I've seen the Bodyblade advertised as the most efficient tool ever for core training. What can you tell me about this device?
The Bodyblade is a thin, flexible foil measuring about 30 inches long. It has a molded grip in the center for your hand. It can be held (and used) in the vertical, horizontal, or diagonal direction.
Depending on how you hold it and the position you're in, you can activate different muscle groups. The blade oscillates (moves back and forth) at a natural frequency of 4.5 times each second.
Resonance at this frequency challenges trunk muscle strength, endurance, and coordination. When used properly, the Bodyblade enhances spinal stability. The opposite is also true: lumbar compression may be increased with the Bodyblade. Such a result is not desirable for patients with lumbar spine pathology.
Studies show when used properly the Bodyblade is very effective in recruiting the abdominal muscles and trunk stabilizing muscles. The goal is to increase stiffness on both sides of the spine equally. The stiffness combined with coordinated muscle activation has been shown to improve spine stability.
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