Effects of tai chi on postural balance and quality of life among the elderly with gait disorders: A systematic review.

Background: Tai Chi is good for improving the physical fitness of older adults. But few studies have reported the effects of Tai Chi on the postural balance and quality of life of older adults with gait disorders.

Objective: This review aimed to assess the influence of tai chi on postural stability and quality of life in older adults with abnormal gait.

[Analysis on the changing trend of mortality rate and spectrum regarding causes of death in the last recent 30 years in Hunan province].

Objective: To investigate the changing trend of mortality and the spectrum regarding causes of death in the population of Hunan, and to analyze the health-related major diseases.

Methods: With retrospective study method, a sample survey on causes of death and the related information was carried out from 2004 to 2005 among the residents in Hunan province. Results were compared with the data from a retrospective survey on causes of death in Hunan during 1973-1975 and 1990-1992, respectively.