BACKGROUND: Balance disorders are the primary cause of falls, a significant health concern for the elderly. Tai Chi (TC) improves the balance and strength of the lower limb muscles that focus on centering the mind, bodywork, and breathing exercises. AIM: A systematic review was conducted to search for evidence of the effects of Thai Chi in balancing and strengthening of lower extremities among the elderly in the community. METHODS: According to the preferred reporting items for systematic reviews and meta-analyses guidelines, a systematic review was conducted. Databases included Science Direct, ProQuest, and PubMed, from 2015 to 2020, with research articles being original studies. The quality of research articles was assessed using the Physiotherapy Evidence Database scale. Systematically analyses were used for results syntheses. RESULTS: Six articles were included in this review. TC exercises effectively improve the balance and muscle strength of the lower limbs among the elderly in the community. TC has a beneficial effect on evaluation in the short (8 weeks) and long (12 weeks) term to prevent falls among the elderly in the community. CONCLUSION: TC exercises are beneficial for improving balance and muscle strength of the lower limb among the elderly in the community with Selected TC, Traditional TC, and Modified Chen-style TC.

Balance disorders are a severe problem for the elderly. Exercise that can increase the power of the back muscles, leg muscles and dynamic balance is physical exercise in core stability exercise (CSE). This study aimed to analyse core stability exercise's effect on increasing back muscle strength, leg muscles, and dynamic balance in the elderly. Fifty-six elderly people aged 60-70 years were selected by simple random sampling as the sample in this study. The exercise program was given CSE (n: 28) for four weeks as the intervention group. The back and leg muscle strength were measured using the Back-leg dynamometer and balance measurement using the Time Up Go Test (TUGT). T-test and Mann-Whitney analyses were used to compare the results before and after the intervention. The different tests between the intervention and the control group obtained a p-value of 0.001, meaning an effect of CSE to increase the strength of the back muscles, leg muscles, and dynamic balance in the elderly existed. This study proved that CSE effectively increased back muscle strength, leg muscles and dynamic balance in the elderly. It is suggested to analyze the effectiveness of CSE based on the characteristics of the respondents.