Effect of Tai Chi on Cardiac and Static Pulmonary Function in Older Community-Dwelling Adults at Risk of Ischemic Stroke: A Randomized Controlled Trial
- 25 Downloads
To evaluate the effect of tai chi exercise on cardiac and static lung function for older community-dwelling adults at risk of ischemic stroke.
A total of 170 older community-dwelling adults (aged 55–75 years old) at risk of ischemic stroke were allocated to either tai chi training group (85 cases, five 60-min sessions of tai chi training per week for 12 weeks) or control group (85 cases, usual pbysical activity for 12 weeks) using a computer-generated randomization. The echocardiographic parameters of cardiac structure, cardiac function and static lung function were measured at baseline, after 12 weeks of intervention and additional 12-week follow-up period by a blinded professional staffmember using a color Doppler ultrasound imaging device or a cardiopulmonary function instrument. The t test and linear mixed model based on the intentionto-treat analysis principle was used to calculate the effect. The adverse effect was observed.
Most of echocardiographic parameters on the cardiac structure, cardiac function and static lung function between the tai chi group and control group did not have a significant difference either post 12-week intervention or additional 12-week follow-up period. Only three parameters involving in right ventricular diameter (P=0.024), main pulmonary artery diameter (P=0.002) and vital capacity maximum (P=0.036) were beneficial to be improved in the tai chi group compared to the control group by the analysis of mixed linear model. No adverse effects were found during the intervention period.
The 12-week tai chi exercise did not have an obvious beneficial effect on cardiac structure, cardiac function and static lung function in older community-dwelling adults at risk of ischemic stroke. The study with a longer duration of intervention should be necessary. (Trial registration No. ChiCTR-TRC-13003601)
Keywordstai chi cardiac structure and function static lung function ischemic stroke randomized controlled trial
Unable to display preview. Download preview PDF.
We thank the participants and staffin the communities and hospitals, including the Fujian University of Traditional Chinese Medicine Subsidiary Rehabilitation Hospital and Health Check Center of the Second People's Hospital of Fujian Province, for their work in this project.
- 8.Lee CD, Blair SN. Cardiorespiratory fitness and stroke mortality in men. Med Sci Sport Exerc 2002;34:592–595.Google Scholar
- 12.van de Laar RJ, Ferreira I, van Mechelen W, Prins MH, Twisk JW, Stehouwer CD. Lifetime vigorous but not light-to-moderate habitual physical activity impacts favorably on carotid stiffness in young adults: the Amsterdam growth and health longitudinal study. Hypertension 2010;55:33–39.CrossRefGoogle Scholar
- 15.Aksakal E, Kurt M, Oztürk ME, Tanboga IH, Kaya A, Nacar T, et al. The effect of incremental endurance exercise training on left ventricular mechanics: a prospective observational deformation imaging study. Anadolu Kardiyol Derg 2013;13:432–438.Google Scholar
- 20.World Health Organization. Global recommendations on physical activity for health. Available at https://doi.org/www.who.int/dietphysicalactivity/factsheet_recommendations/en/.2012.
- 22.Global recommendations on physical activity for health. Geneva, Switzerland, World Health Organization 2010. Available at: https://doi.org/whqlibdoc.who.int/publications/2010/9789241599979_eng.pdf.
- 26.Zheng G, Huang M, Liu F, Li S, Tao J, Chen L. Tai chi chuan for the primary prevention of stroke in middle-aged and elderly adults: a systematic review. Evid Based Complement Altern Med 2015;2015:742152.Google Scholar
- 27.Zheng G, Zheng X, Li J, Duan T, Qi D, Ling K, et al. Design, methodology and baseline characteristics of tai chi and its protective effect against ischaemic stroke risk in an elderly community population with risk factors for ischaemic stroke: a randomised controlled trial. BMJ Open 2015;5:e009158.Google Scholar
- 28.Wang LD, ed. Screening of subjects at high risk for stroke. Beijing: Ministry of Public Health Press;2012:2–4.Google Scholar
- 29.Sheng JZ, Gu LX, Fu ZW, Tang H, eds. The comprehensive book of tai chi chuan. 2nd ed. Beijing: People Sports Press;2006:125.Google Scholar
- 41.Wernstedt P, Sjöstedt C, Ekman I, Du H, Thuomas KA, Areskog NH, et al. Adaptation of cardiac morphology and function to endurance and strength training. A comparative study using MR imaging and echocardiography in males and females. Scand J Med Sci Sports 2002;12:17–25.Google Scholar