to May 2019; mice were trapped approximately every eight weeks among four distinct habitat types to provide insight into temporal and spatial variation. Sand Island's mice mainly consume arthropods, with nearly equal (but substantially smaller) contributions of C3 plants, C4 plants, and moli. Although seabird tissue is a small portion of mouse diet, mice consume many detrital-feeding arthropods in and around seabird carcasses, such as isopods, flesh flies, ants, and cockroaches. Additionally, most arthropods and plants eaten by mice are non-native. Mouse diet composition differs among habitat types but changes minimally throughout the year, indicating that mice are not necessarily limited by food source availability or accessibility. Eradication of house mice may benefit seabirds on Sand Island (by removing a terrestrial, non-native predator), but it is unclear how arthropod and plant communities may respond and change. Non-native and invasive arthropods and plants previously consumed (and possibly suppressed) by mice may be released post-eradication, which could prevent recovery of native taxa. Comprehensive knowledge of target species' diet is a critical component of eradication planning. Dietary information should be used both to identify and to monitor which taxa may respond most strongly to invasive species removal and to assess if proactive, pre-eradication management activities are warranted.


Assuntos
Artrópodes , Ecossistema , Animais , Camundongos , Apetite , Aves/fisiologia , Dieta , Espécies Introduzidas , Isótopos
17.
Sports Biomech ; : 1-23, 2023 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-37313654

RESUMO

Changes in surface hardness are likely to alter an athlete's movement strategy. Anterior cruciate ligament (ACL) injury risk assessments that are performed on a different surface to that used for training and competition may, therefore, not represent an athlete's on-field movement strategies. The aim of this study was to examine the influence of surface hardness on multidirectional field sport athletes' movement strategies in movements that are commonly used in ACL injury risk assessments (bilateral and unilateral drop jumps, and a cutting manoeuvre). Ground reaction forcesand three-dimensional lower limb kinematics were recorded from 19 healthy, male, multidirectional field sport athletes performing bilateral and unilateral drop jumps, and a 90° cutting task on Mondo track (harder surface) and artificial turf (softer surface). Continuous (statistical parametric mapping) and discrete analyses revealed alterations in vertical and horizontal braking forces and knee and hip moments between surfaces of different hardness in all three movements (p ≤ 0.05, d > 0.5). Injury risk assessments performed on a harder surface (e.g. Mondo track) can misrepresent an athlete's risk of ACL injury compared to the same movements performed on a softer more cushioned surface that is typically used for training and/or matches (e.g. artificial turf).

18.
Front Behav Neurosci ; 17: 1155647, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37091593

RESUMO

Introduction: Childhood adversity is pervasive and linked to numerous disadvantages in adulthood, including physical health problems, mental illness, and substance use disorders. Initial sensitivity to the rewarding effects of alcohol predicts the risk of developing an alcohol use disorder, and may be linked to developmental stress. The opioid peptide ß-endorphin (ß-E) regulates the stress response and is also implicated in the risk for excessive alcohol consumption. Methods: We explored the influence of ß-E in an animal model of early life adversity using controlled maternal separation by evaluating changes in locomotor activity, anxiety-like behavior, and the initial rewarding effects of alcohol in a single exposure conditioned place preference paradigm in control C57BL/6J and ß-E deficient ß-E +/+ 0.129S2-Pomc tm1Low/J; ß-E -/- mice. Maternal separation (MS) occurred for 3 h each day from post-natal days (PND) 5-18 in approximately half the subjects. Results: Maternal interactions increased following the separation protocol equally in both genotypes. MS and control subjects were tested as adolescents (PND 26-32) or adults (PND 58-72); the effects of MS were generally more pronounced in older subjects. Adults were more active than adolescents in the open field, and MS decreased activity in adolescent mice but increased it in adults. The increase in adult activity as a result of early life stress depended on both ß-E and sex. ß-E also influenced the effect of maternal separation on anxiety-like behavior in the Elevated Plus Maze. MS promoted rewarding effects of alcohol in male ß-E deficient mice of either age, but had no effect in other groups. Discussion: Taken together, these results suggest that the effects of MS develop over time and are ß-E and sex dependent and may aid understanding of how individual differences influence the impact of adverse childhood experiences.

