Physical Education Department, Londrina State University , Londrina, Brazil.
Faculdade de Medicina FMUSP, Universidade de São Paulo , São Paulo, Brazil.
Clin Exp Hypertens. 2021 Feb 17;43(2):164-168. doi: 10.1080/10641963.2020.1833024. Epub 2020 Oct 10.
This study aimed to verify the effect of resistance training performed with single (SET1) or three sets (SET3) on muscle strength and resting blood pressure (BP) of individuals with hypertension. BP was also assessed during knee extension exercise with submaximal load before and after training. Thirty-eight patients with hypertension were randomly assigned to a control group (CON: n = 12; 55.6 ± 3.2 years; 65.3 ± 9.3 kg; 163.5 ± 8.6 cm), SET1 group (n = 14; 58.1 ± 2.0 years; 65.4 ± 8.7 kg; 162.4 ± 11.1 cm) or SET3 group (n = 12; 57.9 ± 2.4 years; 66.3 ± 11.4 kg; 161.6 ± 7.5 cm). The training was conducted for 12 weeks (3 d.w; 4 exercises; 12-15 repetitions; moderate intensity). No differences were found in pre-training values for BP and strength between groups. After training, SET3 showed lower values than CON for resting systolic (121.3 ± 8.0 vs 129.3 ± 10.3 mmHg; = .01) and diastolic BP (73.5 ± 6.0 vs 79.5 ± 7.4 mmHg; = .02). Muscle strength in bench-press and knee extension exercises increased in SET1 (48.1 ± 6.3 and 71.3 ± 12.2 kg, respectively) and SET3 (50.2 ± 7.8 and 75.2 ± 9.6 kg, respectively) in relation to CON (39.3 ± 5.1 and 62.4 ± 9.9 kg) ( < .01). BP during knee extension (70% of one maximal repetition) did not differ between groups either before or after training. Resistance training with a single set could be interesting when there is a need to increase muscle strength without necessarily reducing resting BP. On the other hand, the performance of three sets increased muscle strength and reduced BP at rest in individuals with hypertension.
本研究旨在验证单次（SET1）或三组（SET3）阻力训练对高血压患者肌肉力量和静息血压（BP）的影响。在训练前后，还评估了膝关节伸展运动时亚最大负荷下的 BP。 38 名高血压患者被随机分配到对照组（CON：n = 12；55.6 ± 3.2 岁；65.3 ± 9.3 kg；163.5 ± 8.6 cm）、SET1 组（n = 14；58.1 ± 2.0 岁；65.4 ± 8.7 kg；162.4 ± 11.1 cm）或 SET3 组（n = 12；57.9 ± 2.4 岁；66.3 ± 11.4 kg；161.6 ± 7.5 cm）。训练持续 12 周（每周 3 天；4 项运动；12-15 次重复；中等强度）。 三组在训练前的 BP 和力量值均无差异。训练后，SET3 的静息收缩压（121.3 ± 8.0 对 129.3 ± 10.3 mmHg； =.01）和舒张压（73.5 ± 6.0 对 79.5 ± 7.4 mmHg； =.02）均低于 CON。SET1（48.1 ± 6.3 和 71.3 ± 12.2 kg）和 SET3（50.2 ± 7.8 和 75.2 ± 9.6 kg）的卧推和膝关节伸展运动的肌肉力量均高于 CON（39.3 ± 5.1 和 62.4 ± 9.9 kg）（ <.01）。膝关节伸展运动时的 BP（最大重复的 70%）在训练前后三组间也无差异。 当需要增加肌肉力量而不一定降低静息 BP 时，单次组的阻力训练可能很有趣。另一方面，三组训练增加了高血压患者的肌肉力量并降低了静息 BP。
