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Blood pressure response to 1-month, electrolyte-carbohydrate beverage consumption.
J Occup Environ Hyg 2006; 3(3):131-6JO

Abstract

There are many occupations where workers undergo daily exposure to rigorous environments, often with only limited access to fluids. Such conditions warrant the use of an electrolyte rehydration beverage; however, the long-term use of such beverages may pose potential health risks due to the increase in dietary sodium intake. This study proposed to determine blood pressure response to daily electrolyte-beverage consumption during strenuous work in a group of young normotensive workers. Three groups of tree planters (mean age = 23 +/- 3 years, n = 51) were provided with electrolyte-beverage (3 mmol/L potassium, 18 mmol/L sodium), electrolyte-carbohydrate-beverage (addition of 333 mmol/L carbohydrate to electrolyte-beverage), or water at a rate of 500 mL/hour during the working day. Systolic and diastolic blood pressures were measured each week over the course of 23 working days (30 days total elapsed time). Planters spent 8.4 +/- 1.0 hours/day at heart rates of 124 +/- 10 b/min. There were no differences between the groups for volume of fluid consumed; however, the electrolyte beverages appeared to be more effective than water at maintaining hydration during planting. Daily sodium intake approximated estimated losses in all groups, with total intake lowest in the water group. Resting plasma volume expanded by approximately 4% in all groups, from the first to the 30th day. No changes were observed over time for systolic or diastolic blood pressure. One month of daily consumption of approximately 4.5 L of electrolyte-beverage or electrolyte-carbohydrate-beverage did not appear to affect resting blood pressure in young normotensive workers engaged in heavy physical work.

Authors+Show Affiliations

School of University Arts and Sciences, Selkirk College Castlegar, British Columbia, Canada. droberts@selkirk.ca

Pub Type(s)

Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16484177

Citation

Roberts, Delia. "Blood Pressure Response to 1-month, Electrolyte-carbohydrate Beverage Consumption." Journal of Occupational and Environmental Hygiene, vol. 3, no. 3, 2006, pp. 131-6.
Roberts D. Blood pressure response to 1-month, electrolyte-carbohydrate beverage consumption. J Occup Environ Hyg. 2006;3(3):131-6.
Roberts, D. (2006). Blood pressure response to 1-month, electrolyte-carbohydrate beverage consumption. Journal of Occupational and Environmental Hygiene, 3(3), pp. 131-6.
Roberts D. Blood Pressure Response to 1-month, Electrolyte-carbohydrate Beverage Consumption. J Occup Environ Hyg. 2006;3(3):131-6. PubMed PMID: 16484177.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Blood pressure response to 1-month, electrolyte-carbohydrate beverage consumption. A1 - Roberts,Delia, PY - 2006/2/18/pubmed PY - 2006/7/11/medline PY - 2006/2/18/entrez SP - 131 EP - 6 JF - Journal of occupational and environmental hygiene JO - J Occup Environ Hyg VL - 3 IS - 3 N2 - There are many occupations where workers undergo daily exposure to rigorous environments, often with only limited access to fluids. Such conditions warrant the use of an electrolyte rehydration beverage; however, the long-term use of such beverages may pose potential health risks due to the increase in dietary sodium intake. This study proposed to determine blood pressure response to daily electrolyte-beverage consumption during strenuous work in a group of young normotensive workers. Three groups of tree planters (mean age = 23 +/- 3 years, n = 51) were provided with electrolyte-beverage (3 mmol/L potassium, 18 mmol/L sodium), electrolyte-carbohydrate-beverage (addition of 333 mmol/L carbohydrate to electrolyte-beverage), or water at a rate of 500 mL/hour during the working day. Systolic and diastolic blood pressures were measured each week over the course of 23 working days (30 days total elapsed time). Planters spent 8.4 +/- 1.0 hours/day at heart rates of 124 +/- 10 b/min. There were no differences between the groups for volume of fluid consumed; however, the electrolyte beverages appeared to be more effective than water at maintaining hydration during planting. Daily sodium intake approximated estimated losses in all groups, with total intake lowest in the water group. Resting plasma volume expanded by approximately 4% in all groups, from the first to the 30th day. No changes were observed over time for systolic or diastolic blood pressure. One month of daily consumption of approximately 4.5 L of electrolyte-beverage or electrolyte-carbohydrate-beverage did not appear to affect resting blood pressure in young normotensive workers engaged in heavy physical work. SN - 1545-9624 UR - https://www.unboundmedicine.com/medline/citation/16484177/Blood_pressure_response_to_1_month_electrolyte_carbohydrate_beverage_consumption_ L2 - http://www.tandfonline.com/doi/full/10.1080/15459620500524722 DB - PRIME DP - Unbound Medicine ER -