Reproducibility of the 6-Minute-Walk Test in Older Women

2001 ◽  
Vol 9 (2) ◽  
pp. 184-193 ◽  
Author(s):  
Claire Peel ◽  
Diane Ballard

The primary purpose of this study was to determine the reproducibility of the 6-min-walk test (6MWT) in older women. A secondary purpose was to document heart rate (HR), blood pressure (BP), and ratings of perceived exertion (RPE) in response to the 6MWT. Twenty-eight women with an average age of 80.0 years (±5.2) participated. They performed 2 trials of the 6MWT on 3 separate days, for a total of 6 trials. Heart rate, BP, RPE, and the total distance walked were recorded for each trial. The results indicated a significant increase from Trial 1 to Trial 2, with no differences between Trials 2–6, F(5, 131) = 7.02, p = .000. HR and BP were consistent across the 6 trials, and RPE was higher for the second trial on the second day of testing, F(5, 131) = 2.72, p = .023. The intraclass correlation coefficient for distance walked was .94. After the initial trial, performance on the 6MWT appears to be stable in older women.

2000 ◽  
Vol 80 (1) ◽  
pp. 8-16 ◽  
Author(s):  
Mary B King ◽  
James O Judge ◽  
Robert Whipple ◽  
Leslie Wolfson

Abstract Background and Purpose. The reliability and responsiveness of 2 physical performance measures were assessed in this nonrandomized, controlled pilot exercise intervention. Subjects. Forty-five older individuals with mobility impairment (mean age=77.9 years, SD=5.9, range=70–92) were sequentially assigned to participate in an exercise program (intervention group) or to a control group. Methods. The intervention group performed exercise 3 times a week for 12 weeks that targeted muscle force, endurance, balance, and flexibility. Outcome measures were the 8-item Physical Performance Test (PPT-8) and the 6-minute walk test. Test-retest reliability and responsiveness indexes were determined for both tests; interrater reliability was measured for the PPT-8. Results. The intraclass correlation coefficient for interrater reliability for the PPT-8 was .96. Intraclass correlation coefficients for test-retest reliability were .88 for the PPT-8 and .93 for the 6-minute walk test. The intervention group improved 2.4 points and the control group improved 0.7 point on the PPT-8, as compared with baseline measurements. There was no change in 6-minute walk test distance in the intervention group when compared with the control group. The responsiveness index was .8 for the PPT-8 and .6 for the 6-minute walk test. Conclusion and Discussion. Measurements for both the PPT-8 and the 6-minute walk test appeared to be highly reliable. The PPT-8 was more responsive than the 6-minute walk test to change in performance expected with this functional training intervention.


2021 ◽  
Vol 28 (3) ◽  
pp. 267-275
Author(s):  
Mariana Kalazich-Rosales ◽  
Camila Mautner-Molina ◽  
Cecilia König-Araya ◽  
Francisca Fuentes-Leal ◽  
Carlos Cárcamo-Ibaceta ◽  
...  

ABSTRACT The six-minute walk test (6MWT) is widely used to measure functional capacity in special populations. However, the factors associated with its performance in candidates for bariatric surgery are unclear. Therefore, this study aimed to investigate the influence of anthropometric and physiological factors in the 6MWT performance in bariatric surgery candidates. This cross-sectional study included 107 candidates for bariatric surgery. Anthropometric factors considered: gender, weight, height, body mass index (BMI), waist-to-hip, and waist-to-height ratios. Along with distance covered during 6MWT, physiological factors such as ratings of perceived exertion (RPE) and heart rate reserve percentage used (%HRR) were recorded. Among the 107 patients (mean age: 39.6 years), 83 volunteers were accepted to perform the 6MWT. No gender differences were observed in terms of distance covered, %HRR, and RPE during the 6MWT. Moreover, BMI and %HRR explained 21% of the 6MWT distance covered. Furthermore, participants with BMI ≤41.5 kg/m2 walked ~50 meters more than their peers above this level (p=0.05). Interestingly, heart rate increase during the 6MWT was lower than described for healthy populations. BMI and %HRR partially explain the variability of the 6MWT performance in bariatric surgery candidates.


2015 ◽  
Vol 47 ◽  
pp. 163
Author(s):  
John P. Porcari ◽  
Hannah Brown ◽  
Carl Foster ◽  
Scott Doberstein ◽  
John Greany ◽  
...  

