Performance-Oriented Mobility Assessment (Tinetti)

Abstract

The Performance-Oriented Mobility Assessment (POMA), often referred to as the Tinetti Test, is a widely utilized clinical tool designed to evaluate balance and gait performance in older adults. The scale is bifurcated into two distinct sections: the POMA-Balance (POMA-B) and the POMA-Gait (POMA-G) or POMA-Mobility (POMA-M). The comprehensive nature of the POMA allows clinicians to objectively score various aspects of mobility, providing a crucial quantitative measure for assessing fall risk and functional limitations.

The POMA-B component focuses on static and dynamic balance, assessing the individual’s ability to maintain equilibrium during standardized maneuvers, while the POMA-G evaluates the qualitative aspects of functional ambulation, including stride characteristics and trunk stability during walking.

Keywords

Performance-Oriented Mobility Assessment, POMA, Tinetti Test, Balance, Gait, Older Adults, Fall Risk Assessment, Mobility, Functional Performance.

Authors

Tinetti ME (1986).

Purpose

The primary purpose of the Performance-Oriented Mobility Assessment (POMA) is to systematically evaluate physical function related to mobility and stability in vulnerable populations, particularly older adults. By quantifying performance across specific balance and gait tasks, the POMA serves as a highly effective screening instrument to identify individuals at elevated risk of falling.

The scale provides a standardized method for clinicians, including physical therapists and geriatric specialists, to track changes in a patient’s functional status over time, assess the effectiveness of interventions, and guide rehabilitation planning aimed at improving safety and independence.

Construct

The POMA measures the construct of functional mobility, which encompasses both static and dynamic balance control and the efficiency of functional gait. It is a performance-based measure, meaning the assessment relies on observable behaviors and objective scoring rather than subjective patient reporting.

The assessment breaks down mobility into fundamental sub-components. The balance component measures the ability to maintain the center of gravity within the base of support during transitional movements (e.g., sit-to-stand) and while subjected to minor perturbations. The gait component focuses on the coordination, symmetry, and stability required for safe ambulation in a functional setting.

Validity

The POMA demonstrates strong criterion validity, particularly against measures of actual fall incidence. Numerous studies confirm its predictive accuracy in identifying older adults who will experience falls within a subsequent time period. The cutoff scores derived from the POMA total score (typically < 19 indicating high risk) are widely accepted clinical benchmarks.

Furthermore, the scale exhibits good construct validity, showing expected correlations with other established measures of physical function, such as the Berg Balance Scale (BBS) and the Timed Up and Go (TUG) test. Its clinical utility is supported by its sensitivity to changes in functional status following medical or rehabilitative interventions.

Reliability

The POMA possesses high levels of inter-rater reliability and intra-rater reliability, especially when administered by trained clinicians. This strong reliability ensures that the scores are consistent across different assessors and consistent over repeated measurements by the same assessor, provided the patient’s underlying condition remains stable.

The standardized scoring criteria and clear definitions for each item contribute significantly to its reliability. Research has consistently reported high Kappa coefficients and Intraclass Correlation Coefficients (ICCs) for both the balance and gait subscales, confirming its robustness as a clinical and research tool.

Factor Analysis

Factor analysis studies generally support the conceptual two-factor structure originally proposed by Tinetti ME. The analysis typically confirms the separation of the scale into distinct, yet related, factors: the Balance Factor (POMA-B) and the Gait Factor (POMA-G).

While some minor variations exist depending on the population sample studied, the strong empirical evidence for these two primary factors validates the scale’s design as a comprehensive assessment of both static postural control and dynamic locomotor function. These factors account for the majority of the variance in total POMA scores.

Instrument

Test Type: Performance-based assessment

Format: Observational rating scale scored by a clinician

Language Available: English (Original), widely translated into various languages including Dutch, Spanish, German, and others.

Population Group: Older Adults (Ouderen)

Age Group: Typically 65 years and older, though applicable to younger individuals with mobility impairments.

Population Details: Used in diverse settings including acute care, rehabilitation facilities, long-term care, and community health programs for individuals experiencing instability or a history of falls.

Test Methodology: The clinician observes the patient performing a set sequence of standardized movements. Each item is scored typically on a 0–2 scale, resulting in a maximum possible score of 16 for the balance component and 12 for the gait component, yielding a total POMA score of 28. Higher scores indicate better mobility and lower fall risk.

Keywords

Geriatrics, Physical Therapy, Mobility Assessment, Functional Status, Performance Measure, Balance Assessment, Gait Analysis, Fall Prevention, Clinical Score.

Authors

Author ORCID Identifier: Not provided in source (Typically requires external lookup, omitted for strict adherence to source data limitations unless known).

Affiliation Email addresses: Not provided in source.

Correspondence Address: Not provided in source.

Permissions & Fee and Test Year

The POMA is a widely published and non-proprietary clinical instrument, generally available for use without specific licensing fees for clinical or academic purposes. The original scale was published in 1986 by Mary E. Tinetti.

The original Explanation Form (Toelichtingsformulier) PDF can be downloaded here: POMA-form.pdf

The original Measurement Instrument (Meetinstrument) PDF can be downloaded here: POMA-meetinstr-1.pdf

Reference’s

Tinetti, M. E. (1986). Performance-oriented assessment of mobility problems in elderly patients. Journal of the American Geriatrics Society, 34(2), 119–126.

Items of the Performance-Oriented Mobility Assessment (volgens Tinetti)

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

The POMA is divided into two sections:

POMA-Balance (POMA-B)

The balance component evaluates the following aspects:

• balans in zit (Balance while sitting)
• balans in stand (Balance while standing)
• opstaan (Rising from a chair)
• met evenwichtsverstorende prikkels (Response to perturbing stimuli, e.g., nudge)
• met gesloten ogen (Balance with eyes closed)
• ronddraaien (Turning 360 degrees)
• gaan zitten (Sitting down)

POMA-Gait (POMA-G or POMA-M)

The mobility evaluation component provides a qualitative judgment regarding walking and includes the following points:

• inzetten van gang (Initiation of gait)
• paslengte en pashoogte (rechter en linker voet) (Step length and step height, right and left foot)
• de passymmetrie en continuïteit (Step symmetry and continuity)
• afwijkende gang (Path deviation)
• romp (Trunk stability)
• de voetafstand (Stance width)