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Using a Real-Time Locating System to Measure Walking Activity Associated with Wandering Behaviors Among Institutionalized Older Adults
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Relationship between the 25-question Geriatric Locomotive Function Scale and physical function in the elderly people.

Saki Inanaga1, Masaichi Hasegawa1, Mizuho Kosuge1

  • 1Department of Orthopedic Surgery, Faculty of Medicine, Kyorin University, 6-20-2, Shinkawa, Mitaka, Tokyo, 181-8611, Japan.

Journal of Bone and Mineral Metabolism
|April 8, 2023
PubMed
Summary

The Geriatric Locomotive Function Scale (GLFS-25) can screen for severe locomotive syndrome (LS), but physical function tests are needed for precise staging. Some GLFS-25 subcategories correlate with mobility, while others do not.

Keywords:
25-question Geriatric Locomotive Function Scale (GLFS-25)Locomotive syndromePhysical function

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Area of Science:

  • Geriatric medicine
  • Mobility assessment
  • Functional decline

Background:

  • Locomotive syndrome (LS) is characterized by reduced mobility in older adults.
  • LS staging is crucial for intervention and can be assessed using the stand-up test, two-step test, and the 25-question Geriatric Locomotive Function Scale (GLFS-25).

Purpose of the Study:

  • To determine if the GLFS-25 reliably stages locomotive syndrome.
  • To clarify the correlation between the GLFS-25's six subcategories and specific physical functions.

Main Methods:

  • Administered the GLFS-25 to 103 participants over 65 years old.
  • Evaluated physical functions including stand-up test, two-step test, handgrip strength, five-times sit-to-stand, 4m walk, and single leg standing duration.
  • Analyzed correlations between LS stage, GLFS-25 scores, and physical functions with GLFS-25 subcategories.

Main Results:

  • A discrepancy exists between LS stages determined by GLFS-25 alone versus comprehensive testing.
  • Receiver operating characteristic (ROC) analysis identified cut-off values for LS stages (6 for 0/1, 14 for 1/2) with AUCs of 0.78 and 0.81.
  • Movement difficulty, usual care, ADL, and social activities subcategories correlated with mobility; body pain and cognitive subcategories did not.

Conclusions:

  • The GLFS-25 is effective for screening severe locomotive syndrome.
  • Precise LS staging requires evaluation of actual physical function, especially for individuals with low GLFS-25 scores.
  • Body pain and cognitive subcategories of the GLFS-25 are independent of other domains related to mobility.