Otto is short for osteophonic, which means to vibrate the bones. These tuning forks have weights on the ends. When you tap these forks, they vibrate more than those that don’t have weights. The vibration is transferred to tissue and bone by placing the stem of the fork on the body.
The 128 Hz fork is used to help joint mobility. You can press it to any joint. It is great for loosening tight muscles and it helps balance the autonomic nervous system.
It is wonderful as a heart balance by placing the stem of the fork on the heart chakra and also as a third eye chakra balance.
Research suggests to use 128 Hz fork only twice on any one point. More applications can over-stimulate an area and reduce the nitric oxide effect.
An activator is recommended for this fork due to it’s length. While you can use the palm of your hand, an activator will make the fork resonate longer.