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1.
Br J Sports Med ; 2024 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-39153748

RESUMO

OBJECTIVE: Concerns exist about the possible detrimental effects of exercise training on aortic size and valve function in individuals with bicuspid aortic valve (BAV). This multicentre international study aimed to determine the characteristics of aortic size and valve function in athletes versus non-athletes with BAV and athletes with tricuspid aortic valve (TAV). METHODS: We enrolled competitive athletes with BAV and age- and sex-matched athletes with TAV and non-athletes with BAV. We assessed valve function, aortic size and biventricular measures using echocardiography. Individuals with established moderate-severe AV stenosis, regurgitation or significant aortic dilation were excluded from the study. RESULTS: The study population comprised 504 participants: 186 competitive athletes with BAV (84% males; age 30±11 years), 193 competitive athletes with TAV and 125 non-athletes with BAV. The aortic annulus was greater in athletes with BAV than athletes with TAV and non-athletes with BAV (p<0.001). Both athletic and non-athletic individuals with BAV had greater sinuses of Valsalva, sino-tubular junction and ascending aorta diameters than athletes with TAV (p<0.001). However, no significant differences were found between athletes and non-athletes with BAV. Left ventricular index volumes and mass were greater in athletes with BAV than in the other two groups (p<0.001). Individuals with BAV (athletes and non-athletes) had greater mean gradients than TAV athletes. CONCLUSION: This multicentre international study demonstrates no differences between athletes with BAV and non-athletes with BAV regarding aortic valve function or aortic dimensions. However, athletes with BAV have larger aortic diameters and a relatively worse valvular function than athletes with TAV.

2.
Nutr Metab Cardiovasc Dis ; 31(7): 2173-2180, 2021 06 30.
Artigo em Inglês | MEDLINE | ID: mdl-33975735

RESUMO

BACKGROUND AND AIMS: Italy responded to the Covid-19 pandemic early by forcing the entire population into a 2-month domestic confinement. The aim of this study was to assess gender differences in the impact of lockdown on physical activity and lifestyle habits. METHODS AND RESULTS: A cross-sectional web-based survey was conducted in April 2020 on a general population sample residing in Italy. Participants completed validated questionnaires. Gender differences were assessed using a multivariable adjusted logistic regression model using gender as independent and exposures as dependent variables. Metabolic equivalents-hour/week was used to evaluate physical activity. A total of 2218 participants (761 men and 1457 women) agreed to participate in the study and completed the questionnaire. The survey found that women compared to men showed 1) a lower level of physical activity before the institution of lockdown, 2) a lower tendency to reduce physical activity levels during the lockdown, when gender differences in compliance with guideline recommendations for physical activity disappeared, 3) and a worsening of sleep and stool passage; men experienced an increase in alcohol consumption. CONCLUSIONS: Women, who previously had a lower level of physical activity than men, showed a lower tendency to reduce it during lockdown, revealing greater resilience than men. However, the worsening in sleep, in stool passage, and a trend to weight increase revealed signs of psychological suffering after a protracted lockdown period.


Assuntos
COVID-19/prevenção & controle , Exercício Físico , Estilo de Vida Saudável , Saúde Mental , Distanciamento Físico , Adolescente , Adulto , Idoso , COVID-19/transmissão , Estudos Transversais , Defecação , Feminino , Hábitos , Nível de Saúde , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Fatores Sexuais , Sono , Fatores de Tempo , Aumento de Peso , Adulto Jovem
3.
Nutr Metab Cardiovasc Dis ; 30(9): 1582-1589, 2020 08 28.
Artigo em Inglês | MEDLINE | ID: mdl-32605880

RESUMO

BACKGROUND AND AIMS: Great attention is now being paid to effective policies and programs to promote physical activity among adolescents, girls consistently found to be less active than boys. The aim of this study was to assess gender differences in perceived barriers for physical activity practice and their relationship with physical activity levels and physical condition among adolescents. METHODS AND RESULTS: A cross-sectional study was conducted in February-April 2017 among students (n = 368) in the last year of two state high schools in Florence (Italy). Participants underwent the measurements of anthropometric parameters (height, weight, waist, and hip circumferences), blood pressure and administration of 3 standardized questionnaires (International Physical Activity Questionnaire, Mediterranean Diet Score Quiz, and Barriers to Being Active Quiz). Gender differences were assessed using a multivariate logistic regression model (adjusted for age and body mass index). The prevalence of participants who reached recommended levels was lower among girls compared to boys (OR 0.27; 95% CI 0.17-0.43). The number of perceived barriers to physical activity was higher among girls than among boys (OR 1.52; 95% CI 1.29-1.79), lack of energy for exercise and lack of willpower being the two barriers most frequently reported by girls. At multivariable adjusted logistic regression analysis, gender (female), and positivity of at least one perceived barrier (score ≥ 5) were independently selected as the main determinants of non-compliance with WHO criteria for physical activity. CONCLUSIONS: Exercise professionals should be aware of the barriers that young girls can face during exercise prescription and be able to contrast them with useful individual strategies.


