Abstract The aim of this study was to evaluate the VO2max using a previously validated indirect test for non-expert adult swimmers and to verify its connection with the 400 meters freestyle test. A total of 17 non-expert male swimmers (21.5 ± 3.12 years) were evaluated. Body composition measurements included body weight (74 ± 9.41 kg), height (172.9 ± 5.21 cm) and body fat percentage (15.2 ± 4.15 %). Two tests were conducted on different days; the 400 meters freestyle (400 MF) and the Progressive Swim Test (PSwT), respectively. The participant's heart rate frequency before and after the test (BHR and AHR) was analyzed, as well as the subjective perception of effort (RPE), the number of laps covered (NLP), and the time of test execution measured in minutes. Significant differences were identified in all variables (p < 0.05) with the exception of BHR. An inverse correlation (r > - 0.60) was found between AHR and execution time (r > - 0.70), as well as between the VO2max estimated by the PSwT and the 400 MF performance test (r > - 0.70). The Bland-Altman Plot showed that the values discovered were within the established concordance limits of 95% (±1.96 SD). A negative correlation between a swimming test and a test that estimates the VO2max occurred, and the PSwT showed results of greater approximation of the aerobic power of non-expert swimmers. In conclusion, the PSwT is applicable for non-expert adult swimmers.

Resumo Introdução: Tai-Chi-Chuan e Yoga vem se tornando práticas populares. No entanto não está claro os efeitos cardiovasculares e se apresentam comportamento similar às sessões aeróbicas e resistidas. Objetivo: Avaliar as respostas cardiovasculares durante a sessão e hipotensão pós-exercício (HPE) de Tai Chi Chuan (TS) e Yoga (YS) comparando com sessões aeróbica (AS) e resistida (RS). Métodos: Catorze mulheres jovens (22,3±2 anos), aparentemente saudáveisrealizaram quatro sessões (AS, RS, TS e YS). A freqüência cardíaca (FC), pressão arterial sistólica (PAS) e diastólica (PAD) foram mensurados em repouso, durante (a cada 10 minutos) e até 50 minutos de recuperação. Resultados: AS, RS, TS e YS mostrou aumento significativo na FC em relação ao repouso. AS aos 10, 30 e 50 minutos em relação a RS, TS e YS. RS em relação a TS e YS aos 10, 30 e 50 minutos. Não houve diferença significativa entre TS e YS. PAS foi significativamente maior em AS, RS, TS e YS aos 10, 30 e 50 minutos durante a sessão em relação ao repouso. AS foi significativamente maior que RS aos 30 e 50 minutos e maior que TS e YS em 10, 30 e 50 minutos. Não houve diferença significativa na PAD. Para HPE AS, RS e TS reduziram significativamente aos 10, 30 e 50 minutos. YS reduziu aos 50 minutos. Sem diferença na HPE diastólica. Conclusão: TS e YS mostrou-se alternativa segura de exercítação em adultas jovens normotensas, apesar de ter valores mais baixos, promovem comportamento hemodinâmico semelhante ao AS e RS.

Abstract Introduction: Tai-Chi-Chuan and Yoga have becoming popular practices. However is unclear the cardiovascular effects, and if they present similar behavior to aerobic and resistance sessions. Objective: To evaluate the cardiovascular responses during the session and post-exercise hypotension (PEH) of Tai Chi Chuan (TS) and Yoga (YS) in comparison to aerobic (AS) and resistance (SR) exercises. Methods: Fourteen young women (22.3 ± 2 years) apparently healthy performed four sessions (AS, RS, TS and YS). The heart rate (HR), systolic (SBP) and diastolic blood pressure (DBP) were recorded at resting, during (every 10 minutes) and until 50 minutes of recovery. Results: AS, RS, TS e YS showed significant increase in HR compared to resting.AS at 10, 30 e 50 minutes in relation to RS, TS e YS. The RS in relation to TS and YS at 10, 30 and 50 minutes. No significant difference between TS and YS. SBP was significantly increased in AS, RS, TS e YS at 10, 30 e 50 minutes during the session, in relation to rest. AS was significantly higher at 30 e 50 minutes than RS and higher than TS and YS at 10, 30 e 50 minutes. No significant difference in DBP. For PEH, AS, RS and TS significantly reduced at 10, 30 and 50 minutes. YS reduced at 50 minutes. No significant diastolic PEH. Conclusion: TS and YS showed as safe alternatives of exercising in the normotensive young adult woman, despite having lower values, they promote similar hemodynamic behavior to AS and RS.

RESUMOUma sessão de circuito é constituída por exercícios resistidos e aeróbios, intercalados. Entretanto, não há consenso quanto a sua capacidade hipotensora. Este estudo teve como objetivo comparar a resposta da pressão arterial após uma sessão de circuito de praia com sessões de exercícios aeróbico e resistido. Foram sujeitos do estudo 15 adultos jovens do sexo masculino realizaram três sessões de exercício e uma sessão controle. Como resultados foi verificado hipotensão sistólica significativa em relação ao repouso, aos 10, 20, 30 e 40 minutos para as sessões aeróbia e de circuito na praia e aos 20, 30 e 40 minutos para sessão de resistido, com as maiores reduções em torno de 14 ± 5, 10 ± 3 e de 8 ± 3 mmHg, respectivamente. Sem diferenças significativas entre as sessões. Não foram encontradas diferenças significativas na hipotensão diastólica Concluiu-se que a sessão circuito de praia apresenta semelhante hipotensão pós exercício (HPE) quando comparado às sessões de exercícios aeróbico e de resistido.

ABSTRACTA session of circuit training consists of resistive and aerobic exercises, interleaved. However, there is no consensus about the hypotensive capacity. The main purpose were to compare the blood pressure response after a beach circuit session among aerobic and resistance exercise sessions. As methodology fifteen young adult males performed three exercise sessions and a control session. The results showed that it was verified significantly systolic hypotension in relation to rest at 10, 20, 30 and 40 minutes for aerobic session and beach circuit session, and resistance session reduced at 20, 30 and 40 minutes with the highest reductions around 14 ± 5, 10 ± 3 and 8 ± 3 mmHg, respectively. With no difference between the sessions. There weren't significant reductions in diastolic hypotension. In conclusion the beach circuit session shows similar hypotension post exercise (HPE) when compared to aerobic and resistance session.