Doing planks is great for the Main, but you may be holding the plank for too prolonged–you have to increase some motion. A great plank must final thirty seconds. Then, move into an ab physical exercise that needs motion from the plank placement. *In a very 2018 13-week randomized double-blind https://soccer15199.dm-blog.com/11582593/does-running-burn-belly-fat-an-overview