Characteristics of cold-induced vasodilation among Tibetans and Han Chinese at high altitudes.

ABSTRACT:

Background

Cold-induced vasodilation (CIVD) reduces the risk of local cold injuries. There are obvious differences in CIVD characteristics among different ethnic groups. This study aimed to compare cold tolerance manifested through CIVD responses in indigenous Tibetans and Han residents in Tibet.

Methods

A total of 12 Tibetans and 10 Han individuals (residence duration at high altitude > 5 years) from high altitudes were recruited in the study. The CIVD test was performed by immersing the participants' middle finger of the non-dominant hand in cold water (0 ℃) for 30 min followed by recovery for 10 min at a temperature of 25 ± 1 ℃. During the CIVD tests, the participants provided perceptual responses for the immersed hand every 5 min. The participants completed their baselin

SUBMITTER: Xie HC 

PROVIDER: S-EPMC12487105 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature