Skip to main content

Table 2 Clinical utility and practical considerations of functional measures in the ICU setting

From: Evaluating physical functioning in critical care: considerations for clinical practice and research

Outcome measure

Type of assessment#

Patient population with original development

Equipment required*

Scoring information (minimum to maximum score)

Time required to physically undertake testing

Training Rresources

ACIF [32]

Comprehensive

Acute neurological (including neurosurgery) [23]

Access to 5 stairs; walking marker (distance)

20 items, 4 subcategories (0–1.00)

12 min

No specified training package or video currently available, instructions and recording sheet available [23]

CPAx [33, 3436]

Comprehensive

General and trauma ICU [31]

Handgrip dynamometera

10 items, each scored 0–5 (0 –50)

2–10 min

Online 40–60 min free training (requires registration) at http://cpax.ocbmedia.com

CcFROM [37]

Comprehensive

General, neurosurgery and trauma ICU [33]

Stopwatch

9 items, each scored 0–7 (0–63)

10–30 min

Instructions and recording sheet available [33], no training package or video currently available

DEMMI [38]

Comprehensive

General hospitalized geriatric medical patients [24]

Chair with 45 cm seat height with arm rests; stopwatch; pen (DEMMI item 13); walking marker (distance)

15 items, 5 subcategories, each scored 0–2 (0–100)

10–30 min

Instructions and recording sheet available in supplementary [24] (no details specific to the ICU setting)

FSS-ICU [26, 31, 39, 4042]

Comprehensive

Medical ICU [37]

Walking marker (distance)

5 items, each scored 0–7 (0–35)

10–30 min

Detailed free instructions (registration required) at www.improvelto.com/, free training package including video available from primary author1

IMS [43, 26, 44, 45]

Simple

General ICU (medical, surgical, trauma) [28]

None

1 item, score based on highest classification level (11 options) (0–10)

<1 min

Instructions available [28]

MMS [46]

Simple

General ICU (medical, surgical, trauma) [39]

None

1 item, score based on highest classification level (7 options) (0–7)

<1 min

Instructions and recording sheet available [39]—further detailed instructions available from primary author2, no training package or video currently available

PFIT-s [26, 30, 47, 48]

Comprehensive

General ICU (medical, surgical) [43]

Stopwatch; Borg RPE sheet (optional)

4 items, individual items scored 0–3 (0–10)

10–15 min

Free training package, including video, available from primary author3

Perme Score [49, 50, 44]

Comprehensive

General ICU; cardiovascular ICU [46, 47]

None

15 items, individual items scored 0–3 (0–32)

15–60 min

No training package or video currently available. The scoring criteria and detailed instructions are available in the manuscript [46]

SOMS [51, 5254]

Simple

Surgical ICU [49]

None

1 item, score based on highest classification level (5 options) (0–4)

<1 min

No training package or video currently available, scoring criteria available in manuscript [49]

SPPB [26]

Comprehensive

Geriatric, non-hospitalized

Stopwatch; tape-measure (for 4-m course)

3 items, each item scored 0–4 (0–12)

5–10 min

Free training via: https://www.irp.nia.nih.gov/branches/leps/sppb/index.htm and https://www.youtube.com/watch?v=XgiuciJXPm4 (no details specific for ICU)

  1. *Additional equipment required beyond standard hospital bed, chair, and gait aids
  2. #Type of assessment was defined into two categories: 1) “simple” involving observation of patient’s current ability (time to complete: <5 min); and 2) “Comprehensive” providing greater understanding of the impairments in physical functioning (time to complete: 10–15 min)
  3. 1Dale Needham, School of Medicine, Johns Hopkins University. Contact email: dale.needham@jhmi.edu
  4. 2David Williams, Therapy Services, University Hospitals Birmingham NHS Foundation Trust. Contact email: david.mcwilliams@uhb.nhs.uk
  5. 3Linda Denehy, Physiotherapy Department, The University of Melbourne. Contact email: l.denehy@unimelb.edu.au
  6. a A table is able to be downloaded at the end of the eLearning module which provides the gender/age values for handgrip strength in order to work out percentage grip strength which is required to complete the CPAx
  7. ACIF Acute Care Index of Function, CPAx Chelsea Critical Care Physical Assessment Tool, CcFROM Critical Care Functional Rehabilitation Outcome Measure, DEMMI De Morton Mobility Index, FSS-ICU Functional Status Score for the ICU, ICU intensive care unit, IMS ICU mobility scale, MMS, Perme Perme ICU Mobility Score, PFIT-s Physical Function in intensive care test scored, RPE rating of perceived exertion, SOMS Surgical Optimal Mobility Scale, SPPB Short Physical Performance Battery, MMS Manchester Mobility Score