What question did this study set out to answer?

To assess whether acupuncture at the Neiguan (P6) acupoint enhances vagal modulation as measured by heart rate variability.

January 1, 2005The American Journal of Chinese Medicine

Increase in the Vagal Modulation by Acupuncture at Neiguan Point in the Healthy Subjects

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Why the study?

Does acupuncture at the Neiguan (P6) point improve vagal modulation in healthy subjects?

Population

111 healthy subjects (n=39 P6 acupuncture, n=38 sham acupuncture, n=34 no treatment)

Comparison

Acupuncture at the Neiguan (P6) point vs Sham acupuncture or no treatment

Design

Cohort

Follow-up

After acupuncture

Authors

SHSheng‐Teng HuangChina Medical University GCGau-Yang ChenNational Yang Ming Chiao Tung University HLHuey‐Ming LoFu Jen Catholic University

Discussion

Member takes

Implication

P6 acupuncture was associated with increased vagal modulation in healthy subjects; hypothesis-generating and should not yet change practice.

Key Points

To assess whether acupuncture at the Neiguan (P6) acupoint enhances vagal modulation as measured by heart rate variability.
Compared heart rate variability parameters among 39 subjects receiving P6 acupuncture, 38 receiving sham acupuncture, and 34 receiving no treatment.
Used normalized high-frequency power as an index of vagal modulation and the low-to-high frequency power ratio to assess sympathovagal balance.
Normalized high-frequency power increased significantly from 28.1 ± 12.6 nu to 30.7 ± 14.1 nu in the P6 acupuncture group, with no significant changes in the sham (30.6 ± 13.7 nu to 31.8 ± 13.8 nu) or no-treatment groups (30.1 ± 15.0 nu to 30.1 ± 15.7 nu).
Mean RR interval increased significantly following intervention in both the P6 and sham acupuncture groups, whereas the no-treatment group showed no significant differences across sessions.

Structured PICO

Does acupuncture at the Neiguan (P6) point improve vagal modulation in healthy subjects?

Population

111 healthy subjects (n=39 P6 acupuncture, n=38 sham acupuncture, n=34 no treatment)

Intervention

Acupuncture at the Neiguan (P6) point

Comparator

Sham acupuncture or no treatment

Outcome

Vagal modulation measured by normalized high-frequency power of heart rate variabilitysurrogate

Acupuncture at the Neiguan (P6) point significantly increases vagal modulation in healthy subjects, providing a potential physiological mechanism for its clinical anti-emetic effects.

Cite This Study

Huang et al. (2005) studied this question.

synapsesocial.com/papers/6a735dbb4e82b1a46ac67fc4 https://doi.org/10.1142/s0192415x0500276x

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Implication

P6 acupuncture was associated with increased vagal modulation in healthy subjects; hypothesis-generating and should not yet change practice.

Increase in the Vagal Modulation by Acupuncture at Neiguan Point in the Healthy Subjects

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Increase in the Vagal Modulation by Acupuncture at Neiguan Point in the Healthy Subjects

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Also Consider

Also Consider