Tags

Type your tag names separated by a space and hit enter

Urinary indices of hydration status.
Int J Sport Nutr 1994; 4(3):265-79IJ

Abstract

Athletes and researchers could benefit from a simple and universally accepted technique to determine whether humans are well-hydrated, euhydrated, or hypohydrated. Two laboratory studies (A, B) and one field study (C) were conducted to determine if urine color (Ucol) indicates hydration status accurately and to clarify the interchangeability of Ucol, urine osmolality (Uosm), and urine specific gravity (Usg) in research. Ucol, Uosm, and Usg were not significantly correlated with plasma osmolality, plasma sodium, or hematocrit. This suggested that these hematologic measurements are not as sensitive to mild hypohydration (between days) as the selected urinary indices are. When the data from A, B, and C were combined, Ucol was strongly correlated with Usg and Uosm. It was concluded that (a) Ucol may be used in athletic/industrial settings or field studies, where close estimates of Usg or Uosm are acceptable, but should not be utilized in laboratories where greater precision and accuracy are required, and (b) Uosm and Usg may be used interchangeably to determine hydration status.

Authors+Show Affiliations

University of Connecticut Human Performance Laboratory, Storrs 06269-1110.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

7987361

Citation

Armstrong, L E., et al. "Urinary Indices of Hydration Status." International Journal of Sport Nutrition, vol. 4, no. 3, 1994, pp. 265-79.
Armstrong LE, Maresh CM, Castellani JW, et al. Urinary indices of hydration status. Int J Sport Nutr. 1994;4(3):265-79.
Armstrong, L. E., Maresh, C. M., Castellani, J. W., Bergeron, M. F., Kenefick, R. W., LaGasse, K. E., & Riebe, D. (1994). Urinary indices of hydration status. International Journal of Sport Nutrition, 4(3), pp. 265-79.
Armstrong LE, et al. Urinary Indices of Hydration Status. Int J Sport Nutr. 1994;4(3):265-79. PubMed PMID: 7987361.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Urinary indices of hydration status. AU - Armstrong,L E, AU - Maresh,C M, AU - Castellani,J W, AU - Bergeron,M F, AU - Kenefick,R W, AU - LaGasse,K E, AU - Riebe,D, PY - 1994/9/1/pubmed PY - 1994/9/1/medline PY - 1994/9/1/entrez SP - 265 EP - 79 JF - International journal of sport nutrition JO - Int J Sport Nutr VL - 4 IS - 3 N2 - Athletes and researchers could benefit from a simple and universally accepted technique to determine whether humans are well-hydrated, euhydrated, or hypohydrated. Two laboratory studies (A, B) and one field study (C) were conducted to determine if urine color (Ucol) indicates hydration status accurately and to clarify the interchangeability of Ucol, urine osmolality (Uosm), and urine specific gravity (Usg) in research. Ucol, Uosm, and Usg were not significantly correlated with plasma osmolality, plasma sodium, or hematocrit. This suggested that these hematologic measurements are not as sensitive to mild hypohydration (between days) as the selected urinary indices are. When the data from A, B, and C were combined, Ucol was strongly correlated with Usg and Uosm. It was concluded that (a) Ucol may be used in athletic/industrial settings or field studies, where close estimates of Usg or Uosm are acceptable, but should not be utilized in laboratories where greater precision and accuracy are required, and (b) Uosm and Usg may be used interchangeably to determine hydration status. SN - 1050-1606 UR - https://www.unboundmedicine.com/medline/citation/7987361/Urinary_indices_of_hydration_status_ L2 - https://medlineplus.gov/urineandurination.html DB - PRIME DP - Unbound Medicine ER -