Kendo is a Japanese martial art that utilizes bamboo swords called "shinai" during practice and competition. While the strikes in kendo can be forceful and generate impact, the objective is not to cause pain or injury but rather to focus on proper technique, discipline, and sportsmanship.

When used correctly, a strike from a shinai during kendo practice should not cause significant pain or injury. The shinai is designed to flex upon impact, absorbing much of the force and distributing it more evenly, reducing the risk of injury. Additionally, kendo practitioners wear protective gear, including a helmet (men), chest protector (do), gloves (kote), and groin protector (tare), which provides additional protection.

That said, it is important to note that accidents can happen during training or competition, and minor discomfort or bruising may occur due to the forceful nature of the strikes. Kendo requires proper training, control, and respect for your training partners to minimize the risk of injury.

Kendo practitioners are trained to strike with precision, targeting specific areas such as the head, wrists, or torso. The objective is to score points by making clean and accurate strikes, rather than inflicting pain.

Overall, while kendo strikes may generate some discomfort or impact, the practice is focused on discipline, technique, and mutual respect among practitioners. Safety is prioritized, and the intent is not to cause unnecessary harm or injury.