19.
J Clin Sleep Med ; 19(8): 1513-1521, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37086049

RESUMO

STUDY OBJECTIVES: To describe changes in sleep quality and associated sleep symptoms as women begin menopausal transition compared with premenopausal controls. METHODS: In a repeated-measures design, we analyzed data collected every 2-6 months from a community-based sample of 223 women aged 40-50 (45.6 ± 2.3) years old over a 2-year period. Each 6-month visit included urinary follicle-stimulating hormone (FSH) as a marker of ovarian function and the Pittsburgh Sleep Quality Index (PSQI) and other questionnaires (Center for Epidemiological Studies-Depression Scale; Perceived Stress Scale). Menstrual cycle and vasomotor symptoms (Seattle Women's Health Symptom Checklist) were tracked every 2 months by phone. For women entering menopausal transition (n = 68) we used data from the two consecutive visits prior to their FSH rise and the next two visits. Data from the last four consecutive visits were used for controls remaining premenopausal (n = 155). RESULTS: The transition group did not differ from controls on age, vasomotor symptoms (hot flashes/night sweats), stress, or depression but did have a higher body mass index. Measures were stable over time for controls. However, the transition group experienced an increase in PSQI scores (initial PSQI = 5.7 ± 3.2 and final PSQI = 6.3 ± 3.8; P = .030) and frequency of trouble sleeping because of feeling too hot (P = .016), which lagged the FSH rise by 6 months with no notable change in report of hot flashes/night sweats. CONCLUSIONS: Trouble sleeping because of feeling too hot, distinct from awareness of vasomotor symptoms, was the only uniform contribution to higher PSQI scores after the initial FSH increase and may signal the onset of the menopausal transition. CITATION: Zak R, Zitser J, Jones HJ, Gilliss CL, Lee KA. Sleep symptoms signaling the menopausal transition. J Clin Sleep Med. 2023;19(8):1513-1521.


Assuntos
Fogachos , Menopausa , Feminino , Humanos , Adulto , Pessoa de Meia-Idade , Saúde da Mulher , Sono , Hormônio Foliculoestimulante
20.
Proc Natl Acad Sci U S A ; 120(16): e2214574120, 2023 04 18.
Artigo em Inglês | MEDLINE | ID: mdl-37036988

RESUMO

The global loss of biodiversity has inspired actions to restore nature across the planet. Translocation and social attraction actions deliberately move or lure a target species to a restoration site to reintroduce or augment populations and enhance biodiversity and ecosystem resilience. Given limited conservation funding and rapidly accelerating extinction trajectories, tracking progress of these interventions can inform best practices and advance management outcomes. Seabirds are globally threatened and commonly targeted for translocation and social attraction ("active seabird restoration"), yet no framework exists for tracking these efforts nor informing best practices. This study addresses this gap for conservation decision makers responsible for seabirds and coastal management. We systematically reviewed active seabird restoration projects worldwide and collated results into a publicly accessible Seabird Restoration Database. We describe global restoration trends, apply a systematic process to measure success rates and response times since implementation, and examine global factors influencing outcomes. The database contains 851 active restoration events in 551 locations targeting 138 seabird species; 16% of events targeted globally threatened taxa. Visitation occurred in 80% of events and breeding occurred in 76%, on average 2 y after implementation began (SD = 3.2 y). Outcomes varied by taxonomy, with the highest and quickest breeding response rates for Charadriiformes (terns, gulls, and auks), primarily with social attraction. Given delayed and variable response times to active restoration, 5 y is appropriate before evaluating outcomes. The database and results serve as a model for tracking and evaluating restoration outcomes, and is applicable to measuring conservation interventions for additional threatened taxa.


Assuntos
Charadriiformes , Recuperação e Remediação Ambiental , Animais , Conservação dos Recursos Naturais , Extinção Biológica , Internacionalidade , Cruzamento , Ecossistema , Bases de Dados Factuais
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