Exercise can improve the metabolic rate of human body, but the effect is only two days at most, so the most important thing is to keep exercising. If you can't do it every day, do it at least once every two days.
For an extremely obese person, even walking can be a great burden. Therefore, when choosing the type of exercise, we should do what we can, or focus on physical load, and gradually increase the amount of exercise to avoid cardiopulmonary overload or muscle and joint injury.
Here are some exercises that can consume 300 kilocalories:
Jog for 30 to 50 minutes.
Cycling 1 hour ~75 minutes.
Walk 1 hour ~l half an hour.
Swim for 30 to 40 minutes.
Play tennis for 45 minutes ~ 1 hour.
Jump rope for 30~40 minutes.