Guest guest Posted January 23, 2006 Report Share Posted January 23, 2006 Muscle Development Bullworker offers you both Isometric and Isotonic exercises. Isometric exercises, with little or no movement of the target muscle area, provide muscle tension to build strength. Isotonic exercise results from movement during muscular contractions. Doing isotonic exercises gives the user strength and flexibility. Bullworker effectively combines these two to give you results? FAST! Yahoo! Photos Ring in the New Year with Photo Calendars. Add photos, events, holidays, whatever. Quote Link to comment Share on other sites More sharing options...
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