Assuntos
Comportamento do Adolescente , Doenças Cardiovasculares/prevenção & controle , Exercício Físico , Comportamentos Relacionados com a Saúde , Conhecimentos, Atitudes e Prática em Saúde , Estilo de Vida Saudável , Comportamento de Redução do Risco , Adolescente , Fatores Etários , Doenças Cardiovasculares/diagnóstico , Doenças Cardiovasculares/fisiopatologia , Estudos Transversais , Dieta Saudável , Dieta Mediterrânea , Feminino , Humanos , Itália , Masculino , Motivação , Medição de Risco , Fatores de Risco , Comportamento Sedentário , Fatores Sexuais
4.
Medicina (Kaunas) ; 56(2)2020 Feb 14.
Artigo em Inglês | MEDLINE | ID: mdl-32075185

RESUMO

Performing physical exercise after a colorectal cancer diagnosis is associated with lower mortality related to the tumor itself. In order to improve physical recovery after elective surgery, there are no specific exercise protocols after discharge from the hospital. The purpose of this study is to show the preliminary results of an exercise program after colorectal cancer surgery. Six patients with non-metastatic colorectal adenocarcinoma addressed to respective laparoscopic were randomly assigned to a mixed supervised/home-based exercise program for six months and compared to a control group without exercise. To assess the effectiveness of the program, functional and body composition parameters were evaluated. Three months after surgery, the exercise group increased flexibility (p < 0.01, ES = 0.33), strength of lower limbs (p < 0.01, ES = 0.42) and aerobic capacity (p < 0.01, ES = 0.28). After surgery, the six patients experienced a significant reduction in body mass index (BMI) and free fat mass. More specifically, fat mass reached the lowest values, with a concomitant increase in cell mass after six months (p < 0.01, ES = 0.33). This did not occur in the control group. Colorectal cancer treatment induces a reduction in physical function, particularly during the first six months after treatment. A mixed exercise approach appears promising in countering this process after colorectal cancer surgery.


Assuntos
Neoplasias Colorretais/terapia , Procedimentos Cirúrgicos do Sistema Digestório/reabilitação , Terapia por Exercício/normas , Exercício Físico/psicologia , Idoso , Idoso de 80 Anos ou mais , Índice de Massa Corporal , Neoplasias Colorretais/psicologia , Procedimentos Cirúrgicos do Sistema Digestório/efeitos adversos , Procedimentos Cirúrgicos do Sistema Digestório/métodos , Exercício Físico/fisiologia , Terapia por Exercício/métodos , Terapia por Exercício/estatística & dados numéricos , Feminino , Humanos , Laparoscopia/métodos , Laparoscopia/reabilitação , Laparoscopia/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Projetos Piloto
5.
Cardiovasc Ultrasound ; 17(1): 20, 2019 Oct 20.
Artigo em Inglês | MEDLINE | ID: mdl-31630681

RESUMO

BACKGROUND: Cardiac adaptation to intense physical training is determined by many factors including age, gender, body size, load training and ethnicity. Despite the wide availability of ECG analysis, with a higher presence of abnormalities in different races, echocardiographic studies on young Afro-Caribean (AA) and Caucasian athletes (CA) are lacking in literature. We aimed to assess the effect in the secondary LV remodelling of load training in young AA players compared to matched CA players. METHOD: Seventy-seven AA and 53 CA matched soccer players (mean age 17.35 ± 0.50 and 18.25 ± 0.77 y) were enrolled. They were evaluated with echocardiography. A subgroup of 30 AA and 27 CA were followed up for a period of 4 years. The myocardial contractile function was evaluated by speckle-tracking echocardiographic global longitudinal strain (GLS). RESULTS: No significant differences were found in weight and height and in blood pressure response to maximal ergometer test in either group. In AA a higher level of LV remodelling, consisting in higher LV wall thickness, higher interventricular septum (IVS) and posterior wall (PW) thickness were found (IVS: 10.04 ± 0.14 and 9.35 ± 0.10 in AA and CA respectively, p < 0.001. PW: 9.70 ± 0.20 and 9.19 ± 0.10 mm in AA and CA respectively, p < 0.05). Strain data showed no significant differences between the two groups (22.35 ± 0.48 and 23.38 ± 0.69 in AA (n = 27) and CA (n = 25), respectively). At the beginning of the follow-up study AA showed a significantly higher left ventricular remodelling (IVS = 9.29 ± 0.3 and 8.53 ± 0.12 mm in AA and CA respectively, p < 0.002. PW = 9.01 ± 0.2 and 8.40 ± 0.20 in AA and CA respectively, p = 0.1). During the next four years of follow-up we observed a regular parallel increase in LV wall thickness and chamber diameters in both groups, proportionally to the increase in body size and LV mass. (IVS = 10.52 ± 0.17 and 9.03 ± 0.22 mm in AA and CA respectively, p < 0.001. PW: 10.06 ± 0.17 and 8.26 ± 0.19 mm in AA and CA respectively, p < 0.001). CONCLUSION: The study shows that the ventricular remodelling observed in AA appears to be a specific phenotype already present in pre-adolescence. These data also suggest that genetic/ethnic factors play a central role in left ventricular remodelling during the first years of life in elite athletes.


