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1.
Vet Anaesth Analg ; 45(2): 145-157, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29422335

RESUMO

OBJECTIVE: To compare the efficacy of three continuous positive airway pressure (CPAP) interfaces in dogs on gas exchange, lung volumes, amount of leak during CPAP and rebreathing in case of equipment failure or disconnection. STUDY DESIGN: Randomized, prospective, crossover, experimental trial. ANIMALS: Ten purpose-bred Beagle dogs. METHODS: Dogs were in dorsal recumbency during medetomidine-propofol constant rate infusions, breathing room air. Three interfaces were tested in each dog in a consecutive random order: custom-made mask (M), conical face mask (FM) and helmet (H). End-expiratory lung impedance (EELI) measured by electrical impedance tomography was assessed with no interface (baseline), with the interface only (No-CPAP for 3 minutes) and at 15 minutes of 7 cmH2O CPAP (CPAP-delivery). PaO2 was assessed at No-CPAP and CPAP-delivery, partial pressure of inspired carbon dioxide (PICO2; rebreathing assessment) at No-CPAP and the interface leak (ΔPleak) at CPAP-delivery. Mixed-effects linear regression models were used for statistical analysis (p<0.05). RESULTS: During CPAP-delivery, all interfaces increased EELI by 7% (p<0.001). Higher ΔPleak was observed with M and H (9 cmH2O) in comparison with FM (1 cmH2O) (p<0.001). At No-CPAP, less rebreathing occurred with M (0.5 kPa, 4 mmHg) than with FM (1.8 kPa, 14 mmHg) and with H (1.4 kPa, 11 mmHg), but also lower PaO2 was measured with M (9.3 kPa, 70 mmHg) than with H (11.9 kPa, 90 mmHg) and FM (10.8 kPa, 81 mmHg). CONCLUSIONS AND CLINICAL RELEVANCE: All three interfaces can be used to provide adequate CPAP in dogs. The leak during CPAP-delivery and the risk of rebreathing and hypoxaemia, when CPAP is not maintained, can be significant. Therefore, animals should always be supervised during administration of CPAP with any of the three interfaces. The performance of the custom-made M was not superior to the other interfaces.


Assuntos
Anestesia/veterinária , Anestésicos Intravenosos/administração & dosagem , Pressão Positiva Contínua nas Vias Aéreas/veterinária , Cães , Medetomidina/administração & dosagem , Propofol/administração & dosagem , Animais , Pressão Positiva Contínua nas Vias Aéreas/instrumentação , Pressão Positiva Contínua nas Vias Aéreas/métodos , Estudos Cross-Over , Feminino , Masculino , Máscaras/veterinária , Estudos Prospectivos
2.
J Clin Monit Comput ; 29(1): 187-96, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24908108

RESUMO

The aim of this study was to test the effect of cardiac output (CO) and pulmonary artery hypertension (PHT) on volumetric capnography (VCap) derived-variables. Nine pigs were mechanically ventilated using fixed ventilatory settings. Two steps of PHT were induced by IV infusion of a thromboxane analogue: PHT25 [mean pulmonary arterial pressure (MPAP) of 25 mmHg] and PHT40 (MPAP of 40 mmHg). CO was increased by 50% from baseline (COup) with an infusion of dobutamine≥5 µg kg(-1) min(-1) and decreased by 40% from baseline (COdown) infusing sodium nitroglycerine≥30 µg kg(-1) min(-1) plus esmolol 500 µg kg(-1) min(-1). Another state of PHT and COdown was induced by severe hypoxemia (FiO2 0.07). Invasive hemodynamic data and VCap were recorded and compared before and after each step using a mixed random effects model. Compared to baseline, the normalized slope of phase III (SnIII) increased by 32% in PHT25 and by 22% in PHT40. SnIII decreased non-significantly by 4% with COdown. A combination of PHT and COdown associated with severe hypoxemia increased SnIII by 28% compared to baseline. The elimination of CO2 per breath decreased by 7% in PHT40 and by 12% in COdown but increased only slightly with COup. Dead space variables did not change significantly along the protocol. At constant ventilation and body metabolism, pulmonary artery hypertension and decreases in CO had the biggest effects on the SnIII of the volumetric capnogram and on the elimination of CO2.


