Let me be more specific - I hate running for distance, especially on a treadmill. I feel like crap during and I feel even worse the next day. You know what I love? Walking quickly or interval training on an elliptical. I also love Zumba classes. I can do any of those for an hour, work up a good sweat and get my heart pumping, and ENJOY it. I'm also not in pain the next day But according to the trainer at the gym I'm not going to lose any more weight unless I start running. According to him, I'm not in shape since I can't run for 20 minutes. Can I get some encouragement from others who don't run as part of their exercise program, but have lost weight and are in good cardiovascular shape? If it matters, I have incorporated strength training in to my routine too.