Assuntos
Atletas , Negro ou Afro-Americano , Ecocardiografia/métodos , Ventrículos do Coração/diagnóstico por imagem , Hipertrofia Ventricular Esquerda/etnologia , Função Ventricular Esquerda/fisiologia , Remodelação Ventricular/fisiologia , Adolescente , Região do Caribe/epidemiologia , Eletrocardiografia , Ventrículos do Coração/fisiopatologia , Humanos , Hipertrofia Ventricular Esquerda/diagnóstico , Hipertrofia Ventricular Esquerda/fisiopatologia , Incidência , Masculino , Contração Miocárdica/fisiologia
6.
Adv Exp Med Biol ; 1005: 123-141, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28916931

RESUMO

Metabolic syndrome as a consequence of the association to overweight, hypertension, and diabetes is at high risk of coronary events. Regular physical training has been recently promoted to reduce cardiovascular risks factors, by the improved lifestyle and also by the "anti-inflammatory effectiveness." A positive impact has been shown in case of cancer survived patients either with or without comorbidities and especially in those subjects where the inflammatory process is globally represented. The American College of Sports Medicine (ACSM) guidelines and more recently a new Italian model both support the role of "exercise as therapy" at moderate level of energy expenditure. The importance to establish the individual level of physical exercise, like a drug's dose, has induced authors in investigating this aspect in diverse diseases and in different clinical fields associated to an incorrect lifestyle habits. To reach this goal, a specific research strategy is important to spread the knowledge.


Assuntos
Terapia por Exercício , Síndrome Metabólica/terapia , Doença Crônica , Metabolismo Energético , Exercício Físico , Humanos , Síndrome Metabólica/etiologia , Prescrições
7.
Cardiovasc Ultrasound ; 14(1): 46, 2016 Nov 17.
Artigo em Inglês | MEDLINE | ID: mdl-27855701

RESUMO

BACKGROUND: Regular physical exercise determines a progressive increase of the cardiac mass known as adaptive hypertrophy. Up to now, two morphological echocardiographic heart patterns of athletes have been described by Morganroth in 1975: predominant augmentation of wall thickness, and major cavity size in chamber dimensions in the case of prevalent static or dynamic components. The aim of the study was to follow up the impact of physical training on heart morphology and function in a group of elite soccer and rugby players for at least five years. METHOD: From January 1993 to December 2015 a group of 250 elite soccer players and 114 rugby players were examined: 78 soccer players and 60 rugby players were followed up for 5 years. They were matched with a control group. RESULTS: LV dimensions and LVMi were significantly higher in the athletes than in the inactive subjects (LVMi : 123.45; LVMi: 81.5 vs 94.36 g/m2 respectively). After the five-year follow up the athletes showed no significant modifications in cardiac dimensions: (LVDd from 52.00 ± mm to 52.90 ± mm; LVSd increased from 31.58 ± mm to 32.33 ± mm; Left Ventricular CMI from 120.77 to 121.45 g/m2;p = NS in soccer; from 50.43 ± mm to 52.22 ± mm; Left Ventricular Systolic diameter increased from 32.51 ± mm to 32.8 ± mm; Left Ventricular Mass index from 81,5 to 87,4 g/m2;p = NS and no significant enhancement of the aortic root diameter was observed (Aortic root: from 27.39 mm to 31.64 mm in soccer players; from 30,68 mm to 30.95 mm). CONCLUSIONS: No significant differences were found among the athletes practicing sports with different workload components, and resistance training. In trained athletes the dimensions of the LV chamber and LVMi are generally within the upper limits of the normal range. After a five-year follow-up, the dimensions of the chambers of the heart remain within the normal range, despite being within the the upper limits. Regular physical exercise induces mild LV hypertrophy which therefore can be considered an adaptive consequence to stress-exercise.


