I feel that skipping rope will hurt my knees, especially when the subjects are heavy. You can jog first. In fact, I think it's best to buy a spinning bike, which can not only do aerobic exercise without hurting my knees, but also watch TV at home for fitness. It's good. The exercise time should not be less than half an hour.

If you eat, you should pay attention to eating less greasy and fat and more vegetables. Steamed bread with a bowl of soup should be no problem.