scholarly journals Influence of low-level laser therapy on vertical jump in sedentary individuals

2015 ◽  
Vol 13 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Camila Mayumi Martin Kakihata ◽  
Jéssica Aline Malanotte ◽  
Jessica Yumie Higa ◽  
Tatiane Kamada Errero ◽  
Sandra Lucinei Balbo ◽  
...  
Keyword(s):  
Muscle Soreness ◽  
Vertical Jump ◽  
Delayed Onset Muscle Soreness ◽  
Triceps Surae ◽  
Low Level Laser Therapy ◽  
Laser Applications ◽  
Low Intensity ◽  
Delayed Onset ◽  
Significant Difference ◽  
Intensity Laser

Objective To investigate the effects of low intensity laser (660nm), on the surae triceps muscle fatigue and power, during vertical jump in sedentary individuals, in addition to delayed onset muscle soreness. Methods We included 22 sedentary volunteers in the study, who were divided into three groups: G1 (n=8) without performing low intensity laser (control); G2 (n=7) subjected to 6 days of low intensity laser applications; and G3 (n=7) subjected to 10 days of low intensity laser applications. All subjects were evaluated by means of six evaluations of vertical jumps lasting 60 seconds each. In G2 and G3, laser applications in eight points, uniformly distributed directly to the skin in the region of the triceps surae were performed. Another variable analyzed was the delayed onset muscle soreness using the Visual Analog Scale of Pain. Results There was no significant difference in fatigue and mechanical power. In the evaluation of delayed onset muscle soreness, there was significant difference, being the first evaluation higher than the others. Conclusion The low intensity laser on the triceps surae, in sedentary individuals, had no significant effects on the variables evaluated.

Effect of Interferential Current on Perceived Pain and Serum Cortisol Associated with Delayed Onset Muscle Soreness

1997 ◽  
Vol 6 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Randy J. Schmitz ◽  
David E. Martin ◽  
David H. Perrin ◽  
Ali Iranmanesh ◽  
Alan D. Rogol
Keyword(s):  
Muscle Soreness ◽  
Mixed Model ◽  
Beat Frequency ◽  
Serum Cortisol ◽  
Delayed Onset Muscle Soreness ◽  
Delayed Onset ◽  
Significant Difference ◽  
Perceived Pain ◽  
Interferential Current ◽  
Cortisol Levels

The purpose of this study was to assess the effect of interferential current (IFC) on perceived pain and serum Cortisol levels in subjects with delayed onset muscle soreness (DOMS). DOMS was induced in 10 subjects through repeated eccentric contractions of the elbow flexors. Forty-eight hours later subjects were evaluated. Starting at t = 0:00, blood samples were withdrawn from a superficial vein every 5 min for 65 min. At t = 0:05, subjects received IFC of 10 bps or IFC of 100 bps. Perceived pain levels were evaluated prior to catheter insertion and at t = 0:35, 0:50, and 0:65. Two mixed-model analyses of variance revealed a significant decrease in perceived pain scores across time for both treatment groups but no significant difference in serum Cortisol for the two groups. It was concluded that IFC of high and low beat frequency is effective in controlling the pain of DOMS but does not elicit a generalized stress response as indexed by increasing serum Cortisol levels.

scholarly journals The effect of aquatic and land plyometric training on the vertical jump and delayed onset muscle soreness in brazilian soccer players

2017 ◽  
Vol 18 (5) ◽  
Author(s):  
Renato Tavares Fonseca ◽  
Rodolfo De Alkmim Moreira Nunes ◽  
Juliana Brandão Pinto de Castro ◽  
Vicente Pinheiro Lima ◽  
Sérgio Gregorio Silva ◽  
...  
Keyword(s):  
Body Mass ◽  
Muscle Soreness ◽  
Vertical Jump ◽  
Delayed Onset Muscle Soreness ◽  
Soccer Players ◽  
Control Group ◽  
Plyometric Training ◽  
Delayed Onset ◽  
Post Test ◽  
And Control

AbstractPurpose. To compare the effects of aquatic and land plyometric training on the vertical jump (VJ) and delayed onset muscle soreness (DOMS) in soccer players. Methods. Twenty-four male soccer players aged 16-18 years (16.53 ± 0.5 years) were randomly divided into three groups: aquatic plyometric training (APT) (n = 8; age: 16.4 ± 0.4 years; body mass: 68.3 ± 7.54 kg; height: 179.75 ± 8.13 cm); land plyometric training (LPT) (n = 8; age: 16.5 ± 0.5 years; body mass: 68.2 ± 7.8 kg; height: 177.0 ± 7.4 cm); and control group (n = 8; age: 16.7 ± 0.6 years; body mass: 61.2 ± 6.5 kg; height: 171.43 ± 5.75 cm), not performing any jump program. An identical training program was applied for 6 weeks, totalling 944 jumps. The VJ was evaluated on a leap jump platform and the Visual Analogue Scale measured the change in DOMS perception. Results. There was a significant increase in the VJ height in both experimental groups (LPT and APT) (p < 0.05). A significant reduction in DOMS perception was verified for the APT group in comparison with the LPT group (p < 0.05) between the first and last week of training. The foot contact time significantly decreased (p < 0.05) in the APT group from pre- to posttest. Significant improvements (p < 0.05) were observed in the flight time and jump speed from pre- to post-test in both LPT and APT groups. Conclusions. APT can increase the VJ height and reduce DOMS perception in soccer players.

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