Egg Cholesterol Consumption, Blood Cholesterol and Skeletal Muscle Hypertrophy

Study Overview
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Brief Summary
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The purpose of this study is to examine the effect of dietary cholesterol administered as whole egg or egg white (control)on muscle mass gain with resistance training in a young old population of men and women (age 50-69). It is hypothesized that dietary cholesterol will be significantly associated to muscle mass gain.

Detailed Description
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The primary objective of this proposal is to have 36 men and women (age 50-69) perform 12 weeks of resistance exercise training for the purpose of inducing skeletal muscle hypertrophy. These individuals will consume either 0, 1, or 3 whole eggs per day in a double-blind design to test the hypothesis that dietary cholesterol is essential for skeletal muscle hypertrophy. If so proven, this will confirm a very strong association between dietary cholesterol and hypertrophy observed in a previous study of 51 men and women (age 60-69). The current proposal is using a randomized double-blind, placebo controlled design to provide the most conclusive evidence that dietary cholesterol plays an essential role in skeletal muscle hypertrophy. The secondary objective of this proposal is to test the hypothesis that increased dietary cholesterol consumption in the context of an exercise program does not alter blood cholesterol concentrations or other cardiovascular risk factors.

Official Title
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Egg Cholesterol Consumption, Blood Cholesterol and Skeletal Muscle Hypertrophy

Conditions
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Sarcopenia, Cardiovascular Disease

Intervention / Treatment
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* Behavioral: Resistance Training
* Behavioral: Sedentary


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: men and women aged 50-69 able to perform exercise testing and training Exclusion Criteria: blood pressure > 160/100 cardiac arrhythmias cancer hernia aortic aneurysm kidney disease lung disease total cholesterol > 240 mg/dl or < 160 mg/dl current use of cholesterol lowering medications actively participating in >1 hour per week of resistance training

Ages Eligible for Study
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Minimum Age: 50 Years
Maximum Age: 69 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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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Placebo Comparator: Placebo<br>< 200 mg/day dietary cholesterol, resistance training, sedentary | Behavioral: Resistance Training<br>* 12 weeks, 3 times a week whole body resistance training<br>Behavioral: Sedentary<br>* Absence of physical activity<br>|
| Experimental: Average intake<br>400 mg/day dietary cholesterol, resistance training, sedentary | Behavioral: Resistance Training<br>* 12 weeks, 3 times a week whole body resistance training<br>Behavioral: Sedentary<br>* Absence of physical activity<br>|
| Experimental: High intake<br>800 mg/day dietary cholesterol, resistance training, sedentary | Behavioral: Resistance Training<br>* 12 weeks, 3 times a week whole body resistance training<br>Behavioral: Sedentary<br>* Absence of physical activity<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Primary: Strength and muscle gain (DEXA) |  | after 12 weeks of resistance training | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Secondary: Blood lipids, inflammatory markers, blood pressure |  | after 12 weeks of resistance training | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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aging, sarcopenia, resistance training, strength training, skeletal muscle, elderly, cholesterol, cardiovascular disease, nutrition, inflammation, lipids