Last reviewed: May 12, 2026 Last updated: May 12, 2026

Written by: Jay Hastings , CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

Insights into genetic traits help you optimize your fitness and health

Your fitness level depends heavily on Aerobic Capacity which functions as a key genetic trait. This blog post examines why Aerobic Capacity matters for your fitness and recovery while providing actionable strategies to enhance it. Maximal oxygen uptake (VO2 max) represents your Aerobic Capacity which serves as a vital biomarker for measuring how effectively your body utilizes oxygen while exercising. Athletes who achieve higher VO2 max readings demonstrate increased ability to perform demanding cardio exercises including running and swimming. The genetic trait that indicates your aerobic fitness level offers multiple health benefits which encompass enhanced cardiovascular and pulmonary functions along with mental health maintenance, longer lifespan and stronger immune response while boosting cognitive abilities. Genetic factors account for 45% to 70% of the variation seen in different people's VO2 max levels. VO2 max is affected by several other factors such as gender and age along with body composition and overall health status. After the age of 30 humans experience an average VO2 max reduction rate of about 2% annually. People who exercise regularly can boost their VO2 max by as much as 30%, which is especially beneficial for individuals who lead sedentary lifestyles. Research indicates that genetic variants which result in lower VO2 max levels increase susceptibility to obesity, high cholesterol, heart disease, diabetes, Alzheimer's disease, Parkinson's disease and reduce lifespan. Studies show that men possess higher VO2 max measurements than women while body composition together with health status and weight alter these measurements. The VO2 max decreases when individuals reside at higher altitudes despite their bodies adapting over time. The following practical recommendations aim to enhance your fitness recovery and boost your Aerobic Capacity. You can increase your VO2 max by consistently practicing aerobic activities like running, cycling or swimming. 2. A balanced diet combined with consistent physical activity helps maintain optimal body weight and composition. 3. Keep track of your health status at regular intervals and treat any hidden medical problems that could affect your aerobic capacity. 4. Develop your VO2 max through a personalized exercise program which you can design with the help of healthcare professionals or fitness specialists. 5. Start improving your aerobic capacity through recommended dietary and lifestyle modifications that align with your genetic predispositions. Identifying your genetic trait related to Aerobic Capacity delivers important information about your potential fitness level and general health status. Optimizing your VO2 max through specific actions will lead to better aerobic fitness capabilities and recovery rates while promoting overall healthier living. You can learn more about your genetic characteristics related to fitness and recovery by trying the Precision Health & Wellness tests available through PlexusDx at their website PlexusDx.com as well as Amazon and Walmart. Begin your path to becoming healthier and more fit right now!

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.