Sensei Paul Barrett has been training with GM Mark Shuey and recommends his American Cane System for health and self-defense.  

Aiki-Cane^© uses the foundation of the American Cane System while incorporating the methods and movements of aikido. Students of aikido will recognize many of the techniques that have been adapted for the cane.  Additionally, atemi (strikes), blocks, and other moves, specific to the cane are taught.

Students work singularly and with uke (partners) to become familiar with specific moves and when sufficiently advanced use them in randori (literally “controlling the chaos”) or free form defense against one or multiple attackers under supervision to simulate real life situations.

Why a cane? Walking canes may take the stress off of knees, hips, and feet and are a common medical assistance device. As a result, they are seen as very non-threatening and can be carried almost anywhere. With proper practice they are an effective self-defense device.

Finally, here is a link to a 1901 article on cane fighting! As with many self-defense methods, we have evolved since it was published!