April 25 (UPI) -- A group of students studying an unusual form of Kung Fu showed off their strength by swinging heavy wooden boxes from their genitals.
The video, recorded during an April 8 practice session in Zhengzhou, Henan Province, shows the students swinging heavy wooden boxes suspended from their genitals.
The practitioners said their form of Kung Fu, Damo Yijin Xisuigong, includes the unusual conditioning practice as a means of strength training and fighting dieases.
Master Wei Yaobin, a martial arts teacher and self-proclaimed "Iron Crotch Kung Fu Master," had his teachings go viral in February when he released a video showing his similarly groin-centered training techniques.
Yaobin claims his genital-punishing Kung Fu training can help men overcome erectile dysfunction and premature ejaculation.