working out

hi i have been working pretty much every other day . before i worked out i weighed around 115 not my weight is at 130
I know that i am still growing but is all that weight from muscle or a bunch of things.

Also how long does it take for me to lose muscle strength if i stop working out?

[James G Beckerman, M.D.]

When you work out frequently, you are likely to gain muscle mass, which may result in a small increase in body weight.  Also, as your metabolism increases, so does your appetite - you might find that you are eating more than you were previously such that your overall calorie intake to output ratio has gone up.  Muscle strength and muscle mass unfortunately go down pretty quickly - over a period of weeks to months.  That's why it's good to consider a balanced exercise regimen with both aerobic exercise and some weights - easier to maintain over the longer term.  Take care!