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In 2026, the technology in running shoes is incredible. We have carbon plates, "super foams," and GPS watches that tell us our exact recovery time. But the most important technology isn't on your feet—it’s inside your veins.
If you are training for a marathon, you are asking your body to perform at its absolute limit. To hit a Personal Best (PB), your internal systems need to be perfectly calibrated. Here are the three "hidden" metrics that determine your race day success:
Vitamin D isn't just for bone health. It’s a pro-hormone that directly affects muscle fiber contraction and explosive power. Even in sunny Australia, many runners are deficient because we train in the early morning or late evening. Low Vitamin D is a leading cause of the "heavy leg" feeling in the final 10km of a marathon.
Running a marathon creates systemic inflammation. If your baseline inflammation (CRP) is already high due to poor recovery or diet, you are at a much higher risk of injury during your peak training weeks. Monitoring CRP tells you when to push and when to take an extra rest day.
B12 is essential for red blood cell production. If your B12 is sub-optimal, your "aerobic ceiling" is lowered. You might find your heart rate spiking higher than it should at your goal marathon pace.
At SuperRun, we believe every runner should have access to their own data. No waiting weeks for a GP appointment. Just order your test, visit a collection centre, and get your data.
Ready to crush your 42.2? Get the data you need to train smarter. [Browse our Elita Panel.
Disclaimer: Information provided is for educational use. Consult a professional before making major dietary or training changes.
