Egg Consumption and Muscular Adaptations

Alexei Wong30 enrolled

Overview

Eggs may be a viable alternative to various types of supplemental proteins given its similar ratings on various measures of dietary protein quality. The investigators hypothesis is that whole eggs would create a greater improvement in skeletal regulatory markers, hormonal responses and body composition than egg white ingestion in resistance-trained men.

The aim of this investigation was to compare the effects of whole egg versus egg white ingestion (daily and after training sessions) during 12 weeks of resistance training on skeletal muscle regulatory markers, hormonal responses and body composition in resistance-trained men. Specific aims of the study are to: To investigate the extent to which both whole egg and egg white ingestion will improve anabolic factors, fat free mass, fat mass and decrease catabolic markers after 12 weeks of resistance training in resistance-trained men.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

BASIC_SCIENCE

Masking

SINGLE

Enrollment

Conditions

Hypertrophy

Interventions

Whole egg and resistance trainingDIETARY_SUPPLEMENT

This intervention consisted of whole egg consumption concomitant with 12 weeks of resistance training. Subject ingested three whole eggs per day immediately after resistance training.

Egg whites and resistance trainingDIETARY_SUPPLEMENT

This intervention consisted of egg white consumption concomitant with 12 weeks of resistance training. Subject ingested an isonitrogenous quantity of six egg whites per day immediately after resistance training.

Eligibility

Sex: MALEMin age: 18 YearsMax age: 30 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * performing resistance training at least three times a week for 1 year prior to the start of the study * not taking any dietary supplements or medications for at least 1 year prior to the start of the study * no known medical issues * no alcohol consumption or smoking for at least 1 year prior to the start of the study * no egg allergy/sensitivity. Exclusion Criteria: * non-willingness to continue nutritional or exercise protocols * participation in exercise other than the prescribed resistance training program * consumption of dietary supplement (other than egg) during the study period * Missing more than one resistance training session or post-exercise egg consumption throughout the study period

Locations (1)

Marymount University

Arlington, Virginia, United States

Outcomes

Primary Outcomes

Circulatory Myokines levels

Fasting blood samples were collected from the antecubital vein using standard procedures and then analized to establish concentration of myostatin, follistatin, FGF-2, TGF-β1 and ACVA.

Time frame: 12 weeks

Circulatory hormone levels

Fasting blood samples were collected from the antecubital vein using standard procedures and then analized to establish concentrations of testosterone, IGF-1, insulin and cortisol

Time frame: 12 weeks

Muscle mass

Skeletal muscle mass will be evaluated using computed tomography

Time frame: 12 weeks

Body fatness

Body fat will be evaluated using bioelectrical impedance

Time frame: 12 weeks

Secondary Outcomes

Muscular Strength

Using 1 repetition maximum

Time frame: 12 weeks

Data from ClinicalTrials.gov

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