There are many possible reasons why your dog may be reluctant to move. It may be that it is tired, sick or injured, or it may be that it is not interested in its surroundings. Or maybe it’s just too comfortable and you don’t want to leave. Your dog may also appear reluctant to move if he hasn't gotten enough exercise or activity recently.
Dogs need appropriate exercise and activities to stay healthy and happy. If your dog is reluctant to move, it's a good idea to give him a physical exam to determine if he's sick or injured. If there aren't any obvious problems, you can try to give it the right amount of exercise and activity and try to keep it interested. You can also try to give it fresh food and water, and provide it with enough comfort.