scholarly journals REPRODUCIBILITY OF PHYSIOLOGICAL VARIABLES OF THE SIX-MINUTE WALK TEST IN HEALTHY STUDENTS

2021 ◽  
Vol 39 ◽  
Author(s):  
Patrícia Morgana Rentz Keil ◽  
Janaína Cristina Scalco ◽  
Renata Maba Gonçalves Wamosy ◽  
Camila Isabel Santos Schivinski
Keyword(s):  
Oxygen Consumption ◽  
Intraclass Correlation ◽  
Forced Expiratory Volume ◽  
Wilcoxon Test ◽  
Walk Test ◽  
Cross Sectional ◽  
Significance Level ◽  
Physiological Variables ◽  
Six Minute Walk Test ◽  
Minute Walk

ABSTRACT Objective: To verify the reproducibility of the six-minute walk test (6MWT) performance and its physiological variables in healthy students. Methods: This is as prospective cross-sectional study. The sample consisted of healthy students aged 6-12 years old from public and private schools in the region of Florianópolis City, Santa Catarina State, (Southern Brazil). The medical state was considered according to the health records and scores on the International Study of Asthma and Allergies in Childhood (ISAAC) and the spirometric values of forced expiratory volume in the first second and forced vital capacity above 80% of what was predicted. Two 6MWTs were conducted with a 30-minute interval between them, following the recommendations from the American Thoracic Society. Physiologic variables were recorded using the portable telemetric gas analyzer K4b2 (Cosmed®, Italy). For analysis, the dyspnea index, the perception of effort and performance variables identified in both 6MWT were considered. Data distribution was verified with the Shapiro-Wilk test and statistical analysis included paired t-test or Wilcoxon test, and intraclass correlation coefficient (ICC). The significance level adopted was 5%. Results: A total of 22 students with a mean age of 10.2±1.5 years participated in the study. The covered distance and the variation of oxygen consumption reproducibility between the two 6MWTs presented ICC=0.76 and ICC=0.86, respectively. There was also similar behavior of the physiological variables when comparing the two tests (p=0.001), especially the minute volume (MV), the oxygen consumption (VO2), and the carbon dioxide production (VCO2). Conclusions: The 6MWT showed reproducible values, both in performance and physiological parameters, in the healthy students analyzed.

scholarly journals Correlation between 6-minute walk distance and spirometry parameters in stable chronic obstructive pulmonary disease patients

2018 ◽  
Vol 7 (1) ◽  
pp. 34
Author(s):  
Ruchita B. Hajare ◽  
Raziya Nagarwala ◽  
Ashok Shyam ◽  
Parag Sancheti
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Strong Positive Correlation ◽  
Walk Test ◽  
Cross Sectional ◽  
Obstructive Pulmonary Disease ◽  
Six Minute Walk Test ◽  
Tertiary Center ◽  
Minute Walk

Background: Six minute walk test (6MWT) is a sub-maximal exercise test, used as a clinical indicator of the functional capacity, in patients with cardiopulmonary diseases. It is simple, objective and reproducible test. The present study was designed to assess correlation of six minute walk test with spirometry parameters, in patients with chronic obstructive pulmonary disease.Methods: In this cross sectional study, fifty patients diagnosed with chronic obstructive pulmonary disease (GOLD criteria) coming to tertiary center were recruited according to inclusion and exclusion criteria. All patients underwent spirometric measurement. Spirometric indices including FEV1, FVC, FEV1/FVC and MVV were tested using computerized spirometer. 6MWT was performed following American Thoracic Society (ATS) guidelines. Percent (%) predicted 6MWD was calculated. Correlation between spirometry and 6MWT was assessed.Results: It was found that correlation between 6MWT and spirometry is statistically significant. There is significant strong positive correlation between percent predicted 6MWD and FEV1 (r=0.850 and p= <0.001), whereas there is significant moderate correlation between percent predicted 6MWD and FVC (r=0.554 and p= <0.001), FEV1/FVC (r=0.509 and p= <0.001) and MVV (r=0.615 and p= <0.001).Conclusions: In chronic obstructive pulmonary disease, percent predicted 6mwd significantly correlated with the spirometry parameters (FEV1, FVC, FEV1/FVC, and MVV). 6MWD decreases as there is decline in the pulmonary function. 6MWT can be a useful replacement of spirometry in assessment of severity of COPD.

