I want to walk a half marathon. My city's marathon is next fall, so I have plenty of time to get ready. I found various training plans online that range from 12-16 weeks, but that's really not what my question is about. I'm wondering, since I have almost a year till then, what should I do be doing now? Does it matter? I'm in good health but haven't exercised consistently lately. Also, general walking-a-half advice is very welcome!
I strain a muscle too frequently when I exercise. How am I supposed to get stronger? [more inside]
Is walking at your normal walking rate, but increasing the distance you walk, sufficient enough to be considered exercise? Can anyone recommend exercises for people who are very underconditioned and extremely obese, but not in poor cardiac health? And, finally, is there a medical professional who is the equivalent of a gym's personal trainer? (More inside.) [more inside]
Treadmill recommendations? My requirements: reliability, ~$1k, distance and rate display. Don't necessarily need: fans, built-in programs, elevation, pulse rate monitors, etc.