Assuntos
Atletas , Futebol Americano/fisiologia , Ventrículos do Coração/fisiopatologia , Hipertrofia Ventricular Esquerda/fisiopatologia , Futebol/fisiologia , Remodelação Ventricular/fisiologia , Adulto , Ecocardiografia , Seguimentos , Ventrículos do Coração/diagnóstico por imagem , Humanos , Hipertrofia Ventricular Esquerda/diagnóstico , Masculino , Valores de Referência , Fatores de Tempo , Adulto Jovem
8.
Cardiovasc Ultrasound ; 12: 33, 2014 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-25113389

RESUMO

INTRODUCTION: The evaluation of cardiac contraction could benefit from a connection with the underlying helical structure of cardiac fibers in athletes either completely healthy or with minor common cardiopathies like Bicuspid Aortic Valve (BAV). This study aims to exploit the potential role of 3D strain to improve the physiological understanding of LV function and modification due to physical activity as a comparative model. METHODS: Three age-matched groups of young (age 20.3 ± 5.4) individuals are prospectively enrolled: 15 normal healthy subjects, 15 healthy athletes, and 20 athletes with bicuspid aortic valve (BAV). All subjects underwent echocardiographic examination and both 2D and 3D strain analysis. RESULTS: All echo parameters were within the normal range in the three groups. Global values of end-systolic longitudinal and circumferential strain, assesses by either 2D or 3D analysis, were not significantly different. The 3D strain analysis was extended in terms of principal and secondary strain (PS, SS). Global PS was very similar, global SS was significantly higher in athletes and displays a modified time course. The comparative analysis of strain-lines pattern suggests that the enhancement of LV function is achieved by a more synchronous recruitment of both left- and right-handed helical fibers. CONCLUSIONS: 3D strain analysis allows a deeper physiological understanding of LV contraction in different types of athletes. Secondary strain, only available in 3D, identifies increase of performances due to physical activity; this appears to follow from the synergic activation of endocardial and epicardial fibers.


Assuntos
Valva Aórtica/anormalidades , Ecocardiografia Tridimensional/métodos , Doenças das Valvas Cardíacas/diagnóstico por imagem , Doenças das Valvas Cardíacas/fisiopatologia , Esportes , Disfunção Ventricular Esquerda/diagnóstico por imagem , Disfunção Ventricular Esquerda/fisiopatologia , Função Ventricular Esquerda , Adulto , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/fisiopatologia , Doença da Válvula Aórtica Bicúspide , Módulo de Elasticidade , Técnicas de Imagem por Elasticidade/métodos , Ventrículos do Coração/diagnóstico por imagem , Ventrículos do Coração/fisiopatologia , Humanos , Masculino , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Disfunção Ventricular Esquerda/etiologia
9.
J Funct Morphol Kinesiol ; 9(1)2024 Feb 29.
Artigo em Inglês | MEDLINE | ID: mdl-38535424

RESUMO

It is widely demonstrated that moderate-intensity exercise is associated with improved fitness in non-communicable chronic diseases. However, there are no specific guidelines available for transplant recipients. Body composition is closely linked to exercise capacity, typically estimated by cardiopulmonary testing, but its potential correlation with cardiovascular health outcomes has not been investigated yet. This study aims to evaluate and compare cardiorespiratory performance and body composition in two groups of liver and kidney transplant recipients. A mixed group of transplant recipients (10 kidney and 15 liver) participating in a lifestyle reconditioning program through unsupervised physical exercise prescription was examined. Both groups were assessed using bioimpedance analysis (BIA), lifestyle, and physical activity levels by IPAQ questionnaire and cardiopulmonary testing (CPET). The two groups differed by IPAQ examination: liver transplant patients practiced more physical activity. Statistically significant differences were found in peak VO2/HR (oxygen pulse), which was higher in the kidney group compared to the liver group (15.63 vs. 12.49 with p < 0.05). Body composition did not show significant differences in BMI and the percentage of FM/FFM (FFM: 78.04 ± 7.7 in Kidney T vs. 77.78 ± 7.2 in Liver T). Systolic pressure measured at the peak was significantly higher in the liver group (162.6 vs. 134 with p < 0.01). The correlation between the CPET and BIA parameters showed a positive VO2 max and FFM mass trend. The results suggest differences in cardiorespiratory fitness between the two populations of solid organ transplant recipients despite not being related to the physical activity level. The data support the importance of body composition analysis in sports medicine and the prescription of physical exercise, especially considering the potential correlation with VO2 max, even though home-based exercise does not seem to alter it substantially. BMI does not appear to be a determinant of cardiovascular performance. Other determinants should be investigated to understand the differences observed.

