Athlete stretching post-workout representing genetics and muscle recovery — PlexusDx Precision Peptide Genetic Test

How Does Genetics Affect Muscle Recovery?

Recovery is where muscle growth actually happens — and your genetics determine how quickly and completely that process runs. IL-6, ACTN3, IGF1, GHSR, VDR, and ACE variants all shape different dimensions of post-exercise repair. The Precision Peptide Genetic Test analyzes all of them across 15 Muscle Growth insights spanning 14 pathways, 49 peptides, and 150+ genetic insights.

Competitive athlete representing genetic testing for athletic performance — PlexusDx Precision Peptide Genetic Test

Can Genetic Testing Predict Athletic Performance?

Not exactly — but it reveals the biological architecture athletic training response is built on. Genetic testing maps predispositions in fiber type (ACTN3), cardiovascular optimization (ACE), anabolic capacity (IGF1), and recovery (IL-6). The Precision Peptide Genetic Test delivers 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Fit athlete representing the genes that affect growth hormone response — PlexusDx Precision Peptide Genetic Test

What Genes Affect Growth Hormone Response?

Multiple genes shape growth hormone response — from GHSR, which triggers GH pulses from the pituitary, to IGF1, which converts that signal into anabolic action, to ACTN3 and MSTN, which determine what the signal builds. The Precision Peptide Genetic Test analyzes all of them as part of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Gym-goer representing the genetics behind why muscle building response varies — PlexusDx Precision Peptide Genetic Test

Why Don't I Build Muscle? Your Genetics May Have Answers

Struggling to build muscle despite consistent training? Genetics may be the missing variable. MSTN, ACTN3, IGF1, GHSR, and VDR variants all influence how your body responds to resistance training stimulus — from hypertrophy ceiling to anabolic signal strength to fiber architecture. The Precision Peptide Genetic Test analyzes 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Fit adult representing genetics of the growth hormone axis peptide response — PlexusDx Precision Peptide Genetic Test

How Your Genetics Shape Growth Hormone Axis Peptide Response

Your response to growth hormone axis pathways isn’t shaped by a single gene — it’s the product of at least eight interacting genetic factors, from GH release (GHSR) to fiber architecture (ACTN3) to recovery capacity (IL-6). The Precision Peptide Genetic Test analyzes all as part of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.

Athlete recovering post-workout representing IL-6 inflammation and muscle recovery genetics — PlexusDx Precision Peptide Genetic Test

IL-6 and Recovery: The Inflammation–Muscle Connection

IL-6 is widely known as an inflammatory cytokine — but in muscle biology it also functions as a myokine: a recovery signal produced by contracting muscle that drives satellite cell activation and repair. The Precision Peptide Genetic Test analyzes IL6 variants as one of 15 Muscle Growth insights across 14 pathways, 49 peptides, and 150+ genetic insights.