Immediate Effects of Photobiomodulation Therapy Combined With Static Magnetic Field on the Subsequent Performance: a Randomized Crossover Triple-blinded Placebo-controlled Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 12
- 试验地点
- 1
- 主要终点
- Fatigue index
研究概览
简要总结
There is evidence about the effects of photobiomodulation therapy (PBMT) alone and combined with static magnetic field (PBMT-sMF) on skeletal muscle fatigue, physical performance and post-exercise recovery in different types of exercise protocols and sports activity. However, it is unknown the effects of PBMT-sMF to improve the subsequent performance after a first set of exercise. Therefore, the aim of this study was to investigate the effects of PBMT-sMF, applied between two sets of exercises, on the subsequent physical performance.
详细描述
A randomized, crossover, triple-blinded (assessors, therapist and volunteers), placebo-controlled trial was carried out. Healthy non-athletes' male volunteers were randomized and treated with a single application of PBMT-sMF and placebo between two sets of an exercise protocol performed on isokinetic dynamometer.
The order of interventions was randomized.
The primary outcome was fatigue index, measured by isokinetic dynamometer during the exercise protocol. The secondary outcomes were total work and peak torque measured by isokinetic dynamometer during the exercise protocol; and blood lactate, measured by blood samples collected before, 3 minutes after the first set of the exercise protocol, 3 minutes after the application of the intervention and 3 minutes after the second set of the exercise protocol.
Statistical analysis
The findings were tested for normality using the Kolmogorov-Smirnov test and were determined to have a normal distribution. Data were expressed as the mean and standard deviation, and a two-way repeated measures ANOVA was performed to test between-group differences at each timepoint (treatment effects), mean difference (MD) and 95% confidence intervals (CI), followed by the Bonferroni post hoc test. The significance level was set at p < 0.05.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Prevention
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
盲法说明
A researcher programmed the device (placebo or PMBT-sMF) and was instructed not to inform the volunteers or other researchers as to the type of treatment (placebo or PBMT-sMF). Therefore, the researcher responsible for the treatment was blinded to the type of treatment administered to the volunteers. The sounds and signals emitted from the device as well as the information displayed on the screen was identical, regardless of the type of treatment (placebo or PBMT).
入排标准
- 年龄范围
- 18 Years 至 35 Years（Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- 未提供
结局指标
主要结局
Fatigue index
时间窗: 1 minute after the end of exercise protocol.
Variable provided directly by the isokinetic dynamometer during the exercise protocol.
次要结局
- Total work(1 minute after the end of exercise protocol.)
- Peak torque(1 minute after the end of exercise protocol.)
- Blood lactate(3 minutes after the first set of the exercise protocol, 3 minutes after the application of the intervention and 3 minutes after the second set of the exercise protocol.)
研究者
Ernesto Cesar Pinto Leal Junior
Full professor
University of Nove de Julho