Assuntos
Capnografia/métodos , Débito Cardíaco/fisiologia , Hipertensão Pulmonar/fisiopatologia , Hipóxia/fisiopatologia , Anestesia/métodos , Animais , Monóxido de Carbono/química , Dobutamina/química , Hemodinâmica , Hipóxia/patologia , Nitroglicerina/química , Propanolaminas/química , Artéria Pulmonar/patologia , Circulação Pulmonar , Respiração Artificial , Sódio/química , Suínos , Tromboxano A2/química
3.
Am J Kidney Dis ; 63(1): 23-30, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23993153

RESUMO

BACKGROUND: Chronic kidney disease is associated with an increased risk of cancer, but whether reduced kidney function also leads to increased cancer mortality is uncertain. The aim of our study was to assess the independent effects of reduced kidney function on the risk of cancer deaths. STUDY DESIGN: Prospective population-based cohort study. SETTING & PARTICIPANTS: Participants of the Blue Mountains Eye Study (n=4,077; aged 49-97 years). PREDICTOR: Estimated glomerular filtration rate (eGFR). OUTCOMES: Overall and site-specific cancer mortality. RESULTS: During a median follow-up of 12.8 (IQR, 8.6-15.8) years, 370 cancer deaths were observed in our study cohort. For every 10-mL/min/1.73 m(2) reduction in eGFR, there was an increase in cancer-specific mortality of 18% in the fully adjusted model (P<0.001). Compared with participants with eGFR ≥ 60 mL/min/1.73 m(2), the adjusted HR for cancer-specific mortality for those with eGFR<60 mL/min/1.73 m(2) was 1.27 (95% CI, 1.00-1.60; P=0.05). This excess cancer mortality varied with site, with the greatest risk for breast and urinary tract cancer deaths (adjusted HRs of 1.99 [95% CI, 1.05-3.85; P=0.01] and 2.54 [95% CI, 1.02-6.44; P=0.04], respectively). LIMITATIONS: Residual confounding, such as from unmeasured socioeconomic factors and the potential effects of erythropoiesis-stimulating agents on cancer deaths, may have occurred. CONCLUSIONS: eGFR<60 mL/min/1.73m(2) appears to be a significant risk factor for death from cancer. These effects appear to be site specific, with breast and urinary tract cancers incurring the greatest risk of death among those with reduced kidney function.


Assuntos
Neoplasias da Mama/mortalidade , Taxa de Filtração Glomerular , Insuficiência Renal , Neoplasias Urológicas/mortalidade , Idoso , Idoso de 80 Anos ou mais , Neoplasias da Mama/complicações , Estudos de Coortes , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mortalidade , Insuficiência Renal/complicações , Insuficiência Renal/epidemiologia , Insuficiência Renal/fisiopatologia , Medição de Risco , Fatores de Risco , Índice de Gravidade de Doença , Análise de Sobrevida , Estados Unidos/epidemiologia , Neoplasias Urológicas/complicações
4.
Am J Kidney Dis ; 63(3): 437-45, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24210588

RESUMO

BACKGROUND: Mortality risk for people with chronic kidney disease is substantially greater than that for the general population, increasing to a 7-fold greater risk for those on dialysis therapy. Higher body mass index, generally due to higher energy intake, appears protective for people on dialysis therapy, but the relationship between energy intake and survival in those with reduced kidney function is unknown. STUDY DESIGN: Prospective cohort study with a median follow-up of 14.5 (IQR, 11.2-15.2) years. SETTING & PARTICIPANTS: Blue Mountains Area, west of Sydney, Australia. Participants in the general community enrolled in the Blue Mountains Eye Study (n = 2,664) who underwent a detailed interview, food frequency questionnaire, and physical examination including body weight, height, blood pressure, and laboratory tests. PREDICTORS: Relative energy intake, food components (carbohydrates, total sugars, fat, protein, and water), and estimated glomerular filtration rate (eGFR). Relative energy intake was dichotomized at 100%, and eGFR, at 60 mL/min/1.73 m(2). OUTCOMES: All-cause and cardiovascular mortality. MEASUREMENTS: All-cause and cardiovascular mortality using unadjusted and adjusted Cox proportional regression models. RESULTS: 949 people died during follow-up, 318 of cardiovascular events. In people with eGFR<60 mL/min/1.73 m(2) (n = 852), there was an increased risk of all-cause mortality (HR, 1.48; P = 0.03), but no increased risk of cardiovascular mortality (HR, 1.59; P = 0.1) among those with higher relative energy intake compared with those with lower relative energy intake. Increasing intake of carbohydrates (HR per 100g/d, 1.50; P = 0.04) and total sugars (HR per 100g/d, 1.62; P = 0.03) was associated significantly with increased risk of cardiovascular mortality. LIMITATIONS: Under-reporting of energy intake, baseline laboratory and food intake values only, white population. CONCLUSIONS: Increasing relative energy intake was associated with increased all-cause mortality in patients with eGFR<60 mL/min/1.73 m(2). This effect may be mediated by increasing total sugars intake on subsequent cardiovascular events.


