Efficacy of a Tea Catechin Sports Drink for Enhancing Exercise-Induced Fat Loss

Study Overview
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Brief Summary
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The primary objective of this trial is to evaluate the influence of consuming a tea catechin containing sports beverage on body fat mass during exercise-induced weight loss among overweight and obese men and women.

Detailed Description
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The study will include two screening/baseline visits and six treatment visits over 12 weeks. During the treatment phase of the study, subjects will be instructed to consume one bottle of sports drink (500 ml) daily (total consumption of tea catechins in the active group = 540 mg/d). Subjects will be asked to maintain a constant energy intake throughout the study period. Three-day diet records will be collected and analyzed at weeks 0, 6, and 12 to evaluate consistency of energy intake. 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

Official Title
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A Randomized, Double-Blind, Controlled Study to Assess the Efficacy of a Tea Catechin Sports Drink for Enhancing Exercise-Induced Fat Loss

Conditions
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Overweight, Obesity

Intervention / Treatment
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* Dietary Supplement: 500 mL/day of a beverage providing approximately 625 mg catechins
* Other: Control beverage matched for energy and caffeine content


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Men and women 21 to 65 years of age, inclusive 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: Volunteers with Body mass index ≥ 40.0 kg/m2 or < 25.0 kg/m2; 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

Ages Eligible for Study
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Minimum Age: 21 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Active<br>Tea catechin sport beverage | Dietary Supplement: 500 mL/day of a beverage providing approximately 625 mg catechins<br>* Subjects were asked to consume 500 mL/day of a beverage providing approximately 625 mg catechins<br>|
| Control<br>Control beverage | Other: Control beverage matched for energy and caffeine content<br>* 500 mL/day of a control beverage<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Changes in body fat mass. |  | Baseline to end-of-treatment | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Changes in body weight |  | Baseline to end-of-treatment | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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green tea,, polyphenols,, weight loss,, body fat