It doesn't matter how good you are at sports - once you have a cat at home, he will always do his best to interrupt anything you do no matter if you eat, drink, have a shower or chat with your friends. As for those who are interested in keeping fit, they are twice "lucky" since far not every cat will do his owner a favour and step aside when the human is working out - hell no! Cats are super careful and they feel you may suddenly injure yourself, so they will do everything to prevent you from both injuries and sports!