10.
Nutrients ; 16(2)2024 Jan 05.
Artigo em Inglês | MEDLINE | ID: mdl-38257083

RESUMO

(1) Background: Cardiovascular disease is one of the leading causes of mortality after liver transplantation. Body composition and cardiovascular performance assessment represent a potential approach for modulating lifestyle correction and proper follow-up in chronic disease patients. This study aimed to verify the additional role of an unsupervised physical activity program in a sample of male liver transplant recipients who follow the Mediterranean diet. (2) Methods: Thirty-three male liver transplant recipients were enrolled. Sixteen subjects followed a moderate-intensity home exercise program in addition to nutritional support, and seventeen received advice on the Mediterranean diet. After six months, bioelectrical vector impedance analysis (BIVA) and cardiopulmonary exercise testing (CPET) were performed. (3) Results: No differences in CPET (VO2 peak: exercise 21.4 ± 4.1 vs. diet 23.5 ± 6.5 mL/kg/min; p = 0.283) and BIVA (Z/H: exercise 288.3 ± 33.9 vs. diet 310.5 ± 34.2 Ω/m; p = 0.071) were found. Furthermore, the BIVA values of resistance correlate with the submaximal performance of the Ve/VCO2 slope (R = 0.509; p < 0.05) and phase angle with the maximal effort of the VO2 peak (R = 0.557; p < 0.05). (4) Conclusions: Unsupervised physical exercise alone for six months does not substantially modify liver transplant recipients' cardiovascular performance and hydration status, despite their adherence to a Mediterranean diet. The body composition analysis is useful to stratify the risk profile, and it is potentially associated with better outcomes in transplanted subjects.


Assuntos
Sistema Cardiovascular , Dieta Mediterrânea , Humanos , Masculino , Impedância Elétrica , Terapia por Exercício , Fígado
11.
Intern Emerg Med ; 19(2): 343-352, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37985618

RESUMO

AIM: Healthy lifestyle and appropriate diet are of critical importance after liver transplant (LT). We provided an analysis of the main patterns of physical activity and found factors associated with physical activity itself. METHODS: Clinically stable LT recipients were enrolled between June and September 2021. Patients completed a composite questionnaire about physical activity, adherence to Mediterranean Diet (MD), quality of life (QoL), and employment. Correlations were analysed using the Pearson coefficients while different subgroups were compared by t-test for independent samples or ANOVAs. Multivariable logistic regression analysis was conducted to find predictors of inactivity. RESULTS: We enrolled 511 subjects (71% males, mean age 63 ± 10.8 years). One hundred and ninety-three patients reported high level of physical activity, 197 a minimal activity and 121 declared insufficient activity. Among these latter, 29 subjects were totally inactive. Considering the 482 LT recipients performing some kind of physical activity, almost all reported a low-quality, non-structured activity. At multivariate analysis, time from LT (odds ratio 0.94, 95% CI 0.89-0.99, p = 0.017), sedentary lifestyle (odds ratio 0.99, 95% CI 0.19-0.81, p = 0.012), low adherence to MD (odds ratio 1.22, 95% CI 1.01-1.48, p = 0.049), and low level of QoL (physical dimension) (odds ratio 1.13, 95% CI 1.08-1.17, p < 0.001), were independently associated with total inactivity. CONCLUSION: A large portion of LT recipients report an insufficient level of physical activity or are wholly inactive. Inactivity increases with time from LT and was strongly associated with suboptimal diet and low QoL.


Assuntos
Dieta Mediterrânea , Transplante de Fígado , Masculino , Humanos , Pessoa de Meia-Idade , Idoso , Feminino , Qualidade de Vida , Exercício Físico , Inquéritos e Questionários
12.
J Sports Med Phys Fitness ; 64(10): 1107-1113, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-38965895

RESUMO

The bicuspid aortic valve (BAV) is the most common congenital heart defect among adults, often leading to severe valve dysfunction and aortic complications. Despite its clinical significance, uncertainties persist regarding the impact of sports participation on the natural course of BAV disease. The SPREAD (Sport PRactice and its Effects on Bicuspid Aortic valve Disease) study is a multicenter and multinational project designed to investigate this relationship. This paper outlines the study's design, and objectives. The study is divided into two phases; phase one involves a cross-sectional analysis comparing aortic dimensions and valve function among competitive athletes with BAV, athletes with tricuspid aortic valves (TAV), and sedentary individuals with BAV. The second phase is a prospective, longitudinal follow-up aiming to evaluate the impact of regular sports training on disease progression. The SPREAD study seeks to provide evidence-based insights into the effects of sports participation on BAV disease progression, guiding clinical decision-making regarding sports eligibility and risk stratification for individuals with BAV.


