Just done week 1 and after each session feel like I’m dying! 57 and at least 3 stone overweight 😉
My question is how fast is a run? I use a treadmill and alternate between walking at 2mph and jogging at 4mph (I know 4mph is a walk to most people ). But for someone who gets out of breath climbing stairs I don’t want to risk a heart attack!!
Is it a waste of time unless you are doing 6/7 mph?