Validation of 20-Meter Corridor for the 6-Minute Walk Test in Men on Liver Transplantation Waiting List

Veloso-Guedes, Cristina Aparecida; Rosalen, Stela Talazzo; Thobias, C.M.; Andreotti, R.M.; Galhardo, Fernanda Diório Masi; Silva, A.M. Oliveira da; Araújo, Olímpia Ferreira Galvão de; Boin, I.F.S.F.

doi:10.1016/j.transproceed.2011.03.057

Cited by 22 publications

(8 citation statements)

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“…Some of the present study’s findings have implications for assessing children’s movement patterns in both habitual and health contexts. As highlighted by McNarry et al ( 2017 ), it is important to account for the number of turns during a clinical six-minute walking test (6MWT), designed to measure both adults’ (Veloso-Guedes et al 2011 ) and children’s (Geiger et al 2007 ) functional exercise capacity. McNarry et al ( 2017 ) highlight that the 6MWT varies due to limited space and resources, which consequently results in distances ranging from 20 to 50 m being used (Lipkin et al 1986 ; Troosters et al 1999 ), subsequently altering the frequency of turns completed from as much as 12 to 32 turns (Chetta et al 2006 ).…”

Section: Discussionmentioning

confidence: 99%

Energy expenditure associated with walking speed and angle of turn in children

et al. 2018

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PurposeRecent studies have suggested that turning is power intensive. Given the sporadic and irregular movement patterns of children, such findings have important implications for the assessment of true energy expenditure associated with habitual physical activity. The purpose of this study was to investigate the influence of walking speed and angle, and their interaction, on the energy expenditure of healthy children.Methods20 children (10.1 ± 0.5 years; 10 boys) participated in the study. On two separate days, participants completed a turning protocol involving 3-min bouts of walking at one of the 16 speed (2.5, 3.5, 4.5, and 5.5 km h− 1) and angle (0°, 45°, 90°, and 180°) combinations, interspersed by 3 min seated rest. The movement involved 5 m straight walking interspaced with prescribed turns with speed dictated by a digital, auditory metronome. Breath-by-breath gas exchange was measured, in addition to tri-axial acceleration and magnetic field intensity recorded at 100 Hz.ResultsMixed models revealed a significant main effect for speed (p < 0.006) and angle (p < 0.006), with no significant interaction between speed and angle (p > 0.006). Significant differences to straight-line walking energy expenditure within speed were established for 3.5 and 5.5 km h− 1 for 180° turns (~ 13% and ~ 30% increase, respectively).ConclusionThese findings highlight the importance of accounting for the magnitude and frequency of turns completed when estimating children’s habitual physical activity and have significant implications for the assessment of daily energy expenditure.

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Section: Discussionmentioning

confidence: 99%

Energy expenditure associated with walking speed and angle of turn in children

et al. 2018

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“…5 However, the use of the shorter track caused a clinically relevant reduction in 6MWT performance. In children, 6 healthy older adults, 7 and individuals with hepatic cirrhosis 8 and stroke, 9 the performance on the 6MWT conducted on a 20-meter track (6MWT 20 ) resulted in a difference of less than 10%. Therefore, the 6MWT 20 may be an alternative, easier to conduct clinically, for patients with COPD.…”

Section: Introductionmentioning

confidence: 99%

Performance difference on the six-minute walk test on tracks of 20 and 30 meters for patients with chronic obstructive pulmonary disease: validity and reliability

Klein

Gulart

Venâncio

et al. 2021

Brazilian Journal of Physical Therapy

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Background: Functional capacity assessment is important in patients with chronic obstructive pulmonary disease (COPD). It can be performed by the six-minute walk test (6MWT) on a 30meter track. However, such space is not always available in clinical settings. Objectives: To compare the performance between the 6MWT on a 30-(6MWT 30 ) and 20-meter (6MWT 20 ) track; to evaluate the validity and reliability of the 6MWT 30 and the 6MWT 20 ; and to determine for which patients track length has the greatest impact on performance. Methods: Patients with COPD randomly performed two 6MWT 30 and two 6MWT 20 on two different days and were also assessed using the COPD Assessment Test (CAT) and modified Medical Research Council (mMRC) scale. Results: Thirty patients (23 men; mean ± standard deviation FEV 1 %pred: 45.6 ± 12.1) participated in the study. They walked a greater distance on the 6MWT 30 than on the 6MWT 20 [mean difference: 22.1 m (95% CI: 12, 32 m)]. The longer the 6MWT 30 distance, the greater the difference between the 2 tests (r = 0.51; p = 0.004). The 6MWT 20 showed high reliability [ICC: 0.96 (95% CI: 0.77, 0.99)] and the results were associated with the distance walked on the 6MWT 30 (r = 0.86), CAT (r = −0.53), and mMRC (r = −0.62). Patients who walked ≥430 m in the 6MWT 30 presented a difference between the tests greater than those who walked <430 m (34.5 ± 23.3 m vs. 12.6 ± 24.1 m; respectively; p = 0.01).

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“…Veloso-Guedes et al [ 9 ] compared the walk test results in a hallway with 20 and 30 meters in patients on the list liver transplantation, concluding that an 20 meters runner can be used safely and effectively as an alternative to 30 meters for 6MWD. In addition, Carey et al.…”

Section: Introductionmentioning

confidence: 99%

Inspiratory muscle training and functional capacity in patients submitted to cardiac surgery

Cordeiro¹,

Melo²,

Neves³

et al. 2016

Brazilian Journal of Cardiovascular Surgery

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IntroductionCardiac surgery is a highly complex procedure which generates worsening of lung function and decreased inspiratory muscle strength. The inspiratory muscle training becomes effective for muscle strengthening and can improve functional capacity.ObjectiveTo investigate the effect of inspiratory muscle training on functional capacity submaximal and inspiratory muscle strength in patients undergoing cardiac surgery.MethodsThis is a clinical randomized controlled trial with patients undergoing cardiac surgery at Instituto Nobre de Cardiologia. Patients were divided into two groups: control group and training. Preoperatively, were assessed the maximum inspiratory pressure and the distance covered in a 6-minute walk test. From the third postoperative day, the control group was managed according to the routine of the unit while the training group underwent daily protocol of respiratory muscle training until the day of discharge.Results50 patients, 27 (54%) males were included, with a mean age of 56.7±13.9 years. After the analysis, the training group had significant increase in maximum inspiratory pressure (69.5±14.9 vs. 83.1±19.1 cmH2O, P=0.0073) and 6-minute walk test (422.4±102.8 vs. 502.4±112.8 m, P=0.0031).ConclusionWe conclude that inspiratory muscle training was effective in improving functional capacity submaximal and inspiratory muscle strength in this sample of patients undergoing cardiac surgery.

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Validation of 20-Meter Corridor for the 6-Minute Walk Test in Men on Liver Transplantation Waiting List

Abstract: We concluded that a 20 m corridor can be used safely and effectively as an alternative to 30 m for the 6MWT for male patients with cirrhosis on the liver transplantation waiting list.

Cited by 22 publications

References 11 publications

Energy expenditure associated with walking speed and angle of turn in children

Energy expenditure associated with walking speed and angle of turn in children

Performance difference on the six-minute walk test on tracks of 20 and 30 meters for patients with chronic obstructive pulmonary disease: validity and reliability

Inspiratory muscle training and functional capacity in patients submitted to cardiac surgery

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