Circuit resistance exercises with both 30-second and 40-second rest intervals significantly reduced post-exercise systolic blood pressure compared to a control session, with no significant difference in magnitude or duration between the two rest intervals.
RCT (n=11)
Open-label
Randomized crossover order
No
Does circuit resistance exercise with 30- or 40-second rest intervals reduce post-exercise blood pressure in normotensive young males?
Circuit resistance exercises with either 30- or 40-second rest intervals induce similar post-exercise systolic hypotension in normotensive young men.
Absolute Event Rate: 103.6% vs 112.5%
p-value: p=0.004
PURPOSE: To investigate the blood pressure responses during recovery after two protocols of circuit resistance exercises (CRE) with different rest intervals (RI). METHODS: Eleven normotensive males (aged 19.5 ± 1.0 yrs, height 172.8 ± 5.7 cm and weight 65.1 ± 8.1 kg) performed two CRE with RI of 30 (RI30s) and 40 (RI40s) seconds between the exercises randomly, as well as a control session without exercise. The protocols consisted of 3 circuits of 6 exercises with 10 repetitions maximum (10RM) and 2 minute rest between circuits, followed by an 80 minute recovery period. Measurements were taken before exercise and at each 10 min of post-exercise recovery. The Analysis of Variance (ANOVA) with Repeated Measures (group × time) was used to analyze data, followed by post-hoc Bonferroni test, for P≤0.05. RESULTS: Post-exercise hypotension of systolic blood pressure was observed after both CRE with RI30s and RI40s (at R40, R50, R60, R70 and R80), whereas diastolic blood pressure did not differ from that measured at rest. In all measured moments, there was no significant difference between exercise trials in post-exercise levels of systolic and diastolic blood pressure. CONCLUSION: CRE with RI30s and RI40s between the exercises can lead to occurrence of PEH similarly in magnitude and duration. Our findings suggest a potentially positive health benefit of strength training.
أجرى عرازي وآخرون (الخميس) تجربة عشوائية مزدوجة التعمية على أشخاص طبيعيي الضغط (عددهم 11). تم تقييم تمارين المقاومة الدائرية مع فترات راحة 30 ثانية أو 40 ثانية مقابل جلسة تحكم بدون تمرين على ضغط الدم الانقباضي بعد 40 دقيقة من التمرين (فترة راحة 30 ثانية مقابل التحكم) (ص=0.004). أظهرت تمارين المقاومة الدائرية مع كلا فترتي الراحة 30 و40 ثانية انخفاضًا كبيرًا في ضغط الدم الانقباضي بعد التمرين مقارنةً بجلسة التحكم، دون وجود فرق كبير في المقدار أو المدة بين فترتي الراحة.