title: The Effect of Monochromatic Infrared Photo Energy on the Irritability of Myofascial Trigger Spot of Rabbit Skeletal Muscle.
abstract: Objective. To determine whether the vasodilatation effect of monochromatic infrared photo energy (MIRE) had the potential for the treatment of myofascial trigger spot (MTrS) in rabbits. Design. A randomized-controlled animal study. Subjects. Twelve adult New Zealand rabbits. Methods. For each rabbit, a MTrS (equivalent to a myofascial trigger point in humans) in one side of the biceps femoris muscle was randomly selected for MIRE treatment (experimental side), while another MTrS in the other side (control side) received a sham treatment. The intervention consisted of a daily 40 minutes treatment, three times per week for 2 weeks. The prevalence of endplate noise (EPN) loci in the MTrS was assessed before, immediately after, and one week after the completion of the 2-week treatment. Results. MIRE could suppress the prevalence of EPN in the MTrS. The degree of reduction in EPN prevalence in the MTrS between the experimental side and the control side was significantly different immediately after MIRE treatment, but not significantly different one week after MIRE treatment. Conclusion. Our study suggests that MIRE may be a useful therapeutic option for the management of the myofascial trigger point in humans.
authors.affiliation: Department of Physical Medicine and Rehabilitation, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan ; Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
authors.forename: Ta-Shen
authors.initials: TS
authors.lastname: Kuan
authors.affiliation: Department of Physical Medicine and Rehabilitation, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan ; Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
authors.forename: Yu-Ching
authors.initials: YC
authors.lastname: Lin
authors.affiliation: Department of Physical Medicine and Rehabilitation, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan ; Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
authors.forename: Wei-Chih
authors.initials: WC
authors.lastname: Lien
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
authors.forename: Pei-Chun
authors.initials: PC
authors.lastname: Hsieh
authors.affiliation: Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 70403, Taiwan.
authors.forename: Yu-Ting
authors.initials: YT
authors.lastname: Chung
authors.affiliation: Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan.
authors.forename: Sheng-Hsiang
authors.initials: SH
authors.lastname: Lin
authors.affiliation: School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan ; Department of Physical Medicine and Rehabilitation, China Medical University Hospital, Taichung 40447, Taiwan.
authors.forename: Li-Wei
authors.initials: LW
authors.lastname: Chou