Resistance Training and Milk Supplementation

Muscular Hypertrophy Clinical Trial

Official title:

Effects of High-protein Milk Supplementation on Muscular Strength and Power, Body Composition, and Skeletal Muscle Regulatory Markers Following Heavy Resistance Training in Resistance-trained Men

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04509297
• Other study ID #: Sports sciences institute.1396
• Status: Completed
• Phase: N/A
• Start date: January 4, 2018
• Est. completion date: May 5, 2018

Study information

• Verified date: August 2020
• Source: Marymount University
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Post-resistance training high protein milk supplementation may be a viable method to elicit muscular gains.

The investigators hypothesis is that high protein milk supplementation would improve skeletal regulatory markers, hormonal responses and body composition in resistance-trained men.

Description:

The aim of this investigation was to compare the effects of high protein milk supplementation (daily and after training sessions) during 6 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 high protein milk supplementation will improve anabolic factors, lean body mass, fat mass and decrease catabolic markers after 6 weeks of resistance training in resistance-trained men.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 30
• Est. completion date: May 5, 2018
• Est. primary completion date: May 5, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years to 35 Years

Eligibility

Inclusion Criteria:

• Aged 18-35 years of age

• Healthy Males

• Experienced at resistance training (at least 1 year of prior structured resistance training 3 x week).

Exclusion Criteria:

• smoking

• chronic alcohol consumption

• having any medical issues and diseases

• lactose intolerance

• the consumption of any dietary supplements (including vitamins or protein supplements) or medications for 6 months prior to participation

Related Conditions & MeSH terms

• Hypertrophy
• Muscular Hypertrophy

Intervention

Dietary Supplement:
• high protein milk
This intervention consisted of high protein milk consumption concomitant with 6 weeks of resistance training. Subject ingested consumed 1 x 250 mL immediately after resistance training and 1 x 250 mL half an hour before bedtime.
• Placebo
This intervention consisted of the consumption of a maltodextrin drink with a 9% solution with a vanilla flavor concomitant with 6 weeks of resistance training. Subject ingested consumed 1 x 250 mL immediately after resistance training and 1 x 250 mL half an hour before bedtime.

Locations

Country	Name	City	State
United States	Marymount University	Arlington	Virginia

Sponsors (2)

Lead Sponsor	Collaborator
Marymount University	University of Tehran

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Circulatory Myokines levels	Fasting blood samples were collected from the antecubital vein using standard procedures and then analyzed to establish concentration of myostatin and follistatin.	6 weeks
Primary	Circulatory hormone levels	Fasting blood samples were collected from the antecubital vein using standard procedures and then analyzed to establish concentrations of testosterone, IGF-1, growth hormone, insulin and cortisol	6 weeks
Primary	Body composition	Lean body mass and body fatness will be evaluated using bioelectrical impedance	6 weeks
Secondary	Muscular Strength	Using a 1 repetition maximum test (defined as the maximal weight an individual can lift for only one repetition) for the bench press and back squat exercises	6 weeks
Secondary	Muscular Power	Using the Wingate test	6 weeks