National Center for Complementary and Alternative Medicine perspectives for complementary and alternative medicine research in cardiovascular diseases

Meta-analysis of the intervention effects of tai chi on fasting blood glucose, blood pressure and triglyceride in middle-aged and elderly people

BACKGROUND

Hypertension, hyperlipidemia, and hyperglycemia have emerged as global health concerns of paramount significance. With the burgeoning popularity of mind-body therapy, cardiovascular patients have increasingly exhibited a vested interest in the practice of Tai Chi. The objective of this study seeks to quantitatively assess the impact of Tai Chi interventions on blood pressure, lipid levels, and glucose concentrations among the elderly population, thereby explaining the optimal intervention protocol.

METHODS

An extensive search was conducted across multiple databases, including Web of Science, PubMed, CNKI, WANFANG DATA, RISS, KISS, and DBPIA, comprising English, Korean, and Chinese literature. The search strategy employed a retrieval method of subject term 1 + subject term 2, which included both full names and abbreviations of the terms. Specifically, "taijiquan" or "Tai Chi" were set as the Term 1, while Term 2 was set as "blood pressure," "BP," "Fasting blood glucose," "FBG," "Triglyceride," and "TG." Thereafter, the retrieved articles were filtered in accordance with the PICOS method. Risk of bias assessment was performed using RoB 2.0, while data analysis was conducted using Comprehensive Meta-Analysis 3.7.

RESULTS

A total of 57 studies, including 3,856 research subjects, were eligible for inclusion. The findings of the primary effect quantitative synthesis demonstrated that Tai Chi exerted an improvement on systolic blood pressure (SBP) (ES = -0.764, p < .001), diastolic blood pressure (DBP) (ES = -0.426, p = .001), triglyceride (TG) (ES = -0.452, p < .001), and fasting blood glucose concentrations (FBG) (ES = -0.552, p = .002) among middle-aged and elderly individuals. Subgroup analysis further revealed that the intervention effects were significantly influenced by the characteristics of the research subjects and the specific intervention protocol employed.

CONCLUSION

Tai Chi, as a gentle form of aerobic exercise, exerts a profound impact on reducing blood pressure, fasting blood glucose levels, and triglyceride concentrations among middle-aged and elderly individuals. Notably, the intervention effect is particularly pronounced among male patients afflicted with hypertension, hyperglycemia, and hyperlipidemia. Based on the collective advantages underscored by this research, we strongly recommend engaging in Tai Chi exercises for a minimum duration of 16 weeks, with each session lasting 30-50 min and conducted 6-7 times per week, without any restrictions on the style employed.

Perspective of patients referred to Yoga center in a tertiary neuropsychiatric hospital: A cross-sectional retrospective study

BACKGROUND

Yoga has been extensively used as an alternative or complementary therapy in psychiatric disorders depending on the type and severity of the disorders. However, data related to perspective on yoga services and the benefits and adverse effects attributed to yoga by patients with major psychiatric disorders is lacking.

AIM

The aim of the study was to assess feedback of the patients who attended yoga sessions at a Yoga center in a tertiary neuropsychiatric hospital.

MATERIALS AND METHODS

This was a cross-sectional retrospective study using a specific questionnaire to get feedback from patients referred to the NIMHANS Integrated Center for Yoga, at the end of their yoga training.

RESULTS

Two hundred and one patients' data were included in this retrospective study. Most of the patients were referred by the doctors. The yoga module for schizophrenia was most commonly utilized, followed by depression. On an average, patients attended 13 sessions. Most of them practiced yoga for 1-2 weeks and had missed less than 2 sessions. The great majority of the patients reported that practicing yoga helped them. Spearman correlation analysis revealed positive associations between improvement attributed to yoga and variables affecting quality of yoga services at the center, including the quality of yoga sessions attended. Overall health and sleep improvement also positively correlated with improvement attributed to yoga. A minority of patients reported adverse effects, although these did not lead to discontinuation.

CONCLUSION

In this retrospective study of patients referred to a Yoga center in a tertiary psychiatric facility, the majority of patients with major mental disorders were able to practice yoga under supervision and reported significant improvement in symptoms with minimal adverse effects.

Posttraining Knowledge Retention among Licensed Cupping Providers in Saudi Arabia

BACKGROUND

One of the licensing requirements for cupping providers in Saudi Arabia is to attend a compulsory training course that lasts 5 days for non-physicians and 4 days for physicians, irrespective of any previous experience in cupping therapy. The course is conducted by the National Center of Complementary and Alternative Medicine (NCCAM/MOH). As a part of course auditing, the current study aimed to evaluate knowledge retention among licensed cupping providers 1-3 years after passing the official cupping course.

METHODS

Licensed cupping providers were invited to attend a continuing medical education activity. Sixty-two attended the continuing medical education activity. Before the event, participants were asked to answer 35 multiple-choice questions taken from the same data bank as the pretest and posttest of the course. The test scores were linked and compared with the pre- and posttest of the training course.

