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Related Experiment Video

Updated: Sep 3, 2025

Sit-to-stand-and-walk from 120% Knee Height: A Novel Approach to Assess Dynamic Postural Control Independent of Lead-limb
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Novel Metrics for Assessing Mobility During Ground-Standing Transitions.

Riley C Sheehan1,2,3, Kelly A Ohm2,3,4, Jason M Wilken2,4,5

  • 1Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD 20817, USA.

Military Medicine
|July 23, 2022
PubMed
Summary
This summary is machine-generated.

New functional mobility tests, Stand-Prone-Standx2 (SPS2) and Stand-Kneel-Standx2 (SKS2), show excellent reliability for assessing ground-to-standing transitions in service members. These tests effectively identify mobility deficits in individuals with lower extremity injuries (LEI).

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Area of Science:

  • Biomechanics
  • Rehabilitation Science
  • Functional Mobility Assessment

Background:

  • Ground-to-standing transitions are crucial for many professions, yet current assessments are limited.
  • Novel functional mobility assessments, Stand-Prone-Standx2 (SPS2) and Stand-Kneel-Standx2 (SKS2), were developed.
  • The study aimed to validate these new measures in able-bodied (AB) and unilateral lower extremity injury (LEI) service members.

Purpose of the Study:

  • To determine the psychometric properties of the SPS2 and SKS2 tests.
  • To assess the reliability and responsiveness of these novel functional mobility measures.
  • To compare performance between able-bodied and injured service members.

Main Methods:

  • 57 AB and 31 LEI service members participated.
  • Test-retest reliability was assessed with a subset of participants.
  • Intraclass correlation coefficients (ICCs) were calculated for inter-rater and intersession reliability.

Main Results:

  • SPS2 and SKS2 demonstrated excellent inter-rater and intersession reliability (ICC > 0.8) in both AB and LEI groups.
  • The tests were responsive to LEI, with the LEI group showing significantly longer transition times.
  • Performance was significantly slower in the LEI group compared to the AB group.

Conclusions:

  • The SPS2 and SKS2 tests possess excellent reliability and responsiveness for assessing functional mobility.
  • These measures can effectively identify mobility deficits in individuals with lower extremity injuries.
  • The SPS2 and SKS2 are valuable tools for assessing ground-to-standing transitions in diverse populations, including those with LEI.