Handgrip Strength Associated With Diet Quality in Urban African American and White Adults in the U.s.
Year: 2017
Type: conference-abstract
Abstract: Muscle mass loss and progressive declines in strength, associated with loss of physical functioning, increase with age. Diet quality can affect muscle strength and performance. Handgrip strength is an indicator of total-body muscle strength and physical performance. This study investigated the association between diet quality and handgrip strength in 2140 African American and White adults examined in baseline Healthy Aging in Neighborhoods of Diversity across the Life Span study. Diet quality was measured by Mean Adequacy Ratio (MAR) of 17 micronutrients from two dietary recalls. Handgrip strength was assessed using the Jamar Hydraulic Hand Dynamometer. Mean MAR (±SE) scores were 73.93 ± 0.31 and mean handgrip strength was 34.68 ± 0.29. When compared across tertiles, handgrip strength was significantly associated with MAR; with each tertile of MAR, handgrip strength significantly improved; (1st tertile-32.2±.47, 2nd tertile-34.5±.50, 3rd tertile-36.8±.53).Multiple regression models were used to explore the cross-sectional relationship of MAR to handgrip strength, adjusting for potential confounders. Model one included the main effects (race, age, sex, and socioeconomic status (SES)), model two included main effects and MAR as a continuous variable. Model three included main effects, MAR and race x SES interaction. Being African American (β= 2.1; p<0.001), younger (β= -.30; p<0.001), male (β= 16.49; p<0.001), and higher MAR scores (β= .06; p<0.001) were associated with greater handgrip strength in Model 3. SES was significantly associated with handgrip strength in model 1; however, in model 3, SES and race x SES interactions were not significant. Better diet quality is important in maintaining handgrip strength.
Source: Innovation in Aging
Institutions: University of Delaware, National Institute on Aging
Language: English
Subfield: Physiology
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $3,977
OpenAlex ID: W2724436150