Ellen- It's the running. When I did a half marathon 2 1/2 years ago, my trainer (now my boss) was dismayed and kept telling me I'd lose muscle and gain fat. I told him he was crazy. How could I possibly get FATTER by running? Well, he was right. By the time I finally ran the ^&$# race, my body fat was up 2.5% even though my weight was down a few pounds. Your body adapts to the kind of training that you are doing, and right now you are not training for muscle mass. You may still be doing resistence training, and that helps, but long distance runs (or any other endurance sport) chews up muscle. You can't be all things at once. Don't worry about it, and go for what you enjoy. You are losing weight, you're healthier, and you enjoy running and meeting the goals you've been setting. Your body fat % isn't tatooed on your forehead.
My last food fall was over a body fat reading. I was basing my muscle mass on a reading taken 6 months ago when I was 12 pounds heavier. Dumb- of course I lost muscle, too. When I was re-calipered and the number was higher than I thought it was based on my calculations, I went into a 3 day tailspin. Why? Nothing change...the same clothes fit me (ok, not after those 3 days!), I was as "fit" after I knew the real number as when I was living in la-la-land, but it took me a while to get over it, too. It's the same as the scale. You know now not to get upset by daily fluctuations...what you are seeing is body composition fluctuation to to the training effect. Hang in there!
I went to the gym this morning intending to do shoulders and cardio, but found a lifting buddy about to do legs. She's crazier than I am (and a whole lot younger) so I couldn't pass up the chance to have a partner for a change
Since I'm starting back from a week off, I figure it really didn't matter whether I did legs today or tomorrow. OMG, am I ever going to be sore
Ilene- I've looked all over and can't find the post where you talk about your Dad, but I figure he's sick. I hope all goes well.
Tik- Now that the 76'ers are OUT we don't get much BB news in Phila. Larry Brown is not on anyone's favorite list in this city.
Sandy-You are braver than I am for biking to work! I like my exercise where there's a "way out"
Pat- Welcome back to the land of the living!
Mel