This study investigate the potential impact of low power laser (LPL), an non-invasive physical therapy, on the cardiovascular system by focusing on its effect on heart rate and autonomic tone. Study will recruit healthy volunteers and non-invasively monitor their electrocardiogram and digital pulse in response to LPL. In addition, the potential involvement of autonomic tone will be clarify by topically applying gel (2% lidocaine gel)
This study investigate the potential impact of low power laser (LPL), an non-invasive physical therapy, on the cardiovascular system by focusing on its effect on heart rate and autonomic tone. Study will recruit healthy volunteers (age 20-60; having no diabetes, hypertension, or other medical problem) and non-invasively monitor their electrocardiogram and digital pulse in response to LPL (with an intensity for relieving pain). In addition, the potential involvement of autonomic tone will be clarify by topically applying gel (2% lidocaine gel) at the site 2 cm distal to the applying site.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
BASIC_SCIENCE
Masking
NONE
Enrollment
45
Low power laser with an intensity for pain relieving will be applied to volunteers
heart rate
the heart rate before, during, and after low power LASER
Time frame: Continuous heart rate (HR) recording will start when it is stable after a brief resting (10 min); maintained during stimulation (30 min), and lasted for a period until the HR recovers.
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