I need to lose a bit of fat but I want to build muscle at the same time. Is it better then to run/cycle then do weight training?
Bizarrely, I'm trying to do the opposite. I'd love to know what F1 drivers do to get incredibly fit but not put on much muscle. I seem to build muscle very easily when cycling (commuting) which means that I've replaced all the fat I've lost with muscle weight (understand the density thing) - but I'm trying to lose overall mass whilst getting fitter (also for motor racing).
You can't burn fat off that easily. Chances are you're putting muscle on under the fat layer and thinking you're getting very muscular.