Hemodynamic responses to a community-based Tai Chi exercise intervention in ethnic Chinese adults with cardiovascular

Ruth E Taylor-Piliae1, William L Haskell, Erika Sivarajan Froelicher

  • 1Stanford Prevention Research Center, School of Medicine, Stanford University, Hoover Pavilion, MC 5705, 211 Quarry Road, Room N229, Stanford, CA 94305-5705, USA. rpiliae@stanford.edu

Insights

Tai Chi (TC) exercise significantly reduced blood pressure (BP) and improved aerobic endurance in ethnic Chinese adults with cardiovascular disease (CVD) risk factors. This culturally relevant intervention offers a low-cost approach to managing CVD risk.

Area of Science:

  • Gerontology
  • Preventive Medicine
  • Exercise Physiology

Background:

  • Cardiovascular disease (CVD) is a leading cause of death globally, particularly among older adults.
  • Physical activity is recognized for its role in mitigating CVD risk factors.
  • Limited research exists on the impact of Tai Chi (TC) on blood pressure (BP) in ethnic Chinese populations in the US.

Purpose of the Study:

  • To examine the hemodynamic responses to a 12-week community-based Tai Chi (TC) exercise intervention.
  • To assess the intervention's effect on blood pressure (BP) and aerobic endurance in ethnic Chinese adults with CVD risk factors.

Main Methods:

  • A quasi-experimental design was employed with ethnic Chinese adults aged over 45 residing in the San Francisco Bay Area.
  • Participants engaged in TC exercise three times weekly for 12 weeks.
  • Aerobic endurance was assessed via a step-in-place test, with BP and heart rate measured at rest and post-test at baseline, 6, and 12 weeks.

Main Results:

  • The study included 39 participants (69% women, mean age 66 years) with hypertension, hypercholesteremia, and/or diabetes.
  • High adherence (87%) was observed, with significant improvements in aerobic endurance over time.
  • Clinically significant reductions in resting BP (from 150/86 to 131/77 mmHg) and post-test BP (from 178/99 to 164/82 mmHg) were achieved (p < 0.01).

Conclusions:

  • A 12-week community-based TC intervention effectively reduced BP and enhanced aerobic endurance in Chinese adults with CVD risk factors.
  • TC presents a culturally relevant, low-cost, and accessible exercise modality for managing hypertension and reducing CVD risk.
  • This approach is crucial given the rising prevalence of hypertension in the US and its associated public health burden.
Abstract