2 Minute Walk Test: Difference between revisions
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== Method of Use == | == Method of Use == | ||
The 2MWT requires two practice walks before it is measured due to a training effect<ref name=":0" /><ref name=":1" /><ref name=":3" />. | The 2MWT requires two practice walks before it is measured due to a training effect<ref name=":0" /><ref name=":1" /><ref name=":3" />. | ||
== Evidence == | == Evidence == | ||
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=== Validity === | === Validity === | ||
The 2MWT shows good construct validity with similar measures. The 2MWT correlates highly with the six and 12 minute walk tests indicating they are similar measures of exercise tolerance<ref name=":0" /><ref name=":2">Scalzitti DA, Harwood KJ, Maring JR, Leach SJ, Ruckert EA, Costello E. [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107337/ Validation of the 2-Minute Walk Test with the 6-Minute Walk Test and other functional measures in persons with Multiple Sclerosis]. Int J MS Care. 2018; 20(4): 158–163. Accessed 19 February 2019. | The 2MWT shows good construct validity with similar walking measures. The 2MWT correlates highly with the six and 12 minute walk tests indicating they are similar measures of [[gait]] and [[Exercise Physiology|exercise tolerance]] in population-based samples<ref name=":3" /> and those with respiratory disease<ref name=":0" /> or [[MS Multiple Sclerosis|Multiple Sclerosis]]<ref name=":2">Scalzitti DA, Harwood KJ, Maring JR, Leach SJ, Ruckert EA, Costello E. [https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6107337/ Validation of the 2-Minute Walk Test with the 6-Minute Walk Test and other functional measures in persons with Multiple Sclerosis]. Int J MS Care. 2018; 20(4): 158–163. Accessed 19 February 2019. | ||
</ref>. | </ref>. | ||
=== Responsiveness === | === Responsiveness === | ||
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=== Miscellaneous<span style="font-size: 20px; font-weight: normal;" class="Apple-style-span"></span> === | === Miscellaneous<span style="font-size: 20px; font-weight: normal;" class="Apple-style-span"></span> === | ||
Age and gender explain 51% of variance in the distance walked in the 2MWT<ref name=":1" />, i.e.older age and female gender are associated with shorter distances walker. Other studies have found some correlation between DW and height, weight, age and gender<ref name=":3" />. | Age and gender explain 51% of variance in the distance walked in the 2MWT<ref name=":1" />, i.e. older age and female gender are associated with shorter distances walker. Other studies have found some correlation between DW and height, weight, age and gender<ref name=":3" />. | ||
One study<ref name=":1" /> has shown that subjects reached 70% of their maximum heart rate which was comparable with similar testing of the 6MWT. Authors hypothesised that this could suggest that a steady state of exertion is reached after only a short period of walking, as both the two and six minute walk tests are self-paced. So the 2MWT is a useful measure instead of the 6MWT if it is not practical to perform. | One study<ref name=":1" /> has shown that subjects reached 70% of their maximum heart rate which was comparable with similar testing of the 6MWT. Authors hypothesised that this could suggest that a steady state of exertion is reached after only a short period of walking, as both the two and six minute walk tests are self-paced. So the 2MWT is a useful measure instead of the 6MWT if it is not practical to perform. | ||
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Women: 2MWTpredicted = 257.177 - (0.723 x age) - (1.688 x BMI) | Women: 2MWTpredicted = 257.177 - (0.723 x age) - (1.688 x BMI) | ||
<nowiki>*</nowiki>where BMI is weight (in kilogram) divided by height (in | <nowiki>*</nowiki>where BMI is Body Mass Index where weight (in kilogram) divided by height (in metres) squared | ||
== Links == | == Links == | ||
Revision as of 07:38, 23 February 2019
Original Editor - Your name will be added here if you created the original content for this page.
Top Contributors - Lauren Lopez, Kim Jackson, Jeremy Bryan, Ewa Jaraczewska, Rucha Gadgil, Lucinda hampton, George Prudden, Ammar Suhail, Yvonne Yap and Oyemi Sillo
Objective[edit | edit source]
The Two/2 Minute Walk Test (2MWT) is a measure of self-paced walking ability and functional capacity[1], particularly for those who cannot manage the longer Six Minute Walk Test or 12 Minute Walk Test.
