Just posted this. I think HIIT is the way to go. Try the treadmill 1 min fast 1 min slow for 20 min, one time and I bet you're hooked...:
subject: HIIT Story
Hey guys, I just want to share my experience. I have been working out for around 20 years now.. on and off b/c of life, kids, etc. I've been working out consistently for over a year now. I just started HIIT Training, I always thought you had to do sprints, which is rough for me w/ shin splints, knees, etc. I've also found that the heart rate is more important than how far you go, statistics on the bike, elliptical, treadmill, etc..
I just started on the tread mill which I have never used, only elliptical, bike, etc. (seems to be much less impact than running on the street) 1 minute fast, 1 minute slow for 20 min.. then circuit training, 5 exercises 2 times in a row, then HIIT for 10 more min, then same 5 exercises 2 more times in a row.. 4 days (Mon, Tue, Wed, Fri) on 3 days off (Thu, Sat, Sun)..
I haven't had workouts like this since I wrestled. HIIT works. I finally see a way to lose the extra pounds and plan on dropping 20-30 in the next 3-4 months. Just excited about it so I figured I'd share. Good luck everybody...