Place the XLR8 over the area of involvement (AOI). The clinician may choose to (#2) laser over the nerve root (located using the myotome/dermatome chart) or the organ involved (using the Merrick chart).
These settings have been used by thousands of clinicians for thousands of different reasons and hold true today as some of the most recommended. Keep It Simple and effective. Immediate change in function when using activation method (strength / ROM / leg checks / chiropractic indicators). If you have functional exams to identify strength and range of motion impairment and laser the involved physiological window (spine, brain, organ, meridian) a change can occur in seconds to let you know you are providing an accurate treatment.