Abstract:

Objective To investigate the effects of different frequency whole-body vibration training on dynamic and static balance ability and core stability for the old adults. Methods From January to June, 2018, 80 old subjects were randomly divided into 30 Hz group (n = 40) and 45 Hz group (n = 40), who accepted 30 Hz and 45 Hz whole-body vibration training, respectively, for twelve weeks. They were measured with the maximum distance of center of pressure (COP) forward and backward, the time standing on single foot with eye closing, the length of track of COP as standing for 30 seconds, the standing and sitting times within 30 seconds and the Timed Up and Go Test (TUGT) before and after training. Results The maximum distance of COP forward and backward, the time standing on single foot with eye closing and the standing and sitting times within 30 seconds increased after training in both groups (t > 7.359, P < 0.001), and was more in the 45 Hz group than in the 30 Hz group (| t| > 2.271, P < 0.05). The length of track of COP as standing for 30 seconds and the time of TUGT decreased after training in both groups ( t > 6.631, P < 0.001), and was less in the 45 Hz group than in the 30 Hz group ( t > 2.171, P < 0.05). Conclusion Both 30 Hz and 45 Hz whole-body vibration training can improve the dynamic and static balance ability, the core stability and mobility for old adults, to prevent them from falls. However, it seems more effective for the 45 Hz whole-body vibration training.

Key words: aged, fall, whole-body vibration training, balance, core stability, mobility