Isometric exercise is a type of strength training in which the joint angle and muscle length do not change during contraction contractions. Isometrics are done in static (holding) positions, rather than through a range of motion. Isometrics are significantly better than Iso-Motion (dynamic) exercises at increasing maximal strength at the joint angle. Flexibility may be increased when isometrics are performed at joint range of motion extremes. Isometric exercises are often made into parts of isotonic exercises in performing reps with a “hold” on the last repetition.

Major Benefit: Strength


In an isotonic contraction, tension remains unchanged as the muscle's length changes. There are two types of isotonic contractions: (1) concentric and (2) eccentric. In a concentric contraction, the muscle tension rises to meet the resistance, then remains the same as the muscle shortens. In eccentric, the muscle lengthens due to the resistance being greater than the force the muscle is producing.

Major Benefit: Definition


Iso-Motion is a self-resistance exercise method which pits muscle against muscle in a full range of joint rotation. The practitioner tenses the muscles of given body part and then moves the body part against the tension. Iso-Motion exercises call for movement. The method comprises a combination of exercises in three disciplines: isotonic, isokinetic, and some exercises in the isometric discipline. Iso-Motion exercises increase strength throughout the full range of motion ().

Iso-Motion is nearly impossible to be injured during exercise because one's own muscles provide the force and, as they tire or extend, the resistance used also decreases. Iso-Motion is used within martial arts. The “dynamics of muscle tension” is applied using a person’s movements. The tightening of core muscles with movement allows the individual to change the pace of their motion. The results of such movements increase a person’s power and speed. Iso-Motion is a technique that is natural, everyday movement complimented and accentuated with varying resistance.

Major Benefit: Flexibility & Strength

I bought this product for convenience in exercising. I had never heard of Iso-Motion and it works very well and delivers impressive results. The biggest surprise was the facial exercises, they are amazingly effective. Susana L.


The Body is the physical part of your being. An individual must develop their Body so it is resilient. Everyday fatigue is a sign the Body lacks resiliency. Generally, a person physically unfit is an indication the Body lacks resiliency. One must be able to bounce back from illness and fatigue. A resilient body has stamina. Resilient training allows one to recuperate quickly from fatigue and over exertion.

Major Benefit: Cardio & Recovery


Endurance is the ability to exert oneself for a long period of time. It is usually used in aerobic or anaerobic exercise. The definition of 'long' varies according to the type of exertion - minutes for high intensity anaerobic exercise, hours or days for low intensity aerobic exercise. Training for endurance can have a negative impact on the ability to exert strength unless an individual also undertakes resistance training to counteract this effect. Bullworker combines these two disciplines to provide quality and long lasting endurance.

Major Benefit: Endurance with load resistance

IsoMotion Exercise

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Address: 8433 N. Black Canyon Hwy Ste 100
Phoenix, AZ 85021
Phone: 602-222-5451
Fax: 602-242-4200
Email: info@thebullworker.com

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