I think it counts as &quot;incidental&quot; physical activity which has been studied for its health benefits.<p><a href="http:&#x2F;&#x2F;well.blogs.nytimes.com&#x2F;2011&#x2F;05&#x2F;11&#x2F;fidgeting-your-way-to-fitness&#x2F;" rel="nofollow">http:&#x2F;&#x2F;well.blogs.nytimes.com&#x2F;2011&#x2F;05&#x2F;11&#x2F;fidgeting-your-way-...</a>