"High-impact exercise, like running and jumping rope, can contribute to premature sagging by stretching out the ligaments in your breasts," says Sabrena Merrill, a personal trainer and spokeswoman for the American Council on Exercise. For this reason, Dr. LaJean Lawson, Ph.D., adjunct professor of exercise and sport science at Oregon State University, adds that the importance of a well-fitting sports bra that minimizes boob bouncing cannot be overstated. "It's not enough that it's "cute" or that your running partner loves a particular style. Start with analyzing your favorite activities according to the amount of bounce they produce. Then put your size per-conceptions behind you and be willing to get properly fitted," she says. Dr. Lawson recommends doing a test drive in the dressing room by mimicking actions you would do in your workout.
While small-chested women have a plethora of style options, larger chested ladies need to be more picky. Bras like those from Enell specialize in C-cup and above with specialized fabric, wider straps, and a series of corset-like hooks up the front that hold you rock-solid through even the highest-impact workouts.
