|Document ID (ISN)||45814|
|ISSN - Serial title
||1775-8785 - Archives des maladies professionnelles
|Convention or series no.
||Baumann M., Ley F.X.
||Magnesium deficiency and heat cramps
||Déficit magnésique et crampes de chaleur [in French]|
||1985, Vol.46, No.4, p.251-256. Illus. 19 ref.
||This study investigates the role of magnesium deficiency in the development of heat cramps, included in Schedule 58 of the list of occupational diseases in France. The study sample included 53 underground miners divided into 3 groups: 19 workers acclimatised to work in a hot environment, 17 workers with episodes of heat cramps in their past, and 17 newly-hired workers. Blood, sweat and urine tests revealed: 1) red-cell magnesium concentration fell significantly in the newly-hired workers after 8 weeks of work in a hot environment; 2) a high rate of magnesium elimination through sweat (5mmol/24h) occurs in some subjects; 3) a significantly higher concentration of magnesium in the sweat of workers with past episodes of heat cramps. These results indicate a direct role of magnesium deficiency in the development of heat cramps, and they also show that some people have a predisposition to lose this cation through sweat.
||electrolyte requirements; heat tolerance; underground mining; heat cramps; determination in biological matter; hot workplaces; potash mining
||magnesium; occupational diseases; determination in urine; determination in blood; France
||D - Periodical articles
||Mines and quarries
|Broad subject area(s)
Mining and quarrying
Heat and cold