After joining the gym only for a few...

Hi,
I have a problem with the verb "join" there. I'm not sure you can "join something/someone for a period of time".
Maybe it should be changed to "After going to the gym only for a few weeks".

I'm not sure though.

Some additional possibilities:
After belonging to the gym for only a few weeks, John started to look strong and sinewy.
Only a few weeks after he joined the gym, John started to look strong and sinewy.

Mr. TomDo you find this sentence correct and natural?

After joining the gym only for a few weeks, John started to look strong and sinewy.

Not really. In addition to the problem already mentioned by Kooyeen, sinewy is not a common word.

In [just / only] a few weeks after joining the gym, John started to look (pretty) [stro

CalifJimmuscley

I have to say CJ, I've heard "sinewy" far more often than I've heard "mucely." (which I don't think I've ever heard).

I changed it when I noticed that it wasn't in the dictionary.
Nevertheless, in spite of the fact that I don't know how it would be spelled, I have heard men described as "muscle - y". And, except in literary contexts, I've never heard them described as "sinewy".

My sincere thanks to everyone. I think the word "muscly" is here. But I really don't know what it means.

http://www.thefreedictionary.com/muscly

Tom

Mr. TomI think the word "muscly" is here. But I really don't know what it means.

It means muscular, having big muscles, and I don't know why I didn't think of that earlier, because that's a better word for your sentence.

John started to look strong and muscular.

CJ