Federal University of Rio de Janeiro, Physical Education Post-Graduation Program, Rio de Janeiro, Brazil.
J Strength Cond Res. 2010 Nov;24(11):3049-54. doi: 10.1519/JSC.0b013e3181ddb207.
The purpose of this study was to compare the postexercise hypotensive response after different rest intervals between sets (1 and 2 minutes) in normotense older men. Seventeen older men (67.6 ± 2.2 years) with at least 1 year of strength training experience participated. After determination of 10 repetition maximum (10RM) loads for exercises, subjects performed 2 different strength training sessions. On the first day, volunteers performed 3 sets of 10 repetitions per exercise at 70% 10RM, with 1 or 2 minutes' rest interval between sets depending on random assignment. On the second day, the procedures were similar but with the other rest interval. There was no difference in systolic and diastolic blood pressure between rest intervals at any time point measure. Before 1- and 2-minute sessions, the systolic blood pressure values were 122.7 ± 6.0 and 123.2 ± 3.7 mm Hg, and diastolic blood pressure values were 80.5 ± 5.6 and 82.0 ± 3.7 mm Hg, respectively. Both 1 and 2 minute sessions still presented reduced values for systolic blood pressure after 60 minutes (102.9 ± 6.9 and 106.7 ± 5.4 mm Hg, respectively), while the diastolic blood pressure presented significant reductions for 50 minutes after a 1 minute session (12.1 to 5.6 mm Hg) and for 60 minutes after the 2 minute session (13.3 to 6.5 mm Hg). Additionally, the systolic and diastolic blood pressure effect size data demonstrated higher magnitudes at all time point measures after the 2-minute rest sessions. These results suggest a poststrength training hypotensive response for both training sessions in normotense older men, with higher magnitudes for the 2-minute rest session. Our findings suggest a potentially positive health benefit of strength training.
本研究旨在比较两组之间不同休息时间（1 分钟和 2 分钟）对血压的影响。17 名年龄在 67.6±2.2 岁的、有至少 1 年力量训练经验的正常血压老年人参与了本研究。在确定了每组 10 次重复最大（10RM）的负荷后，受试者进行了 2 次不同的力量训练。在第一天，志愿者以 70%的 10RM 进行了每组 10 次重复的 3 组运动，根据随机分配，每组之间休息 1 分钟或 2 分钟。第二天，程序相似，但休息间隔不同。在任何测量时间点，收缩压和舒张压在两种休息间隔之间没有差异。在 1 分钟和 2 分钟的训练之前，收缩压值分别为 122.7±6.0 和 123.2±3.7mmHg，舒张压值分别为 80.5±5.6 和 82.0±3.7mmHg。在 60 分钟后，1 分钟和 2 分钟的训练仍然使收缩压值降低（分别为 102.9±6.9 和 106.7±5.4mmHg），而舒张压在 1 分钟的训练后 50 分钟内显著降低（从 12.1mmHg 降至 5.6mmHg），在 2 分钟的训练后 60 分钟内显著降低（从 13.3mmHg 降至 6.5mmHg）。此外，在所有测量时间点，2 分钟休息组的收缩压和舒张压的效应大小数据都显示出更高的幅度。这些结果表明，在正常血压的老年人中，两种训练方案在力量训练后都有低血压反应，而 2 分钟的休息时间效果更大。我们的研究结果表明，力量训练可能对健康有积极的影响。
