ABSTRACT
High resolution measurements of helium-neon laser spectra have been conducted about 0.64 mm wavelength. The singlet oxygen photo-generation was demonstrated to be responsible for the bioeffects of this spectral interval. Helium-neon radiation with 0.633 mm wavelength was used for medical rehabilitation of 15 patients with muscular atrophy as a result of wearing immobilizing plaster arm-bends on lower extremity fractures. 50-day hypokinesia of a damaged extremity induced differences in functional indices between damaged and healthy extremities in the same patient. This difference was diminishing more rapidly after laser therapy than in the control group though all patients had adequate rehabilitative treatment. Due to the likelihood of hypokinesia- and weightlessness-induced atrophies, helium-neon laser may be recommended for atrophy prophylaxis and treatment in both cases.