The Use of i/t Curve in Assessment of Phototherapy Effects

"Biceps brachii examination was carried out before (examination 1) and after (examination 2) a series of 10 PILER light treatments. It included a traditional electrodiagnostic examination and the assessment of the pressure pain threshold (PPT).~The electrodiagnostic examination of the muscle was performed using the unipolar stimulation method from the direct motor point. The passive electrode (6 cm x 6 cm) was attached to the side of the distal part of the forearm, and the distal edge of the electrode was adjacent to the proximal edge of the ulnar styloid process. The examination was performed with a Multitronic MT3 electrotherapy apparatus set.~PPT at the direct motor point was determined using an algometer (Algometer commander TM ITECH Medical Industries). A head with a rubber jacket with a surface area of 0.5 cm2 was used to cause pressure pain. Pressure was exerted until the participant reported pain, at which time the force (lbs) marked by the algometer was recorded."