Q: I still cant do more than 12 consecutive push ups after doing pushups for 8 weeks.doesnt this mean thats its not in my genes to get muscular arms? I am a 6 foot male.

A: Sorry to hear you're stuck on that dozen push-ups. I am not sure if you are the person from http://www.mikesfitness.com/content/why-cant-i-do-more-than-12-pushups -- if you are not, then try following the suggestion I gave in that answer. If you are the same person as in that question and followed my advice but without success, then I would need more info to diagnose exactly what is the problem...

At 198 pounds you are fairly heavy, even for 6 feet tall, so one option is to lose some weight which would make the pushups much easier.

Another possibility may be that you've actually overtrained your chest/triceps to the point where you can't make any more progress -- in this case (though it's not likely if all you did was pushups) you can take a week or two off from exercising, and then come back fresh.

Yet another possibility may be that you are eating way too little which can interfere with strength development, even if you are not losing weight (this is the so-called 'starvation' mode).

Also, you could try varying your pushup routine by doing pushups while your feet are elevated -- resting on a chair, for example -- which makes the pushups harder and/or your hands are closer together than usual (this emphasizes the triceps role in the exercise), also making the pushups harder.

So there're a few different options/approaches you could take but I would need to know more about your diet and current exercise program before I can make a recommendation.

Finally, keep in mind that regular pushups with hands far apart is primarily a chest, not triceps, exercise. And even if you are very good at pushups it's no guarantee of having muscular arms, or even particularly muscular chest for that matter. If you are specifically more interested in building muscle size than performing max number of pushups, then you should probably reconsider your training approach. In this case, at the very least, start placing your hands closer together to target the triceps more and chest less.