Assuntos
Doenças Cardiovasculares/etiologia , Ingestão de Energia , Metabolismo Energético/fisiologia , Previsões , Vigilância da População , Insuficiência Renal Crônica/metabolismo , Idoso , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/metabolismo , Causas de Morte/tendências , Feminino , Seguimentos , Humanos , Masculino , New South Wales/epidemiologia , Prevalência , Estudos Prospectivos , Insuficiência Renal Crônica/complicações , Fatores de Risco , Taxa de Sobrevida/tendências
5.
Nephrol Dial Transplant ; 29(7): 1377-84, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24398890

RESUMO

BACKGROUND: Drinking eight glasses of fluid or water each day is widely believed to improve health, but evidence is sparse and conflicting. We aimed to investigate the association between fluid consumption and long-term mortality and kidney function. METHODS: We conducted a longitudinal analysis within a prospective, population-based cohort study of 3858 men and women aged 49 years or older residing in Australia. Daily fluid intake from food and beverages not including water was measured using a food frequency questionnaire. We did multivariable adjusted Cox proportional hazard models for all-cause and cardiovascular mortality and a boot-strapping procedure for estimated glomerular filtration rate (eGFR). RESULTS: Upper and lower quartiles of daily fluid intake corresponded to >3 L and <2 L, respectively. During a median follow-up of 13.1 years (total 43 093 years at risk), 1127 deaths (26.1 per 1000 years at risk) including 580 cardiovascular deaths (13.5 per 1000 years at risk) occurred. Daily fluid intake (per 250 mL increase) was not associated with all-cause [adjusted hazard ratio (HR) 0.99 (95% CI 0.98-1.01)] or cardiovascular mortality [HR 0.98 (95% CI 0.95-1.01)]. Overall, eGFR reduced by 2.2 mL/min per 1.73 m(2) (SD 10.9) in the 1207 (31%) participants who had repeat creatinine measurements and this was not associated with fluid intake [adjusted regression coefficient 0.06 mL/min/1.73 m(2) per 250 mL increase (95% CI -0.03 to 0.14)]. CONCLUSIONS: Fluid intake from food and beverages excluding water is not associated with improved kidney function or reduced mortality.


Assuntos
Doenças Cardiovasculares/mortalidade , Ingestão de Líquidos , Rim/fisiologia , Idoso , Austrália/epidemiologia , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/fisiopatologia , Causas de Morte , Feminino , Taxa de Filtração Glomerular , Humanos , Incidência , Testes de Função Renal , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Taxa de Sobrevida
6.
Sports Health ; : 19417381231223472, 2024 Jan 21.
Artigo em Inglês | MEDLINE | ID: mdl-38246889

RESUMO

CONTEXT: Coaches play an important role in promoting mental health in elite sports. However, they themselves are exposed to risks affecting their mental health, and their fears and worries are often overlooked. Moreover, it remains unclear how coaches' mental health affects their athletes' mental health. OBJECTIVE: To create a compilation of the literature on (1) elite coaches' mental health and (2) how coaches' mental health influences elite athletes' mental health. Building on this, recommendations for improving coaches' psychological well-being should be elaborated upon and discussed. DATA SOURCES: A literature search was conducted up to November 30, 2021, using the following databases: PubMed, PsycINFO, Scopus, Web of Science, and SportDiscus. STUDY SELECTION: Studies reporting elite coaches' mental health symptoms and disorders and the influence of elite coaches' mental health on elite athletes' mental health were included. STUDY DESIGN: Scoping review. LEVEL OF EVIDENCE: Level 4. DATA EXTRACTION: Data regarding elite coaches' mental health, as well as their influence on athletes' mental health and performance, were included in a descriptive analysis. The PRISMA guidelines were used to guide this review. RESULTS: Little research has been done on elite coaches' mental health disorders, although studies confirm that they do experience, for example, symptoms of burnout, anxiety, and depression. The influence of coaches' mental health on their athletes is underinvestigated, with research focused mainly on the influence of coaches' stress. CONCLUSION: Knowledge about coaches' mental health is still limited. Coaches' poor mental health diminishes coaching performance and might impair athletes' mental health. Coaches should receive more support, including sports psychiatric care and education on the importance of mental health. This could improve the mental health of both coaches and athletes, and positively affect athlete performance.

