Hipertrofia ventricular esquerda do atleta: resposta adaptativa fisiológica do coração

Ghorayeb, Nabil; M, Batlouni; Pinto, Ibraim Masciarelli Francisco; Dioguardi, Giuseppe S

doi:10.1590/s0066-782x2005001600008

Cited by 31 publications

(17 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The mean LV mass (LVM) indexed by BSA in the subsample of healthy individuals (20 men and 20 women, mean age = 48 yrs) was 57 and 42 g/m 2 , respectively, which are quite discordant values in comparison to the international literature [16][17][18][19] . However, these measurements are similar to the findings of Ghorayeb et al 22 , who reported a mean LVM of 57 g/m 2 in a sample of 30 normal men evaluated by CMR.…”

Section: Resultssupporting

confidence: 90%

“…Additionally, our data suggest that the values of cardiac mass measured in our population through CMR 22 can be underestimating the actual mass of the organ between 24% and 60% in comparison to the LVM estimated by CMR reported in international studies [16][17][18][19] . When we compare the mean LVM estimated by CMR with those obtained at the necropsy, this underestimation reaches even higher values.…”

mentioning

confidence: 63%

See 1 more Smart Citation

Peso dos ventrículos cardíacos determinado em necropsia de indivíduos saudáveis mortos por causas externas

Rodrigues¹,

Pimentel²,

Mill³

2007

Arq. Bras. Cardiol.

View full text Add to dashboard Cite

show abstract

Section: Resultssupporting

confidence: 90%

mentioning

confidence: 63%

Peso dos ventrículos cardíacos determinado em necropsia de indivíduos saudáveis mortos por causas externas

Rodrigues¹,

Pimentel²,

Mill³

2007

Arq. Bras. Cardiol.

View full text Add to dashboard Cite

show abstract

“…This cardiac adaptation may provide increased efficiency of the cardiovascular system, increasing the supply of oxygen to muscles during effort. 31,32 However, it can be speculated that the relative weight of the heart is higher because trained animals present a lower body mass.…”

Section: Discussionmentioning

confidence: 99%

Caffeine and physical training: effects on cardiac morphology and cardiovascular response

Ruíz¹,

Ramos

Martins‐Pinge

et al. 2014

Rev. Assoc. Med. Bras.

View full text Add to dashboard Cite

Conflict of interest: noneObjective: to analyze the morphological structure of cardiac, blood pressure (BP), heart rate (HR) and heart rate variability (HRV) of rats subjected to physical training with supplementation of caffeine. Methods: 60 rats were divided into 4 groups: control (CO), control with caffeine (CAF), trained control (TRE) and trained with caffeine (TCAF). All trained groups underwent 4 weeks of swimming, and all caffeine groups were supplemented by voluntary ingestion of caffeine diluted in drinking water. Results: there were no changes to BP and HR between groups. Regarding HRV, there was a decrease in LFnorm (low frequency) and LF/HF ratio (low and high frequency) in TCAF and CAF compared to group (p<0.02 and p<0.03, respectively). An increase occurred in CAF compared to the CO in the component LFnorm (p<0.05). The results also showed an increase in the relative weight of heart in the TRE (p<0.04) and TCAF (p<0.03) compared to CO. Conclusion: caffeine did not modify the hemodynamic responses. However, physical training resulted in a decrease in sympathetic response and an increase in relative heart weight.Uniterms: caffeine; exercise; arterial blood pressure; heart rate.

show abstract

“…Halle et al 20 demonstraram que quanto melhor a aptidão física e menor o índice de massa corporal, há uma tendência de que as concentrações de lipídeos sanguíneos sejam favoráveis. Pitanga 19 encontrou correlações estatisticamente significativas entre a prática de exercícios físicos e as concentrações de HDL.…”

Section: Níveisunclassified

Efeito do treinamento aquático no perfil lipídico e na hipertrofia ventricular esquerda de camundongos hiperlipidêmicos

