Today I completed my 2nd day with the active couch to 5k app on my I phone. Right now the program is 3 days a week and this week it is 20 mins rotating 1 min jog and 1 1/2 min walk.
"Wisdom is always an overmatch for strength."
Each time feels a little different of course I have only done 2 days but it's not causing me pain so that it a very good thing. I feel my back at times but very slightly but it's not necessarily bad just something to notice. My stride makes a huge difference of course. I have always been very heavy on my feet so I try to work on landing very light. Technique makes a huge difference and I guarantee my back will tell me if I am doing things right or not.
“Do not let what you can not do interfere with what you can do.”