End of treatment results for LLLT measured as the SMD for pain-free grip strength. Trials are subgrouped by application technique and wavelengths, and their combined results are shown as total at the bottom of the table. Plots on the right hand side of the middle line indicate that the LLLT effect is superior to the control treatment.
Bjordal et al. BMC Musculoskeletal Disorders 2008 9:75 doi:10.1186/1471-2474-9-75