Phototherapy Applied in Association With Muscular Training: Evaluation of Different Moments of Applications
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 48
- 试验地点
- 1
- 主要终点
- Change from baseline Maximum voluntary contraction in the isokinetic dynamometer (MVC) at 12 weeks
研究概览
简要总结
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.
详细描述
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).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
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
- •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.
排除标准
- 未提供
研究组 & 干预措施
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.
干预措施: Active or Placebo Phototherapy (MR4) (Device)
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.
干预措施: Active or Placebo Phototherapy (MR4) (Device)
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.
干预措施: Active or Placebo Phototherapy (MR4) (Device)
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.
干预措施: Active or Placebo Phototherapy (MR4) (Device)
结局指标
主要结局
Change from baseline Maximum voluntary contraction in the isokinetic dynamometer (MVC) at 12 weeks
时间窗: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training
Change from baseline Concentric Torque at 12 weeks
时间窗: 12 weeks
Functional performance measure - performed in baseline, 4 weeks, 8 weeks and 12 weeks after the beginning of the muscular training
次要结局
- 1-RM test(12 weeks)
研究者
Adriane Aver Vanin
Phd researcher
University of Nove de Julho