Abstract: Objective To explore the effect of progressive core strength training on balance of the old adults. Methods From April to September, 2018, 80 old persons were divided into control group (n = 40) and intervention group (n = 40), who accepted physical exercise and core strength training, respectively, for twelve weeks. They were assessed with one-legged standing time with eyes closed, center?of?pressure (COP) track as standing with eyes closed in 30 seconds, maximum distance of COP tilting, Timed "Up and Go" Test (TUGT) and standing up and sitting down in 30 seconds. Results The one-legged standing time with eyes closed, COP track as standing with eyes closed in 30 seconds, maximum distance of COP tilting, TUGT and standing up and sitting down in 30 seconds improved after training (t > 6.446, P < 0.001), and they improved more in the intervention group than in the control group (t > 2.127, P < 0.05). Conclusion Progressive core strength training can improve the dynamic and static balance, body control and core strength for the old adults, which may prevent them from falling down.

Key words: aged, core strength training, balance, fall