RESULTS

A paired t test showed significant differences between the pre- and posttest knowledge scores (mean difference: 224.6 ± 86, p = 0.0001) and between the posttest and follow-up knowledge scores (mean difference: -115.26 ± 103.9, p = 0.0001). The follow-up score was still significantly higher than the pretest score, with a mean difference of 112 (95% CI: 83.66-140.34, p = 0.0001). There was no significant effect of category (physician vs. non-physician) on knowledge retention after controlling for the postcourse score. Gender, the total duration of experience, and total years of experience in cupping did not affect knowledge score retention between the physicians and the non-physicians.

CONCLUSION

The official cupping training course of the NCCAM/MOH achieved reasonable knowledge retention. To achieve long-term knowledge retention, refresher training/courses and continuous professional development will be required.

Use of complementary therapies by individuals with or at risk for cardiovascular disease: results of the 2007 National Health Interview Survey

BACKGROUND

Complementary and alternative medicine (CAM) therapies are often used as adjuvants to conventional treatment by individuals with cardiovascular disease (CVD) or CVD risk factors, such as hypertension and high cholesterol. Patterns of use of CAM practices and products represent important data for health care providers in delivering adequate patient care.

OBJECTIVE

This study compared CAM use among the US CVD and general population, as well as individuals with CVD risk factors (hypertension and/or high cholesterol), through secondary analyses of the 2007 National Health Interview Survey data.

METHODS

The analysis compared use of CAM by individuals with CVD (those individuals self-reporting a diagnosis of coronary heart disease; n = 1055), individuals with CVD risk factors (those individuals self-reporting a diagnosis of hypertension [n = 6849] or high cholesterol [n = 5808]), and individuals who self-report as not having CVD or CVD risk factors (n = 22 290).

RESULTS

Use of complementary practices and products by patients with CVD and CVD risk factors is common and significantly greater than individuals without CVD in the general population. The most common categories of complementary modalities used by individuals with a self-reported diagnosis of CVD or CVD risk factors were natural products and mind-body practices.

CONCLUSIONS

The diagnosis of CVD or CVD risk factors may be associated with the use of complementary practices and products.

Biofield therapies in cardiovascular disease management: a brief review

Though there have been advances over the last 30 years in the therapeutic approaches to cardiovascular disease (CVD), heart disease and stroke remain the leading cause of mortality and morbidity worldwide. Many medical therapies for CVD are associated with a number of side effects, often leading patients to seek non-pharmacological treatments to complement standard care. Referred to as complementary and alternative medicine (CAM), these therapies consist of a heterogeneous group of modalities used in addition to conventional health care. Biofield therapies exist within this CAM domain and involve the direction of healing energy to facilitate general health and well-being by modifying the energy field. What follows is a brief overview of three biofield therapies developed or used within the field of nursing (Therapeutic Touch, Reiki, and Healing Touch), surveying the use of these interventions for individuals with CVD, and outcomes that may impact CVD risk factors and health-related quality of life.

Tai chi exercise in patients with chronic heart failure: a randomized clinical trial

BACKGROUND

Preliminary evidence suggests that meditative exercise may have benefits for patients with chronic systolic heart failure (HF); this has not been rigorously tested in a large clinical sample. We sought to investigate whether tai chi, as an adjunct to standard care, improves functional capacity and quality of life in patients with HF.

METHODS

A single-blind, multisite, parallel-group, randomized controlled trial evaluated 100 outpatients with systolic HF (New York Heart Association class I-III, left ventricular ejection fraction ≤40%) who were recruited between May 1, 2005, and September 30, 2008. A group-based 12-week tai chi exercise program (n = 50) or time-matched education (n = 50, control group) was conducted. Outcome measures included exercise capacity (6- minute walk test and peak oxygen uptake) and disease-specific quality of life (Minnesota Living With Heart Failure Questionnaire).

RESULTS

Mean (SD) age of patients was 67 (11) years; baseline values were left ventricular ejection fraction, 29% (8%) and peak oxygen uptake, 13.5 mL/kg/min; the median New York Heart Association class of HF was class II. At completion of the study, there were no significant differences in change in 6-minute walk distance and peak oxygen uptake (median change [first quartile, third quartile], 35 [-2, 51] vs 2 [-7, 54] meters, P = .95; and 1.1 [-1.1, 1.5] vs -0.5 [-1.2, 1.8] mL/kg/min, P = .81) when comparing tai chi and control groups; however, patients in the tai chi group had greater improvements in quality of life (Minnesota Living With Heart Failure Questionnaire, -19 [-23, -3] vs 1 [-16, 3], P = .02). Improvements with tai chi were also seen in exercise self-efficacy (Cardiac Exercise Self-efficacy Instrument, 0.1 [0.1, 0.6] vs -0.3 [-0.5, 0.2], P < .001) and mood (Profile of Mood States total mood disturbance, -6 [-17, 1] vs -1 [-13, 10], P = .01).

