Associação entre a espessura de músculos laterais do abdômen, resistência muscular e o valgo dinâmico do joelho durante o agachamento unipodal : diferença entre os sexos

O excessivo valgo dinâmico do joelho parece apresentar relação com várias lesões no membro inferior. Alterações no complexo tronco-pelve-quadril têm sido apontadas como um dos mecanismos proximais relacionados ao excessivo valgo dinâmico do joelho. Uma das alterações mecânicas observadas é o aumento na inclinação lateral do tronco durante atividades unilaterais. Alterações nos músculos laterais do tronco, em especial o oblíquo externo, o oblíquo interno e transverso do abdome, podem levar a uma redução do controle do tronco durante atividades funcionais. No entanto, a relação entre parâmetros morfológicos e funcionais dos músculos laterais do abdômen e a presença de valgo dinâmico em homens e mulheres não estão claros. O objetivo do estudo foi verificar a associação entre a espessura e resistência dos músculos laterais do abdômen com o valgo dinâmico do joelho durante a realização do agachamento unipodal em homens e mulheres saudáveis. Quarenta e seis participantes (n = 27 homens; n = 19 mulheres) foram submetidos à seguintes avaliações: (i) espessura de músculos laterais do abdômen (ΣEMFLT) [oblíquo externo + oblíquo interno + transverso do abdome]; (ii) ângulo de projeção no plano frontal (APPF) do joelho durante o agachamento unipodal e (iii) resistência dos flexores laterais durante o teste de prancha lateral. Não observamos associação significativa do APPF do joelho com a ΣEMFLT (homens: r=0.120, p=0.954; mulheres: r=0.223, p=0.358) e com o tempo de prancha lateral (homens: r=0.087, p=0.667; mulheres: r=0.319, p=0.184). Também não observamos associação entre a ΣEMFLT e o tempo de prancha lateral em homens (r=-0.285; p=0.149), porém observamos associação moderada, positiva e significativa em mulheres (r=0.530; p=0.020). Ainda, foi realizada uma correlação parcial usando o IMC como variável controle nas medidas envolvendo a ΣEMFLT, onde foi encontrado o mesmo comportamento. Portanto, tais resultados, podem indicar que a prescrição de exercício pode ser diferente entre homens e mulheres visando uma melhora (i.e. diminuição) do valgo dinâmico a partir do fortalecimento dos músculos laterais do abdômen e, consequentemente, diminuindo o risco de lesões em membros inferiores.Excessive dynamic knee valgus and its implications for different lower limb injuries are already widely found in the literature. Its association with the thickness and resistance of the lateral abdomen muscles and how it can influence the presence of dynamic valgus in men and women still needs further studies. The objective of the study was to verify the association between the thickness and neuromuscular resistance of the lateral abdomen muscles with the dynamic valgus of the knee during the performance of single leg squat in healthy men and women, in addition to verifying whether the thickness of the lateral abdomen flexors is associated with lateral plank test for both sexes. Forty-six participants (n = 27 men; n = 19 women) underwent the following assessments: (i) thickness of the lateral flexor muscles of the abdomen (ΣEMFLT) [external oblique + internal oblique + transverse abdomen]; (ii) angle of projection in the frontal plane (FPPA) of the knee during the single leg squat and (iii) resistance of the lateral abdomen flexors during the lateral plank test. We did not observe a significant association between the FPPA of the knee and the ΣEMFLT (men: r = 0.120, p = 0.954; women: r = 0.223, p = 0.358) and with the time on the side plank (men: r = 0.087, p = 0.667; women: r = 0.319, p = 0.184). We did not observe a significant association between the APPF of the knee and the ΣEMFLT (men: r = 0.120, p = 0.954; women: r = 0.223, p = 0.358) and with the time on the side plank (men: r = 0.087, p = 0.667; women: r = 0.319, p = 0.184). We also did not observe an association between ΣEMFLT and side plank time in men (r = -0.285; p = 0.149), but we observed a moderate, positive and significant association in women (r = 0.530; p = 0.020). In addition, a partial correlation was performed using the BMI as a control variable in the measurements involving the ΣEMFLT, where the same behavior was found. With the results found, we can think of different training prescriptions for men and women, aiming at an improvement of the dynamic valgus from the strengthening of the lateral abdominal muscles and, consequently, decreasing the risk of injuries in the lower limbs

Motivação à prática do treinamento funcional : uma revisão de literatura

O presente estudo busca explorar e relacionar alguns aspectos que estão associados com a motivação à pratica de atividades físicas e esportivas e treinamento funcional. O objetivo central da pesquisa foi de investigar, de maneira mais profunda, o conhecimento acerca dos aspectos motivacionais que estão associados à prática do treinamento funcional. Para tanto, foi realizada uma revisão da literatura existente sobre o treinamento físico, treinamento funcional e motivação. Conhecer a hierarquia e o perfil de motivos pelos quais os alunos possam querer participar de uma determinada prática corporal são informações importantes para que o professor possa mantê-los engajados na sua prática. As dimensões motivacionais “Controle de Estresse, Saúde, Sociabilidade, Competitividade, Estética e Prazer” foram encontradas como o conjunto de fatores que engloba a maior parte dos motivos que podem levar uma pessoa à prática de um determinado exercício físico, não sendo os únicos.The present study intends to explore and relate some aspects that are associated with the motivation to the practice of physical and sports activities and functional training. The main objective of the research was to investigate, in a deeper way, the knowledge about the motivational aspects that are associated to the practice of functional training. Therefore, a review of the existing literature on physical training, functional training and motivation was carried out. Knowing the hierarchy and the profile of reasons why people may want to participate in a particular body practice are important information so that the teacher can keep them engaged in their practice. The motivational dimensions of “Stress Control, Health, Sociability, Competitiveness, Aesthetics and Pleasure” were found as the set of factors that encompass most of the reasons that can lead a person to the practice of a certain physical exercise, not being the only ones

