Influence of electroacupuncture stimulation on skin temperature, skin blood flow, muscle blood volume and pupil diameter.

OBJECTIVE: To examine the effect of electroacupuncture (EA) stimulation on multiple physiological indices and to evaluate both local and systemic physiological responses induced by the stimulation. METHODS: 15 healthy male college students participated in an experimental crossover study. They received two kinds of interventions: one with EA stimulation and one without EA stimulation on different days. Two disposable acupuncture needles were inserted at two traditional acupuncture points (ST36 and ST38), located along the anterior tibialis muscle. EA stimulation was administered for 10 min. Skin temperature (ST), skin blood flow (SBF) and muscle blood volume (MBV) were recorded near the stimulation sites, while the pupil diameter (PD) was measured before, during and after the interventions. RESULTS: ST, SBF and MBV increased significantly following EA stimulation. PD of the right and left eyes decreased significantly following EA stimulation. There was a significant difference in ST responses between the groups (P=0.001). For SBF, MBV and PD, no significant differences were demonstrated between the groups. CONCLUSIONS: Our study showed that 10 min of EA stimulation increased ST, SBF and MBV, and decreased PD, compared to baseline, while no significant change was observed in the control group. This suggests that EA stimulation alters local blood flow and ST, and these responses are likely mediated via segmental spinal reflexes, supraspinal reflexes involving parasympathetic activation, and other mechanisms.

Effect of Different Dosages of ST36 Indirect Moxibustion on the Skin Temperature of the Lower Legs and Feet.

Background: Indirect moxibustion (IM) has been previously performed between the spinous process while recording skin temperature of the trunk. However, moxibustion is often applied not only to acupuncture points on the back, but also to points located on the limbs. Thus, there is a need to investigate skin temperature (ST) responses following IM applied to the limbs. Methods: In Experiment 1 (Exp 1), subjects were randomly assigned to three groups: the left IM stimulation, right IM stimulation and control groups. In Experiment 2 (Exp 2), the subjects underwent two experimental sessions consisting of a single stimulation of IM or triple stimulations of IM. The IM stimulation was administered to the ST36 acupuncture point. A thermograph was used to obtain the ST on the lower limbs. Results: In Exp 1, the ST of the lower limbs increased in the stimulation groups whereas there was no increase in the non-stimulation group. In Exp 2, no significant response occurred between the single and triple stimulation of IM groups for all observed sites except for the left ankle ST. Conclusions: Lower limb ST increased following IM application to the ST36 point. No difference was observed between the dosage of the stimulation and ST responses.

Another Understanding for Effects of Physical Stimuli on Modification of Autonomic Nerve System by Two Kinds of Stimuli on Feet / 日本温泉気候物理医学会雑誌

<b>Background:</b> In one series of studies, we observed the effects of acupuncture treatment (AT) on the autonomic nerve system (ANS). We experimented from various view-points. At last, we discovered a specific pattern for modifying ANS status, which showed that functions of the parasympathetic nerve increased while those of the sympathetic nerve decreased. To further study systematic modification of ANS balance, we focused on the lower body (feet). Moreover, two kinds of stimuli, tapping and vibration, were applied while measuring the value of finger floor distance (FFD) and heart rate (HR). Finally, the effects on ANS were discussed.<BR><b>Methods:</b> Twenty healthy subjects participated in this study, and they were divided into two groups; the tapping group and the vibration group. The former received 50 taps on the feet, and the latter received vibrations for two minutes. In order to indicate ANS status the effects of these stimuli were evaluated by FFD values and a kinetic record of changes in HR.<BR><b>Results:</b> Both groups showed improvement in FFD values, which was the same as the results for AT via modification of ANS. However, changes in HR showed a different pattern from AT; in this study sympathetic nerve) dominantly showed an increase without a decrease in parasympathetic nerve.<BR><b>Discussion and Conclusions:</b> The reasons for differences in ANS modification may be found in the role, especially in an emergency, of the lower body. The lower body is heavy in skeletal muscles, which needs energy and blood to react during acute stress. The ANS, which controls blood distribution, may shift and concentrate system blood from the smooth muscles of the stomach (controlled by parasympathetic nerve) to the skeletal muscles of the legs and feet (controlled by sympathetic nerve). Thus, this study indicated that local stimuli of the foot induced systematic ANS modification.

