35
Participants
Start Date
September 30, 2009
Primary Completion Date
December 31, 2009
Study Completion Date
December 31, 2009
Low-level Laser Therapy
Portable unit containing two laser diodes producing 532 and 635 nm wavelengths. Both diodes produced energy levels of 7.5 mw (class IIIb). Beams from both diodes were dispersed through lenses to create parallel line-generated beams, rather than spots. The 532 nm light was constant, and the 635 nm light was pulsed, with frequencies of 15 and 33 Hz. The pulsing alternated between frequencies every 30 seconds.
Placebo Comparator: Disabled Laser
Portable unit containing two DISABLED laser diodes. Same protocol was followed as for the Experimental (radiation) group, except that the disabled diodes produced no radiation.
University of Iowa, Iowa City
Collaborators (1)
GN Resound
OTHER
University of Iowa
OTHER