Repeat-Sprint Ability vs VO₂ Max: How Much Does Your Engine Really Matter in Intermittent High-Intensity Sports?

Repeat-Sprint Ability vs VO₂ Max: How Much Does Your Engine Really Matter in Intermittent High-Intensity Sports?

Repeat-sprint ability (RSA) defines how well athletes sustain explosive efforts with short recoveries. VO₂ Max doesn’t set sprint speed but drives recovery—faster PCr recharge, quicker clearance, and less drop-off late in games. Elite performance blends aerobic capacity with targeted RSA training.

VO₂ Max and All-Cause Mortality: The Data You Can’t Ignore

VO₂ Max and All-Cause Mortality: The Data You Can’t Ignore

Low VO₂ Max is a stronger predictor of early death than smoking, diabetes, or hypertension. Massive studies show every small increase in VO₂ Max lowers mortality risk, with no upper limit to the benefits. For independence, aim for ~20 ml/kg/min; for longevity protection, 40+ is the sweet spot.

VO₂ Max and Resilience to Illness, Surgery, and Stress

VO₂ Max and Resilience to Illness, Surgery, and Stress

VO₂ Max isn’t just about performance—it’s your aerobic reserve. Higher VO₂ Max improves recovery from illness, surgery, and stress by providing more energy for immune function, healing, and rehab. Patients with higher VO₂ Max have fewer complications, shorter hospital stays, and better outcomes.

VO₂ Max and Aging: What’s Normal vs. What’s Preventable

VO₂ Max and Aging: What’s Normal vs. What’s Preventable

VO₂ Max naturally declines with age—about 10% per decade after 30. But research shows that 50–70% of this decline is preventable with consistent aerobic training. Zone 2 and Zone 4 workouts can preserve heart function, mitochondria, and muscle, keeping VO₂ Max above the independence threshold (20 ml/kg/min) well into later decades. In other words, aging lowers your ceiling—but training decides how steep the slope gets.

Why VO₂ Max Is a Vital Sign (and Should Be Treated Like One)

Why VO₂ Max Is a Vital Sign (and Should Be Treated Like One)

VO₂ Max is a vital sign that predicts health, longevity, and resilience better than blood pressure, heart rate, or glucose. It’s measurable, repeatable, actionable, and trainable. High VO₂ Max offsets disease risk, supports recovery, and shows how much aerobic reserve you truly have—treat it like your body’s foundation.