PLANK is definitely the most popular trick of no-equipment exercise+thin abdomen recently. Simple and easy to learn, it can effectively exercise transverse abdominis and make the lower abdomen flat every day. Plate support belongs to consumable body shaping. Although the action is simple, it needs to mobilize the muscles of the whole body. Stick to it for 2 minutes and you will get the reputation of "female man". Beginners should never compete with themselves. You can practice from 30 seconds in the first week and gradually increase. Two minutes is enough. It's best to divide into 4 groups, each with 30 seconds, to reduce the burden, and the interval between each group should not exceed 20 seconds.