Terra

Rosa²,

Santos³

et al. 2013

Rev Bras Ativ Fis Saude

View full text Add to dashboard Cite

ResumoO objetivo do presente estudo foi analisar os efeitos do treinamento aquático (TA) no perfil lipídico e nas estruturas ventriculares esquerdas de camundongos hiperlipidêmicos. Foram utilizados 28 camundongos LDLr-/-, machos, divididos aleatoriamente em 4 grupos: sedentários alimentados com ração padrão (C); treinados alimentados com ração padrão (C+TRE), sedentários alimentados com ração hiperlipídica (HL) e treinados alimentados com ração hiperlipídica (HL+TRE). Os animais dos grupos treinados praticaram TA em intensidade moderada, por 60 minutos durante 60 dias consecutivos. Após 48 horas do término do período de treinamento e 12 horas de jejum de repouso os animais foram eutanasiados, o sangue coletado e o soro utilizado para análises laboratoriais de triglicérides, colesterol total e suas frações (LDL, HDL, VLDL). O coração foi removido e o ventrículo esquerdo foi pesado a fresco para se calcular a proporção do peso ventricular esquerdo (mg)/ peso do animal (g). Os resultados mostraram que o TA sem cargas adicionais foi mais eficiente na melhora das concentrações plasmáticas de lipídeos quando acompanhado por uma dieta adequada, confirmando que a associação exercício físico com dieta equilibrada é essencial para obtenção de seus benefícios. O treinamento ocasionou hipertrofia ventricular esquerda excêntrica no grupo alimentado com dieta padrão e, principalmente, diminuiu o depósito de colágeno intersticial no miocárdio dos animais alimentados com dieta hiperlipídica, o que pode indicar uma melhora na função diastólica com consequente melhora da função sistólica. Concluiu-se que o treinamento aquático de intensidade leve a moderada induz adaptações benéficas e profiláticas ao coração, promovendo saúde e prevenindo doenças. Palavras-chaveHipertrofia ventricular; Natação,;Dislipidemias. AbstractThis study assessed the effects of Water training on the lipid profile and left ventricular structures in hyperlipidemic mice. Twenty-eight male LDLr-/-mice were randomly separated into 4 groups: sedentary, fed a standard diet (C); exercising, fed a standard diet (C+TRE); sedentary, fed a hyperlipidic diet (C+HL); and exercising, fed a hyperlipidic diet (E+HL). The exercising mice trained daily for 60 minutes during 60 days. After 48 hours of the end of the training period and 12 hours of rest fasting the animals were underwent euthanasia and the blood was collected for measuring the plasma levels of triglycerides, total cholesterol and its fractions (LDL, HDL, VLDL). The heart was removed and the left ventricle was weighed fresh to calculate the ratio left-ventricle weight (mg)/body weight (g). The results showed that the training was more effective in improving lipid plasma levels when combined with a balanced diet, thereby confirming that it is essential to associate physical exercise and diet. The training protocol resulted in eccentric left ventricular hypertrophy in the standard-diet group and decreased interstitial collagen deposition in the myocardium of the high-fat-diet animals, which may indicate an impro...

show abstract

Hipertrofia ventricular esquerda do atleta: resposta adaptativa fisiológica do coração

Abstract: Results allowed for concluding that LVH in marathoners in full sportive activity period, assessed by non-invasive methods, represents an adaptative response to intensive and prolonged physical training, with purely physiological characteristics.

Cited by 31 publications

References 23 publications

Peso dos ventrículos cardíacos determinado em necropsia de indivíduos saudáveis mortos por causas externas

Peso dos ventrículos cardíacos determinado em necropsia de indivíduos saudáveis mortos por causas externas

Caffeine and physical training: effects on cardiac morphology and cardiovascular response

Efeito do treinamento aquático no perfil lipídico e na hipertrofia ventricular esquerda de camundongos hiperlipidêmicos

Contact Info

Product

Resources

About