Arce Esquivel A A, Welsch M A
Department of Kinesiology, Louisiana State University, Baton Rouge, LA 70803-7101, USA.
Int J Sports Med. 2007 Mar;28(3):217-21. doi: 10.1055/s-2006-924291. Epub 2006 Oct 6.
The aim was to examine the influence of high and low volume whole-body circuit weight training on forearm reactive hyperemic blood flow, venous capacitance and outflow in young individuals. Thirty-five individuals (age: 22 +/- 1.89 years) participated in an 8 station circuit performed 3 days/week for 5 weeks. The high volume group (n = 15) was encouraged to complete 3 sets/station, whereas the low volume group (n = 20) performed 1 set/station. Before and after training, muscle strength (hand grip, knee extension and bench press) and vascular function (reactive hyperemia, venous capacitance and outflow) were measured. Before training, there were no significant group differences. Training resulted in significant but similar strength gains in both groups (hand grip: 3.89 +/- 4.57 kg (+ 15.59 %), knee extension: 30.62+/- 12.52 kg (+ 35.31 %), bench press: 12.4 +/- 8.81 kg (+ 21.03 %); p < 0.05). Group averages for vascular function did not change following the circuit training. However, individuals with the lowest pretraining vascular measures did have significant increases in reactive hyperemic blood flow (17 %, p = 0.006) and venous outflow (18 %, p = 0.013), independent of group assignment. In conclusion, high and low volume circuit weight training results in significant and similar strength gains. Individuals with evidence of lower pretraining vascular function appear to respond favorably to short-term circuit weight training.
目的是研究高低量全身循环抗阻训练对年轻个体前臂反应性充血血流量、静脉容量和流出量的影响。35名个体（年龄：22±1.89岁）参与了一项8站式循环训练，每周进行3天，共5周。高量组（n = 15）被鼓励每组完成3组训练，而低量组（n = 20）每组进行1组训练。在训练前后，测量肌肉力量（握力、膝关节伸展和卧推）和血管功能（反应性充血、静脉容量和流出量）。训练前，两组之间没有显著差异。训练导致两组的力量均显著增加，但增加幅度相似（握力：3.89±4.57 kg（增加15.59%），膝关节伸展：30.62±12.52 kg（增加35.31%），卧推：12.4±8.81 kg（增加21.03%）；p<0.05）。循环训练后，血管功能的组平均值没有变化。然而，训练前血管测量值最低的个体，其反应性充血血流量（增加17%，p = 0.006）和静脉流出量（增加18%，p = 0.013）有显著增加，且与分组无关。总之，高低量循环抗阻训练均能显著增加力量，且增加幅度相似。训练前血管功能较低的个体似乎对短期循环抗阻训练反应良好。
