ABSTRACT Objective: To analyze the association between the time spent in sedentary behavior and physical activity of different intensities with cardiovascular health in men and women with peripheral artery disease. Methods: Two hundred and sixty patients with peripheral artery disease and claudication symptoms (65.7% men; 66±1 years; ankle brachial index 0.57±0.18) were evaluated. Physical activity and sedentary behavior were assessed using an accelerometer. Physical activity was classified into light and moderate-vigorous intensities. The cardiovascular outcomes included blood pressure (oscillometric method), cardiac autonomic modulation (heart rate variability), and arterial stiffness (pulse wave velocity). Results: Women spent more time engaged in light physical activity than men (341±14 min/day versus 306±9 min/day; p=0.040, respectively). There was no significant difference in the time spent on sedentary behavior and moderate-vigorous physical activity. Women had a higher systolic blood pressure (p=0.025), higher augmentation index (p<0.001), and lower sympathovagal balance (p=0.047) than men. Pulse wave velocity was only negatively associated with light physical activity (β= -4.66; 95%CI= -8.57; -0.76) in men. Light and moderate-vigorous physical activity and sedentary behavior were not associated with other cardiovascular outcomes. Conclusion: Higher levels of light physical activity were associated with lower arterial stiffness in men with peripheral artery disease. Objective Methods 65.7% 657 65 7 (65.7 661 66 1 66± years 0.57±0.18 057018 0 57 18 evaluated accelerometer moderatevigorous moderate vigorous oscillometric method, method , method) heart variability, variability variability) pulse velocity. . velocity) Results 341±14 34114 341 14 (341±1 minday min day 3069 306 9 306± p0040 p 040 p=0.040 respectively. respectively respectively) p=0.025, p0025 p=0.025 025 (p=0.025) p<0.001, p0001 p<0.001 001 (p<0.001) p=0.047 p0047 047 (p=0.047 β= β (β 4.66 466 4 -4.66 95CI CI 95 95%CI 8.57 857 8 -8.57 0.76 076 76 -0.76 Conclusion 65.7 6 (65. 0.57±0.1 05701 5 341±1 3411 34 (341± 30 p004 04 p=0.04 p002 p=0.02 02 (p=0.025 p000 p<0.00 00 (p<0.001 (p=0.04 4.6 46 -4.6 8.5 85 -8.5 0.7 07 -0.7 65. (65 0.57±0. 0570 341± 3 (341 p00 p=0.0 (p=0.02 p<0.0 (p<0.00 (p=0.0 4. -4. 8. -8. 0. -0. (6 0.57±0 057 (34 p0 p=0. p<0. (p<0.0 (p=0. -4 -8 -0 ( 0.57± 05 (3 p=0 p<0 (p<0. (p=0 - 0.57 p= p< (p<0 (p= 0.5 (p< (p

SUMMARY OBJECTIVE: To describe physical activity habits and barriers for physical activity practice in patients with peripheral artery disease and claudication symptoms during Coronavirus 2019 (COVID-19) pandemic. METHODS: In this cross-sectional survey study, 127 patients with peripheral artery disease (59.8% men; 68±9 years old; and 81.9% had the peripheral artery disease diagnosis ≥5 years old) were included. The physical activity habits and barriers for physical activity practice were assessed through telephone interview using a questionnaire with questions related to: (a) COVID-19 personal care; (b) overall health; (c) physical activity habits; (d) for those who were inactive, the barriers for physical activity practice. RESULTS: Only 26.8% of patients reported practicing physical activity during the COVID-19 pandemic. Exercise characteristics more common among these patients include walking, performed at least 5 days a week, during 31–60 min at light intensity. In contrast, among physically inactive patients, pain, injury or disability (55%), the COVID-19 pandemic (50%), the need to rest due to leg pain (29%), and lack of energy (27%) were the most frequent barriers to physical activity practice. CONCLUSION: The physical activity level of patients with peripheral artery disease is impacted by the COVID-19 pandemic.

O objetivo deste trabalho foi avaliar a dinâmica de decomposição e a liberação de nutrientes da parte aérea de plantas de soja cultivar Celeste, para fins de adubação verde. Utilizou-se o delineamento experimental de blocos ao acaso com cinco repetições. Nas parcelas, as plantas foram cortadas rente ao solo aos 55, 85 e 115 dias após a emergência (DAE) e foram analisadas quanto à decomposição do material vegetal e liberação de N, P, K, Ca e Mg, colocando-se 60 g de matéria fresca da parte aérea em sacos de tela, distribuídos sobre a superfície das parcelas no campo. Nas subparcelas, as taxas de redução de massa de matéria seca e de liberação de nutrientes foram monitoradas mediante análises aos 5, 10, 15, 30, 60, 90, 120 e 150 dias após os cortes das plantas. O modelo exponencial X = X0e-kt demonstrou dinâmicas não muito contrastantes, para os materiais cortados aos 55, 85 e 115 DAE. Apesar de o clima possivelmente ter influenciado na liberação de K, não causou diferenças significativas na decomposição de matéria seca e na liberação de N e fósforo. As plantas de soja, cortadas em diferentes estádios de desenvolvimento, apresentam taxas similares de decomposição e de liberação de nutrientes.

The objective of this work was to evaluate the dynamics of decomposition and release of nutrients from aerial plant parts of the soybean cultivar Celeste used as green manure. A randomized block design was adopted with five replications. Soybean plants were cut close to the soil surface 55, 85 and 115 days after emergency (DAE), and analysed to determine their decomposition and release of N, P, K, Ca and Mg, by placing 60 g of fresh material of the aerial part in nylon screen bags, that were distributed on field plots surface . The rates of loss of dry matter and of nutrient release were monitored in the 5, 10, 15, 30, 60, 90, 120 and 150 days after plant cut. The exponential model X = X0e-kt demonstrated that the dynamics of the material cut in the 55, 85 and 115 DAE were not so contrasting. The climate could have interfered on the results, principally on K release rates, however it did not cause mean differences on the biomass decomposition and N and P release. Soybean plant material from cut plants, at different growth stages, present similar rates of decomposition and nutrient release.