On 2015 Oct 03, Jan Tunér commented:

The energy used here is 1 J per point (50 mW x 20 s = 1000 mJ = 1 J). For a muscle, this is far from the therapeutic window and a failure is to be expected. We found 6 J per point effective, but not necessarily optimal(Ahrari et al. 2013), even higher energies are sometimes clincally needed for reasonable results. Muscles are thick and contain a lot of hemoglobin, a major absorber of the light. Irradiation with or without pressure also changes to energy at target. The laser parameters here are well described but inadequate.

On 2015 Oct 03, Jan Tunér commented:

The energy used here is 1 J per point (50 mW x 20 s = 1000 mJ = 1 J). For a muscle, this is far from the therapeutic window and a failure is to be expected. We found 6 J per point effective, but not necessarily optimal(Ahrari et al. 2013), even higher energies are sometimes clincally needed for reasonable results. Muscles are thick and contain a lot of hemoglobin, a major absorber of the light. Irradiation with or without pressure also changes to energy at target. The laser parameters here are well described but inadequate.