How can you tell if you lose muscle mass?

I have a try outs in like a week and I was wondering if anyone had any good ways that you can lose weight and gain muscle. I ...

I am 16 lbs over weight and I need to lose it .. and I want to focus on my arms & stomach.. HeLp

I want to build more muscle, and lose a lot of fat. What should I be eating to do so? If I only eat things without fat calor...

Im about 5"3 and I have really short muscular legs..I was wondering if there was any way I could lose some of the muscle to m...

Ma muscles re loosing tone...especially arms... I left the gym 3 months ago but I do push ups daily..some one has and e idea??

How do I lose weight and gain muscle fast?

How do you lose thigh muscle? I have muscular legs; I want thin legs. How do you like, lose the muscle?

how can I lose the fat on my calves?

How do I burn off fat without creating lean muscle mass. Because I have a tendency to build up muscle when I exercise and not...

How do I gain muscle mass in my hips??