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OpenTrials
Completed

NCT Number: NCT04509297

Resistance Training and Milk Supplementation

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.

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Key information

Conditions

Muscular Hypertrophy Hypertrophy Pathological Conditions, Anatomical Pathological Conditions, Signs and Symptoms

Age range

18 year–35 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Marymount University

Arlington, Virginia, 22207, United States

About this study

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.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

high protein milk

Dietary Supplement

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

Dietary Supplement

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.

Primary outcomes

  1. Circulatory Myokines levels

    Time frame: 6 weeks

    Fasting blood samples were collected from the antecubital vein using standard procedures and then analyzed to establish concentration of myostatin and follistatin.

  2. Circulatory hormone levels

    Time frame: 6 weeks

    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

  3. Body composition

    Time frame: 6 weeks

    Lean body mass and body fatness will be evaluated using bioelectrical impedance

Secondary outcomes

  1. Muscular Strength

    Time frame: 6 weeks

    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

  2. Muscular Power

    Time frame: 6 weeks

    Using the Wingate test

Sponsors and collaborators

Lead sponsor

Marymount University

Other

Collaborators

  • University of Tehran

Registry information

Official study 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

Important dates

Study start
2018
Primary completion
2018
Study completion
2018
First posted
Aug 12, 2020
Registry last updated
Aug 12, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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