Ok, I didn't read through all the strategies of other members, but here is mine :
Biggest advantage of my advise is, that you'll need very little motivation. But it'll cost you a few bucks and requires a little space in your home :
Buy a treadmill. Your weight mighty be a problem here, you'll have to buy a good one ( edit : I just realized, that 300 lbs are "only" 137 kg, so even mediocre treadmills should be able to handle that. Don't go too cheap though, 800 USD minimum ) I can recommend Horizon products. Get a good pair of running shoes ( go for the best, I use the Asics Gel Kinsei III ( I think ). Now the important part :
Buy an HDTV, a 1080P upscaling
DVD player and place them in front of the treadmill. Then
buy a ( or several ) complete season (s) of a sitcom / science fiction series etc you like ( Sopranos, Startgate SG1, KoQ, Lost etc ) and from the day you have that setup, you'll
only (!!!) watch these seasons
when you are
on that
treadmill; No need to run, just
walk in the beginning.
45 min each day, 6-7 days a week. In your case : after work, before dinner.
After a few weeks you might start running a few min and then walk again.
And for
dinner, try
low carb. Some chicken and salad. You can keep eating normal at breakfast and lunch, but try to avoid soft drinks ( Cola etc ), go for water or juice instead. And of course it would be great if you reduce burgers, doughnuts etc, but there is nothing wrong with eating some unhealthy food now and then. Otherwise you won't make it. Don't start counting calories or being hungry all day / before you go to bed. Just try to eat a little healthier, not necessarily less.
Believe me, walking / running while watching DVD seasons works perfectly, you need almost no motivation whatsoever, because rain, darkness, cold temperatures etc don't affect you at all and it is fun to watch TV. After a few months, walking / running almost every day will become your daily routine just as eating and sleeping.
I do it this way, I can only recommend it. We are talking about 1200$ - 2000$ here, but your health should be worth it, well, at least if can afford it.
( I use the Horizon Paragon S ( 1500 EUR ), a 37 " Toshiba FullHDTV and a Toshiba upscaling DVD player ; currently I watch Stargate Atlantis season 1-5 )
Also, since you start off slowly, I don't see a reason to consult a doctor as long as your body doesn't show and symptoms. Just walk slower or stop when you feel dizy, drink enough ( not just water, maybe mixed with juice ) and if your legs hurt : take a break.
Oh, and if possible, try to place the treadmill at a window. Open it while walking/running unless you live near a busy road, in that case it might be healthier to breathe the air of your apartment / house )
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