scholarly journals Gait Analysis in the 6-Minute Walk Test in Patients with COPD

2020 ◽  
Vol 1 (8) ◽  
Author(s):  
Jan Szczegielniak ◽  
Sebastian Rutkowski ◽  
Anna Wdowiak ◽  
Katarzyna Bogacz ◽  
Jacek Luniewski
Keyword(s):  
Gait Analysis ◽  
Active Surface ◽  
Step Length ◽  
Walk Test ◽  
Professional Literature ◽  
Physical Effort ◽  
Gait Parameters ◽  
Step Duration ◽  
6 Minute Walk Test ◽  
Minute Walk

Professional literature provides various studies discussing gait pathologies depending on the type of nervous system and skeletomuscular system. There are, however, no complex studies discussing aspects of gait, such as walking pace, step length or step duration during the 6-minute walk test in patients with COPD. The objective of this work was, therefore, to analyse the gait of patients with COPD during the 6-minute walk test. It attempted to answer the question how gait parameters change during physical effort in case of patients with COPD. The research included 33 in-patients with COPD (27 males and 6 females), with median age of 65.7 ± 10.4, treated in MSWiA Hospital in Glucholazy. For the purposes of gait analysis, the GaitRite mat was used to measure walking pace, step length and step duration. The mat was 4 meters in length and the active surface consisted of 14 thousand sensors. Pearson’s correlation index and t test were used to calculate the relationships between the tested parameters. The analysis of the results showed that as the distance covered in the 6-minute walk test increased, the pace of walking decreased and the step duration and length significantly increased (p < 0.05). High correlations between the values of gait parameters and distance covered were observed. The research showed statistically significant differences in the values of parameters indicating walk pace, step duration and step length between the first and the last tests.Keywords: gait analysis, 6MWT, COPD.

scholarly journals Effects of Rehabilitation on Gait Pattern at Usual and Fast Speeds Depend on Walking Impairment Level in Multiple Sclerosis

2018 ◽  
Vol 20 (5) ◽  
pp. 199-209 ◽  
Author(s):  
Carmela Leone ◽  
Alon Kalron ◽  
Tori Smedal ◽  
Britt Normann ◽  
Inez Wens ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Walking Speed ◽  
Step Length ◽  
Physical Rehabilitation ◽  
Walk Test ◽  
Rehabilitation Treatment ◽  
Gait Parameters ◽  
Patient Reported ◽  
Walking Capacity ◽  
Minute Walk

Abstract Background: Physical rehabilitation can improve walking capacity in persons with multiple sclerosis (MS). However, changes in spatiotemporal gait parameters after rehabilitation are not frequently evaluated, and it is unknown to what extent potential effects depend on baseline disability level. The objective was to investigate the effectiveness of rehabilitation programs on gait parameters at usual and fastest speeds in persons with MS categorized according to walking speed. Methods: This nonrandomized multinational study in “real-world” settings evaluated participants before and after conventional rehabilitation. Outcome measurements included spatiotemporal gait parameters assessed by an electronic walkway (at usual and fastest speeds), walking capacity tests (Timed 25-Foot Walk test, 2-Minute Walk Test, 6-Minute Walk Test), and the patient-reported 12-item Multiple Sclerosis Walking Scale. Patients were allocated into three subgroups based on walking speed (&lt;0.82 m/s and &gt;1.14 m/s) and MS center. Results were calculated for the total group and subgroups. Results: Forty-two persons with MS (26 women; mean ± SD age, 44.6 ± 11.0 years; mean ± SD Expanded Disability Status Scale score, 3.5 ± 1.5) receiving rehabilitation treatment were enrolled. After rehabilitation treatment, the group demonstrated a significant decrease in double support time and an increase in stride length and step length (left leg) at usual and fastest speeds. Velocity and step length (right leg) increased only at usual speed. Subgroup analysis revealed greatest and clinically meaningful improvements in more disabled persons with MS. Conclusions: Physical rehabilitation induced changes in spatiotemporal gait parameters in persons with MS. The magnitude of improvement was greater in participants with more walking impairment.

scholarly journals Is There a Sex Difference in Accelerometer Counts During Walking in Older Adults?

