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Journal of Chinese Integrative Medicine ›› 2011, Vol. 9 ›› Issue (12): 1319-1325.doi: 10.3736/jcim20111207

• Original Chinical Research • Previous Articles     Next Articles

Ryodoraku as a tool monitoring the effects of walking exercise

Se-Der Wu1, Jen-Tzer Gau2, Yuh-Hai Wang3()   

  1. 1. Department of Emergency, Pingtung Christian Hospital, Pingtung, Taiwan, China
    2. Department of Geriatric Medicine and Gerontology, College of Osteopathic Medicine, Ohio University, Athens, Ohio 45701, USA
    3. Institute of Natural Healing Sciences, Nanhua University, Chiayi, Taiwan, China
  • Received:2011-07-26 Accepted:2011-08-22 Online:2011-12-20 Published:2011-12-15

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Objective: To investigate the possibility of using Ryodoraku as a tool to indicate sympathetic neuronal activity.
Methods: Twenty-two female college students were assigned to an treadmill exercise program (three times a week for six weeks), and another 25 were assigned as controls. Skin conductance levels of the subjects were measured at 24 Ryodoraku points on the wrists and the ankles, along with heart rate variability (HRV) analysis, during and after the treadmill exercise period.
Results: The six-week exercise training resulted in a significant elevation of the average electrical conductance, which returned to the pre-training level after three months of cessation of the exercise training.
Conclusion: HRV data have shown no similar changes, suggesting that Ryodoraku is a useful tool in detecting subtle, non-cardiovascular physical responses.

Key words: Ryodoraku, galvanic skin response, heart rate, acupuncture points

"

Group n Age (years) BMI (kg/m2) HR (beats/min) MEC (μA)
Exercise 22 21.4±0.8 19.4±1.6 69.9±8.5 51.3±21.8
Control 25 21.0±0.9 20.0±1.9 75.2±9.7 56.9±17.6

"

Index Exercise Control P-value (between-subjects)
Number of subjects (n) 22 25
HR (beats/min)
Before 69.9±8.5 75.2±9.7 0.054
After 71.9±9.4 74.9±9.9 0.291
P-value (within-subjects) 0.201 0.911
BMI (kg/m2)
Before 19.4±1.6 20.0±1.9 0.318
After 19.2±1.4 20.0±1.9 0.103
P-value (within-subjects) 0.004* 0.718
SDNN (ms)
Before 47.3±17.4 44.0±14.2 0.470
After 44.1±17.6 44.5±18.2 0.948
P-value (within-subjects) 0.349 0.867
RMSSD (ms)
Before 46.3±25.4 40.9±16.3 0.387
After 44.7±23.9 44.4±23.9 0.963
P-value (within-subjects) 0.751 0.399
LF (ms2)
Before 666±513 560±560 0.503
After 533±414 485±478 0.712
P-value (within-subjects) 0.272 0.463
HF (ms2)
Before 978±104 1 766±646 0.400
After 981±107 7 937±973 0.885
P-value (within-subjects) 0.991 0.231
HFn
Before 54.4±17.4 58.0±16.2 0.471
After 57.3±17.5 61.8±17.3 0.386
P-value (within-subjects) 0.386 0.347

Figure 1

Electrical current of the exercise group and the control group Data were expressed as mean±standard deviation; n=22 in exercise group, n=25 in control group, and n=17 in exercise group after three-month follow-up. Between-subjects significance was set at P<0.05. **P<0.01, vs baseline data of respective group; ΔΔP<0.01, vs exercise group."

Figure 2

Scatterplot of body mass index vs meridian electrical current (n=94) r=-0.023 (P>0.05) by Pearson's test."

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