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection

Motivação à prática do treinamento funcional : uma revisão de literatura

O presente estudo busca explorar e relacionar alguns aspectos que estão associados com a motivação à pratica de atividades físicas e esportivas e treinamento funcional. O objetivo central da pesquisa foi de investigar, de maneira mais profunda, o conhecimento acerca dos aspectos motivacionais que estão associados à prática do treinamento funcional. Para tanto, foi realizada uma revisão da literatura existente sobre o treinamento físico, treinamento funcional e motivação. Conhecer a hierarquia e o perfil de motivos pelos quais os alunos possam querer participar de uma determinada prática corporal são informações importantes para que o professor possa mantê-los engajados na sua prática. As dimensões motivacionais “Controle de Estresse, Saúde, Sociabilidade, Competitividade, Estética e Prazer” foram encontradas como o conjunto de fatores que engloba a maior parte dos motivos que podem levar uma pessoa à prática de um determinado exercício físico, não sendo os únicos.The present study intends to explore and relate some aspects that are associated with the motivation to the practice of physical and sports activities and functional training. The main objective of the research was to investigate, in a deeper way, the knowledge about the motivational aspects that are associated to the practice of functional training. Therefore, a review of the existing literature on physical training, functional training and motivation was carried out. Knowing the hierarchy and the profile of reasons why people may want to participate in a particular body practice are important information so that the teacher can keep them engaged in their practice. The motivational dimensions of “Stress Control, Health, Sociability, Competitiveness, Aesthetics and Pleasure” were found as the set of factors that encompass most of the reasons that can lead a person to the practice of a certain physical exercise, not being the only ones

Common bean yield responses to nitrogen fertilization in Brazilian no-till soils: A meta-analysis

Texto completoAlthough numerous studies have been conducted with common bean regarding nitrogen (N) dose, time of application, and source in no-till (NT) soils in Brazil, the heterogeneity of the results makes it difficult to establish technical recommendations based on individualized studies. This meta-analysis aimed to rank the main factors influencing common bean response to N management in NT areas. The database consisted of 99 scientific papers that encompassed 160 trials and 2394 observations. In general, the probability of obtaining a positive response to N application in common bean productivity was 77 %, with an average 18 % increment (358 kg ha -1 ). The main factors that affect the response of common bean grain yield to N fertilization and the choice of the applied N dose are soil organic matter (OM) content and the preceding crop. In soils with OM content >20 g kg -1 , the N dose that determines the highest economic return is 50 kg ha -1 . For soils with OM content 100 kg ha -1 ), inoculating common bean seeds increased grain yields by 6 % on average (118 kg ha -1 ). The combined analysis of the available results demonstrated that the crop recommendations used in Brazilian soils under NT could be refined considering the soil OM concentration and preceding crop. Additionally, seed inoculation and N dose splitting in the form of common urea should be recommended

Reduction of cardiac imaging tests during the COVID-19 pandemic: The case of Italy. Findings from the IAEA Non-invasive Cardiology Protocol Survey on COVID-19 (INCAPS COVID)

Background: In early 2020, COVID-19 massively hit Italy, earlier and harder than any other European country. This caused a series of strict containment measures, aimed at blocking the spread of the pandemic. Healthcare delivery was also affected when resources were diverted towards care of COVID-19 patients, including intensive care wards. Aim of the study: The aim is assessing the impact of COVID-19 on cardiac imaging in Italy, compare to the Rest of Europe (RoE) and the World (RoW). Methods: A global survey was conducted in May–June 2020 worldwide, through a questionnaire distributed online. The survey covered three periods: March and April 2020, and March 2019. Data from 52 Italian centres, a subset of the 909 participating centres from 108 countries, were analyzed. Results: In Italy, volumes decreased by 67% in March 2020, compared to March 2019, as opposed to a significantly lower decrease (p &lt; 0.001) in RoE and RoW (41% and 40%, respectively). A further decrease from March 2020 to April 2020 summed up to 76% for the North, 77% for the Centre and 86% for the South. When compared to the RoE and RoW, this further decrease from March 2020 to April 2020 in Italy was significantly less (p = 0.005), most likely reflecting the earlier effects of the containment measures in Italy, taken earlier than anywhere else in the West. Conclusions: The COVID-19 pandemic massively hit Italy and caused a disruption of healthcare services, including cardiac imaging studies. This raises concern about the medium- and long-term consequences for the high number of patients who were denied timely diagnoses and the subsequent lifesaving therapies and procedures