Alpha-glycerylphosphorylcholine for Muscular Performance
(A-GPC Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial explores how a supplement called alpha-glycerylphosphorylcholine (A-GPC) affects muscle strength, endurance, and power. The goal is to determine if A-GPC can improve these aspects of muscular performance. Participants will receive either the A-GPC supplement or a placebo (a pill with no active ingredient). The trial seeks college-aged males who exercise regularly and do not have health issues like heart or liver problems. As an unphased trial, it offers participants the chance to contribute to pioneering research in sports nutrition and potentially enhance their own athletic performance.
Will I have to stop taking my current medications?
Yes, you must stop taking any medications to participate in this trial.
Is there any evidence suggesting that this trial's treatments are likely to be safe?
Research has shown that Alpha-GPC is generally safe for use. Studies have found it is usually well-tolerated, though some individuals might experience mild side effects like headaches or mental fogginess, especially with an initial high dose. Importantly, the body absorbs Alpha-GPC as choline, a nutrient safe for many, including breastfeeding individuals. While minor side effects can occur, current research considers the treatment safe.12345
Why are researchers excited about this trial?
Unlike traditional supplements for boosting muscular performance, which often include creatine or branched-chain amino acids, alpha-glycerylphosphorylcholine (Alpha-GPC) is unique because it is a naturally occurring choline compound that enhances acetylcholine production, a key neurotransmitter involved in muscle contraction. This mechanism could potentially lead to improved muscle performance by optimizing nerve signal transmission to muscles. Researchers are excited about Alpha-GPC because it offers a novel approach to enhancing physical performance, potentially providing quicker and more efficient results than current options.
What evidence suggests that Alpha-glycerylphosphorylcholine might be an effective treatment for muscular performance?
Research suggests that Alpha-glycerylphosphorylcholine (A-GPC) might improve muscle performance. In one study, participants who took A-GPC for six days showed stronger lower body muscles. Another study found that taking A-GPC for seven days increased muscle power in trained cyclists. However, not all research agrees, as some studies did not find an increase in power. In this trial, participants in the supplement group will receive A-GPC to evaluate its effects on muscle strength and power, particularly in the lower body.26789
Who Is on the Research Team?
Clayton Camic, PHD
Principal Investigator
Northern Illinois University
Are You a Good Fit for This Trial?
This trial is for college-aged, recreationally-trained males who are healthy and not currently taking any medications or nutritional supplements. They should not have a habit of consuming caffeine daily or have cardiovascular, metabolic, renal, hepatic, or musculoskeletal disorders.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Treatment
Participants receive oral Alpha-GPC (900 mg) or placebo and undergo muscle activation and strength testing
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- Alpha-glycerylphosphorylcholine
Trial Overview
The study is testing the immediate effects of A-GPC on muscle strength, endurance, power, and overall activation in comparison to a placebo (Microcrystalline Cellulose) in lower body exercises.
How Is the Trial Designed?
2
Treatment groups
Experimental Treatment
Placebo Group
Oral Alpha-GPC (900 mg)
Oral microcrystalline cellulose
Find a Clinic Near You
Who Is Running the Clinical Trial?
Northern Illinois University
Lead Sponsor
Mayo Clinic
Collaborator
Citations
The effect of 6 days of alpha glycerylphosphorylcholine ... - PMC
The results of the study suggest that A-GPC is effective at increasing lower body force production after 6 days of supplementation. A similar ...
Acute Effects of Alpha-glycerylphosphorylcholine (A-GPC) ...
The purpose of the present study was to examine the effectiveness of acute A-GPC supplementation on upper and lower body muscular strength, ...
Acute Alpha-Glycerylphosphorylcholine Supplementation ...
[15] reported that muscular power was improved in 30 male trained cyclists after seven days of supplementing with 300 mg of A-GPC, but the A-GPC was provided ...
4.
examine.com
examine.com/research-feed/study/dVRA5d/?srsltid=AfmBOooHAZQnOSr73IGUPlRAYthEZZ2tSZF02vtCeUcYPwhC17fLweSlAlpha-GPC for mental and physical performance - Study ...
Alpha-GPC did not improve power output. The two different doses of alpha-GPC had similar effects on all outcomes. NNB Nutrition, the ...
Alpha-GPC Shown To Increase Lower Body Force ...
Alpha-GPC was 68.3% likely beneficial for increasing upper body isometric force, and 86.5% likely beneficial for increasing lower body isometric force ...
6.
examine.com
examine.com/supplements/alpha-gpc/?srsltid=AfmBOooGVK3XuptG25YOTGMHkGtNQBMwpfIW2EOF3J-eXRu6GRm_hPw8Alpha-GPC benefits, dosage, and side effects
Given that alpha-GPC is predominantly metabolized to and absorbed as choline, it is most likely safe while breastfeeding. However, the safety of alpha-GPC ...
Safety evaluation of alpha-glycerylphosphorylcholine as a ...
In the present study, high level α-GPC was produced by chemical synthesis, then further safety assessment were performed as a novel food.
Benefits of Alpha-GPC: Dosage, Safety & Risks Guide
Alpha-GPC is potent and can cause headaches or brain fog in some users if the dose is too high initially. Safety & The TMAO "Elephant in the ...
The effects of alpha-glycerylphosphorylcholine, caffeine or ...
Alpha-glycerylphosphorylcholine (Alpha-GPC) and caffeine supplementation have been shown to improve mental and physical performance.
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