Aikido is Japanese, while Hapkido is Korean martial art form.

Aikido is a Japanese form of self-defense and martial art forms, whereas Tai Chi is a Chinese form of self-meditative exercise and martial art.

Kickboxing and Karate are influences of each other. The main difference between the two sports is, Kickboxing is a combat sport, whereas Karate is a martial art form.

The term ice skating means sliding on an ice surface, by using ice skates. Skiing is an international sport and a famous pastime, which entails attaching a pair of skis to one’s feet, and passing through snow.

Ice skating is moving on a surface of ice, by using a pair of ice skates. Rollerblading is the term coined for inline skating, which is practiced on ice, race tracks, skate parks, residential localities, etc.