Intended Population[edit | edit source]
The 2MWT has been used in a variety of health conditions including COPD, lower limb amputation, neuromuscular disease, cardiac disease and the elderly[2].
Method of Use[edit | edit source]
The 2MWT requires two practice walks before it is measured due to a training effect[1][2][3].
Evidence[edit | edit source]
Reliability[edit | edit source]
Studies have shown that the 2MWT is consistently reproducible[1][2][3].
Validity[edit | edit source]
The 2MWT shows good construct validity with similar walking measures. The 2MWT correlates highly with the six and 12 minute walk tests indicating they are similar measures of gait and exercise tolerance in population-based samples[3] and those with respiratory disease[1] or Multiple Sclerosis[4].
Responsiveness[edit | edit source]
Research shows the 2MWT does not discriminate as well as the longer six and 12 minute walk tests in subjects with respiratory disease[1].
One study reported a minimum detectable change for the distance walked (DW) in the 2MWT was 42.5m[3].
In subjects with COPD undergoing pulmonary rehabilitation, a clinically meaningful change of 5.5m in DW has been reported[5].
Miscellaneous[edit | edit source]
Age and gender explain 51% of variance in the distance walked in the 2MWT[2], i.e. older age and female gender are associated with shorter distances walker. Other studies have found some correlation between DW and height, weight, age and gender[3].
One study[2] has shown that subjects reached 70% of their maximum heart rate which was comparable with similar testing of the 6MWT. Authors hypothesised that this could suggest that a steady state of exertion is reached after only a short period of walking, as both the two and six minute walk tests are self-paced. So the 2MWT is a useful measure instead of the 6MWT if it is not practical to perform.
Normative Data[edit | edit source]
One study[2] has described, with evidence, an equation to predict the DW, regardless of health condition. It takes into account age and gender. The equation is 2MWTpredicted = 252.583 - (1.165 x age) + (19.987 x gender*), where * is male= 1 and female= 0[2].
Another study[3] used the following equations for men and women, respectively, with normative values available here.
Men: 2MWTpredicted = 279.096 - (0.998 x age) - (1.426 x BMI)
Women: 2MWTpredicted = 257.177 - (0.723 x age) - (1.688 x BMI)
*where BMI is Body Mass Index where weight (in kilogram) divided by height (in metres) squared
Links[edit | edit source]
References[edit | edit source]
- ↑ 1.0 1.1 1.2 1.3 1.4 Butland RJ, Pang J, Gross ER, Woodcock AA, Geddes DM. Two-, six-, and 12-minute walking tests in respiratory disease. Br Med J (Clin Res Ed). 1982. 29; 284(6329): 1607–1608. Accessed 19 February 2019.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 Selman, JPR, de Camargi AA, Santos J, Lanza FC, Dal Corso S. Reference Equation for the 2-Minute Walk Test in Adults and the Elderly. Respir Care. 2014; 59 (4): 525-530. Accessed 19 February 2019.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Bohannon RW, Wang Y, Gershon RC. Two-Minute Walk Test performance by adults 18 to 85 years: normative values, reliability, and responsiveness. Arch Phys Med Rehab. 2015; 96:472-7. Accessed 19 February 2019.
- ↑ Scalzitti DA, Harwood KJ, Maring JR, Leach SJ, Ruckert EA, Costello E. Validation of the 2-Minute Walk Test with the 6-Minute Walk Test and other functional measures in persons with Multiple Sclerosis. Int J MS Care. 2018; 20(4): 158–163. Accessed 19 February 2019.
- ↑ Johnston KN, Potter AJ, Phillips AC. Minimal important difference and responsiveness of 2-minute walk test performance in people with COPD undergoing pulmonary rehabilitation. Int J Chron Obstruct Pulmon Dis. 2017:12 2849–2857. Accessed 19 February 2019.