Decreased Ankle Brachial Index Score against Distance Covered During Six Minute Walk Test in Diabetes Mellitus Type 2 Patients

2020 ◽  
Vol 6 (1) ◽  
pp. 46-48
Author(s):  
Ni Made Elva Mayasari
Keyword(s):  
Diabetes Mellitus ◽  
Ankle Brachial Index ◽  
Primary Data ◽  
Diabetic Patients ◽  
Walking Ability ◽  
Walk Test ◽  
Cross Sectional ◽  
Six Minute Walk Test ◽  
Minute Walk

Diabetes mellitus (DM) is a metabolic disease with characteristics of hyperglycemia due to abnormalities of insulin secretion, insulin action or both. DM is a risk factor for Peripheral Artery Disease (PAD). PAD is a progressive narrowing process of peripheral arteries, especially in the inferior limb arteries. As a result, there is a reduction in blood flow to the affected limb. Most patients do not show symptoms, but many also experience intermittent claudication. PAD can be diagnosed and its severity assessed using the Ankle Brachial Index (ABI) Score. PAD can cause disturbances in muscle mass and strength so that it can cause limitations in walking ability including gait, walking speed, and balance which ultimately impair Six Minute Walk Test (SMWT). The purpose of this study was to see whether there is an effect of decreasing ABI Score on distance covered during SMWT in diabetic patients. This study was analytic observational with a cross sectional study design using primary data and secondary data from DM patients who have never been diagnosed with PAD in Polyclinic of Muhammadiyah Hospital in Palembang. The sample size in this study was 40 patients with type 2 DM who were selected using nonprobability sampling with consecutive sampling method. The subject have their ABI and SMWT measured. The collected data was analyzed by chi-square test. In this study, the significance value was p = 0.016 (p <0.05) which can be concluded that there was an effect of decreasing ABI score on distance during SMWT in DM patients

Demographic/anthropometric factors and physiological performance-related parameters associated with the six-minute walk test in bariatric surgery candidates, from Valdivia, Chile

2021 ◽  
Vol 28 (3) ◽  
pp. 267-275
Author(s):  
Mariana Kalazich-Rosales ◽  
Camila Mautner-Molina ◽  
Cecilia König-Araya ◽  
Francisca Fuentes-Leal ◽  
Carlos Cárcamo-Ibaceta ◽  
...  
Keyword(s):  
Bariatric Surgery ◽  
Heart Rate ◽  
Perceived Exertion ◽  
Cross Sectional Study ◽  
Walk Test ◽  
Cross Sectional ◽  
Physiological Factors ◽  
Six Minute Walk Test ◽  
6Mwt Distance ◽  
Minute Walk

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.

Changes in physiological variables in patients with diffuse interstitial lung disease in the six-minute walk test

2021 ◽  
Vol 17 ◽  
Author(s):  
Jhonatan Betancourt-Peña ◽  
Daniela Domínguez-Muñoz ◽  
Paola Salazar ◽  
Juan Carlos Ávila-Valencia
Keyword(s):  
Interstitial Lung Disease ◽  
Lung Disease ◽  
Aerobic Capacity ◽  
Pulmonary Rehabilitation ◽  
Lower Limbs ◽  
Walk Test ◽  
Physiological Variables ◽  
Six Minute Walk Test ◽  
Informed Consent Form ◽  
Minute Walk