7.
Nutr Cancer ; 65(6): 834-42, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23909727

RESUMO

Neutropenic enterocolitis is a potentially fatal complication of myeloablative chemotherapy in patients with acute myeloid leukemia. Omega-3 polyunsaturated fatty acids (PUFA) are precursors of potent anti-inflammatory prostaglandins. Our aim was to explore the safety and effectiveness of omega-3 PUFA added to parenteral nutrition in protecting leukemia patients from severe enterocolitis. Fourteen patients with acute myeloid leukemia who received omega-3 PUFA in a Phase II trial were compared with 66 consecutive control patients not getting this intervention. We performed crude and adjusted comparisons, using inverse probability of treatment weighting for adjusted analysis, and blind outcome assessment to minimize assessor bias. Primary outcome was severe enterocolitis (≥Grade 3). The crude odds ratio of Grade 3 colitis or higher was 1.36 (95% CI 0.37 to 4.96, P = 0.64), and the adjusted odds ratio was 0.79 (95% CI 0.35 to 1.78, P = 0.57). There was little evidence to suggest differences between groups in serious adverse events and overall mortality. Our results provide little evidence that addition of omega-3 PUFA is beneficial in this condition. Routine treatment with omega-3 PUFA is currently not warranted.


Assuntos
Enterocolite Neutropênica/prevenção & controle , Ácidos Graxos Ômega-3/administração & dosagem , Leucemia Mieloide Aguda/tratamento farmacológico , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Nutrição Parenteral , Projetos Piloto , Resultado do Tratamento
8.
Praxis (Bern 1994) ; 111(6): 339-344, 2022 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-35473320

RESUMO

Interdisciplinary and Psychiatric Treatment of Anabolic Androgenic Steroids Users Abstract. The prevalence of anabolic androgenic steroid (AAS; anabolic steroids) use in recreational sports is underestimated. Due to the influence of social media, an increase in AAS use in recreational sports and in the general population is to be expected. AAS use is associated with significant physical and mental health consequences, and the psychiatric consequences include the risk of developing addictive behaviour. The widespread stigmatization of AAS use also by professionals often undermines users' trust in physicians and drives them into the arms of so-called "gurus." The tightening of anti-doping practices in sports and an exclusively prohibitive stance have so far failed to convincingly curb the problem in recreational sports. Harm reduction strategies could help patients to get the help they need from primary care providers.


Assuntos
Anabolizantes , Dopagem Esportivo , Anabolizantes/efeitos adversos , Humanos , Psicoterapia , Esteroides , Congêneres da Testosterona/efeitos adversos
9.
Praxis (Bern 1994) ; 111(6): e339-e344, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35473322

RESUMO

The prevalence of anabolic androgenic steroid (AAS; anabolic steroids) use in recreational sports is underestimated. Due to the influence of social media, an increase in AAS use in recreational sports and in the general population is to be expected. AAS use is associated with significant physical and mental health consequences, and the psychiatric consequences include the risk of developing addictive behaviour. The widespread stigmatization of AAS use also by professionals often undermines users' trust in physicians and drives them into the arms of so-called "gurus." The tightening of anti-doping practices in sports and an exclusively prohibitive stance have so far failed to convincingly curb the problem in recreational sports. Harm reduction strategies could help patients to get the help they need from primary care providers.


Assuntos
Anabolizantes , Dopagem Esportivo , Anabolizantes/efeitos adversos , Humanos , Psicoterapia , Esteroides , Congêneres da Testosterona/efeitos adversos
10.
Praxis (Bern 1994) ; 111(6): 333-337, 2022 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-35473323

RESUMO

Recognizing IPED Use in Clinical Practice Abstract. The non-medical use of image- and performance-enhancing drugs (IPEDs) is widespread in the fitness and bodybuilding scene. The reasons for IPED use are often hedonistic in nature and they are used in so-called "cycles" over several weeks. The most common side effects are: testicular atrophy, acne, hypersexuality, hypertension, gynecomastia, lipid metabolism disorders, mood swings, hair loss, and policythemia. Common consequences following IPED use are: decreased libido, oligo- or azoospermia, and erectile dysfunction. To reduce undesirable side effects and consequences, IPED users often take medications for self-treatment; occasionally IPED users also mention such medications and ask for them in the general medical practice.


