any non runners?

[emily_in_nc]

Do you do any weightlifting/resistance exercise?
To maintain healthy bones exercise has to be weight bearing (another strike against swimming).
I think cycling qualifies.

Unfortunately, that's not the case. I believe that cycling is considered mostly non-weight-bearing. A recent study that Bicycling magazine cited determined that a large % of male elite (road) cyclists had bones similar to women after menopause! Perhaps someone could provide an exact citation - I'm at work and can't look it up now.

I seem to recall that the intense sweating cycling can result in can deplete calcium as well.

As I recall, the article recommended that cyclists participate in other forms of exercise as well to get bone-maintaining benefits, such as lower body weight work, running, hiking, and so forth.

Hope this helps!

Emily