The fitness market was surprised by the revival of isometrics a few years ago. The protocol we tested called for preexhausting of the muscles by isometrics followed by slow body weight movements. The results were favorable. In a relatively short amount of time, once a week workouts produced gains. (See previous articles and data.) The problem with isometric equipment has been that it has been costly to purchase equipment with a measuring device. Without a measuring device, the trainee has little feedback as to his effort. That problem may have been solved with the relatively inexpensive Igrip. (Retail less than $100.) The compact device measures the force applied pushing or pulling on the apparatus. If one chooses to use the device to preexhaust the muscles and then immediately follows up with pushups, chinups and dips, there is no reason that an effective upper body workout can not be achieved. The 5 lb device has a capacity to measure forces between 0 and 200 lbs. The ave
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