2014 ◽  
Vol 11 (3) ◽  
pp. 626-637 ◽  
Author(s):  
Dane R. Van Domelen ◽  
Paolo Caserotti ◽  
Robert J. Brychta ◽  
Tamara B. Harris ◽  
Kushang V. Patel ◽  
...  
Keyword(s):  
Older Adults ◽  
Sex Difference ◽  
Walking Speed ◽  
Vertical Axis ◽  
Step Length ◽  
Walk Test ◽  
Free Living ◽  
Males And Females ◽  
6 Minute Walk Test ◽  
Minute Walk

Background:Accelerometers have emerged as a useful tool for measuring free-living physical activity in epidemiological studies. Validity of activity estimates depends on the assumption that measurements are equivalent for males and females while performing activities of the same intensity. The primary purpose of this study was to compare accelerometer count values in males and females undergoing a standardized 6-minute walk test.Methods:The study population was older adults (78.6 ± 4.1 years) from the AGES-Reykjavik Study (N = 319). Participants performed a 6-minute walk test at a self-selected fast pace while wearing an ActiGraph GT3X at the hip. Vertical axis counts·s−1 was the primary outcome. Covariates included walking speed, height, weight, BMI, waist circumference, femur length, and step length.Results:On average, males walked 7.2% faster than females (1.31 vs. 1.22 m·s−1, P < .001) and had 32.3% greater vertical axis counts·s−1 (54.6 vs. 39.4 counts·s−1, P < .001). Accounting for walking speed reduced the sex difference to 19.2% and accounting for step length further reduced the difference to 13.4% (P < .001).Conclusion:Vertical axis counts·s−1 were disproportionally greater in males even after adjustment for walking speed. This difference could confound free-living activity estimates.

Gait parameters assessed with inertial measurement unit during 6-minute walk test in people after stroke

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Joel Pollet ◽  
Riccardo Buraschi ◽  
Jorge Hugo Villafañe ◽  
Barbara Piovanelli ◽  
Stefano Negrini
Keyword(s):  
Inertial Measurement Unit ◽  
Measurement Unit ◽  
Walk Test ◽  
Inertial Measurement ◽  
Gait Parameters ◽  
6 Minute Walk Test ◽  
Minute Walk

Influence of step length on 6-minute walk test performance in patients with chronic heart failure

Physiotherapy ◽  
2012 ◽  
Vol 98 (4) ◽  
pp. 325-329 ◽  
Author(s):  
Garyfallia K. Pepera ◽  
Gavin R. Sandercock ◽  
Rebecca Sloan ◽  
John J.F. Cleland ◽  
Lee Ingle ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Test Performance ◽  
Step Length ◽  
Walk Test ◽  
6 Minute Walk Test ◽  
Minute Walk

Direct Myocardial Implantation of Human Fetal Stem Cells in Heart Failure Patients: Long-term Results

2010 ◽  
Vol 13 (1) ◽  
pp. 31 ◽  
Author(s):  
Federico Benetti ◽  
Ernesto Pe�herrera ◽  
Teodoro Maldonado ◽  
Yan Duarte Vera ◽  
Valvanur Subramanian ◽  
...  
Keyword(s):  
Heart Failure ◽  
Stem Cells ◽  
Cardiac Function ◽  
Nyha Class ◽  
Left Ventricular ◽  
Long Term Results ◽  
Walk Test ◽  
The Mean ◽  
6 Minute Walk Test ◽  
Minute Walk

Background: End-stage heart failure (HF) is refractory to current standard medical therapy, and the number of donor hearts is insufficient to meet the demand for transplantation. Recent studies suggest autologous stem cell therapy may regenerate cardiomyocytes, stimulate neovascularization, and improve cardiac function and clinical status. Although human fetal-derived stem cells (HFDSCs) have been studied for the treatment of a variety of conditions, no clinical studies have been reported to date on their use in treating HF. We sought to determine the efficacy and safety of HFDSC treatment in HF patients.Methods and Results: Direct myocardial transplantation of HFDSCs by open-chest surgical procedure was performed in 10 patients with HF due to nonischemic, nonchagasic dilated cardiomyopathy. Before and after the procedure, and with no changes in their preoperative doses of medications (digoxin, furosemide, spironolactone, angiotensin-converting enzyme inhibitors, angiotensin receptor blockers, betablockers), patients were assessed for New York Heart Association (NYHA) class, performance in the exercise tolerance test (ETT), ejection fraction (EF), left ventricular end-diastolic dimension (LVEDD) via transthoracic echocardiography, performance in the 6-minute walk test, and performance in the Minnesota congestive HF test. All 10 patients survived the operation. One patient had a stroke 3 days after the procedure, and although she later recovered, she was unable to perform the follow-up tests. Another male patient experienced pericardial effusion 3 weeks after the procedure. Although it resolved spontaneously, the patient abandoned his control tests and died 5 months after the procedure. An autopsy of the myocardium suggested that new young cells were present in the cardiomyocyte mix. At 40 months, the mean (SD) NYHA class decreased from 3.4 0.5 to 1.33 0.5 (P = .001); the mean EF increased 31%, from 26.6% 4% to 34.8% 7.2% (P = .005); and the mean ETT increased 291.3%, from 4.25 minutes to 16.63 minutes (128.9% increase in metabolic equivalents, from 2.46 to 5.63) (P < .0001); the mean LVEDD decreased 15%, from 6.85 0.6 cm to 5.80 0.58 cm (P < .001); mean performance in the 6-minute walk test increased by 43.2%, from 251 113.1 seconds to 360 0 seconds (P = .01); the mean distance increased 64.4%, from 284.4 144.9 m to 468.2 89.8 m (P = .004); and the mean result in the Minnesota test decreased from 71 27.3 to 6 5.9 (P < .001).Conclusion: Although these initial findings suggest direct myocardial implantation of HFDSCs is feasible and improves cardiac function in HF patients at 40 months, more clinical research is required to confirm these observations.

