ASSESSMENT OF THE EFFECTIVENESS OF LOW-LEVEL LASER THERAPY (LLLT) – AND HIGH INTENSITY LASER THERAPY (HILT) TO REDUCE THE SYMPTOMS OF MUSCLE FATIGUE – A COMPARATIVE ANALYSIS
Journal Title: Medycyna Sportowa - Year 2014, Vol 30, Issue 3
Abstract
[b]Background. [/b]The laser light energy through its effect on metabolic processes in a living tissue may minimalize the symptoms of delayed onset muscle soreness (DOMS). The results of the studies conducted to date do not allow to clearly identify the relationship between the quality of the effects of laser energy and dose was applied. The aim of this study was the evaluation of effects of a low level laser therapy and high intense laser therapy on the symptoms of delayed onset muscle soreness. [b]Material and methods. [/b]Thirty healthy volunteers were randomly allocated to one of three experi - mental groups. All groups underwent gastrocnemius muscle workout (climbing on toes in 4 sets of 30 repetitions). Laser irradiation was used immediately after the workout. In group I, low-level laser irradiation, the high-intensity laser irradiation of the second group, while in group III was exposed to placebo irradiation after workout. The study included subjective assessment of muscle pain using Visual Analog Scale (VAS) as well as computer measurement of range of motion and muscle strength. The study was performed 3 - times: before workout, after workout and irradiation, and 48 h after workout.[b]Results. [/b]A higher severity of muscle fatigue was shown in the placebo group. The difference concerned the subjective symptoms of fatigue as well as the functional assessment of the ankle joint made by means of an electronic measuring device. [b]Conclusions.[/b] Low level laser treatment (LLLT) reduces muscle fatigue and the severity of pain after physical workout. The study did not confirm the effect of the laser energy on the function of tired muscles.
Authors and Affiliations
Jolanta Zwolińska, Aneta Weres, Andrzej Kwolek, Witold Furgał
Keywords
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