Leg Muscle Mass and Foot Symptoms, Structure, and Function: The Johnston County Osteoarthritis Project

Yvonne M. Golightly, Alyssa B. Dufour, Marian T. Hannan, Howard J. Hillstrom, Patricia P. Katz, Joanne M. Jordan

Research output: Contribution to journalArticle

Abstract

Background. Loss of muscle mass occurs with aging and in lower limbs it may be accelerated by foot problems. In this cross-sectional analysis, we evaluated the relationship of leg muscle mass to foot symptoms (presence or absence of pain, aching, or stiffness), structure while standing (high arch or low arch), and function while walking (pronated or supinated) in a community-based study of Caucasian and African American men and women who were 50-95 years old. Methods. In the Johnston County Osteoarthritis Project, leg muscle mass was measured with whole body dual-energy x-ray absorptiometry, and plantar foot pressure data, using predetermined values, were used to classify foot structure and function. Sex-specific crude and adjusted (age, body mass index, and race) linear regression models examined associations of leg muscle mass index (Leg muscle mass [kg] / Height [m]2) with foot symptoms, structure, and function. Results. Complete data were available for 1,037 participants (mean age 68 years, mean body mass index 31kg/m2, 68% women, 29% African American). In women, pronated foot function was associated with lower leg muscle mass in crude (p =. 02), but not adjusted (p =. 22), models. A low arch was associated with a higher leg muscle mass in adjusted models for both men and women (p <. 01). Conclusions. Leg muscle mass was associated with foot structure in our biracial sample, whereas relations between leg muscle mass and foot function were attenuated by age, body mass index, and race. Future longitudinal analyses are needed to explain the temporal relationship between these conditions and how they relate to other aspects of impairment and physical function.

LanguageEnglish (US)
Pages385-390
Number of pages6
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume71
Issue number3
DOIs
StatePublished - Mar 1 2016

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Osteoarthritis
Foot
Leg
Muscles
Body Mass Index
African Americans
Linear Models
Walking
Lower Extremity
Cross-Sectional Studies
X-Rays
Pressure
Pain

Keywords

  • Cohort study
  • Foot
  • Gait
  • Muscle
  • Pain

ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology

Cite this

Leg Muscle Mass and Foot Symptoms, Structure, and Function : The Johnston County Osteoarthritis Project. / Golightly, Yvonne M.; Dufour, Alyssa B.; Hannan, Marian T.; Hillstrom, Howard J.; Katz, Patricia P.; Jordan, Joanne M.

In: Journals of Gerontology - Series A Biological Sciences and Medical Sciences, Vol. 71, No. 3, 01.03.2016, p. 385-390.

Research output: Contribution to journalArticle

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