An accumulation of lactic acid causes increased levels of acidity in the muscle issue, which causes the fatigue and soreness that runners experience in RACES.
2
只要正确训练,我们可以延迟乳酸堆积的起始时间,提高我们身体将乳酸用作燃料的能力。
With the right training, we can delay the onset of lactic acid accumulation, and improve our body's capacity to use it for fuel.
3
跑得太快,乳酸堆积太快,不到15 - 20分钟,您已经疲惫不堪,无法达到所需的训练效果。
Run too fast, and lactic acid will build up too quickly, bringing you to fatigue before you've hit the 15 to 20 minutes necessary to gain the desired training effect.