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一息七八至曰疾，阳极阴竭脉乃然。
—— 脉经 · 卷一（体例）
Seven or eight beats to one breath is called the racing pulse—when yang is at its extreme and yin is exhausted, the pulse becomes so.
脉来急疾，一息七至以上（每分钟一百二十次以上）。
The pulse comes in urgent succession, more than seven beats per breath (over one hundred and twenty per minute).
主阳极阴竭，元气欲脱之危候。亦见于热毒内盛之重证。疾而有力为阳亢热极，疾而无力为元阳将脱。
A critical sign indicating yang at its extreme and yin exhausted, with original qi on the verge of collapse. It also appears in severe toxic-heat patterns. Racing with force reflects extreme yang heat; racing without force signals impending collapse of original yang.
@misc{bencaodian-ji-mai,
author = {{Bencaodian Editorial}},
title = {Jí mài 疾脉 (Racing)},
year = {2026},
howpublished = {Bencao Dian: A Bilingual Knowledge Graph of Traditional Chinese Medicine},
url = {https://bencaodian.org/zh/pulses/ji-mai},
urldate = {2026-04-09},
note = {CC BY-SA 4.0}
}