http://www.widgetbox.com/tag/high intensity interval training en-us 60 The latest Widgetbox widgets tagged with high intensity interval training http://www.widgetbox.com http://d3jpssxobtdjx.cloudfront.net/images/wbx-logo-hm.gif Mon, 07 Sep 2009 02:05:17 -0500 http://www.widgetbox.com/widget/shark-in-the-park http://www.widgetbox.com/widget/shark-in-the-park <img src="http://img.widgetbox.com/thumbs/c27/559a1311-f279-4609-8975-4d90f38a952a.jpg?29" alt="Shark In The Park" /> This is a very different workout than you have ever experienced before now. Have you ever pushed yourself so far that you wonder if you are capable of finishing a workout? This military style, high intensity, interval training, one hour... pjbosc Mon, 07 Sep 2009 02:05:19 -0500