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Phototherapy Applied in Association With Muscular Training

2016年10月18日更新者：Adriane Aver Vanin、University of Nove de Julho

Phototherapy Applied in Association With Muscular Training: Evaluation of Different Moments of Applications

The effects of phototherapy has been widely studied by some research groups. The investigators know that there are positive results with light application to improve muscle performance and delay fatigue. However, there are few studies showing its´ effects on muscular training. Therefore, the aim of this study was to assess the effects of phototherapy applied at different times during 12 weeks of strength training. For such, 48 volunteers, healthy male, from 18 to 35 years old were recruited to perform a strength training protocol for the anterior muscle of the thigh development. Volunteers performed the training protocol three times a week for 12 weeks. There were assessed isometric peak torque in isokinetic dynamometer, concentric peak torque, 1-repetition maximum test in the leg extension and leg press machines and bilateral thigh perimetry.

研究概览

地位

完全的

条件

肌肉适应

干预/治疗

设备：Active or Placebo Phototherapy (MR4)

详细说明

This is a clinical, randomized, controlled placebo and double-blind study. Forty-eight participants performed muscular training protocol. Subjects practiced a protocol training with 60% of the load followed by 80% of the load, measured through 1-repetition maximum test, in all sessions of the training protocol. The training protocol consisted in performing 3 sets of 7 repetitions with 60% of 1-RM, and 4 set of 7 repetitions with 80% of 1-RM. This protocol was performed in every sessions, three times a week, employing leg press and leg extension machines.

Phototherapy, active or placebo, were applied in 6 different points of anterior muscle of the thigh before and after each training session. Only one investigator, that did not participate in any phase of the assessments and trainings sessions, knew about what program is active or placebo in phototherapy device. Randomisation carried out by a simple drawing of lots (A, B, C, or D) in the first visit. The phototherapy unit emitted the same sound regardless of the program used, active or placebo. Either strength training lasted 12 weeks and assessments were performed at baseline, 4, 8 and 12 weeks. There were evaluated maximal voluntary contraction (MVC), concentric torque, bilateral thigh perimetry and 1-repetition maximum test (1-RM).

研究类型

介入性

注册 (实际的)

阶段

不适用

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习地点

巴西
- SP
  - São Paulo、SP、巴西、01504-001
    - Universidade Nove de Julho

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年至 35年 (成人)

接受健康志愿者

是的

有资格学习的性别

男性

描述

Inclusion Criteria:

healthy individuals,
active, that performed less than two exercise sessions per week
when they presented musculoskeletal injury to the hips or knees in the previous 2 months,
used pharmacological agents or nutritional supplements regularly, and
Subjects that did not attend a minimum rate of 80% of all strength training sessions
Suffered musculoskeletal injury during the ongoing of the study were also excluded.

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

主要用途：支持治疗
分配：随机化
介入模型：并行分配
屏蔽：四人间

手臂数量

武器和干预

参与者组/臂	干预/治疗
实验性的：Group A - Active or Placebo Phototherapy Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo. The subjects allocated in group A, received program 1 before strength training, and the same program 1 after training.	设备：Active or Placebo Phototherapy (MR4) 其他名称： MR4 设备 - 结合了超脉冲激光、红色和红外 LED 的设备（Multi Radiance Medical，Solon，OH，USA）
实验性的：Group B - Active or Placebo Phototherapy Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo. The subjects allocated in group B, received program 1 before strength training, and program 2 after training.	设备：Active or Placebo Phototherapy (MR4) 其他名称： MR4 设备 - 结合了超脉冲激光、红色和红外 LED 的设备（Multi Radiance Medical，Solon，OH，USA）
实验性的：Group C - Active or Placebo Phototherapy Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo. The subjects allocated in group C, received program 2 before strength training, and program 1 after training.	设备：Active or Placebo Phototherapy (MR4) 其他名称： MR4 设备 - 结合了超脉冲激光、红色和红外 LED 的设备（Multi Radiance Medical，Solon，OH，USA）
实验性的：Group D - Active or Placebo Phototherapy Participants enrolled in this group performed a training protocol for 12 weeks with light application before and after the exercise protocol. The phototherapy device was divided in program 1 and program 2. One of these programs consisted in active phototherapy and the other placebo. The subjects allocated in group D, received program 2 before strength training, and program 2 after training.	设备：Active or Placebo Phototherapy (MR4) 其他名称： MR4 设备 - 结合了超脉冲激光、红色和红外 LED 的设备（Multi Radiance Medical，Solon，OH，USA）

研究衡量的是什么？

主要结果指标

结果测量	措施说明	大体时间
Change from baseline Maximum voluntary contraction in the isokinetic dynamometer (MVC) at 12 weeks 大体时间：12 weeks	Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training	12 weeks
Change from baseline Concentric Torque at 12 weeks 大体时间：12 weeks	Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training	12 weeks

次要结果测量

结果测量	措施说明	大体时间
1-RM test 大体时间：12 weeks	Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training. This test estimated the load of the exercises.	12 weeks

其他结果措施

结果测量	措施说明	大体时间
Thigh perimetry 大体时间：12 weeks	Muscle mass measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training.	12 weeks

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

University of Nove de Julho

合作者

Fundação de Amparo à Pesquisa do Estado de São Paulo

调查人员

研究主任：Ernesto Leal-Junior, PhD、University of Nove de Julho

出版物和有用的链接

负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。

一般刊物

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始

2016年3月1日

初级完成 (实际的)

2016年8月1日

研究完成 (实际的)

2016年10月1日

研究注册日期

首次提交

2016年3月11日

首先提交符合 QC 标准的

2016年3月16日

首次发布 (估计)

2016年3月22日

研究记录更新

最后更新发布 (估计)

2016年10月20日

上次提交的符合 QC 标准的更新

2016年10月18日

最后验证

2016年10月1日

Phototherapy Applied in Association With Muscular Training