Running
Classic endurance training — the easiest path to better conditioning and VO₂max.
Execution
- Relaxed posture, steps natural, torso tilted slightly forward.
- Land on the mid-foot (not pure heel) to reduce impact.
- Breathe evenly — on easy runs 3 steps in, 3 out; at harder paces 2/2.
- Increase weekly mileage by no more than 10 % (the 10 % rule).
Tips
- Beginners start with walk/run intervals (1 min run, 1 min walk).
- Shoes and a running watch help, but consistency beats any gear.
Why running works so well
Cardiorespiratory fitness — measured as maximal oxygen uptake, VO₂max — is one of the most predictive single markers for health. It drops by roughly ten percent per decade starting in your thirties if you do nothing. Running is the most direct, least equipment-dependent way to push back against that.
Distribution matters more than volume
The most common mistake isn't too little training but too much medium pace. Always running at a brisk clip lands you in zone 3 — too hard for the adaptations of base endurance, too easy for the stimulus of hard intervals. A better split: most of it easy in zone 2, at 60 to 70 percent of max heart rate, with a small portion noticeably harder.
You don't need a heart rate monitor to check this: in zone 2 you can speak in full sentences and breathe through your nose, but not sing. If you can't hold a conversation while running, you're going too fast.
Common mistakes
- Starting too fast. The heart and circulatory system adapt faster than tendons and bones. The body can handle the pace; the structures often can't.
- Increasing volume too quickly. A rough rule of thumb is ten percent more per week.
- No easy days. Adaptation happens during recovery, not during the stimulus.
Programming
Three to four sessions a week, two to three of them easy and at most one intense. For beginners, a walk/run mix is a more sustainable start than continuous running.