For the last year or so I have been keeping the intensity as tight as I can but it means I lose only about 230 - 240 calories because I go very slow. I changed the intenisty of my bike today and its much easier to go faster now. I also lost more calories in 45 minutes (350 calories). Is it okay if the intensity isn't so tight? Will I still lose weight? I also do 50 situps and 30 squats.