Assuntos
Substâncias para Melhoria do Desempenho , Exercício Físico , Humanos , Masculino
11.
Praxis (Bern 1994) ; 111(6): 345-349, 2022 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-35473327

RESUMO

IPED Use in Recreational Sports Abstract. Abtract: IPED consumers seek medical advice when uncertain as to their use. Due to shame or fear of stigmatization IPED consumers are often reluctant to talk about their drug use; they fear prejudice and a lack of experience when caring for this specific patient group. In order to strengthen trust, a non-judgmental, non-stigmatizing and supportive attitude is essential. The interaction should primarily lead to an understanding of why AAS are being used, what the patient's concerns are, and why medical help is being sought, without judgment or condemnation of the behavior. If no motivation to abstain from drug use is found during the consultation, harm reduction should be sought and the consequences of use addressed. Regular talks and active harm reduction can increase the confidence in evidence-based treatment to achieve personal motivation to abstain under medical supervision.


Assuntos
Esportes , Medo , Humanos , Motivação
12.
Praxis (Bern 1994) ; 111(6): e345-e349, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35473330

RESUMO

IPED consumers seek medical advice when uncertain as to their use. Due to shame or fear of stigmatization IPED consumers are often reluctant to talk about their drug use; they fear prejudice and a lack of experience when caring for this specific patient group. In order to strengthen trust, a non-judgmental, non-stigmatizing and supportive attitude is essential. The interaction should primarily lead to an understanding of why AAS are being used, what the patient's concerns are, and why medical help is being sought, without judgment or condemnation of the behavior. If no motivation to abstain from drug use is found during the consultation, harm reduction should be sought and the consequences of use addressed. Regular talks and active harm reduction can increase the confidence in evidence-based treatment to achieve personal motivation to abstain under medical supervision.


Assuntos
Esportes , Transtornos Relacionados ao Uso de Substâncias , Medo , Humanos , Motivação
13.
J Eat Disord ; 10(1): 109, 2022 Jul 25.
Artigo em Inglês | MEDLINE | ID: mdl-35879735

RESUMO

BACKGROUND: Current research on muscle dysmorphia (MD) has focused on restrained eating behaviors and has adopted a primarily male perspective. Despite initial evidence, the role of possible binge eating associated with MD has only been scarcely investigated. To extend the transdiagnostic and cross-gender approaches and address the dearth in research related to MD, this study investigated the association between MD psychopathology and binge eating in men and women. METHODS: This study investigated the association between MD psychopathology and binge eating in both men and women. Participants were a sample of 5905 men (n = 422) and women (n = 5483) social media users aged 18-72 years. They completed an online survey that included self-report measures assessing demographics, binge eating, MD psychopathology, and drive for thinness and leanness. Binge eating was assessed using the diagnostic questions of the validated German version of the Eating Disorder Examination-Questionnaire. The Muscle Dysmorphic Disorder Inventory (MDDI) was used to assess MD psychopathology. A total score of > 39 was set as a cutoff to define an "MD at-risk" state for both men and women. Hierarchical logistic regression analysis was used to analyze the association between MD psychopathology and binge eating. RESULTS: MD psychopathology was significantly positively associated with binge eating in both men and women. Among the three MDDI subscales, only appearance intolerance was significantly associated with MD, and drive for size and functional impairment were not associated. MD at-risk status yielded a predicted probability of binge eating of 25% for men and 66.9% for women. The increased probability of binge eating associated with MD at-risk status was mainly accounted for by appearance intolerance in men and drive for thinness in women. CONCLUSION: MD psychopathology is positively associated with binge eating in both men and women. Binge eating episodes should therefore form part of the clinical assessment of MD.