Assuntos
Valva Aórtica , Doença da Válvula Aórtica Bicúspide , Humanos , Doença da Válvula Aórtica Bicúspide/fisiopatologia , Doença da Válvula Aórtica Bicúspide/complicações , Estudos Transversais , Estudos Prospectivos , Valva Aórtica/anormalidades , Adulto , Progressão da Doença , Masculino , Esportes/fisiologia , Aorta/fisiopatologia , Feminino , Atletas , Projetos de Pesquisa , Doenças das Valvas Cardíacas/fisiopatologia , Estudos Longitudinais
13.
Res Pract Thromb Haemost ; 8(6): 102555, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39309232

RESUMO

Background: Cardiovascular events represent a major cause of non-graft-related death after liver transplant. Evidence suggest that chronic inflammation associated with a remarkable oxidative stress in the presence of endothelial dysfunction and procoagulant environment plays a major role in the promotion of thrombosis. However, the underlying molecular mechanisms are not completely understood. Objectives: In order to elucidate the mechanisms of posttransplant thrombosis, the aim of the present study was to investigate the role of oxidation-induced structural and functional fibrinogen modifications in liver transplant recipients. Methods: A case-control study was conducted on 40 clinically stable liver transplant recipients and 40 age-matched, sex-matched, and risk factor-matched controls. Leukocyte reactive oxygen species (ROS) production, lipid peroxidation, glutathione content, plasma antioxidant capacity, fibrinogen oxidation, and fibrinogen structural and functional features were compared between patients and controls. Results: Patients displayed enhanced leukocyte ROS production and an increased plasma lipid peroxidation with a reduced total antioxidant capacity compared with controls. This systemic oxidative stress was associated with fibrinogen oxidation with fibrinogen structural alterations. Thrombin-catalyzed fibrin polymerization and fibrin resistance to plasmin-induced lysis were significantly altered in patients compared with controls. Moreover, steatotic graft and smoking habit were associated with high fibrin degradation rate. Conclusion: ROS-induced fibrinogen structural changes might increase the risk of thrombosis in liver transplant recipients.

14.
J Sci Med Sport ; 26(1): 3-7, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36379874

RESUMO

OBJECTIVES: Assessing the systolic and diastolic blood pressure during acute physical exertion can allow the discovery of many cardiovascular diseases even at a young age. However, this response depends on the age, sex of the subject, and the modality of the graded exercise test. This study aims to provide sex-and age-related normative values of peak and recovery blood pressure performance and to develop a predicted model of systolic and diastolic blood pressure peak in young athletes. DESIGN: Retrospective-study. METHODS: We analyzed 8224 young athletes (5516 males and 2708 females) aged between 8 and 18. Anthropometric and blood pressure parameters related to the effort are reported. Then, according to sex, graded exercise test modality, and age were calculated 1) the fifth, tenth, fiftieth, ninetieth, and ninety-fifth percentiles for the systolic and diastolic blood pressure at peak and after 1 min of recovery and 2) predictive equations of systolic and diastolic blood pressure at the peak. RESULTS: Younger athletes show lower peak blood pressure values, gradually increasing as they age. Males showed higher peak systolic blood pressure values starting at 12-13 years on the cycle ergometer and 10-11 years on the treadmill, while there was no difference in peak diastolic blood pressure values. CONCLUSIONS: Sex, age, and the specificity of the movement performed must be considered in assessing the blood pressure response in the young population. In addition, providing reference values and predictive equations of blood pressure response to acute physical exertion may allow for a better functional assessment of young athletes.


Assuntos
Teste de Esforço , Exercício Físico , Masculino , Feminino , Humanos , Criança , Adolescente , Pressão Sanguínea/fisiologia , Estudos Retrospectivos , Exercício Físico/fisiologia , Atletas
15.
Eur J Sport Sci ; 23(7): 1186-1193, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35658815