Another Understanding for Effects of Physical Stimuli on Modification of Autonomic Nerve System by Two Kinds of Stimuli on Feet / 日本温泉気候物理医学会雑誌

Background: In one series of studies, we observed the effects of acupuncture treatment (AT) on the autonomic nerve system (ANS). We experimented from various view-points. At last, we discovered a specific pattern for modifying ANS status, which showed that functions of the parasympathetic nerve increased while those of the sympathetic nerve decreased. To further study systematic modification of ANS balance, we focused on the lower body (feet). Moreover, two kinds of stimuli, tapping and vibration, were applied while measuring the value of finger floor distance (FFD) and heart rate (HR). Finally, the effects on ANS were discussed. Methods: Twenty healthy subjects participated in this study, and they were divided into two groups; the tapping group and the vibration group. The former received 50 taps on the feet, and the latter received vibrations for two minutes. In order to indicate ANS status the effects of these stimuli were evaluated by FFD values and a kinetic record of changes in HR. Results: Both groups showed improvement in FFD values, which was the same as the results for AT via modification of ANS. However, changes in HR showed a different pattern from AT; in this study sympathetic nerve) dominantly showed an increase without a decrease in parasympathetic nerve. Discussion and Conclusions: The reasons for differences in ANS modification may be found in the role, especially in an emergency, of the lower body. The lower body is heavy in skeletal muscles, which needs energy and blood to react during acute stress. The ANS, which controls blood distribution, may shift and concentrate system blood from the smooth muscles of the stomach (controlled by parasympathetic nerve) to the skeletal muscles of the legs and feet (controlled by sympathetic nerve). Thus, this study indicated that local stimuli of the foot induced systematic ANS modification.

Difference between the effects of one-site and three-site abdominal hot-stone stimulation on the skin-temperature changes of the lower limbs.

OBJECTIVE: To determine whether any difference exists in the skin-temperature responses of the lower limbs to hot-stone application relative to one-site and three-site abdominal application. METHODS: Twenty-five female students participated in experimental sessions after a random allocation: 14 participants received a hot-stone application on the umbilicus, superior-umbilicus, and inferior-umbilicus regions (hereafter referred to as the three-site stimulation group); and 11 participants received the hot-stone application on the umbilicus region only (hereafter referred to as the one-site stimulation group). Heated stones were applied for 9 min to participants in both groups. Four arbitrary frames (the lower leg, ankle, proximal foot, and distal foot regions) were created in order to observe and analyze the skin temperature of a lower limb using a thermograph. Observation periods were as follows: before hot-stone stimulation, immediately after stimulation, and 5, 10, 15, and 20 min after stimulation. RESULTS: There was a significant offset interaction of distal foot skin temperature between the groups. The left-side distal foot skin temperature increased at 15 and 20 min following the three-site abdominal hot-stone stimulation. The right-side distal foot skin temperature increased immediately and at 5, 10, 15, and 20 min following the three-site abdominal hot-stone stimulation. No significant change in distal foot skin temperature was observed following the one-site stimulation. CONCLUSION: Lower-limb skin temperature was altered following hot-stone stimulation applied to the abdomen, and the one-site stimulation and three-site stimulation yielded different distal foot skin-temperature reactions.

[Effects of acupuncture treatment on natural killer cell activity, pulse rate, and pain reduction for older adults: an uncontrolled, observational study].

OBJECTIVE: The aim of this study was to examine the changes in natural killer (NK) cell activity, pulse rate, and pain intensity among older adults before and after acupuncture treatment. METHODS: Fifty-six individuals (16 males and 40 females), age 60 to 82 years (mean age 72.4 ± 5.0), who were experiencing pain in the shoulder, low back, or knee, participated in the study. NK cell activity, leukocyte differentiation (granulocytes and lymphocytes), pulse rate, and blood pressure values obtained. Pain intensity was used to analyze NK cell activity, leukocytes (granulocyte counts and granulocyte-to-lymphocyte ratio), and the VAS score in accordance with the location of pain complaints before and after acupuncture treatment. RESULTS: NK cell activity decreased after acupuncture treatment for pain in the shoulder-pain and knee-pain groups. Further, the lymphocyte and granulocyte counts increased after acupuncture treatment for the shoulder-pain group. Pulse rate decreased for the shoulder-pain, low-back-pain, and knee-pain groups after acupuncture treatment. The VAS score decreased after acupuncture treatment for the shoulder-pain, low-back-pain, and knee-pain groups. CONCLUSION: This study showed that in older adults, acupuncture treatment decreases pulse rate, relieves pain in the shoulder, low back, and knee, and reduces NK-cell activity.

Difference between the effects of one-site and three-site abdominal hot-stone stimulation on the skin-temperature changes of the lower limbs / 中西医结合学报

To determine whether any difference exists in the skin-temperature responses of the lower limbs to hot-stone application relative to one-site and three-site abdominal application.

Effects of acupuncture treatment on natural killer cell activity, pulse rate, and pain reduction for older adults: an uncontrolled, observational study / 中西医结合学报

The aim of this study was to examine the changes in natural killer (NK) cell activity, pulse rate, and pain intensity among older adults before and after acupuncture treatment.

Effects of acupuncture treatment on natural killer cell activity, pulse rate, and pain reduction for older adults: an uncontrolled, observational study / 中西医结合学报

The aim of this study was to examine the changes in natural killer (NK) cell activity, pulse rate, and pain intensity among older adults before and after acupuncture treatment.