His main argument cited from the others is that there is no way you can test one's blood all the time because there is a window during which the drug cannot be detected. Therefore, the 'performance profile' is a better measure. Thus, to do so, the first thing is to look at the abnormality in performing.

following his logic he found that Ye showed an abnormality because 1) she was abruptly performed faster than ever and 2) she was even faster than a man gold medalist at the last 50 m. These arguments, however, were challenged. Two Australians swimmers have said they did the same when they were at about 16 yr old implying that the performance at ages bw 14-16 is not a smooth curve and there was a American 16 year girl who was even faster then Ye at the last 50 M in a 800 m race. These demonstrates that at the ages 14-16 you may find the 'abnormalities' and yet Ye is not the best among these 'abnormalities'.

These evidences reversely affect the author's reasoning on what he cited about the idea of using 'performing profile' as a measure.

Hence, the rest derivatives from his first reasoning cannot be upheld and the article is of little value to add to the sport science.