Timed Up & Go test

Abstract

The Timed Up & Go test (TUG) is a widely utilized, simple, and practical observational assessment designed to measure functional mobility and dynamic balance in older adults and clinical populations. It quantifies the time a patient requires to execute a sequence of actions: rising from a standard chair, walking a distance of 3 meters at a comfortable (energetically efficient) pace, turning around, walking back, and successfully sitting down again. The test allows the patient to use personal assistive devices, such as a walking aid or orthosis, but prohibits any physical assistance or verbal encouragement from the administrator. The TUG is an important modification of the original Get Up and Go test (GUG), incorporating the critical element of time measurement. It is sometimes referred to as the Timed Get Up and Go Test (TGUG or TGUGT). Both a standard version and a specific version tailored for patients with Parkinson’s disease are available for clinical use.

Keywords

Timed Up & Go test, TUG, functional mobility, dynamic balance, gait speed, fall risk, elderly assessment, Parkinson’s disease, Cerebrovascular Accident (CVA), lower extremity function, observational measure.

Authors

GUG: Mathias S, et al. (1986), TUG: Podsiadlo D, Richardson S (1991), Dutch version TUG: de Jong K, et al. (2000).

Purpose

The primary purpose of the Timed Up & Go test (TUG) is to quickly and reliably screen individuals for impaired functional mobility and an elevated risk of falling. The elapsed time provides a direct, objective measure of the patient’s ability to perform necessary daily activities that require a sequence of movements, including transitioning between sitting and standing, initiating gait, navigating a short distance, turning, and safely returning to a seated position.

Clinically, the TUG is invaluable as a quick screening tool to assess changes in mobility over time, monitor the effects of physical interventions or pharmacological treatments, and assist in determining the appropriate level of assistance or rehabilitation required. Specific cutoff times are often used to categorize individuals into low, moderate, or high fall risk groups, making it a cornerstone assessment in geriatric and neurological rehabilitation settings.

Construct

The TUG measures the construct of functional mobility, which encompasses the complex interaction of balance, gait speed, and physical strength necessary for independent movement within an environment. More specifically, it is a measure of dynamic balance—the ability to maintain postural control while moving. The test requires coordination across several domains:

• Transitional Movements: Rising from and returning to the chair (requiring lower extremity strength and postural control).
• Gait Performance: Speed, stability, and efficiency of walking 3 meters.
• Directional Change: Executing a safe and controlled 180-degree turn.

The total time taken reflects the combined efficiency of these underlying physical components, providing a holistic assessment of a patient’s overall mobility status related to activities of daily living.

Validity

The TUG possesses strong empirical support for its validity across numerous clinical populations. It exhibits excellent concurrent validity, showing high correlation with other established measures of mobility, balance, and gait speed, such as the Berg Balance Scale and the 10-meter walk test. Furthermore, the test demonstrates robust predictive validity, particularly in identifying older adults who are likely to experience recurrent falls. Research consistently shows that longer TUG times (typically exceeding 12 to 14 seconds) are highly predictive of increased fall risk and decreased independence.

The test is considered ecologically valid because the required movements closely mimic necessary activities of daily living (ADLs). Its ability to distinguish between individuals with high functional status and those with impaired mobility due to conditions like Cerebrovascular Accident (CVA) or Parkinson’s disease further solidifies its utility as a valid outcome measure in rehabilitation research and clinical practice.

Reliability

The Timed Up & Go test is highly regarded for its reliability. It demonstrates excellent inter-rater and intra-rater reliability, meaning that results are consistent regardless of who administers the test or when it is administered, provided standardized procedures are followed. Test-retest reliability is also high across different patient groups, including those with neurological disorders and general geriatric populations. The simplicity of the protocol, requiring only a stopwatch and standard furniture, minimizes measurement error and contributes significantly to its high practical reliability in clinical settings.