CONCLUSION

Tai chi exercise may improve quality of life, mood, and exercise self-efficacy in patients with HF. Trial Registration clinicaltrials.gov Identifier: NCT00110227.

Tai chi exercise for patients with cardiovascular conditions and risk factors: A SYSTEMATIC REVIEW

PURPOSE

To conduct a systematic review of the literature evaluating tai chi exercise as an intervention for patients with cardiovascular disease (CVD) or with CVD risk factors (CVDRF).

METHODS

We searched (1) MEDLINE, CAB Alt HealthWatch, BIOSIS previews, Science Citation Index, EMBASE, and Social Science Citation Index from inception through October 2007; (2) Chinese Medical Database, China Hospital Knowledge, China National Knowledge Infrastructure, and China Traditional Chinese Medicine Database from inception through June 2005; and (3) the medical libraries of Beijing and Nanjing Universities. Clinical studies published in English and Chinese including participants with established CVD or CVDRF were included. Data were extracted in a standardized manner; 2 independent investigators assessed methodological quality, including the Jadad score for randomized controlled trials (RCTs).

RESULTS

Twenty-nine studies met inclusion criteria: 9 RCTs, 14 nonrandomized studies, and 6 observational trials. Three studies examined subjects with coronary heart disease, 5 in subjects with heart failure, and 10 in heterogeneous populations that included those with CVD. Eleven studies examined subjects with CVDRF (hypertension, dyslipidemia, impaired glucose metabolism). Study duration ranged from 8 weeks to 3 years. Most studies included fewer than 100 subjects (range, 5-207). Six of 9 RCTs were of adequate quality (Jadad >or= 3). Most studies reported improvements with tai chi, including blood pressure reductions and increases in exercise capacity. No adverse effects were reported.

CONCLUSION

Preliminary evidence suggests that tai chi exercise may be a beneficial adjunctive therapy for some patients with CVD and CVDRF. Further research is needed.

The effect of tai chi exercise on blood pressure: a systematic review

A systematic review of the literature on the effect of tai chi exercise on blood pressure (BP) was performed. The authors searched Medline, CAB, Alt HealthWatch, BIOSIS previews, Science Citation Index, and EMBASE systems (inception through January 2007); researched Chinese Medical, China Hospital Knowledge, China National Knowledge Infrastructure, and China Traditional Chinese Medicine databases (inception to June 2005); and performed hand searches at the medical libraries of Beijing and Nanjing Universities. Clinical studies of tai chi examining BP as an outcome published in English or Chinese were included. Studies reporting only acute exercise effects were excluded. Data were extracted in a standardized manner and 2 independent investigators assessed methodologic quality. Twenty-six studies examining patients with and without cardiovascular conditions met inclusion criteria: 9 randomized controlled trials, 13 nonrandomized studies, and 4 observational studies. Study heterogeneity precluded formal meta-analyses. Twenty-two studies (85%) reported reductions in BP with tai chi (3-32 mm Hg systolic and 2-18 mm Hg diastolic BP reductions). Five randomized controlled trials were of adequate quality (Jadad score > or = 3). No adverse effects were reported. Tai chi exercise may reduce BP and serve as a practical, nonpharmacologic adjunct to conventional hypertension management.

In vitro test of external Qigong

Background

Practitioners of the alternative medical practice 'external Qigong' generally claim the ability to emit or direct "healing energy" to treat patients. We investigated the ability of experienced Qigong practitioners to enhance the healthy growth of cultured human cells in a series of studies, each following a rigorously designed protocol with randomization, blinding and controls for variability.

Methods

Qigong practitioners directed healing intentionality toward normal brain cell cultures in a basic science laboratory. Qigong treatments were delivered for 20 minutes from a minimum distance of 10 centimeters. Cell proliferation was measured by a standard colony-forming efficiency (CFE) assay and a CFE ratio (CFE for treated samples/CFE for sham samples) was the dependent measure for each experiment.

Results

During a pilot study (8 experiments), a trend of increased cell proliferation in Qigong-treated samples (CFE Qigong/sham ratios > 1.0) was observed (P = 0.162). In a formal study (28 experiments), a similar trend was observed, with Qigong-treated samples showing on average more colony formation than sham samples (P = 0.036). In a replication study (60 experiments), no significant difference between Qigong-treated samples and sham samples was observed (P = 0.465).

Conclusion

We observed an apparent increase in the proliferation of cultured cells following external Qigong treatment by practitioners under strictly controlled conditions, but we did not observe this effect in a replication study. These results suggest the need for more controlled and thorough investigation of external Qigong before scientific validation is claimed.