Total body potassium differs by sex and race across the adult age span

Qing He, Moonseong Heo, Stanley Heshka, Jack Wang, Richard N. Pierson, Jeanine Albu, Zimian Wang, Steven B. Heymsfield, Dympna Gallagher

Research output: Contribution to journalArticle

46 Citations (Scopus)

Abstract

Background: Total body potassium (TBK) is an index of fat-free mass. Data describing changes in TBK in African American, Asian, or Hispanic populations have not been reported. Objective: The aim was to investigate possible sex and racial differences in TBK in adults over an age range of 70 y. Design: The study used longitudinal and cross-sectional data collected in a body-composition unit from 973 men and 1368 women of African American, Asian, white, and Hispanic race-ethnicity. Random coefficient models in which baseline weight and height were taken into account were applied to estimate sex-specific changes in TBK among the 4 racial-ethnic groups. Results: The ages of 30 and 31 y were identified for women and men, respectively, as the cutoffs after which TBK began to decline. Both sexes had similar racial-ethnic patterns for expected mean TBK at the age cutoffs: African Americans had the highest value, followed by whites, Hispanics, and Asians. After the age cutoffs, the decline in TBK differed by race and sex. In women, African Americans showed the most rapid decline, whereas Asians had the lowest. In men, Hispanics had the most rapid decline in TBK, followed by African Americans, whites, and Asians. Conclusion: Significant sex and racial differences exist in the rate of change in TBK with age. Further studies are needed to explore the associations of declining TBK with health risks.

Original languageEnglish (US)
Pages (from-to)72-77
Number of pages6
JournalAmerican Journal of Clinical Nutrition
Volume78
Issue number1
StatePublished - Jul 2003
Externally publishedYes

Fingerprint

African Americans
Potassium
Hispanic Americans
potassium
gender
nationalities and ethnic groups
Sex Characteristics
Body Composition
Ethnic Groups
body composition
Longitudinal Studies
Fats
Weights and Measures
Health
lipids
Population

Keywords

  • African Americans
  • Age
  • Asians
  • Hispanics
  • Race
  • Sex
  • Skeletal muscle mass
  • Total body potassium
  • Whites

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Food Science

Cite this

He, Q., Heo, M., Heshka, S., Wang, J., Pierson, R. N., Albu, J., ... Gallagher, D. (2003). Total body potassium differs by sex and race across the adult age span. American Journal of Clinical Nutrition, 78(1), 72-77.

Total body potassium differs by sex and race across the adult age span. / He, Qing; Heo, Moonseong; Heshka, Stanley; Wang, Jack; Pierson, Richard N.; Albu, Jeanine; Wang, Zimian; Heymsfield, Steven B.; Gallagher, Dympna.

In: American Journal of Clinical Nutrition, Vol. 78, No. 1, 07.2003, p. 72-77.

Research output: Contribution to journalArticle

He, Q, Heo, M, Heshka, S, Wang, J, Pierson, RN, Albu, J, Wang, Z, Heymsfield, SB & Gallagher, D 2003, 'Total body potassium differs by sex and race across the adult age span', American Journal of Clinical Nutrition, vol. 78, no. 1, pp. 72-77.
He Q, Heo M, Heshka S, Wang J, Pierson RN, Albu J et al. Total body potassium differs by sex and race across the adult age span. American Journal of Clinical Nutrition. 2003 Jul;78(1):72-77.
He, Qing ; Heo, Moonseong ; Heshka, Stanley ; Wang, Jack ; Pierson, Richard N. ; Albu, Jeanine ; Wang, Zimian ; Heymsfield, Steven B. ; Gallagher, Dympna. / Total body potassium differs by sex and race across the adult age span. In: American Journal of Clinical Nutrition. 2003 ; Vol. 78, No. 1. pp. 72-77.
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