Muscle dysmorphia is a mental disorder in which those affected are constantly preoccupied with being insufficiently muscular. Although there is initial evidence that binge eating may play a role in the clinical presentation of muscle dysmorphia (MD), this has not been investigated. In addition, MD has rarely been studied in women. We conducted a study involving 5905 men (n = 422) and women (n = 5483) using self-report questionnaires to examine the association between binge eating and symptoms of MD. We found that symptoms of MD and binge eating are positively associated. According to our model, two-thirds of women and one-quarter of men at-risk for MD exhibit binge eating. Binge eating episodes should therefore form part of the clinical assessment of MD.

14.
Front Sports Act Living ; 4: 867140, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35592589

RESUMO

Background: Government restrictions during the first COVID-19 lockdown, such as the closure of gyms and fitness centers, drastically limited the training opportunities of bodybuilders and fitness athletes (BoFA) who rely on indoor training facilities. This provided a unique situation to investigate the effect of training limitations on the training patterns, training adaptive strategies and mental health of BoFAs. Objectives: The primary aim of this study was to investigate differences in the training patterns and the mental health of BoFA before and during the first COVID-19 lockdown. The secondary aim was to assess whether BoFA who exhibited features of muscle dysmorphia were affected differently from the group that did not. Methods: A cross-sectional study was conducted with 85 BoFAs by means of an online questionnaire asking about sports activity, intensity, subjective physical performance, and economic status, including primary or secondary occupations before (from memory) and during lockdown, current physical health problems and financial fears, symptoms of depression, sleep disorders, anxiety (trait and state), muscle dysmorphia, coping mechanisms and actions during the first lockdown in Switzerland. Results: Training patterns and mental health of BoFA were influenced by the COVID-19 pandemic and first lockdown. During lockdown, the physical activity on the BoFA dropped significantly from 2.3 ± 0.8 h per day to 1.6 ± 0.9 h per day (p < 0.001), the subjective training intensity decreased significantly from 85.7 ± 13.2% to 58.3 ± 28.3% (p < 0.001) and the subjective performance declined significantly from 83.4 ± 14.3% to 58.2 ± 27.8% (p < 0.001) of maximal performance. In comparison to those without risk for body dysmorphia, participants at risk rated their maximal performance significantly lower and scored significantly higher for depression, sleep disorders and anxiety. Conclusion: This study showed the significant changes on the training patterns of BoFA before and during the first COVID-19 lockdown and poor mental health scores of BoFA during the lockdown itself, with those at risk of muscle dysmorphia scoring statistically worse regarding mental health than those with no risk of muscle dysmorphia. To better understand the particularities of BoFA, further investigation is needed to understand their psychology and in particular the effect of training restrictions on it.

15.
Swiss Med Wkly ; 152: w30133, 2022 01 03.
Artigo em Inglês | MEDLINE | ID: mdl-35019196

RESUMO

BACKGROUND: Airborne transmission of SARS-CoV-2 is an important route of infection. For the wildtype (WT) only a small proportion of those infected emitted large quantities of the virus. The currently prevalent variants of concern, Delta (B1.617.2) and Omicron (B.1.1.529), are characterized by higher viral loads and a lower minimal infective dose compared to the WT. We aimed to describe the resulting distribution of airborne viral emissions and to reassess the risk estimates for public settings given the higher viral load and infectivity. METHOD: We reran the Monte Carlo modelling to estimate viral emissions in the fine aerosol size range using available viral load data. We also updated our tool to simulate indoor airborne transmission of SARS-CoV-2 by including a CO2 calculator and recirculating air cleaning devices. We also assessed the consequences of the lower critical dose on the infection risk in public settings with different protection strategies. RESULTS: Our modelling suggests that a much larger proportion of individuals infected with the new variants are high, very high or super-emitters of airborne viruses: for the WT, one in 1,000 infected was a super-emitter; for Delta one in 30; and for Omicron one in 20 or one in 10, depending on the viral load estimate used. Testing of the effectiveness of protective strategies in view of the lower critical dose suggests that surgical masks are no longer sufficient in most public settings, while correctly fitted FFP2 respirators still provide sufficient protection, except in high aerosol producing situations such as singing or shouting. DISCUSSION: From an aerosol transmission perspective, the shift towards a larger proportion of very high emitting individuals, together with the strongly reduced critical dose, seem to be two important drivers of the aerosol risk, and are likely contributing to the observed rapid spread of the Delta and Omicron variants of concern. Reducing contacts, always wearing well-fitted FFP2 respirators when indoors, using ventilation and other methods to reduce airborne virus concentrations, and avoiding situations with loud voices seem critical to limiting these latest waves of the COVID-19 pandemic.