RESUMO

The assessment of the chronotropic response during acute physical exertion can allow the discovery of many cardiovascular diseases even at a young age. However, the increase in heart rate (HR) depends on the age and sex of the subject and the modality of the graded exercise test. This study aims to provide sex- and age-related normative values for heart rate performance in young athletes aged 10-18. A retrospective study was carried out on 7896 young athletes (5356 males and 2540 females) aged between 10 and 18 who underwent pre-participation screening to obtain eligibility for competitive sport. First, anthropometric parameters, performance data, and HR are reported. Thus, each age calculated third, tenth, twenty-fifth, fiftieth, seventy-fifth, ninetieth, and ninety-seventh percentiles for the stage-by-stage HR response, according to sex and graded exercise test modality category. Young female athletes of all ages showed lower performance with fewer stages performed on the cycle ergometer and the treadmill. Young male athletes on treadmill and cycle ergometers show lower HR values at submaximal intensities. The treadmill allows a longer duration than the cycle ergometer for males and females. Sex, age, and the specificity of the movement performed must be considered in assessing the chronotropic response in the young population, particularly for those who carry out a training program. In addition, providing reference values of HR response to acute physical exertion may allow for a better functional assessment of the young athletes.HighlightsGrowth and physical training induce continuous changes in the cardiovascular system. However, each young athlete shows individual features. The chronotropic response to incremental load is a common method for assessing health and fitness.Comparing the heart rate data obtained from the incremental effort with the reference percentiles can provide information in a short time in the evaluation of young athletes and the general youth population. Therefore, this methodology is regularly performed in the evaluation of anthropometric growth.In evaluating the chronotropic response to physical exertion, in addition to age and sex, should take the specificity of the movement performed during the test into account.


Assuntos
Exercício Físico , Esportes , Adolescente , Humanos , Masculino , Feminino , Criança , Frequência Cardíaca/fisiologia , Estudos Retrospectivos , Exercício Físico/fisiologia , Atletas , Teste de Esforço/métodos
16.
J Clin Med ; 12(13)2023 Jul 06.
Artigo em Inglês | MEDLINE | ID: mdl-37445556

RESUMO

BACKGROUND: Cardiovascular diseases in the context of renal and liver transplants remain the leading cause of morbidity and mortality. Physical exercise at a moderate intensity is allowed to contrast the risk profile. Echocardiographic evaluation is essential to stratifying potential cardiotoxicity by the standard and, more recently, the deformation and dynamic study of the intracardiac vortex. This study aims to investigate the vortex echo parameters of solid-organ-transplanted subjects who are physically active compared to a control group of healthy subjects. METHODS: A group of 33 transplanted subjects (16 kidneys and 17 livers) was studied via a transthoracic echocardiography exam, comprehending the myocardial deformation parameters of global longitudinal strain (GLS), twisting of the left ventricle (LV) chamber, and HyperDoppler image acquisition. RESULTS: The subjects enrolled in this study were 50 in total: there were 33 transplanted and 17 healthy subjects. The transplanted subjects presented higher values of interventricular septum in diastole (IVSd p = 0.001), posterior wall diastolic (PWd p = 0.05), and left ventricle mass index (LVMI p = 0.029); ejection fraction (EF) was found to be higher in athletes (p < 0.001). Transplanted subjects presented mild diastolic dysfunction, emerging only from septal E values (p = 0.001). The 4DStrain (p = 0.018) and GLS2c (p = 0.017) were significantly better in the athletes. All of the geometrical and energetical vortex data were in the normal range and no significant differences were found. An interesting positive correlation was evident for the diastolic parameter, particularly the E/A ratio (p = 0.023) and E' septal value (p = 0.049), along with the vorticity fluctuation. This behavior was present for all subjects, particularly those that were transplanted (p = 0.005). CONCLUSIONS: In the vortex investigation, especially in cases of normal EF, the positive correlation of some diastolic parameters with the flow dynamic patterns corroborates this hypothesis. The HyperDoppler analysis could be helpful to detecting potential damage earlier in the diastolic time before a systolic deficiency.

17.
Artigo em Inglês | MEDLINE | ID: mdl-36673912

RESUMO

There are marked differences in the regional distribution of childhood obesity in Italy. This study sought to investigate the interaction between geographical areas and family environment of dietary habits, physical activity, nutritional knowledge and obesity of adolescents. A cross-sectional study was conducted on 426 school-aged children and 298 parents residing in Central Italy (Florence, Tuscany) and Southern Italy (Corigliano, Calabria), in 2021. Survey questionnaire investigated anthropometry, eating behavior, nutritional knowledge and physical activity. BMI was determined and compared with reference percentile charts for adolescents. Multivariate regression analyses showed that: (1) an adolescent's BMI was directly influenced by their parents' BMI independently of parental nutritional knowledge and dietary or physical activity habits; (2) parents transmitted eating or physical activity habits to their children; (3) the geographic region of residence is not in itself an independent determinant of children's BMI. The clear message is that prevention of childhood obesity should consider family-based approaches. Parental obesity can be the point of convergence of the complex interactions between a parent's and child's habits and should be one of the most important factors to look for.


