Here is a question about skiing?
How would it be to create a new tag on
The only two tags on that question are currently exercise and muscle. I would say go ahead and modify those and make them more specific as to what the content of the question is about. Bear in mind though that if a tag is only ever used on one question, it will be automatically culled after some time.
Also, the asked of the question doesn't seem to know the name of the specific muscle (or group of muscles) to train. It would be good to identify and clarify that too.