Assuntos
COVID-19 , Pandemias , Aerossóis , Humanos , SARS-CoV-2 , Carga Viral
16.
Front Psychol ; 13: 880313, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36518949

RESUMO

Objectives: Little is known about the extent of video gaming among elite athletes, specifically under stressful conditions like those induced by the current COVID-19 pandemic. The aim of this study was to evaluate the intensity and extent of video gaming in the context of the COVID-19 pandemic, during which the usual daily routine of many athletes was disrupted. Methods: Overall, 203 elite athletes from Switzerland who participated in Olympic sports or in "International Olympic Committee"-approved disciplines were interviewed using an online questionnaire. They were questioned on their video game consumption during the first Swiss lockdown during the COVID-19 pandemic as well as on their athletic performance and economic circumstances. Additionally, mental and physical health were assessed by standardized questionnaires. From this questionnaire data, predictors of gaming time were evaluated using multivariable analysis. Results: Before the lockdown, 21% of the participating athletes played video games regularly. The average playing time was 15.8 h per month within the gamer group. During the first lockdown, 29% of athletes reported gaming regularly, and within the gamer group the average gaming time increased significantly, by 164%. The mental health burden showed significant differences between gamers and non-gamers regarding existential fears during the lockdown, the ability to cope with governmental measures due to COVID-19 and total sleeping time. However, there was no statistical difference in respect to standardized scales for depressive symptoms, sleep behavior, and anxiety. Higher video gaming time during the lockdown was significantly associated with male gender and previous gaming before the COVID-19 lockdown. Conclusion: Video gaming time increased significantly during the first lockdown. Whether video gaming among elite athletes hereby functions as an effective coping behavior remains to be shown and requires more research.

17.
PLoS One ; 17(12): e0278203, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-36454814

RESUMO

BACKGROUND: The COVID-19 pandemic and associated restrictions have led to abrupt changes in the lives of elite athletes. OBJECTIVES: The objective of this prospective cohort study was to examine training load, subjective sports performance, physical and mental health among Swiss elite athletes during a 6-month follow-up period starting with the first Swiss lockdown. METHODS: Swiss elite athletes (n = 203) participated in a repeated online survey evaluating health, training, and performance related metrics. After the first assessment during the first lockdown between April and May 2020, there were monthly follow-ups over 6 months. RESULTS: Out of 203 athletes completing the first survey during the first lockdown, 73 athletes (36%) completed all assessments during the entire 6-month follow-up period. Sports performance and training load decreased during the first lockdown and increased again at the beginning of the second lockdown in October 2020, while symptoms of depression and financial fears showed only a transient increase during the first lockdown. Self-reported injuries and illnesses did not change significantly at any timepoint in the study. Stricter COVID-19 restrictions, as measured by the Government Stringency Index (GSI), were associated with reduced subjective sports performance, as well as lower training intensity, increased financial fears, poorer coping with restrictions, and more depressive symptoms, as measured by the 9-item module of the Patient Health Questionnaire-9 (PHQ-9). CONCLUSION: This study revealed a negative impact of the COVID-19 restrictions on sports performance, training load and mental health among Swiss elite athletes, while the rate of self-reported injuries and illnesses remained unaffected.


Assuntos
Desempenho Atlético , COVID-19 , Humanos , Saúde Mental , COVID-19/epidemiologia , Estudos Prospectivos , Pandemias , Suíça/epidemiologia , Controle de Doenças Transmissíveis , Atletas , Estudos de Coortes , Desempenho Físico Funcional
18.
Eur J Nutr ; 50(8): 665-71, 2011 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21369745

RESUMO

PURPOSE: The hypothesis of this clinical study was to determine whether glucocorticoid use and immobility were associated with in-hospital nutritional risk. METHODS: One hundred and one patients consecutively admitted to the medical wards were enrolled. Current medical conditions, symptoms, medical history, eating and drinking habits, diagnosis, laboratory findings, medications, and anthropometrics were recorded. The Nutrition Risk Score 2002 (NRS-2002) was used as a screening instrument to identify nutritional risk. RESULTS: The results confirmed that glucocorticoid use and immobility are independently associated with nutritional risk determined by the NRS-2002. Constipation could be determined as an additional cofactor independently associated with nutritional risk. CONCLUSIONS: Glucocorticoid treatment, immobility, and constipation are associated with nutritional risk in a mixed hospitalized population. The presence of long-time glucocorticoid use, immobility, or constipation should alert the clinician to check for nutritional status, which is an important factor in mortality and morbidity.


