Background: The exhaustive series of tests undergone by young athletes of Olympic rowing prior to important competitions imply loads of physical stress that can ultimately impact on mood and motivation, with negative consequences for their training and performance. Thus, it is necessary to develop a tool that uses only the performance of short distances but is highly predictive, offering a time expectancy with high reliability. Such a test must use variables that are easy to collect with high practical applicability in the daily routine of coaches. Objective: The objective of the present study was to develop a mathematical model capable of predicting 2000 m rowing performance from a maximum effort 100 m indoor rowing ergometer (IRE) test in young rowers. Methods: The sample consisted of 12 male rowing athletes in the junior category (15.9 ± 1.0 years). A 100 m time trial was performed on the IRE, followed by a 2000 m time trial 24-h later. Results: The 2000 m mathematical model to predict performance in minutes based on the maximum 100 m test demonstrated a high correlation (r = 0.734; p = 0.006), strong reliability index (ICC: 0.978; IC95%: [0.960; 0.980]; p = 0.001) and was within usable agreement limits (Bland -Altman Agreement: −0.60 to 0.60; 95% CI [−0.65; 0.67]). Conclusion: The mathematical model developed to predict 2000 m performance is effective and has a statistically significant reliability index while being easy to implement with low cost.

Exercise, including resistance exercise with high loads, has positive hemodynamic responses such as reduced systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), Pressure Product Rate (PPR), and estimated myocardial oxygen volume (MVO₂). Caffeine (CA), used to improve performance, tends to interfere with BP and HR. This study aimed to analyze the effects of CA supplementation on hemodynamic indicators in Paralympic weightlifting (PP). The exercise was performed on 14 male athletes (32.4 ± 8.5 years; 81.7 ± 21.9 kg) for three weeks. Two conditions were evaluated: supplementation with CA Anhydrous 9 mg/kg and with placebo (PL). The adapted bench press was used, with 5 × 5 at 80% 1RM. We evaluated BP, HR, PPR, and MVO₂, before, after, 5, 10, 20, 30, 40, 50, 60 min, and 24 h later. The CA presented higher absolute values in the pressure indicators than the PL, and after 24 h there was an inversion. The HR was higher in the CA and showed a reduction after 10 min. The PPR and MVO₂ in the CA presented absolute values greater than the PL, and 24 h later there was an inversion. There was no hypotensive effect, but the use of CA did not present risks related to PPR and MVO₂, demonstrating the safe use of this supplement in adapted strength sports.

Introdução: A obesidade é definida pela Organização Mundial da Saúde (OMS) como um Índice de Massa Corpórea (IMC) ≥ 30 kg/m², de etiologia multifatorial decorrente de um estilo de vida sedentário e de fatores poligenéticos. O peso corporal acima dos valores ideais, independentemente da presença de obesidade ou sobrepeso, é fator de risco isolado para a hipertensão arterial sistêmica (HAS). A HAS por sua vez, é uma condição crônica sintomática, caracterizada pela elevação persistente da pressão arterial sistólica (PAS) maior ou igual a 140 mmHg e/ou pressão arterial diastólica (PAD) maior ou igual a 90 mmHg, aferida em pelo menos duas ocasiões distintas e sem uso de medicação anti-hipertensiva. Objetivo: Correlacionar indicadores antropométricos de obesidade com os níveis pressóricos. Métodos: Estudo clínico, transversal, com abordagem analítica quantitativa. Aprovado pelo Comitê de Ética e Pesquisa através do parecer 2.061.044 e realizado no período de outubro de 2019 a janeiro de 2021, em uma clínica de Aracaju-SE. Resultados: Foram avaliadas 277 pessoas com idade mínima de 14 anos e máxima de 89 anos, apresentando uma idade média de 45,2 anos. O IMC médio foi de 27,8 kg/m². Em relação a circunferência da cintura (CC) a média foi de 91,0 cm. Quando avaliada a relação cintura-quadril (RCQ) a média foi de 0,90 (± 0,0985). A pressão arterial sistólica variou entre 90 e 220 mmHg, apresentando uma média de 128,8 mmHg (± 18,9) e a pressão arterial diastólica teve média de 84,9 mmHg (± 13,0), variando entre 60 e 160 mmHg. Observou-se a existência de uma correlação positiva entre dados antropométricos e as pressões arteriais (IMC com PAS e PAD; CC com PAS e PAD e RCQ com PAS e PAD), demonstrando assim que quanto maiores os dados antropométricos maiores foram as pressões arteriais. Contudo, apesar de todas as correlações terem sido estatisticamente significativas, a mais forte foi a da CC com a PAS. Conclusão: Os dados antropométricos, o IMC, CC e RCQ, mostraram correlação positiva com níveis pressóricos mais elevados em pacientes adultos com obesidade.

