DanP said:
If you are OK you could technically afford to tell anyone "you are fat", "buy a mirror" or "you are a walking heart attack" without loosing a gram of weight.
Well, in theory, you could do or say anything, incidental, to anyone, if you so choose. But, to paraphrase...
"Why in the name of god [would you] do that...[unless, of course, you'd really want someone to think you're an egomaniac?]"
Besides, "really muscular and thin" at the same time is a contradiction. Models are thin. Maybe you mean muscular and low body fat?
To illustrate my point: take, for example, the two separate renditions of "Mr. Incredible" from that famous Pixar film, "The Incredibles."
Firstly, Mr. Incredible, in his younger form...
And second, here's another, only older...
[PLAIN]http://www.daimation.com/photos/fatmrincredible.jpg
While he obviously seems to be maintaining musculature in the arms (to be slightly more precise); I would certainly no longer regard him as being especially trim, or "thin" (if you please), in the waist.
These of course, are only cartoons. But still: I've known actual people to be of similar enough persuasion, to want to make the analogy.
Btw, riding a bike won't do anything for your leg strength. If you want strength, learn to squat.
Frankly, I can't without laughing. To me, it always looks (and sounds) as though someone were severely constipated, and trying to make do (pun very highly intended).
And I am somehow sure that a military bootcamp does a bit more than 48 push-ups in a day. Maybe you mean 48 in a single set ?
At least according to this wiki article...http://en.wikipedia.org/wiki/Army_Physical_Fitness_Test" ...the minimum is 42 for men aged 17-21.