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首页> 外文期刊>Journal of athletic training >Limb Blood Flow After Class 4 Laser Therapy
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Limb Blood Flow After Class 4 Laser Therapy

机译：4类激光治疗后的肢体血流

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Context: Laser therapy is purported to improve blood flow in soft tissues. Modulating circulation would promote healing by controlling postinjury ischemia, hypoxia, edema, and secondary tissue damage. However, no studies have quantified these responses to laser therapy. Objective: To determine a therapeutic dose range for laser therapy for increasing blood flow to the forearm. Design: Crossover study. Setting: Controlled laboratory setting. Patients or Other Participants: Ten healthy, college-aged men (age = 20.80 ± 2.16 years, height = 177.93 ± 3.38 cm, weight = 73.64 ± 9.10 kg) with no current history of injury to the upper extremity or cardiovascular conditions. Intervention(s): A class 4 laser device was used to treat the biceps brachii muscle. Each grid point was treated for 3 to 4 seconds, for a total of 4 minutes. Each participant received 4 doses of laser therapy: sham, 1 W, 3 W, and 6 W. Main Outcome Measure(s): The dependent variables were changes in blood flow, measured using venous occlusion plethysmography. We used a repeated-measures analysis of variance to analyze changes in blood flow for each dose at 2, 3, and 4 minutes and at 1, 2, 3, 4, and 5 minutes after treatment. The Huynh-Feldt test was conducted to examine differences over time. Results: Compared with baseline, blood flow increased over time with the 3-W treatment (F3,9 = 3.468, P < .011) at minute 4 of treatment (2.417 ± 0.342 versus 2.794 ± 0.351 mL/min per 100 mL tissue, P = .032), and at 1 minute (2.767 ± 0.358 mL/min per 100 mL tissue, P < .01) and 2 minutes (2.657 ± 0.369 mL/min per 100 mL tissue, P = .022) after treatment. The sham, 1-W, and 6-W treatment doses did not change blood flow from baseline at any time point. Conclusions: Laser therapy at the 3-W (360-J) dose level was an effective treatment modality to increase blood flow in the soft tissues.
机译：背景：激光疗法据称可改善软组织中的血流。调节循环可通过控制损伤后局部缺血，缺氧，水肿和继发性组织损伤来促进愈合。但是，尚无研究量化对激光治疗的反应。目的：确定用于增加前臂血流量的激光治疗的剂量范围。设计：交叉研究。设置：受控的实验室设置。患者或其他参与者：十名健康的大学年龄男性（年龄= 20.80±2.16岁，身高= 177.93±3.38 cm，体重= 73.64±9.10 kg），当前没有上肢或心血管疾病的损伤史。干预措施：使用4类激光设备治疗肱二头肌肱二头肌。将每个网格点处理3到4秒，总计4分钟。每个参与者接受4剂量的激光治疗：假，1 W，3 W和6W。主要指标：因变量是血流量的变化，使用静脉阻塞体积描记法测量。我们使用方差的重复测量分析来分析治疗后第2、3和4分钟以及第1、2、3、4和5分钟时每种剂量的血流变化。进行了Huynh-Feldt检验，以检查一段时间内的差异。结果：与基线相比，在治疗的第4分钟（每100 mL组织2.417±0.342 vs 2.794±0.351 mL / min）的3-W治疗（F3,9 = 3.468，P <.011），血流量随时间增加， P = .032），在治疗后第1分钟（每100 mL组织2.767±0.358 mL / min，P <.01）和2分钟（每100 mL组织2.657±0.369 mL / min，P = .022）。假，1-W和6-W的治疗剂量在任何时间都不会改变基线的血流量。结论：3 W（360-J）剂量水平的激光治疗是增加软组织血流量的有效治疗方式。

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