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JFSF Vol 10, No 1, March 2025, p.8-17

doi: 10.22540/JFSF-10-008

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Original Article

The Modified-30-Seconds-Chair-Stand-Test: A Practical and Reproducible Tool to Assess Muscle Strength in Acutely Ill Hospitalized Geriatric Patients

Isis Ensink1, Martijn J.A. Rothbauer1, Shannon Röhlinger2, Audrey H.H. Merry3, Walther M.W.H. Sipers1

  1. Department of Geriatric Medicine, Zuyderland Medical Center, Sittard-Geleen, The Netherlands
  2. Department of Physical Therapy, Zuyderland Medical Center, Sittard-Geleen, The Netherlands
  3. Department of Epidemiology, Zuyderland Medical Center, Sittard-Geleen, The Netherlands

Keywords: Chair Stand Test, Muscle Strength, Handgrip Strength, Physical Performance, Sarcopenia

Abstract

Objectives: Acutely ill hospitalized geriatric patients with sarcopenia have a poor clinical outcome. The European Working Group on Sarcopenia in Older People-2 (EWGSOP-2) recommends measuring handgrip strength (HGS) or the 5-times-repeated-Chair-Stand-Test (5t-CST) to assess muscle strength. The modified-thirty-seconds-Chair-Stand-Test (m-30s-CST) is expected to be more feasible than the 5t-CST and probably a better proxy for physical function compared to HGS. The aim of the study is to test the feasibility and reliability of the m-30s-CST in these patients. Methods: 92 patients (aged 84±6 y, mean GFI score of 6.1± 2.9, 53.5% female) participated. The m-30s-CST was performed at 3 different occasions. Feasibility was measured at admission and test-retest reliability at the day before and of discharge. Additionally Short Physical Performance Battery (SPPB), ADL-Barthel-Index (ADL-BI) and HGS were assessed. Results: The m-30s-CST is a significant more feasible test compared to the 5t-CST (n=92; 76.1% versus 20.1%; P<0.001), with a intraclass correlation coefficient (ICC) of 0.954 (n=59; CI-95%:0.921-0.973; P<0.001). The m-30s-CST has compared to HGS a significant better correlation with the ADL-BI and with the SPPB. Conclusion: The m-30s-CST is a feasible and reliable method to assess muscle strength and is compared to HGS a better proxy for physical performance in geriatric patients.
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