Example - how badly do you not want to run today (6/10). Why not 10/10? Because I'll feel better after, because it's part of my marathon training and because dinner will feel more rewarding. Ok, go run.
Example - how badly do you not want to run today (6/10). Why not 10/10? Because I'll feel better after, because it's part of my marathon training and because dinner will feel more rewarding. Ok, go run.
[1] Unless you're injured and stubbornly push your body through it.
Also, even if you walk back home after an injury, you might regret running. You started your run able to run, now you're disabled!
If your body is utterly out of shape, i.e. you're morbidly obese, you don't start with running. You start with walking and slowly move to running. In that case, you won't regret walking, not running.
If you're 100lbs overweight, it's roughly the same effort & same strain on joints as a person 100lbs lighter carrying a 100lb backpack.