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Effect of Protein Blend Supplementation During Exercise Training on Muscle Growth and Strength

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified June 2014 by Solae, LLC.
Recruitment status was:  Active, not recruiting
Information provided by (Responsible Party):
Solae, LLC Identifier:
First received: November 15, 2012
Last updated: June 3, 2014
Last verified: June 2014
This study will investigate the effects of a soy/dairy protein blend on muscle growth and strength. In sports nutrition and in aging it is important to have healthy muscles. This can be achieved with exercise and nutrition. Consumption of protein following resistance exercise can promote healthy muscle growth and help improve strength. Young healthy men will be studied during a 12 week resistance exercise training program and be given protein supplements every day during the study. The hypothesis is that a blend of soy, whey and casein will induce a greater muscle gain and strength increase than the control.

Condition Intervention
Muscle Dietary Supplement: Blend Dietary Supplement: Whey Dietary Supplement: Placebo

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Official Title: A Randomized, Controlled Double Blind Longitudinal Study: Effect of Protein Blend Supplementation During Exercise Training on Muscle Growth and Strength

Resource links provided by NLM:

Further study details as provided by Solae, LLC:

Primary Outcome Measures:
  • Change in Muscle Mass [ Time Frame: Baseline, 6 weeks, 12 weeks ]
    Muscle Mass will be determined by DEXA

Secondary Outcome Measures:
  • Change in Muscle Strength [ Time Frame: Baseline, 6 weeks, 12 weeks ]
    Knee Extensor

Estimated Enrollment: 60
Study Start Date: July 2012
Estimated Study Completion Date: June 2015
Primary Completion Date: May 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Placebo Comparator: Placebo
Placebo dry blended beverage (carbohydrate)
Dietary Supplement: Placebo
22 grams of carbohydrate/day
Experimental: Blend
A dry blended beverage containing a protein blend of soy, whey and casein
Dietary Supplement: Blend
22 grams of protein/day
Active Comparator: Whey
A dry blended beverage containing Whey protein
Dietary Supplement: Whey
22 grams of protein/day


Ages Eligible for Study:   18 Years to 35 Years   (Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Stable body weight, healthy, males aged 18-35

Exclusion Criteria:

  1. Exercise training (>2 weekly sessions of moderate to high intensity aerobic or resistance exercise)
  2. Resistance Training (>2 weekly sessions of moderate to high intensity) within the past six months
  3. Any orthopedic injury that prohibits participation in the exercise training
  4. Significant heart, liver, kidney, blood, or respiratory disease
  5. Peripheral vascular disease
  6. Diabetes mellitus or other untreated endocrine disease
  7. Active cancer (all groups) and history of cancer
  8. Acute infectious disease or history of chronic infections (e.g. TB, hepatitis, HIV, herpes)
  9. Recent (within 6 months) treatment with anabolic steroids, or corticosteroids.
  10. Alcohol or drug abuse
  11. Tobacco use (smoking or chewing)
  12. BMI range will be (20-29.9 kg/m2) to exclude for Malnutrition (hypoalbuminemia, and/or hypotransferrinemia) and Obesity
  13. Low hemoglobin levels (below normal values)
  14. Food allergies (including milk and soy)
  15. Individuals on a Vegetarian Diet
  16. Females
  17. Average protein intake < 0.6 or >1.8 g/kg per day
  18. Taking dietary supplements such as green tea, creatine, ribose, whey or soy protein, etc. within the past 6 months
  19. Currently on a high-soy diet or high dairy diet (consuming >2 servings of soy per day or >6 servings of dairy)
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01749189

United States, Texas
University of Texas Medical Branch
Galveston, Texas, United States, 77555
Sponsors and Collaborators
Solae, LLC
Principal Investigator: Blake Rasmussen, PhD University of Texas
Principal Investigator: Mark B Cope, PhD Solae, LLC
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Solae, LLC Identifier: NCT01749189     History of Changes
Other Study ID Numbers: CRC-D-179
Study First Received: November 15, 2012
Last Updated: June 3, 2014

Keywords provided by Solae, LLC:
protein processed this record on September 19, 2017