Fitness enthusiasts who have come across descriptions of Bullworker exercise in a survey of exercise gear might be wondering about whether or not this little device can really help train and strengthen muscles. Learning more about new devices like the Bullworker can be helpful when you're looking for new additions to a fitness or power workout regimen, or for trainers who want to help clients discover a way to work out for the best body responses to resistance challenges.

The Bullworker is a device that's used for isometric exercise. Spring-loaded, contracting cylinders are links to hand grips, and users push inward on both ends of the device to work the arm muscles. The Bullworker also offers corresponding exercises for the legs and lower body.

Isometric exercise is when muscles contract while stationary, without a range of motion. Most of us have seen isometrics at work, possibly when looking at someone holding up a heavy weight load without moving. Isometric exercise is fundamentally different from isotonic muscle contractions where the individual uses their muscles through an entire range of motion.

For those who are wondering if this kind of exercise works, knowing more about how isometrics differs from other kinds of muscle training is key.

Because isometrics only trains muscles at a specific joint angle (not through range of motion), many fitness experts agree that its main results only prepare the muscle for stationary use. That means that an individual who trains a lot with isometrics may be able to impress others with displays of strength in a stationary position (think about someone holding up a heavy weight away from their body with arms outstretched) but may not get the same kind of gains that many athletes and others commonly use. With isotonic exercises that include a range of motion, muscles will get stronger throughout the entire movement, which is helpful if that's what you're going to be doing in any athletic or recreational capacity, in forms of manual labor or just in helping neighbors or family members with heavy lifting. It's interesting to note that lots of heavy lifting does involve isometric muscle activity, which means that combining Bullworker exercise with other free weight or fixed weight training may really help, for example, on moving day.

For many, the Bullworker represents a useful fitness tool that will help them develop muscle strength, not just in the limbs, but in the core muscle groups that carry and stabilize the body. But how to manage all of the different types of isometric and isotonic exercises that you want in your routine is a different question. Anyone having difficulty with organizing their regular exercise routines can take a look at Fitday.com, where an array of helpful tools can make all the difference between a good idea and a good result. Take a look and see why so many members have gone from 0 to 60 in their physical fitness routines.