Efficacy of a Tea Catechin Sports Drink for Enhancing Exercise-Induced Fat Loss
NCT ID: NCT00692731
Last Updated: 2008-06-06
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
132 participants
OBSERVATIONAL
2006-06-30
2007-08-31
Brief Summary
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Detailed Description
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All subjects will engage in an exercise program with a goal of maintaining 180 min/week of low- to moderate-intensity exercise (e.g., walking and other aerobic activities, 4-6 days per week). Three of the weekly exercise sessions will be supervised and 1-3 will be unsupervised. Subjects will be asked to wear a pedometer and record their daily physical activity (steps) each night in a physical activity diary. Diaries will be collected at each visit and used to evaluate exercise compliance. Dual energy X-ray absorptiometry (DEXA) and computed tomography (CT) scans will be performed at baseline (week 0) and at the end of the treatment (week 12). Additionally, body weight and abdominal circumference will be assessed at every clinic visit during the study. It is anticipated that subjects will expend 1000-1800 kcal per week above their baseline level in deliberate physical activity. Accordingly, the control group is expected to lose 1.5 to 2.8 kg of body fat during the 12-week treatment period
Conditions
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Keywords
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Active
Tea catechin sport beverage
500 mL/day of a beverage providing approximately 625 mg catechins
Subjects were asked to consume 500 mL/day of a beverage providing approximately 625 mg catechins
Control
Control beverage
Control beverage matched for energy and caffeine content
500 mL/day of a control beverage
Interventions
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500 mL/day of a beverage providing approximately 625 mg catechins
Subjects were asked to consume 500 mL/day of a beverage providing approximately 625 mg catechins
Control beverage matched for energy and caffeine content
500 mL/day of a control beverage
Eligibility Criteria
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Inclusion Criteria
* Waist circumference ≥ 87 cm for women and ≥ 90 cm for men at screening
* Total cholesterol ≥ 200 mg/dL
* Provide written informed consent and authorization for protected health information
Exclusion Criteria
* Recent weight loss of more than 4.5 kg;
* Recent use of any weight loss medications, supplements, or programs;
* History of weight-reducing surgery or an eating disorder
* Pregnancy
21 Years
65 Years
ALL
Yes
Sponsors
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Kao (Taiwan) Corporation
INDUSTRY
Provident Clinical Research
OTHER
Responsible Party
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Provident Clinical Research
Principal Investigators
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Kevin C Maki, PhD
Role: STUDY_DIRECTOR
Provident Clinical Research
Locations
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Meridien Research
St. Petersburg, Florida, United States
Provident Clinical Research
Bloomington, Indiana, United States
Countries
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References
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Murase T, Nagasawa A, Suzuki J, Hase T, Tokimitsu I. Beneficial effects of tea catechins on diet-induced obesity: stimulation of lipid catabolism in the liver. Int J Obes Relat Metab Disord. 2002 Nov;26(11):1459-64. doi: 10.1038/sj.ijo.0802141.
Dulloo AG, Duret C, Rohrer D, Girardier L, Mensi N, Fathi M, Chantre P, Vandermander J. Efficacy of a green tea extract rich in catechin polyphenols and caffeine in increasing 24-h energy expenditure and fat oxidation in humans. Am J Clin Nutr. 1999 Dec;70(6):1040-5. doi: 10.1093/ajcn/70.6.1040.
Nagao T, Komine Y, Soga S, Meguro S, Hase T, Tanaka Y, Tokimitsu I. Ingestion of a tea rich in catechins leads to a reduction in body fat and malondialdehyde-modified LDL in men. Am J Clin Nutr. 2005 Jan;81(1):122-9. doi: 10.1093/ajcn/81.1.122.
Nagao T, Hase T, Tokimitsu I. A green tea extract high in catechins reduces body fat and cardiovascular risks in humans. Obesity (Silver Spring). 2007 Jun;15(6):1473-83. doi: 10.1038/oby.2007.176.
Other Identifiers
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PRV-06001
Identifier Type: -
Identifier Source: org_study_id