In the medieval period of Japan there were hundreds of independent martial traditions or ryūha maintaining practices of swordsmanship, archery, spear, and grappling; each with different organizing principles and distinct curricula. A small number of these traditions dating from the medieval period have survived to the current day.
Kashima-shinden Jikishinkage-ryū Heihō [
Its lineage begins in the 16th century and while its technical content has evolved over time, it continued to preserve in its advanced teachings the essence of Shinkage-ryū. This site contains a list of Jikishinkage-ryū training groups in North America as well as pointers to writing on this and related arts.
innerdharma.org
