Defining an international cut-off of two-legged countermovement jump power for sarcopenia and dysmobility syndrome

N. Hong, E. Siglinsky, D. Krueger, R. White, C. O. Kim, H. C. Kim, Y. Yeom, N. Binkley, Y. Rhee, B. Buehring

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Abstract

Summary: We aimed to establish jump power cut-offs for the composite outcome of either sarcopenia (EWGSOP2) or dysmobility syndrome using Asian and Caucasian cohorts. Estimated cut-offs were sex specific (women: < 19.0 W/kg; men: < 23.8 W/kg) but not ethnicity specific. Jump power has potential to be used in definitions of poor musculoskeletal health. Purpose: Weight-corrected jump power measured during a countermovement jump may be a useful tool to identify individuals with poor musculoskeletal health, but no cut-off values exist. We aimed to establish jump power cut-offs for detecting individuals with either sarcopenia or dysmobility syndrome. Methods: Age- and sex-matched community-dwelling older adults from two cohorts (University of Wisconsin-Madison [UW], Korean Urban Rural Elderly cohort [KURE], 1:2) were analyzed. Jump power cut-offs for the composite outcome of either sarcopenia defined by EWGSOP2 or dysmobility syndrome were determined. Results: The UW (n = 95) and KURE (n = 190) cohorts were similar in age (mean 75 years) and sex distribution (68% women). Jump power was similar between KURE and UW women (19.7 vs. 18.6 W/kg, p = 0.096) and slightly higher in KURE than UW in men (26.9 vs. 24.8 W/kg, p = 0.050). In UW and KURE, the prevalence of sarcopenia (7.4% in both), dysmobility syndrome (31.6% and 27.9%), or composite of either sarcopenia or dysmobility syndrome (32.6% and 28.4%) were comparable. Low jump power cut-offs for the composite outcome differed by sex but not by ethnicity (< 19.0 W/kg in women; < 23.8 W/kg in men). Low jump power was associated with elevated odds of sarcopenia (adjusted odds ratio [aOR] 4.07), dysmobility syndrome (aOR 4.32), or the composite of sarcopenia or dysmobility syndrome (aOR 4.67, p < 0.01 for all) independent of age, sex, height, and ethnicity. Conclusion: Sex-specific jump power cut-offs were found to detect the presence of either sarcopenia or dysmobility syndrome in older adults independent of Asian or Caucasian ethnicity.

Original languageEnglish
JournalOsteoporosis International
DOIs
Publication statusAccepted/In press - 2020

All Science Journal Classification (ASJC) codes

  • Endocrinology, Diabetes and Metabolism

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    Hong, N., Siglinsky, E., Krueger, D., White, R., Kim, C. O., Kim, H. C., Yeom, Y., Binkley, N., Rhee, Y., & Buehring, B. (Accepted/In press). Defining an international cut-off of two-legged countermovement jump power for sarcopenia and dysmobility syndrome. Osteoporosis International. https://doi.org/10.1007/s00198-020-05591-x