hi! i normally post on some of the other boards, but this is my first time here.
i race bicycles, and i train a lot. during the season i ride about 100 miles a week. as a change during this off season, i began to run in order to keep my cardio up, but i am finding that i am losing too much weight.
on an average 20 mile bike ride, i will burn 1000-1200 calories. when running, i have been doing 3 miles in 25 minutes, working on speed intervals at 9.0-9.5, my heart rate clock says i am only burning about 300-330 calories. i was running 4-5 times a week.
what is the difference and why am i shedding weight while i run, but not when i cycle?
note: i don't need to lose weight, nor am i trying.