2021 ◽  
Vol 9 (4) ◽  
pp. 553-558
Author(s):  
Aleksey V. Kosyakov ◽  

BACKGROUND: Considering the economic costs of managing patients with chronic obstructive pulmonary disease (COPD), as well as the high mortality and disability rate, it is necessary to improve the diagnosis of the disease, to look for new approaches to assessing the functional status of patients. AIM: Is to study the functional status of patients with COPD. MATERIALS AND METHODS: A comprehensive approach was applied to assess the functional status of patients: the data of the 6-minute walk test (6MWT), heart rate variability (HRV) was studied, ergoreflex was assessed according to HRV data. 64 patients with COPD and 41 male volunteers without respiratory diseases older than 40 years were examined. Statistical processing of the obtained results was carried out using the licensed package of applied statistical programs Excel 2010 and Statistica 10. RESULTS: The group of patients with COPD and the respondents of the control group were comparable in terms of body mass index, heart rate, respiratory rate, index of indicators of activity of regulatory systems (p > 0.05). As expected, during the 6MWT, differences were obtained between the studied groups in terms of the distance covered (p < 0.01). Similarly, the results of the study of the function of external respiration showed a statistically significant difference in all the studied parameters (p < 0.01). The results obtained confirmed the presence of impaired respiratory function in the group of patients with COPD. Analysis of HRV values, when conducting a test with external peripheral vascular occlusion, confirmed ergoreflex hyperactivity in patients with COPD. CONCLUSION: The integration of methods for routine clinical diagnostics of patients condition (spirometry, 6-minute walk test, assessment of autonomic status) and the introduction of the study of ergoreflex activity made it possible to expand the understanding of the functional state of patients with COPD and is of great interest for further research.


2015 ◽  
Vol 28 (3) ◽  
pp. 429-436
Author(s):  
Newton Santos de Faria Júnior ◽  
Cláudio Hiroshi Nakata ◽  
Luís Vicente Franco de Oliveira ◽  
Gaspar Rogério Chiappa ◽  
Gerson Cipriano Júnior

AbstractIntroduction The purpose of the six-minute walk test (6MWT) is to evaluate cardiopulmonary capacity using a low-cost test that is easy to administer, generally well tolerated by different populations and reflects one’s performance on activities of daily living. However, few studies have been conducted to determine the difference between performing the 6MWT indoors and outdoors.Objective The aim of the present study was to compare the distance covered on the 6MWT performed indoors and outdoors and evaluate the following physiological variables: heart rate, blood pressure and the subjective sensation of shortness of breath, using the Borg perceived exertion scale.Materials and methods A prospective, randomized, clinical trial was conducted involving eight healthy females not engaged in regular physical activity, with mean age 23.75 ± 1.67 years. Each subject performed the 6MWT indoors and outdoors with a 30-minute interval between tests. The order of the tests was determined randomly.Results The mean distance traveled was 578 ± 50.07 m on the outdoor trial and 579.95 ± 45.35 m on the indoor trial (p = 0.932). The mean physiological variables were 82.25 ± 11.02 bpm (indoors) versus 84.38 ± 9.42 bpm (outdoors) for heart rate, 121.88 ± 10.28 mmHg (indoors)versus 118.75 ± 19.40 mmHg (outdoors) for systolic blood pressure, 81.88 ± 9.74 mmHg (indoors) versus 80.50 ± 7.89 mmHg (outdoors) for diastolic blood pressure and a mean score of 12 on the perceived exertion score in both environments.Conclusions The present data demonstrate no differences in the distance walked on the 6MWT or the physiologic variables of participants between the indoor and outdoor trials.


Physiotherapy ◽  
2016 ◽  
Vol 102 (3) ◽  
pp. 294-299 ◽  
Author(s):  
J.F.deS. Barbosa ◽  
S.S. Bruno ◽  
N.S.O. Cruz ◽  
J.S. de Oliveira ◽  
J.A. Ruaro ◽  
...  

