I am mainly concerned with asthetics…I know it sounds shallow, but it’s true. I’m already in pretty good athletic shape, but I don’t look like it. I want to be able to cut the sleeves of my basketball shirts down all the way to the waist! LOL

If you’re not overweight, you need to concentrate on a weight training program. Although it is good to do cardio at least 3 times a week. Rotate between working separate muscle groups like upper body/arms, core and back, lower body/legs. Lift weights and/or do calisthenics (i.e. push ups, lunges, squats, crunches, etc.) If you are not used to doing weight training, start off light. Make sure you give your muscles at least a day of rest after working them. So if you do upper body today, rest it tomorrow. Hope this helps.