Healthy Aging Practice-centered Instruction Cardiovascular Health Investigation (HAPI-CHI)
HAPI-CHI
Autonomic and Immuno-Vascular Mechanisms of Antihypertensive Effects of Tai Chi
1 other identifier
interventional
250
0 countries
N/A
Brief Summary
Over 30% of American adults have hypertension (HTN) (high blood pressure), and the rate increases considerably with age; 64% of men and 78% of women over 65 have HTN. High blood pressure associated with HTN can force of the blood against artery walls with enough pressure that it can eventually cause health problems, such as heart disease and stroke. HTN is one of the most significant causes of early death worldwide and one of the most preventable causes of death. Many studies reveal that lowering blood pressure (BP) reduces the incidence of diseases of the heart and blood vessels. Non-drug related treatments are known to reduce BP which can have a great effect on public health. Research suggests that Tai Chi (TC) is effective in lowering BP in patients with HTN, but because of the low quality of existing studies there is no definite proof. Also, it is not known how TC reduces BP. One possibility is that TC practice, which is shown to reduce psychological distress such as anxiety and depression and reduce the body's responses to stress, can improve the balance of the autonomic nervous system (the part of your nervous system that controls beating of the heart and the widening or narrowing of blood vessels). This may lead to lower BP. The investigators plan to investigate the pathways among autonomic, blood vessel, immune and psychological factors in relation to BP changes in response to 12-weeks of TC compared with Healthy Aging Practice-centered Education (HAP-E). 250 older adults (60+ years old) with mild HTN will be enrolled, and the investigators will take several measurements of heart and nervous system functioning. The investigators hypothesize that performing TC for 12 weeks will result in autonomic "re-regulation" which will improve BP and blood vessel health (Aim 1) and sympathetic nervous system (part of the nervous system that serves to speed up heart rate, contract blood vessels, and raise blood pressure) regulation of the immune system (Aim 2). Lastly, the investigators hypothesize that psychological factors will be related to TC effects on autonomic regulation (Aim 3). Findings from the investigators study will hopefully shed light on the pathways by which TC reduces BP. Also, the particular effects of TC ("meditative movement") in an older, "hard-to-treat" hypertensive population will be better understood.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable hypertension
Started Apr 2015
Longer than P75 for not_applicable hypertension
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 1, 2015
CompletedFirst Submitted
Initial submission to the registry
April 29, 2016
CompletedFirst Posted
Study publicly available on registry
May 4, 2016
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2022
CompletedJanuary 21, 2022
January 1, 2022
6.1 years
April 29, 2016
January 20, 2022
Conditions
Outcome Measures
Primary Outcomes (1)
Blood Pressure
Change From Pre-intervention to Post-intervention in Blood Pressure (mmHg)
Pre- to post-intervention (12 weeks)
Secondary Outcomes (6)
Stroke Volume
Pre- to post-intervention (12 weeks)
Cardiac Output
Pre- to post-intervention (12 weeks)
Total Peripheral Resistance (TPR)
Pre- to post-intervention (12 weeks)
Ejection Fraction (EF)
Pre- to post-intervention (12 weeks)
Pulse Wave Velocity (PWV)
Pre- to post-intervention (12 weeks)
- +1 more secondary outcomes
Study Arms (2)
Healthy Aging Practice-centered Instruction (HAPI)
ACTIVE COMPARATOR24 hours of group instruction in which experts present on a variety of health-related topics followed by class discussion, goal-setting, and goal review. Themes will include: sleep, nutrition, mental health, social support, bone-health, diabetes prevention, cognitive wellness, and resilience.
Tai Chi (CHI)
EXPERIMENTAL24 hours of group instruction in 8 meditative Tai Chi movements.
Interventions
Sessions will include interactive activities derived from the CDC's "Program to Encourage Active and Rewarding LiveS (PEARLS)" and will include lectures based on health-related topics from presentations given by experts as part of the UC San Diego Stein Institute of Aging's Successful Aging project. The PEARLS Problem Solving Treatment (PST) group discussions will be facilitated by a trained instructor in order for participants to identify problems or barriers they have in engaging in healthy behaviors relevant to each of 12 topic areas (e.g. sleep, nutrition, mental health, social support, bone health, diabetes prevention, cognitive wellness, and resilience). Each session will be composed of: Successful Aging video (45 min), discussion (40 min), and identifying problem solving strategies (25 min) with a homework assignment each week, for a total of 24 hours of in-class instruction and discussion.
Sessions will include expert instruction in the brief Yang-style 8-form Tai Chi meditative movements. Each class will include a 10-minute warm-up and cool-down plus 40 minutes of Tai Chi instruction and or practice, for a total of 24 hours of in-class instruction
Eligibility Criteria
You may qualify if:
- \. SBP≥130 but overall BP ≤ 170/110;
- Able to perform light to moderate exercise;
- Able to give informed consent;
- Able to complete study assessments as described;
- Understand study procedures and to comply with them for the entire length of the study;
- \. 60+ years;
- Able to complete written questionnaires without assistance (reading devices okay);
- Have not had a fall in that resulted in hospitalization in the past 12 months;
- Willing to be randomized to TC or HAP-E;
- Able to attend regular study activities at the center and/or UCSD.
You may not qualify if:
- Currently performing meditation for more than 15 minutes at a time 2X/week or more);
- Currently performing moderate exercise (enough to work up a sweat) for more than 15 minutes 2X/week or more.
- Oxygen-dependent COPD;
- Stroke, cerebral neurologic impairment, cardiac surgery or MI within the past year;
- Current use of mood stabilizers, or antipsychotics;
- Medications (steroids) and conditions affecting our immune assays or our physiological measures of vascular function (anti-cholinergics);
- Severe kidney disease;
- Current cancer diagnosis or treatment;
- Insulin-dependent diabetes mellitus;
- Meets criteria for bipolar disorder, schizophrenia, substance use disorder;
- Suicidality;
- Inability to read and write in English;
- Inability to provide written informed consent;
- Inability to adequately answer questions on the post-consent assessment;
- Current smoker;
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Related Publications (1)
Kohn JN, Lobo JD, Troyer EA, Wilson KL, Ang G, Walker AL, Pruitt C, Pung MA, Redwine LS, Hong S. Tai chi or health education for older adults with hypertension: effects on mental health and psychological resilience to COVID-19. Aging Ment Health. 2023 Mar;27(3):496-504. doi: 10.1080/13607863.2022.2053836. Epub 2022 Mar 21.
PMID: 35311437DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- SUPPORTIVE CARE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Asst Adjunct Prof
Study Record Dates
First Submitted
April 29, 2016
First Posted
May 4, 2016
Study Start
April 1, 2015
Primary Completion
May 1, 2021
Study Completion
December 1, 2022
Last Updated
January 21, 2022
Record last verified: 2022-01
Data Sharing
- IPD Sharing
- Will not share