Genetic, acclimatizational and anthropometric factors in hand cooling among North and South Chinese


  • Joseph K. So

    1. Department of Anthropology, State University of New York at Buffalo, 4242 Ridge Lea Road, Buffalo, N.Y. 14226
    Current affiliation:
    1. Department of Anthropology, University of Manitoba, Winnipeg, Manitoba R3T 2N2 Canada
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The left hands of unacclimatized North Chinese (N = 16) and South Chinese (N = 13) were exposed to 5°C water for 30 minutes followed by a 10 minute recovery period. Significant differences independent of body composition were found between the two samples on mean 30 minute temperature during immersion, time and temperature of the onset of initial CIVD (cold-induced vasodilation) at 0.01, 0.05 and 0.10 levels respectively. The result suggests the presence of a genetic component in the cold responses of Continental Asian populations and the possibility of the presence of a clinal distribution of cold response in Asia.