Based on personal experience, achilles tendonitis is one of the worst injuries you can have. Not only does it completely incapacitate you (I went from playing 6 hours of ultimate a week to driving to work every day since walking was too painful), but it takes forever to heal.
52 athletes were divided into two groups. One group was given low intensity laser therapy and strengthening exercises, while the other was given fake laser (machine not turned on) and the strengthening exercises.
Results showed that the low intensity laser group had significant improvements in pain and all other measured factors at 4, 8 and 12 weeks after the initial treatment, when compared to the exercise only group.
This is only one study looking at achilles tendonitis treatment, and so much more research needs to be done. However, it does show some promise for the use of low intensity laser therapy. In fact, it was this treatment, coupled with some acupuncture that finally got this Comox Valley Chiropractor back on the road to health.