A series of consecutive reps are called a ‘set’
Each up and down movement is called a ‘rep’ (repetition). Typically each muscle moves from a fully extended position back and forth to a fully contracted position. The weights are raised and lowered in a rhythmic movement. Regular weight training involves Isotonic contractions. Using the Bullworker for Isotonic Contractions The Bullworker X5 can be used both isotonically – involving movement – or isometrically – with static contractions. The modern version has evolved into a very ergonomically designed unit that is very comfortable to use. The original design was called a Tensolator and went through various design changes, one of which was the highly popular Bullworker X5. It’s been a popular workout tool in America, Asia and Europe. Kolbel in the early 1960s and since then over 9 million units have been sold. There are literally dozens of exercises that can be performed with the Bullworker, each targeting specific body parts such as the chest, back, arms, shoulders and legs. The cylinder has a marked scale so you can read off the number to monitor how you’re doing on any particular movement. It is moved down the cylinder by the handle as it is compressed.
Surrounding the cylinder is a plastic ring which is used as a ‘power meter’ to measure your strength progress.
Alternatively, the handles can be squeezed together to obtain a similar result. Pulling the straps apart forces the handles together and compresses the spring. It’s a simple design: it consists of a cylinder that contains a powerful spring with two handles at each end which are held together with double banded nylon straps. I’ve had my Bullworker X5 since the 1980s.
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