Every object has its own natural frequency. This also means that muscles have an ideal frequency.
According to some scientists, every muscle additionally has a natural frequency. With regard to vibration training, this would suggest that a training frequency could be set as exactly as 1hz.
Depending on which muscle to be trained with a particular exercise, the exact frequency would have been chosen.

 

Training frequencies

Scientific research showed that even with an approximation of the ideal frequency, the effect of the training is positive. Research of Prof. M. Cardinale showed that 30 tot 35hz achieves in average the best result for weight exercise.
The professor did research into the electromyographic activity of the m. vastus lateralis (outer part of the m. quadriceps) at different frequencies.