Does it matter if the coils are through clothing or not? Is it best to place directly on skin? @Bob thoughts?
Sure, the coils will work fine through clothing, but also in contact with the skin for most people since the gray rubber is medical-grade TPR.
There is No impact on performance of the magnetic field? Besides Omni-8, what other programs are good for back pain or locked hips?
For thin clothing: no impact
For thick layers like a parka or a pillow: magnetic field intensity will drop according to basic known physics
Other pulse protocol: individuals vary, but you could try Alpha wave, Schumann 3, 4, or 5, or basically experiment with any other pulse pattern.
What about power level? For at least a few weeks, Omni-8 really helped with mobility but now it seems to be helping less. We were pushing coils across the lower back at power 12 initially, then reduced to 10 and then increased to 11. Any suggestions?
Try cycling through different pulse patterns every few weeks:
Omni-8
Alpha Wave
Beta1 Wave
Schumann 1, 2, 3, …
then cycle back
Also try shifting coil placement and orientation: stacked, side-by-side, anatomic location (just a few cm can make a difference)