Assuntos
Obesidade Infantil , Adolescente , Criança , Humanos , Obesidade Infantil/epidemiologia , Estudos Transversais , Comportamento Alimentar , Dieta , Exercício Físico , Inquéritos e Questionários
18.
Children (Basel) ; 10(3)2023 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-36980084

RESUMO

Hutchinson-Gilford progeria syndrome is an extremely rare genetic disease caused by a de novo mutation in the LMNA gene, leading to an accumulation of a form of Lamin A, called Progerin, which results in a typical phenotype and a marked decrease in life expectancy, due to early atherosclerosis and cardiovascular disease. We report the case of a fourteen-year-old Chinese boy with Hutchinson-Gilford progeria syndrome admitted to the emergency room because of precordial pain. Physical examination showed tachycardia 130 beats/min and arterial hypertension: 170/120 mmHg, normal respiratory rate, no neurological impairment; ECG evidenced sinus tachycardia, left ventricular hypertrophy, horizontal ST-segment depression in I, aVL, II, III, aVF leads, and V4-V6 and ST-segment elevation in aVR and V1 leads. Echocardiography highlighted preserved global left ventricular function with concentric hypertrophy, altered diastolic flow pattern, mitral valve insufficiency, and minimal aortic regurgitation. Blood tests evidenced an increase in high-sensitivity troponin T level (335 pg/mL). NSTEMI diagnosis was performed, and the patient was admitted to the intensive care unit. A coronary CT angiography showed a severe obstruction of the common trunk of the left coronary artery, for which an urgent percutaneous coronary intervention (PCI) was proposed. A selective coronary angiography imaged complete chronic occlusion of the left main coronary artery as well as severe stenosis at the origin of a very enlarged right coronary artery that vascularized the left coronary artery through collaterals. Afterwards, the right coronary artery was probed using an Amplatz right (AR1) guiding catheter, through which a large 3.5 mm drug-eluting coronary stent (Xience Sierra, Abbott, Abbott Park, IL, USA) was implanted. At the end of the procedure, no residual stenosis was imaged and improved vascularization of the left coronary artery distribution segments was observed. Dual antiplatelet therapy (DAPT) consisting of aspirin (75 mg daily) and clopidogrel (37.5 mg daily) and anti-hypertensive therapy were started. At the one-year follow-up, the patient had not reported any occurrence of anginal chest pain.

19.
Artigo em Inglês | MEDLINE | ID: mdl-35805354

RESUMO

Sports medicine is often involved in the evaluation of a wide population composed by active or less active individuals [...].


Assuntos
Medicina Esportiva , Ecocardiografia , Humanos
20.
J Sports Med Phys Fitness ; 62(12): 1748-1753, 2022 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-35191285

RESUMO

BACKGROUND: Fragmented QRS (fQRS), is a marker of intraventricular conduction delay. No sufficient data are available regarding the presence in different sports disciplines. The present study aims to evaluate the frequency of fQRS in athletes and the morphological myocardial associated pattern. METHODS: This retrospective study of 5 years, involved 605 subjects and evaluated for the eligibility in competitive sport activity. A sample of 100 subjects for 6 kinds of sport was considered. Fragmented QRS was defined as the presence, during a resting ECG, of various RSR' patterns in at least two contiguous leads. All subjects had an echocardiographic examination. RESULTS: fQRS was found in 47 athletes of the 605 subjects. fQRS+ subjects were older than fQRS- (33.17 vs. 24.12 P<0.001) and were predominantly male (89.4% vs. 10,6% P=0.007). The presence of fQRS had a different prevalence among sports. Fragmented QRS was independently associated with age (OR=1.026, 95% CI 1.006-1.047; P=0.010), sex (OR=0.354, 95% CI 0.133-0.943; P=0.038), left ventricle cardiac mass index values (OR=1.017, 95% CI 1.001-1.033; P=0.033) and E peak (OR=0.979, 0.959-0.999; P=0.043) in multivariate analysis. CONCLUSIONS: The prevalence of fQRS in sport disciplines appears to be around 13% to 2% with major evidence among older male subjects. Despite the presence of physiological hypertrophy in athletes, no significant influence was found regarding the type of sport practiced on the prevalence of fQRS. A larger investigation will be necessary to validate this first hypothesis.


Assuntos
Ecocardiografia , Eletrocardiografia , Humanos , Masculino , Feminino , Projetos Piloto , Estudos Retrospectivos , Débito Cardíaco
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