Prognostic role of results of dynamic capnography in integral assessment of parameters of respiratory system in 6-minute walk test in patients with chronic heart failure

2020 ◽  
Vol 28 (3) ◽  
pp. 290-299
Author(s):  
Kira A. Ageeva ◽  
Evgenii V. Filippov
Keyword(s):  
Respiratory System ◽  
Prognostic Significance ◽  
Left Ventricular ◽  
Left Ventricular Ejection ◽  
Control Group ◽  
Walk Test ◽  
Ventricular Ejection Fraction ◽  
6Mwt Distance ◽  
6 Minute Walk Test ◽  
Minute Walk

Aim. To study the prognostic value of the results of dynamic capnography in the complex assessment of parameters of the respiratory system in 6-minute walk test in patients with chronic heart failure (CHF). Materials and Methods. 73 Patients were examined: the group of study included 48 patients with IIA or IIB stage CHF (mean age 57.94.6 years, 23 men), the control group included 25 practically healthy volunteers (mean age 47.63.5 years, 9 men). The patients were conducted complex determination of parameters of the respiratory system: clinical scaling before and after 6-minute walk test (6MWT), instrumental examinations including spirometry, capnography and pulse oximetry before, during and after physical activity. The analysis of survival was conducted on the basis of the dynamic follow-up of patients within 5 years (60 months). Results. In the analysis of parameters of dyspnea at rest, all the parameters were higher in the group of patients with CHF (р0.05). The distance walked by the patients with CHF in 6 minutes was 488.2390.84 m, which was significantly less than in the control group (815.6053.89 m, р=0.009). Dyspnea as the cause of stoppage/slowing down of walking in 6MWT, was also more often recorded in patients with CHF (93.83.0% and 48.05.1%, р=0.049). Besides, in 6MWT the patients noted: weakness in legs (50.15.0% in the group of CHF and 40.05.0% in the control group, р=0.014), palpitation (29.04.6% and 20.04.1%, respectively, р=0.004). Worsening of dyspnea parameters in 6MWT was more evident in patients with CHF than in the control group (р0.01). In the CHF group, hypocapnic type of ventilation was revealed in 6MWT, analysis of РЕТСО2 trend graphs revealed a wave-like increase in the parameters, the so called periodic breathing (PB). CO2 trend was recorded in CHF group in 58.31.0% of cases (the difference with the control group with р=0.046), the trend of heart rate in 18.80.3% of cases (р=0.027). Cox proportional hazards regression analysis of mortality in patients with CHF showed a prognostic significance of a complex model comprising the following parameters of a patient: body mass index (р=0.005), left ventricular end-diastolic dimension (р=0.034), left ventricular end-systolic dimension (р=0.002), left ventricular ejection fraction (р=0.041), 6MWT distance (р=0.004), desaturation (р=0.009), and the presence of signs of PB during 6MWT (р=0.005). Model coefficients were statistically significant at р0.0001. Conclusions. Dynamic capnography and pulse oximetry allow to identify signs of PB in patients with CHF during 6MWT which may deepen a complex assessment of parameters of the cardio-respiratory system in patients with CHF in order to determine tolerance to physical exercise as well as the effectiveness of the conducted treatment. Complex assessment of survival of patients with CHF showed prognostic significance of the following parameters of a patient: body mass index, left ventricular end-diastolic dimension, left ventricular end-systolic dimension, left ventricular ejection fraction, 6MWT distance, desaturation, PB during 6MWT.

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