Cutaneous Vascular Responses of Dehydrated Men Following Ingestion of Saline or Water 1

Summary

In 3 dehydrated male subjects, ingestion of water and saline were equally effective at triggering immediate increases in sweating. Sustained increases in cutaneous volume opacity pulse amplitudes were observed only after water ingestion. Since both saline and water ingestion induced increased sweating while cutaneous vasodilatation only occurred after water intake, support was indicated for the concept that dilatation of the cutaneous vascular bed is independent of the activity of eccrine sweat glands.