Originally Posted by Jfitalia

the easiest answer is....

When we ride we all burn a ton of calories! the biggest problem is muscle loss is due to not eating enough after rides so that you dont end the day in with a negative calorie intake. Ive calculated based on my everyday activities on how much I need to eat per day and broke that in how much consists of carbs, protein and fats. I do the gym 3 days a week and try to ride 2 to 3 days a week (wish I could ride to work everyday but not possible since I need to wear a suit everyday) On gym days I shoot for around 2200 calories while on bike days I may jump that up to 3500 depending on how long and hard I ride. If you end in the negative for calories then your body goes into survival mode and will start to eat away muscle and thats how when you lose your arms and chest.