Instructions please for exercises

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ldarlener
ldarlener Posts: 79 Member
I see a lot of people posting doing different exercises.
I don't know how to do most properly.
i found this online http://www.washingtonpost.com/wp-srv/special/health/workout-at-work/

If you have other good ones, would you mind to post the instructions and/or a link?

I want to specifically start working on my core and shoulders (both of which have given me trouble).
Thank you .