It is best not to run in winter, because the temperature is too low, which is not good for your voice.

If LZ can find a suitable gym, skipping can also be done.

If you really have no choice, practice the basic movements of dancing at home, such as stretching. You can buy books if you don't want to go to the gym. There are many books that teach the basic movements of dance, and the shaping effect is very good. Besides, playing Tai Ji Chuan is also quite slimming. It takes about 1 hour to play Taijiquan for one hour.