Objective: Diffuse Interstitial Lung Disease (DILD) is a pathology with a high mortality rate in Colombia as well as around the world. Linking patients to pulmonary rehabilitation programs is essential to improve their quality of life and aerobic capacity; thus, all patients perform the six-minute walk test (6-MWT). This study aimed to describe the changes in physiological and aerobic capacity-related variables in patients with DILD in the 6-MWT at admission to a pulmonary rehabilitation program and determine possible differences between patients with idiopathic pulmonary fibrosis (IPF) and other DILDs. Methods: This is a cross-sectional descriptive study on patients with DILD who performed the 6-MWT between January 2017 and February 2019. Sociodemographic, clinical, physiological, and exercise tolerance variables were taken into account at four different times of the 6-MWT: Rest time, the end, and the first and the fifth minute after the end of the test. The Human Ethics Committee endorsed the study, and all participants signed the informed consent form. Results: There were 64 patients with DILD. The average age was 60.84 years, 53.1% were female, 73.4% required home oxygen, and 53.1% had a diagnosis of IPF. There were no statistically significant differences in the heart rate (HR), respiratory rate (RR), peripheral oxygen saturation (SpO2), Borg scale, and fatigue in lower limbs at the four evaluated moments of the test for both groups of patients with DILD (p=0.000); moreover, the FEV1/FVC ratio for patients with other DILD was higher (p=0.000). The distance traveled for IPF was 339.26±124.84, while for other DILDs, it was 365.63±113.00 (p=0.382). Conclusions: Patients with other DILDs have better FEV1/FVC and travel longer distances with less dyspnea and fatigue than patients with IPF during the 6-MWT. Both groups' HR, RR, SpO2, Borg, and fatigue variables presented significant changes during the 6-MWT.

scholarly journals Comparison of Londrina activities of daily living protocol and Glittre ADL test on cardio-pulmonary response in patients with COPD: a cross-sectional study

2020 ◽  
Vol 15 ◽  
Author(s):  
Chaitali Deshpande ◽  
Gopala Krishna Alaparthi ◽  
Shyam Krishnan ◽  
Kalyan Chakravarthy Bairapareddy ◽  
Anand Ramakrishna ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Activities Of Daily Living ◽  
Daily Living ◽  
Cross Sectional Study ◽  
Test Time ◽  
Walk Test ◽  
Cross Sectional ◽  
Six Minute Walk Test ◽  
Pulmonary Response ◽  
Minute Walk

Background: In COPD patients it is very important to assess the activities of daily living (ADL) due to an impairment of independence and quality of life. There is a lack of retrievable data regarding the cardio-pulmonary response to Londrina ADL protocol in patients with COPD. The aim of the present study was to assess the cardio-pulmonary response to Londrina ADL protocol in patients with COPD and to compare this with responses to the Glittre ADL test. Methods: This cross-sectional study was done on 30 COPD subjects. Each subject was made to perform the Londrina ADL protocol, Glittre ADL test, twice each, on subsequent days. The Londrina ADL protocol comprises 5 activities representing ADL, involving upper limbs, lower limbs, and trunk movements. The Glittre ADL test consists of completing a circuit while carrying a weighted backpack (2.5 kg for women, 5.0 kg for men). The better value of the two was taken into consideration. For the Londrina ADL protocol and Glittre ADL test the outcome of primary interest was time and for the six-minute walk test was the distance walked. The secondary outcomes for all the tests were heart rate, systolic blood pressure, diastolic blood pressure, respiratory rate, saturation of oxygen in blood and dyspnea.Results: The COPD subjects of age group 63.27±11.07 years took 5.94±0.36 min to complete trial 2 of the Londrina ADL protocol. A significant physiological increase in heart rate (p≤0.01), respiratory rate (p≤0.01), blood pressure (p≤0.01) and severity of dyspnea (p≤0.01) were observed whereas saturation of oxygen in blood (p≤0.01) was reduced at the end of the Londrina ADL protocol and Glittre ADL test. There was a positive, non-significant correlation between the six-minute walk test distance and the Londrina ADL protocol time (r=0.236) (p=0.209). A positive, not significant correlation was observed between the Glittre ADL test (time) and the Londrina ADL protocol (time) (r=0.194) (p=0.304) and a negative but not significant correlation between the six-minute walk test (distance) and the Glittre ADL test (time) (r= -0.184) (p=0.330).Conclusion: The Londrina ADL protocol can be used as an assessment tool to the evaluation of functional performance and activities of daily living in COPD along with other test protocols in pulmonary rehabilitation.

scholarly journals Evaluation of the best environment for the six-minute walk test

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
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Perceived Exertion ◽  
Low Cost ◽  
Walk Test ◽  
Physiological Variables ◽  
Six Minute Walk Test ◽  
The Mean ◽  
The Difference ◽  
Minute Walk

