Hypotensive effects of resistance exercises performed at different intensities and same work volumes

Abstract

The aim of this paper was to compare the effects of two sequences of resistance exercises (RE), with different intensities but same training volume, on post-exercise blood pressure responses. Sixteen young subjects with previous experience in RE were evaluated during three non-following days in chest press, legpress, pulley pull down, leg curl, shoulder press, and biceps curl. On the first day, the load associated with six maximal repetitions (6RM) were determined for each exercise. On the second day, three sets of 6RM were performed (SEQ6), with a two minute interval between the sets. On the last day, the same procedure was repeated, but using 12 repetitions with 50% of 6RM load (SEQ12). Rest BP was measured before the sequences by auscultatory method. Post-exercise resting BP was measured each 10 minutes by ambulatory BP monitoring during 60 minutes. The magnitude and duration of BP variability were compared by repeated ANOVA measures followed by Tuckey post-hoc test (p < 0.05). A significant reduction in diastolic blood pressure (DBP) was observed in the first 20 minutes after SEQ12, but not after SEQ6. SEQ12 elicited significant decline in systolic blood pressure (SBP), at least during the first 50 minutes after the exercise, while significant reductions were observed in all measures after SEQ6. There were no significant differences between the absolute values of DBP and SBP after both sequences. In conclusion: a) RE had hypotensive effects on blood pressure, mainly SBP; b) the absolute decline of SBP seem not to be influenced by different interactions between workload and number of repetitions; c) higher workloads seem to extend the total time of SBP post-exercise reduction; d) the number of repetitions seems to have more influence on DBP than SBP, but for a short period of time

Entrenamiento interválico de alta intensidad contribuye a la normalización de la hipertensión arterial

“…algunos ejercicios físicos pueden tener efectos hipertensores o hipotensores agudos, no obstante, lo que realmente importa es lograr la adaptación crónica del sistema cardiovascular central y periférico 2,3 . en este contexto, se han reportado importantes disminuciones de la presión arterial sistólica (PaS) y diastólica (Pad) en sujetos sedentarios, en respuesta a la práctica de ejercicios de sobrecarga y otras modalidades 3,4 , tanto en sujetos normotensos como hipertensos 3,5 . interesantemente, estas reducciones en la presión arterial difieren en cuanto a su magnitud y duración según el tipo de ejercicio realizado (fuerza o pesas, aeróbicos), intensidad 6 y volumen de ejercicio 5,7 .…”

Efeito do intervalo de recuperação fixo e autossugerido entre séries do exercício resistido sobre o comportamento cardiovascular pós-esforço

“…Several studies even presenting significant reductions in SBP did not necessarily point out falls in DBP 14,15 . In other words, the reduction in DBP after exercise seems to be less susceptible to the exercise stimulus itself and, therefore, its behavior is not predictable [14][15][16][17][18][19] . In addition to the rest interval effect, other variables may also influence the post-exercise cardiovascular response, such as the training volume 14 .…”

Efectos de un programa de ejercicio físico estructurado sobre los niveles de condición física y el estado nutricional de obesos mórbidos y obesos con comorbilidades

“…La estimulación del músculo esquelético produce como respuesta el proceso de angiogénesis (34), que es la formación de nuevos vasos sanguíneos a partir de los preexistentes, relacionada con una disminución de la resistencia vascular periférica (35). El ejercicio de fuerza ha demostrado un efecto hipotensivo en la presión arterial (36), que podría estar asociado a una mejor función endotelial por una mayor producción de óxido nítrico (37).…”