what is the truth?
I am training fairly hard (for me anyway) esp on hills at mo and have been upping my core strength work with sit ups etc to help an injury issue. Not changed my diet, but have put on 5lbs. Is it a myth that muscle weighs more? I certainly don't feel like I've gained any weight.
Should I ditch the scales? Is their an ideal weight, or is it not important for an amateur runner? Should I work on measurements - or just go with feeling good?
Just interested on others thoughts