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.

scholarly journals Lama Menderita Diabetes Melitus Tipe 2 terhadap jarak yang ditempuh selama Six Minute Walk Test

2019 ◽  
Vol 9 (2) ◽  
pp. 65
Author(s):  
Ni Made Elva Mayasari ◽  
Raden Ayu Tanzila ◽  
Woro Nurul sandra Anindhita
Keyword(s):  
Heart Failure ◽  
Cross Sectional Study ◽  
Walk Test ◽  
Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
Consecutive Sampling ◽  
Six Minute Walk Test ◽  
Minute Walk ◽  
Diabetes Melitus

Pasien diabetes melitus sangat rentan terkena komplikasi akibat hiperglikemia yang dialami. Semakin lama pasien diabetes melitus mengalami hiperglikemia maka dapat menyebabkan berbagai macam komplikasi baik komplikasi mikrovaskular dan juga komplikasi makrovaskular seperti cardiovascular disease, coronary heart disease, heart failure dan lain-lain, meskipun komplikasi tersebut juga dipengaruhi faktor lain seperti diet dan juga pengobatan. Komplikasi makrovaskular pada diabetes melitus dapat menyebabkan penurunan kapasitas fungsional. Penurunan kapasitas fungsional tersebut salah satunya dapat diukur dengan menggunakan six minute walk test. Penelitian ini bertujuan untuk mengetahui hubungan antara lamanya menderita diabetes melitus terhadap jarak yang ditempuh selama six minute walk test. Penelitian ini bersifat analitik observasional dengan desain cross sectional study dengan besar sampel sebanyak 40 orang yang dipilih menggunakan nonprobability sampling dengan metode consecutive sampling. Hasil uji Chi-square didapatkan tidak terdapat hubungan antara lama menderita DM terhadap jarak yang ditempuh selama six minute walk test dengan nilai signifikannya adalah 0,69 (p>0,05).

scholarly journals Comparison between actual and predicted postoperative stair-climbing test, walk test and spirometric values in patients undergoing lung resection

2010 ◽  
Vol 25 (6) ◽  
pp. 535-540 ◽  
Author(s):  
Marcos Vinícius Cataneo Pancieri ◽  
Daniele Cristina Cataneo ◽  
Jair Cortez Montovani ◽  
Antonio José Maria Cataneo
Keyword(s):  
Pulmonary Resection ◽  
Lung Resection ◽  
Forced Expiratory Volume ◽  
Stair Climbing ◽  
Repeated Measure ◽  
Walk Test ◽  
Significance Level ◽  
Measure Anova ◽  
6 Minute Walk Test ◽  
Minute Walk

PURPOSE: To assess whether the tests - Forced Expiratory Volume at one second (FEV1), 6-minute walk test (6MWT) and stair-climbing test (SCT) showed proportional changes after the resection of functioning lung. METHODS: Candidates for pulmonary resection were included. Spirometry, 6MWT and SCT were performed preoperatively (pre) and at least 3 months after surgery (pos). SCT was performed on a staircase with a total ascent height of 12.16m. The time taken to climb the total height the fastest possible was defined as stair-climbing time (SCt). Number of functioning segments lost, was used to calculated predicted postoperative (ppo) tests values. Pre, ppo and pos values for each test were compared. Data were analyzed by repeated-measure ANOVA with significance level set at 5%. RESULTS: A total of 40 patients were enrolled. Pulmonary resection results ranged from gain of 2 functioning segments to loss of 9. Pre, ppo and pos values were the following: preFEV1 = 2.6±0.8L, ppo FEV1 =2.3±0.8L, and pos FEV1=2.3±0.8L, (pre FEV1 > ppo FEV1 = pos FEV1); pre6MWT = 604±63m, ppo6MWT= 529±103m, pos6MWT= 599±74m (pre6MWT = pos6MWT > ppo6MWT); preSCt = 32.9±7.6s, ppoSCt = 37.8±12.1s, posSCt = 33.7±8.5s (preSCt = posSCt < ppoSCt). CONCLUSION: In our group of patients, pulmonary resection led to loss of lung function measured by spirometry, but not to exercise capacity measured by stair-climbing and walk tests.

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