X3 Frequently Asked Questions

The following studies, conducted on athletes and everyday individuals, demonstrate the superiority of variable resistance training (VRT) over weight training.

We are frequently asked how to get into the proper position for a chest press.

A great majority of people engaging in “cardio” exercise do so to reduce their body fat yet this has an impact that runs counter to what they want.

Why do we only perform one set of each X3 Bar exercise? With variable resistance, specifically with X3, one set is all you need to reach complete fatigue.

How is X3 different from typical resistance bands or static weights? X3 provides a varying force based on biomechanics.

With X3, we are utilizing variable resistance, which causes us to use significantly more muscle fibers and weight per exercise than we would otherwise.

Don’t spend your money on new fitness equipment to build muscle until you find out which is better for muscle and strength: resistance bands or weights.

We walk through a resistance band tricep pushdown alternative known as the skull crusher, an exercise using the X3 Bar for variable resistance training.

Using the X3 resistance band bar increases the effectiveness and results of your fitness and strength program.

Dr. Jaquish defines functional training and explains how the X3 fitness device uses functional movements in the stronger range of motion to target and exhaust muscle.

Learn about muscle recovery rates. Dr. Jaquish explains the research behind the X3 fitness program's efforts to optimize the workout schedule.

Dr. Jaquish demonstrates proper X3 squat form and discusses other X3 Bar do's and don'ts.

Are quad extension exercises good or bad on the knees? Dr. Jaquish discusses the fascination with overtraining the quadriceps and explains the health implications of quad extensions.

How to choose which resistance band to use with your X3 strength training fitness device. Learn about how fatigue factors in the ideal amount of reps and sets.

Dr. John Jaquish explains how multiple sets in X3 resistance training can affect muscle recovery and adaptation. And discusses why one set to fatigue is ideal.