I have used Bullworker fitness tools for the last 5 years, generally 3 times per week. I am able to do challenging reps and then finish with a lengthy isometric hold. Bullworkers are designed for isometrics and some people only use the isometric mode. For me, it makes more sense to do the isotonic reps first. My holds are roughly equivalent to finishing off a set of barbell or dumbbell reps with a long negative.

The man below is working his back muscles with the Bullworker Bow Classic. This works the latissimus dorsi muscles, as he stretches out on both sides of his body, one side at a time.

This post will present a bit of the history of Bullworker and give my personal experience as well as show a couple of videos by other users.


The Bullworker brand was established in the late 1950s by Gert F. Kolbel, a German immigrant to the United States. Kolbel promoted the concept of isometric exercise, which involves static muscle contractions against resistance. Isometric exercise gained attention for its effectiveness in building strength without the need for heavy weights or complex equipment.

The first Bullworker device consisted of a steel spring encased in a cylindrical tube, with handles at each end. Users would compress the spring or cable by pushing or pulling the handles, creating resistance for various exercises targeting different muscle groups.

Bullworkers became popular because of their simplicity, portability and effectiveness. Over the years, Bullworker has improved its product line to include different models and variations, catering to diverse fitness goals and user preferences . Adjustable resistance settings and accessories for more exercises were added.


I am using the Bullworker Bow Classic, shown above and the Steel Bow, shown below. These are workout tools of high quality and are perfect for home workouts.

The Bullworker Steel Bow is ideal for chest workouts, as we squeeze the end handles together against any of the five resistance springs shown. The instructional handbook and carrying case are nice extras.

I prefer the Bow Classic for back exercises and the Steel Bow for chest (pectorals), though each is capable of providing resistance for many other movements, all explained in the handbooks.

Note that the Bullworkers have two sets of handles, those at the end which we push together and those at the sides of the cables, which we pull apart. The resistance in both cases is provided by the springs within the steel tubes. These springs can be easily changed to raise or lower the resistance.


This young man is entertaining and a bodybuilding expert. He uses free weights and Bullworkers.

This is a “killer back workout” by Chrisman Hughes.

Here is a brief video showing the isometric movements provided by Bullworker


For complete information, see my Bullworker Fitness link at the side of my website. This is a permanent link to the Bullworker website. All products are described and training for each is shown.

These are the reasons that I use and enjoy the Bullworker Bow Classic and Steel Bow:

  • Bullworker tools are high quality – they don’t break down
  • They are portable and I take them when traveling
  • I like the isotonic/isometric capabilities
  • They give me a good “pump”
  • The handbooks are informative
  • The entire body may be worked
  • There is a free Facebook group for support and advice

Please leave me any comments or questions in the “Comments” section below. Or email me, richard@myworkoutathome.com.

Let’s stay active!


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