Introduction: The aim of this study was to evaluate whether a single session of high-intensity interval training (HIIT) would promote a hypotensive effect and cardiovascular risk in hypertensive women, in addition to increasing the bioavailability of nitric oxide. Methods: The sample consisted of 10 hypertensive women (63.7 ± 10.34 years; 66 ± 7.67 kg and 153.7 ± 9.08 cm) and the training load was established at 60% of the maximum aerobic speed. Results: We observed a very high hypotensive effect between the interaction moments during the intervention (Int. Pre: 122.40 ± 18.58; Int. Post: 143.00 ± 24.90; Int. Post 60min: 121.40 ± 13.87; p<0.001, η2P = 0.569). No cardiovascular risk was observed during the intervention (DP = Int. Pre: 9138.20 ± 1805.34; Int. Post: 14849.70 ± 3387.94; Int. Post 60min: 9615.90 ± 1124.41, p< 0.001, η2P = 0.739) and there was no increase in the bioavailability of nitric oxide. Conclusion: In conclusion, this work reveals that an HIIT session is capable of generating a hypotensive effect while not posing cardiovascular risk in hypertensive women. Level of evidence I; High-quality randomized clinical trial with or without statistically significant difference, but with narrow confidence intervals .

Background: Paralympic powerlifting (PP) is one of the sports modalities that uses strength training with high loads, causing various physiological responses resulting from hemodynamic adaptations. Objective: To evaluate hemodynamic responses after traditional (TT) and eccentric (ET) training sessions in PP athletes. Methods: Twelve national-level PP athletes, aged: (Mean ± SD) 30.8 ± 10.05 years; 70.0 ± 16.1 kg. In the intervention, five sets of five repetitions (5 × 5) of the bench press at 80% of 1 repetition maximum (1RM) were used; in the TT and in the ET, 5 × 5 of the bench press with a load in the eccentric phase of 110% and that in the concentric phase of 80% of 1RM were used. Results: Compared to baseline, heart rate was significantly elevated at various times in the ET, between before and 20 min after (p = 0.023), and 40 min after (p = 0.035), but decreased to baseline in 24 h (p = 0.043, η2p = 0.395). In addition, the product pressure rate in the ET had a decrease between the moments before and 60 min after (p = 0.042), and before and 24 h after (p = 0.043). A high effect on myocardial oxygen volume in ET at 24 h was found (p = 0.018; η2p = 0.393). Conclusions: One session of traditional and eccentric training methods can be effective in causing significant changes in the cardiovascular system in PP athletes.

INTRODUCTION:The term sarcopenic obesity means the co-presence of obesity and sarcopenia. The complex interaction of common pathophysiological mechanisms marks the close relationship between these two conditions. Sarcopenia reduces physical activity, which leads to decreased energy expenditure and increases the risk of obesity. In contrast, an increase in visceral fat induces inflammation, which contributes to the development of sarcopenia. The aim of this study was to evaluate the correlation between sarcopenia and obesity using data obtained from patients at a private clinic in Aracaju, in the state of Sergipe. METHODS: Clinical, cross-sectional, descriptive study with a quantitative analytical approach. Data were collected between November 2021 and March 2022. The following variables were analyzed: BMI, waist-to-hip ratio, subcutaneous fat measurement, intra-abdominal fat measurement, Elbow flexion strength and Knee extension strength. This project was approved by the Research Ethics Committee of Universidade Tiradentes (Aracaju-SE) under opinion 2,795,512. In all hypothesis tests performed, the conclusion was obtained through the interpretation of the P-value, adopting a significance level P-value < 0.05. The software used was R, version 4.0.4.RESULTS:A total of 79 people aged between 16 and 70 years old were evaluated. There was no statistically significant correlation between biceps (elbow flexion) and hamstring (knee extension) strength with BMI, hip circumference, waist/hip ratio, intra-abdominal fat and subcutaneous fat. Regarding Waist Circumference, there was a statistically significant correlation with biceps strength, which showed direct proportionality between both. CONCLUSIONS: There was no statistically significant association between obesity and biceps and hamstring strength, except for that found between Waist Circumference and biceps strength. Based on this outcome, further studies must be encouraged to assess obesity in the sarcopenic population in relation to the healthy population.