Dog Kung Fu, i.e. Gǒuquán (狗拳), i.e. Dìshùquán (地术拳), is a martial arts style native to Fujian province China.
While sharing many similar features to styles like Wuzuquan, Huzunquan, and many others from the same region, this southern style of Chinese boxing has the unique feature of specializing in takedowns, Chin Na, and ground fighting while often taking advantage of utilizing techniques from an inferior position.
In response to these physical constraints, the nuns developed a system of fighting that they could use to defend themselves from bandits and wild animals.
Supposedly she had fallen ill in the Yongtai region near Fuzhou, it was there that she was assisted by the Chen Family who took care of her until recovery.
[1] Another legend suggests that the famous Fong Sai-Yuk was a master of Dishuquan and had passed his skills to monks in the Zhuyuansi Temple (nowadays known as Guanyuan Temple), this was passed through various generations until a monk named Hui Kai taught the style to Zheng Yishan.