Trampolines aren't just for children. See how bouncing on a small trampoline or "rebounding" can be a low impact way to stay fit.
원문출처 : https://www.cnn.com/videos/health/2018/06/25/rebounding-staying-well.cnn
원문출처 : https://www.cnn.com/videos/health/2018/06/25/rebounding-staying-well.cnn