Assuntos
Repouso em Cama/efeitos adversos , Constipação Intestinal/complicações , Glucocorticoides/efeitos adversos , Desnutrição/complicações , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Hospitalização , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Estado Nutricional , Fatores de Risco
19.
Front Sports Act Living ; 3: 759335, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34870195

RESUMO

Objectives: During the COVID-19 pandemic, increased patterns of substance use have been reported in the general population. However, whether this also applies to athletes is not yet clear. This study aimed to detect changes in alcohol consumption and cannabis use in elite athletes and bodybuilders during the first COVID-19 lockdown in Switzerland. Methods: Between April 25 and May 25, 2020, a cross-sectional online survey was conducted among bodybuilders and Swiss elite athletes who were active in Olympic sports and disciplines approved by the International Olympic Committee (IOC) on at least the national level. The collected data included information on alcohol and cannabis use during the last month (lockdown) and in the year before COVID-19 lockdown (pre-lockdown), daily training times, existential fears on a scale from 1 to 100, Patient Health Questionnaire-9 for depression (PHQ-9), Insomnia Severity Index (ISI), and State-Trait Anxiety Inventory (STAI). Results: N = 275 athletes (elite athletes: n = 193; bodybuilders: n = 82) was included in this study. Both pre-lockdown and during lockdown, more bodybuilders used cannabis (both time points: p < 0.001) than elite athletes, and more elite athletes drank alcohol (pre-lockdown: p = 0.005, lockdown: p = 0.002) compared to bodybuilders. During lockdown, fewer athletes drank alcohol compared to before, but those who continued drinking did so on more days per week (p < 0.001, Eta2 = 0.13). Elite athletes were more likely to increase their drinking with 17.7 vs. 8.2% in bodybuilders. When compared to pre-lockdown measures, the number of athletes using cannabis did not change during lockdown. Only three of 203 elite athletes reported using cannabis during lockdown; this contrasts with 16 of 85 bodybuilders. In a multivariate regression model, existential fears and a lower ISI score were significant predictors for increased alcohol consumption during the lockdown in the entire sample. In a model based on elite athletes only, male sex and a lower ISI score predicted increased alcohol consumption. In a bodybuilder-based model, predictors of increased alcohol consumption were existential fears and trait anxiety. Conclusion: We suggest identifying athletes who are at risk for increased alcohol and cannabis use; we suggest this to be able to professionally support them during stressful times, such as the COVID-19 pandemic.

20.
Artigo em Inglês | MEDLINE | ID: mdl-34682521

RESUMO

The COVID-19 pandemic and the associated first lockdown measures may have had a relevant impact on the mental health of competitive athletes. This study aimed to evaluate the prevalence of various mental health issues in a Swiss elite athletes' cohort during the first lockdown of the pandemic, and to assess their association with different potential risk factors. Elite athletes from different disciplines were interviewed during the first lockdown in spring 2020 by means of an online questionnaire on symptoms of existing anxieties, depression and sleep disorders, as well as on training circumstances and physical performance before and during the lockdown. Additionally, the economic situation, secondary occupations and current physical health problems were surveyed. A total of 203 (92 female, 111 male) athletes met the inclusion criteria and participated in the survey. Training volume and intensity decreased significantly during lockdown from 3.1 to 2.7 h/day. Financial existential fears increased and were associated with higher training volumes and higher trait anxiety scores. Depressive symptoms and insomnia were present but not exceptionally frequent during the lockdown. Depressive symptoms were associated with higher anxiety scores, higher insomnia severity scores, lower training intensity and worse coping with the measures taken by the authorities against the pandemic. Changes in training and daily habits due to the first lockdown may have affected the mental health of elite athletes. Longitudinal studies should, however, further investigate the long-term effects of the pandemic on mental health.


Assuntos
COVID-19 , Pandemias , Ansiedade/epidemiologia , Atletas , Controle de Doenças Transmissíveis , Depressão/epidemiologia , Feminino , Humanos , Masculino , Prevalência , Fatores de Risco , SARS-CoV-2 , Suíça/epidemiologia
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