• Sohei Speakman
• Kyoshi Rouser
• Renshi Lowenfish
• Renshi Apodaca


Sohei Speakman opened the Ryushinkan Dojo in 1990 in a small duplex. In 1992, the school was moved to Lakewood.

Lary Speakman was born in Colorado and began his study of the martial arts in his teens with the Golden Gloves and Tae Kwon Do. When he graduated from high school, he began study of Thai Kick Boxing (Muay Thai). Graduating from the University of Colorado in 1971, he attended graduate school at the University of Illinois and began study of Aikido. At the time he was convinced there had to be some Martial Art which was better and more complete than those he had previously studied, an Art that just didn't end, that was effective and combat based. He briefly studied Judo and felt perhaps its precursor, Ju Jutsu, might be the Martial Art to satisfy his quest. This decision led him to Japan and Satoshi Goda-Sensei, a Japanese master of Ju Jutsu, in the mid 1970's and the study of Yoshin Ryu Ju Jutsu. He studied under Goda-Sensei until Sensei's death in 1991. Goda-Sensei promoted Mr. Speakman to 7th degree.

Kyoshi Rouser is a 6th degree Black Belt in Yoshin Ryu Jiu Jutsu, a Shidoshi-ho in Ninjutsu, a physical fitness trainer, owns Chikaraken Inc. and manages/operates the Martial Arts schools of Ryushinkan and Denver Dojo of Bujinkan Ninjutsu. She has been involved in the aforementioned training programs since the late 1980s. Her college degree led her to explore the world and she is experienced with conflict resolution in a variety of cultures and from many different perspectives. In order to maximize the value to clients, Ms. Rouser may contract with other instructors whose expertise matches the objectives sought. These instructors may be internationally known or locally acclaimed.

Renshi Lowenfish began training in Shotokan Karate as a teenager and ultimately earned the rank of Nidan in that style. He studied fencing in New York City under Maestro Martin. He served with the Denver paramedics for 11 years, including as a Field Instructor. In addition he is a certified Massage Therapist and an instructor of Combat Fencing. He began his studies at the Ryushinkan Dojo in 1997 and holds the rank of Godan in Yoshin Ryu Ju Tai Jutsu.

Renshi Apodaca came to the Ryushinkan Dojo in 1993. He took a two year sabbatical to pursue professional training as a Personal Protection Specialist in Executive Security, Defensive Driving, Human Behavior and Tactical Strategic Recognition, Surveillance and Counter Surveillance, and Armoring Autos and Residences. He is an instructor of Primitive Living Skills, a Wilderness Survival Expert, and a certified Firearms Shooting Expert as well as an instructor for handguns, shotgun and combat shooting. As a youth he wrestled and studied Karate. He has in addition studied Tae Kwon Do, Kung Fu, and Kick Boxing. Currently, he is an independent business owner and holds the rank of Godan in Yoshin Ryu Ju Tai Jutsu.