Hypertrophy
Conditions
Brief summary
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.
Detailed description
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.
Interventions
DIETARY_SUPPLEMENTWhole egg and resistance training
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.
DIETARY_SUPPLEMENTEgg whites and resistance training
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.
Sponsors
Tehran University
Alexei Wong
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
MALE
Age
18 Years to 30 Years
Healthy volunteers
Yes
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Muscle mass | 12 weeks | Skeletal muscle mass will be evaluated using computed tomography |
| Circulatory hormone levels | 12 weeks | 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 |
| Circulatory Myokines levels | 12 weeks | 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. |
| Body fatness | 12 weeks | Body fat will be evaluated using bioelectrical impedance |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Muscular Strength | 12 weeks | Using 1 repetition maximum |
Countries
United States
Outcome results
None listed