Well, one thing that my personal trainer told me, was that you do not necessarily *have* to run. Most people think, "I need to run my heart out to lose weight". But really, its about your heartrate, and making sure you are in the right range for your height, age and weight. There are charts online that you can look up, and see what your heartbeat should be. If you are below the "weight loss" range, then obviously....workout harder to raise your heartbeat. If you above, that is BAD!! When you exceed the heartbeat range for your personal body, you are doing reverse progress, or nothing at (except breaking down muscle). I was running, and going strong on the precor machine (similar to the eliptical but without the arm things) and my heartbeat was ~160. I talked with my personal trainer, and had a few sessions of one-on-one and my heartbeat should be betwen 136-146 for weight loss. And I actually started to lose the weight, and see definition in my arms, butt, thights, stomach....
Get a heartbeat monitor or a stop watch and workout that way. I can easily reach the lower end of my heartbeat range on flat ground doing speed walking. To get to the higher end, or exceed (which is... BAD!) I speed walk on a large incline (up walk up hill if you don't want to go to the gym).
Its amazing the results you see when you start working out correctly. I was doing it incorrectly for YEARS, and saw zero results. Zero, zip, nada! And just after a few months with knowing how to do it correctly, I dropped weight, gained muscle, and got definition. Also, watch those sport drinks. Drop them altogether and just drink water when you work out.
Oh yeah, and it would be in your best interest to start doing weight training too. That is what made me lose the weight the fastest. Weight training (and no, you don't have to sit there and pump iron all day) raises your metabolism for ~48 hours, while cardio only raises it for ~12 hours. BIG difference. PM if you want any more info. lol I talked a lot with personal trainers, and nutritionists.
ETA: The whole point of my post was to say that you don't need to run. lol Just get your heartrate in the correct range, and add some weight training (pilates, squats, sit ups, light weights 10-15lbs for arm repitions, etc.). :thumbsup: