Key result
Wrist pulse characteristics showed high correlation at the Cun, Guan, and Chi positions primarily in power spectrum and time-frequency features, while time domain features correlated highly between hands.
Why the study?
To analyze the correlation and differences of wrist pulse characteristics at different acquisition positions (Cun, Guan, and Chi) to identify pulse and physiological information.
Cross-Sectional (n=206)
No
This study provides quantitative evidence for the correlation and differences of wrist pulse characteristics at Cun, Guan, and Chi positions, supporting the objective diagnosis of pulse conditions in Traditional Chinese Medicine.
Hypothesis-generating for position-specific pulse parameters; leaves open translation to diagnostic algorithms.
To analyze the correlation of pulse characteristics at different acquisition positions, the pulse parameters that can identify different pulse and physiological information are given. In this paper, the relevance and difference of wrist pulse characteristics at Cun, Guan and Chi position were studied by pulse diagnosis instrument and time-frequency, frequency-domain and time-frequency domain analysis methods etc. Firstly, the pulse information of Cun, Guan and Chi position is collected from 206 healthy adults. The 66 pulse characteristics of each sampled location are extracted. In addition, the 66 feature indexes of each position are used to calculate the Spearman correlation coefficients among Cun, Guan, Chi position as well as the both hands in detail. Finally, the relevance and difference of wrist pulse at Cun, Guan and Chi position were studied and analyzed by significance test. The pulse characteristics with high correlation at Cun-Guan-Chi position of left and right hands are mainly power spectrum characteristics and time-frequency characteristics, while the features with high correlation between both hands mostly concentrate in the time domain characteristics. This work has studied the relationship between the position of pulse acquisition from quantitative and qualitative aspects, and laid a foundation for the objective diagnosis of pulse condition and the comprehensive disclosure of pulse information.
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Li et al. (2021) conducted a cross-sectional in Healthy (n=206). Wrist pulse characteristics at Cun, Guan, and Chi positions was evaluated on Correlation of pulse characteristics (time domain, frequency domain, time-frequency domain, high-order statistics) among Cun, Guan, and Chi positions. Wrist pulse characteristics showed high correlation at the Cun, Guan, and Chi positions primarily in power spectrum and time-frequency features, while time domain features correlated highly between hands.
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