美国一项研究表明,一次性爱,约需要动用全身600多块肌肉中的400块肌肉,相当于40分钟左右的慢跑,或者20分钟中高强度的篮球比赛。调查也发现,自行车运动员、举重运动员、蛙泳运动员和拳击运动员的性能力大多比一般人强。这是因为从事这些项目的运动员,都具有发达的肌肉和强壮灵活的下肢以及腰腹部和背部。而一次完美性爱的动力,正是来源于上肢肌群、背肌、下肢肌群、腹肌、腰肌等肌群,这些肌肉群在性爱中发挥重要作用,使性爱达到完美。 A study in the United States shows that one-off sex requires about 400 muscles out of more than 600 muscles in the body, which is equivalent to about 40 minutes of jogging or 20 minutes of high-intensity basketball. The survey also found that most cyclone, weightlifter, breaststroke athletes and boxers athletic ability than most people. This is because athletes working on these items have well-developed muscles and strong, flexible lower extremities as well as the waist, abdomen and back. And a perfect sex drive, it is derived from the upper extremity muscles, back muscles, lower extremity muscles, abdominal muscles, psoas and other muscle groups, these muscles play an important role in sex so that sex to achieve perfection.