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1786.2-1787
Author(s):  
T. Holovko ◽  
L. Bohmat ◽  
N. Shevchenko ◽  
A. U. Afighi

Background:The defeat of the cardiovascular system is considered a proven comorbid state in rheumatic diseases, including rheumatoid arthritis in adults. One of the markers of the cardiovascular failure formation is BNP, namely, its N-terminal inactive fragment (NT-proBNP76), which accumulates in specific granules of cardiomyocytes. Its diagnostic value increases with the appearance of minimally expressed symptoms. The long-term course of JIA is also characterized by changes in the state of the cardiovascular system, and there may be no visible clinical manifestations. For their diagnosis a 6-minute walk test is widely used, including in children.Objectives:To study the content of NT-proBNP in patients with juvenile idiopathic arthritis and compare with the level of exercise tolerance.Methods:10 patients with JIA (9 girls, 1 boy), average age 12.78 ± 0.95 years, were examined. All children had a polyarticular RF negative subtype of JIA with a disease duration of more than three years (average disease duration 69.56 ± 17.07 months), received basic methotrexate therapy and did not have dysfunction of the lower extremities joints. The control group included 7 healthy children, comparable by sex, average age 14.25±0.73 years. An ECG, an ultrasound scan of the heart, and a 6-minute walk test (6MTX) were carried out with determining the distance traveled (6MWD) and the increase in heart rate. The level of the N-terminal polypeptide of cerebral natriuretic hormone (B-type) (NT-proBNP) was determined in the morning, after waking up, and studied by competitive immunoassay on an IMMULITE 2000 analyzer (“Siemens”).Results:In children with JIA a decrease in myocardial contractility was not detected. Left ventricular ejection fraction (62.17±0.83% (60.02 – 64.02) versus 69.84 ± 0.85% (62.3 – 80.3), p <0.05) in children with JIA were within normal limits, but significantly lower than in the control group. According to the results 6MTX indicator 6MWD in JIA-patients was 490.51 ± 11.40 m and in the control group 516.85 ± 8.84 m (p <0.05) and heart rate growth was 27.75 ± 2.30% versus in the control group (37.38 ± 3.86%), p <0.05. A negative correlation between the increase in heart rate and the duration of the disease was found (r = -0.7, p = 0.05). The level of NT-proBNP in patients with JIA was within physiological values and amounted to 47.5 ± 14.09 pg / ml (20 – 128 pg/ml), but this was higher than in children of the control group (20.29 ± 0.29 pg / ml (20-22 pg/ml), p <0.05). A high correlation was found between 6 MWD and NT-proBNP level (r = 0.8, p <0.03).Conclusion:In children with JIA there is a decrease of the exercise tolerance that increases with the duration of JIA on the background of preserved myocardial contractility. This is accompanied by a higher basal NT-proBNP level than in healthy children.Disclosure of Interests:None declared


2021 ◽  
Author(s):  
Gaurav Gupta ◽  
Emilie Paquet-Proulx ◽  
Markus Besemann ◽  
Kira Burton ◽  
Sasha Lalonde ◽  
...  

Introduction - An Ideal battery of testing for function would be inexpensive, easily administered, standardized and validated for multiple health issues. This would also be sensitive to change over time and able to extrapolate avocational and vocational tasks. The data collection exercise for this study included both subjective and objective measures which include the Short Form Health Survey 12 (SF-12), the 2 minute walk test (2MWT) and a newly developed upper extremity strength/conditioning activity called the Elevation and Movement Lift test (EMLi). Methods - A convenience sample of 102 patients with chronic pain. They were seen in the Canadian Forces Health Services Unit (CFHSU (O)) Physiatry Clinic between January-September 2019 and were asked to complete the data intake protocol. This included: completing a questionnaire with the Numeric Rating Pain Scale (NRS) covering the previous 7 days, the SF-12, and completed the 2 MWT and EMLi. Results - For the 2MWT heart rate, perceived exertion and number of steps were all increased for patients with chronic pain compared to the control group. There was no difference noted between patients with upper/lower body pain. In patients with chronic pain SF-12 physical function score negatively correlated with perceived exertion but not performance. As for the EMLI test, all groups had similar perceived exertion and heart rate outcomes but a reduced performance was noted with the upper extremity group. Discussion - For the 2MWT, the individuals performance related to effort and not their pain state, PE and SF-12. This suggests a higher capacity for walking then the patients realise. As for the EMLi, individuals performance was poorer for same level of effort. This correlates to their perceived function as seen on the SF-12 which might measure pain related dysfunction. Conclusion -The 2MWT performance was effort dependent and not correlated with perceived abilities. Therefore it can be used to challenge patient performance. EMLi performance correlated with perception and upper extremity pain. This could be used to set clinical training targets and monitor each individuals progress.


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