NCT04015479

Peanut Protein Supplementation to Augment Muscle Growth and Improve Markers of Muscle Quality and Health in Older Adults

Open-label Randomized Controlled Trial Investigating the Effects of Peanut Protein Powder Supplement on Muscle Growth, Muscle Quality and Other Health Biomarkers in Older Adults Engaging in a Ten-week, Whole-body Resistance Training Program

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 41 (actual)
• Sponsor: Auburn University · Academic / Other
• Sex: All
• Age: 50 Years – 80 Years
• Healthy volunteers: Accepted

Summary

This study will evaluate the adaptations in skeletal muscle that occur in response to 10 weeks of weight training with or without peanut protein supplementation in older adult men and women.

Detailed description

Aging is associated with declines in muscle mass, physical strength and physical function. Adequate quality protein intake in aging adults is critical to preventing functional decline. Peanuts provide a unique blend of amino acids that can provide several health benefits to aging adults. While supplementing with peanut protein (PP) powder as part of a resistance training program may increase myofibrillar protein synthesis (i.e., the gold standard molecular assessment in deciphering a muscle-building response), and improve skeletal muscle quality and body composition, no study to date has made this determination. This is a two-phase study using both novel and conventional methods to assess how PP supplementation affects muscle tissue in older individuals who engage in resistance training. These two phases will be conducted as part of a 10-week randomized controlled trial in which men and women aged 50 years and older (n=60), will be stratified by gender and randomized to a resistance training intervention (whole body, two days per week) with PP powder (72g daily; n=15 males, n=15 females) provided during the intervention (immediate group, IG) or after the intervention (wait-list control, WLC, n=15 males, n=15 females). The aims of this study are to determine the acute (deuterium oxide tracer) and chronic (peripheral quantitative computed tomography) effects of PP during resistance training on skeletal muscle myofibrillar protein synthesis rates, changes in skeletal muscle size and quality, changes in whole and appendicular body composition (dual energy x-ray absorptiometry), changes in inflammatory markers and the fecal microbiome.

Conditions

• Aging
• Sarcopenia

Interventions

Type	Name	Description
DIETARY_SUPPLEMENT	Peanut Protein Powder	Peanut protein powder will be provided to participants who will be instructed to consume 72g daily, mixed with water
BEHAVIORAL	Full body resistance training	Participants will undergo supervised resistance training two times per week (5 exercises, 3 sets of 8-12 repetitions per set)

Timeline

• Start date: 2019-09-26
• Primary completion: 2020-05-01
• Completion: 2020-05-01
• First posted: 2019-07-11
• Last updated: 2021-01-12

Locations

1 site across 1 country: United States