The Influence of Acupressure at Extra 1 Acupuncture Point on the Spectral Entropy of the EEG and the LF/HF Ratio of Heart Rate Variability
2011

The Effect of Acupressure on EEG and Heart Rate Variability

Sample size: 48 publication Evidence: moderate

Author Information

Author(s): Young-Chang P. Arai, Takahiro Ushida, Takako Matsubara, Kazuhiro Shimo, Hiroshi Ito, Yuko Sato, Yoshiko Wakao, Toru Komatsu

Primary Institution: Aichi Medical University, School of Medicine

Hypothesis

Acupressure at the Extra 1 point would induce sedation and change sympatho-parasympathetic nerve balance.

Conclusion

Acupressure on the Extra 1 point significantly reduced EEG spectral entropy in both genders, but affected the LF/HF ratio of heart rate variability only in females.

Supporting Evidence

  • Acupressure significantly reduced EEG spectral entropy values in both groups.
  • The LF/HF ratio of heart rate variability significantly decreased in both groups.
  • Only females in the Extra 1 group showed a significant decrease in the LF/HF ratio during and after acupressure.

Takeaway

Pressing on a special point on your forehead can help you feel more relaxed and calm, especially for girls.

Methodology

Forty-eight volunteers were randomly assigned to receive acupressure at either the Extra 1 point or a sham point, with measurements taken before, during, and after the acupressure.

Potential Biases

Potential bias due to the lack of a true control group for comparison.

Limitations

The study lacked a control group and did not assess the effects of acupressure over a longer period.

Participant Demographics

48 volunteers, 24 males and 24 females, ASA physical status I.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1093/ecam/nen061

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