Janeane,

Have you looked at my current weight lately? I out weigh you, plus the only jogging/running I had done in ~30 years (since Grade 7) is to catch a bus, and now I'm jogging, for limited periods. Did I mention I have asthma too, but my cardio w/o doesn't affect it? When I'm done I huff & puff a wee bit, but it's barely heavy breathing after the 1 min cool down.

My 1 min intervals: effort: 6: 3.5 mph walk, eff 7: 3.7mph walk, eff 8: 4.1 (jog), eff 9: 4.6 jog, eff 10: 5.0 jog.

My calf muscles won't allow me to walk at fast speeds, they cramp & cause shin splints but I can jog, go figure? I was utterly amazed at this hidden ability, just ask Marlaine For me the secret is that I know it's only for 60 seconds, I can handle that.