Muscle Growth Following a Resistance Training Program in Men and Women Consuming Protein Supplements
- Conditions
- Skeletal Muscle Growth
- Registration Number
- NCT03868631
- Lead Sponsor
- Point Loma Nazarene University
- Brief Summary
Soy and whey protein have different concentrations of leucine, an amino acid known to be a particularly potent simulator of muscle protein synthesis. The purpose of this study is to determine whether matching soy and whey protein supplements for leucine content instead of by total protein content would contribute to differences in strength increases and muscle growth in response to 12 wk of resistance training.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 61
- non-smoking
- body mass index (BMI) 18.5-24.9
- recreationally active
- participated in structured weight training during the previous 12 month
- vegetarian or vegan
- presence of chronic disease
- pregnant, postpartum up to six months, lactating, or intention to become pregnant
- allergy to whey or soy
- changes in body weight more than 10 pounds in the past three months
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Primary Outcome Measures
Name Time Method Lean Body Mass Change Post-12 week intervention assessed using dual energy x-ray absorptiometry (DEXA) scan for changes in lean body mass (kg)
Leg Girth Changes Post-12 week intervention assessed using circumference measurements (cm)
Muscle Tissue Thickness Change Post-12 week intervention assessed using changes in muscle thickness assessed by ultrasound (cm)
- Secondary Outcome Measures
Name Time Method Change in Peak Torque When Doing Leg Extensions Post-12 week intervention Assessed using an isokinetic dynamometer set at 60 degrees of motion per second (d/s)
Trial Locations
- Locations (1)
Arizona State University
🇺🇸Phoenix, Arizona, United States
Arizona State University🇺🇸Phoenix, Arizona, United States