NCT00605436

Brief Summary

We tested the following hypotheses:

  1. 1.That a standardized yoga therapy will improve insulin sensitivity (primary outcome), and other features of the metabolic syndrome such as hypertension and dyslipidemia (secondary outcomes), we will perform a 2-hour oral glucose tolerance test, fasting blood tests, and a physical examination before and after randomization of subjects to a 10-week yoga therapy intervention or wait-list control group.
  2. 2.That a yoga therapy is feasible in overweight and underactive individuals with the metabolic syndrome, that adherence to a yoga intervention is acceptable, and that yoga therapy is associated with improved quality of life, we will assess the adherence to twice-weekly yoga group sessions (for weeks1-5) and weekly yoga group sessions (for weeks 6-10), frequency of home yoga therapy practice, and self-reported quality of life before and after the intervention in both treatment groups.
  3. 3.To elucidate a potential mechanism for the effect of yoga on changes in insulin resistance by evaluating markers of inflammation from adipose tissue (adipocytokines). We hypothesize that these biochemical parameters will show modest improvement with yoga therapy and that changes in these parameters will be associated with improvements in insulin sensitivity.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
26

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Oct 2006

Shorter than P25 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2006

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2007

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2007

Completed
8 months until next milestone

First Submitted

Initial submission to the registry

January 16, 2008

Completed
15 days until next milestone

First Posted

Study publicly available on registry

January 31, 2008

Completed
Last Updated

January 31, 2008

Status Verified

January 1, 2008

Enrollment Period

6 months

First QC Date

January 16, 2008

Last Update Submit

January 30, 2008

Conditions

Keywords

overweightsedentarymetabolic syndrome

Outcome Measures

Primary Outcomes (1)

  • Fasting plasma glucose level

    10 weeks

Secondary Outcomes (7)

  • Feasability of yoga postures

    10 weeks

  • Adherence to protocol

    10 weeks

  • Blood pressure

    10 weeks

  • Insulin sensitivity

    10 weeks

  • Weight

    10 weeks

  • +2 more secondary outcomes

Study Arms (2)

A

EXPERIMENTAL

Restorative yoga therapy group: one orientation workshop for 3 hours, then twice-weekly group yoga therapy classes for first 5 weeks followed by once-weekly group yoga classes for another 5 weeks. The group will also be asked to practice their yoga postures at home for 30 minutes three times per week.

Behavioral: Restorative yoga therapy

B

NO INTERVENTION

The control group is a wait-list control group with no active intervention.

Interventions

3-hour workshop at study initiation. Then twice-weekly group yoga classes for 5 weeks, then once-weekly group yoga classes for 5 weeks. Home yoga practice for 90 minutes/week throughout the 10 week trial.

A

Eligibility Criteria

Age30 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • to be between the ages of 30 and 65 years,
  • fulfill at least three criteria for the metabolic syndrome per the NCEP guidelines:
  • waist circumference (\>88 cm for women; \>102 cm for men),
  • HDL-cholesterol (\<50 mg/dl for women; \<40 mg/dl for men),
  • triglycerides \>=150 mg/dL
  • fasting glucose \>=100 mg/dL, and/or
  • high blood pressure (\>=130/\>=85 or use of antihypertensive medication), and
  • report an underactive or sedentary lifestyle defined as accumulating less than 30 minutes of moderate intensity endurance exercise 5 days per week.

You may not qualify if:

  • Pregnancy or lactation
  • Coronary heart disease (defined as a myocardial infarction or cardiac intervention with percutaneous transluminal catheterization or coronary artery bypass graft surgery) event or hospitalization in the past 6 months
  • Chronic illnesses: cancer, kidney disease, cirrhosis, rheumatogic diseases, or chronic infections
  • Current use of these medications: oral diabetes medications, insulin, steroid hormones, oral contraceptives, hormone replacement therapy, niacin, fibrates.
  • Regular participation (\>1/week) yoga for past 3 months or concurrent use of yoga
  • Current major psychiatric illness, cognitive impairment, or substance abuse
  • Plans to move out of the study region within 6 months
  • Life-expectancy of \< 6 months
  • Concurrent enrollment in any other studies, experimental therapies, or blinded treatments

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, San Francisco

San Francisco, California, 94115, United States

Location

MeSH Terms

Conditions

Metabolic SyndromeOverweightSedentary Behavior

Condition Hierarchy (Ancestors)

Insulin ResistanceHyperinsulinismGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesOvernutritionNutrition DisordersBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBehavior

Study Officials

  • Alka M. Kanaya, MD

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR
  • Deborah Grady, MD, MPH

    University of California, San Francisco

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER

Study Record Dates

First Submitted

January 16, 2008

First Posted

January 31, 2008

Study Start

October 1, 2006

Primary Completion

April 1, 2007

Study Completion

June 1, 2007

Last Updated

January 31, 2008

Record last verified: 2008-01

Locations