you want the waist to have more support so then you should strengthen the part where the waist connects to the bottom half (the legs)
Pilates will help strengthen their muscles, yoga would loosen their joints, though running will build the wrong muscles and will later cause injuries. i learned that the hard way
´The Ionic column is typically identified by its capital, which includes large paired spiral scrolls, or volutes.<span> It has the tallest base of the three classic Greek orders. Columns in this style can be found throughout Capitol Hill, including the U.S. Capitol, the Supreme Court Building and the exterior of the Longworth House Office Building.´´ This s from: https://www.aoc.gov/capitol-hill/architecture-columns/ionic-columns
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