Factor Analysis

As the TUG yields a single total score (time in seconds), it is not typically subjected to complex factor analysis in the way multi-item questionnaires are. However, studies investigating the structure of functional mobility often find that TUG scores load heavily onto a primary factor representing general physical function, gait speed, and dynamic stability. While the test itself is unidimensional in scoring, it is understood to integrate several underlying latent factors (strength, balance, coordination) into one observable outcome measure of functional performance.

Instrument

Test Type: Observational/Performance-based measure of functional mobility.

Format: Clinical administration using standard equipment (chair, measuring tape, stopwatch).

Language Available: Original version developed in English. A validated Dutch version was published in 2000 (de Jong K, et al.). The test methodology is language-independent, relying on observation and timing.

Population Group: Adults and Older adults.

Age Group: Typically 18+ years, with primary clinical application in geriatric populations.

Population Details: Used across various clinical settings, including patients with neurological conditions such as Cerebrovascular Accident (CVA), Parkinson’s disease, and general frailty or mobility impairments affecting the lower extremity and nervous system.

Test Methodology: The patient sits in a chair, stands up upon command, walks 3 meters (10 feet) to a line or cone, turns, walks back, and sits down. The time from the instruction “Go” until the patient is fully seated is recorded. The patient is instructed to walk at a comfortable, safe, and efficient pace.

Keywords

Timed Get Up and Go Test (TGUGT), gait assessment, fall risk prediction, physical therapy, geriatric assessment, dynamic stability, mobility impairment, lower extremity function, neurological disorders.

Authors

Author ORCID Identifier: N/A (Information not provided in source data).

Affiliation Email addresses: N/A (Information not provided in source data).

Correspondence Address: N/A (Information not provided in source data).

Permissions & Fee and Test Year

The TUG is a widely used performance measure published in 1991 by Podsiadlo and Richardson. As a standard clinical test utilizing readily available equipment, it generally does not require a fee or formal permission for clinical or academic use, though proper citation is required for research. The original publication detailing the test methodology is essential for adherence to standardization.

The original Get Up and Go test (GUG) was introduced by Mathias S, et al. in 1986.

The original PDF documents related to the TUG, including the instruction forms, instruments, and manuals, can be accessed via the following links:

• The original PDF for the TUG Instruction Form can be downloaded here: TUG-form.pdf
• The original PDF for the Parkinson-specific Instruction Form can be downloaded here: TUG-form-ZvP-1.pdf
• The original PDF for the TUG Measurement Instrument can be downloaded here: TUG-meetinstr.pdf
• The original PDF for the Parkinson-specific Measurement Instrument can be downloaded here: TUG-meetinstr-ZvP-1.pdf
• The original PDF for the TUG Manual (HOOGSTRAAT) can be downloaded here: TUG-handl-HOOGSTRAAT.pdf

Reference’s

The key references associated with the development and standardization of the TUG test are:

1. Mathias S, Nayak US, Isaacs B. Balance in elderly patients: the "get-up and go" test. Arch Phys Med Rehabil. 1986;67(6):387-389. (Original GUG test).
2. Podsiadlo D, Richardson S. The Timed "Up & Go": a test of basic functional mobility for frail elderly persons. J Am Geriatr Soc. 1991;39(2):142-148. (TUG introduction).
3. de Jong K, et al. (2000). Standardization and validation of the Dutch version of the TUG test. (Details of the Dutch version).

Items of the Timed Up & Go test

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way. (Note: Since the original source provided the steps in the description in Dutch, these steps are translated into the standard operational instructions in English for clarity, as the required output language is English. These steps define the operational items of the test.)

1. The patient sits properly in a standard armchair, with their back against the chair.
2. Upon the command "Go," the timing begins. The patient must stand up from the chair without using the armrests if possible (though use is generally permitted if necessary for safety).
3. The patient walks 3 meters (10 feet) to a marked line or cone.
4. The patient turns 180 degrees.
5. The patient walks back toward the chair.
6. The patient sits down again, fully seated with their back resting against the chair.
7. Timing stops the moment the patient is fully seated.