Field Trials of an Individual Hydration System

    Overview

    • How much water do agricultural field workers need, and how much do they get? 
    • What else besides the obligatory provision of water and cups affects actual fluid replacement? 
    • How are workers and their work affected by fluid loss during the day? 
    • What can be done to reduce their chances of experiencing harmful dehydration? 


    Two 1999 field trials conducted by researchers from the University of California at Berkeley began to find out.  The studies attempted to assess effects of an alternative form of water delivery on actual water intake, comfort and performance.  In both studies, we provided agricultural workers with CamelBak hydration systems (CB), and spoke to workers about the dangers of heat stress, how it develops, and the importance of staying well hydrated.  Results of the studies are encouraging and suggest that workers are open to innovations that improve their access to water. Preliminary results also suggest that, at least when combined with education about heat stress physiology, use of an individual hydration system can decrease the chance of a worker suffering dehydration, and it may also help sustain performance capacity throughout the day.