The Influence of Hand Immersion Duration on Manual Performance

Objective:To investigate the effect of hand immersion duration on manipulative ability and tactile sensitivity.Background:Individuals in maritime settings often work with hands that have been immersed in water. Although research has shown that hand immersion duration differentially impacts skin adhesion and tactile sensitivity, the effect of hand immersion on manipulative ability has not been directly tested. Given how critical manipulative ability is for the safety and performance of those working at sea, the effect of hand immersion duration on manual performance was investigated.Method:Tests of manipulative ability (Purdue Pegboard, Grooved Pegboard, reef knot untying) and tactile sensitivity (Touch-Test) were completed following no-exposure, short-exposure, and long-exposure hand immersions in thermoneutral water.Results:Compared to the no immersion condition, the Purdue Pegboard performance was reduced in both immersion conditions (short exposure, –11%; long exposure, –8%). A performance decrement wa...