NDLI: A influência do laser 830 nm no desempenho do salto de atletas de voleibol feminino

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A influência do laser 830 nm no desempenho do salto de atletas de voleibol feminino

Content Provider	Semantic Scholar
Author	Maciel, Thiago Dos Santos Silva, Jefferson Hilário Nery Da Jorge, Felipe Sampaio Nicolau, Renata Amadei
Copyright Year	2013
Abstract	INTRODUCTION: Studies show that laser therapy can increase muscle performance and delay the process of muscle fatigue. However, few studies have reported photogrammetry as a tool to analyze muscle performance. The objective of this study was to assess the possible effects of phototherapy in relation to activity and muscle fatigue. METHODS: We performed a crossover, randomized, double-blind, controlled trial with seven healthy female volleyball players. The muscle activities were quantified through electromyography, and jumps were quantified through photogrammetry Laser therapy (830 nm, 30 mW, 11 J per point and 22 seconds) was carried out on 3 cm2 triceps surae muscle for an average of 20 points. The Kolmogorov-Smirnov test was used to analyze data distribution. RESULTS: After testing for normality, the Student t test was applied, considering a significance level of 5% (p <0.05). The laser had no effect with respect to the variables studied. Interestingly, a significant difference in motor recruitment values of the lateral gastrocnemius muscle was observed during plantarflexion movement. CONCLUSION: Although many studies have shown a correlation of phototherapy with muscle activity and fatigue, this study found no correlation of laser therapy with muscle activity or fatigue.
Starting Page	199
Ending Page	205
Page Count	7
File Format	PDF HTM / HTML
DOI	10.4322/rbeb.2013.020
Volume Number	29
Alternate Webpage(s)	http://www.scielo.br/pdf/rbeb/v29n2/a10v29n2.pdf
Alternate Webpage(s)	https://doi.org/10.4322/rbeb.2013.020
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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