Has anyone done this over an extended period of time? Arthritis or scar tissue an issue?
Strengthening of the striking limbs by developing the tendons and ligaments from the shoulders to the fingertips, then striking or slapping relatively hard objects enclosed in canvas/leather bags. Following a conditioning session, the striking area is usually treated with a medicinal aid created from plant derivatives, usually a traditional Chinese liniment called Dit Da Jow. A common belief among practitioners is that failing to apply Dit Da Jow after Iron Palm training sessions can have negative effects on long-term health, such as movement limitation, arthritis, and other nerve damage to the hands.