Originally Posted by
burnthesheep
I feel my run volume has helped with gaps in time in regards to building some ftp this year. But I swear I'm holding onto some weight from training stress anytime I run a decent amount in a week. As soon as I drop that volume in a week and go just bike, a couple pounds come off. Random comment of the day after being mad at the scale.
That's probably because you can't maintain the same volume running as you can cycling. For a fit cyclist, a 4-5 hour ride is no big deal. For a fit runner, a 4-5 hour run is damned hard, we're talking 20-30 miles on the road. IME, calorie burn per hour is similar between the two. OTOH, running helps with bone density, which is a historical weakness among folks who are strictly cyclists.