Know Your Genes: NOS3 – “The Nitric Oxide Gene”
March 6, 2017
Know Your Genes: ADRB2 – “The Adrenaline Gene”
March 10, 2017

Know Your Genes: VEGFA – “The New Blood Vessel Growth Gene”

Aerobic Capacity

The Vascular Endothelial Growth Factor (VEGFA) gene is associated with the synthesis VEGFA, a molecule associated with the formation of new blood vessels (angiogenesis) upon training. This adaptation allows the body to increase supply of nutrients and oxygen to the trained muscles as well as remove waste products. VEGFA is associated indirectly with the widening of blood vessels (vasodilation).  Blood flow to the muscles is increased as VEGFA triggers nitric oxide and other molecules which relax the blood vessels. Specific alleles of this gene are known to either increase or decrease the levels of VEGFA during and after exercise. People with the G variant of the gene were associated with lower level of the protein VEGFA.

Association with Running:

A study conducted on cyclists showed that people with the C variant of the gene were more common among endurance athletes than non-athletes.

Association with Aerobic Capacity:

People with the C variant of the gene were associated with better aerobic capacity and significant increase in VO2 max after 24 weeks of aerobic training when compared with people with the G variant of the gene.






CC [Advantage] More likely to have higher level of VEGFA on exercising

[Advantage] More likely to significantly improve VO2 max with training

[Advantage] More likely to have better aerobic capacity

[Advantage] Better endurance

  • Likely to respond well to aerobic training and endurance training
CG Moderate level of VEGFA on exercising and moderate aerobic capacity
  • Likely to respond moderately to aerobic training and endurance training
GG [Limitation] More likely to have lower level of VEGFA on exercising compared to CC

[Limitation] More likely to have lower VO2 max after exercising

[Limitation] More likely to have lower aerobic capacity

[Limitation] Poor endurance

  • Likely poor responder to endurance running due to low amount of new blood vessel formation in the targeted muscle.
  • Mild improvements in aerobic capacity and endurance performance on carrying out aerobic fitness training can be expected.


Find out which variation of the gene you carry and more at

Nutrigenetics, fitness genetics, health genetics are all nascent but rapidly growing areas within human genetics. The information provided herein is based on preliminary scientific studies and it is to be read and understood in that context.”


Xcode is a pioneer in personal genomics, focussed on enabling personalized preventive healthcare. We are dedicated to empowering physicians, wellness professionals and customers with the most validated, accurate and actionable genomic information to positively impact and improve their client’s health and quality of life.

Comments are closed.