Ethics code: IR.UT.PSYEDU.REC.1401.076
1- Motor Behavior Department, Faculty of Physical Education and Sport Sciences, University of Kharazmi, Tehran, Iran.
2- Cognitive and Behavioral Science and Technology in Sport Department, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran.
3- Neurology Department, Faculty of Medical Sciences, Islamic Azad University of Tehran, Tehran, Iran.
2- Cognitive and Behavioral Science and Technology in Sport Department, Faculty of Sport Sciences and Health, Shahid Beheshti University, Tehran, Iran.
3- Neurology Department, Faculty of Medical Sciences, Islamic Azad University of Tehran, Tehran, Iran.
Abstract: (216 Views)
Background & Objectives: Multiple sclerosis (MS) is a chronic neurological disorder that commonly affects individuals over the age of 20 and can cause impaired motor control, including walking and balance disorders. Fatigue is a significant symptom among MS patients that can have a negative impact on their quality of life and ability to perform daily activities. This study aimed to investigate how physical exercise-induced fatigue, affects MS patient’s postural control.
Methods: This study followed a semi-experimental design with pre-test and post-test stages with a control group. The statistical population was MS patients in Tehran, and statistical samples from among qualified volunteers were purposefully included in the study and were divided into two groups: control (20 people) and MS patients (18 people). The study's inclusion criteria are as follows: individuals must have a confirmed diagnosis of MS by a qualified neurologist and fall within the age range of 20 to 50 years. Additionally, participants must have an Expanded Disability Status Scale score below 4.5, be able to stand for at least 30 seconds and walk independently for a minimum of 10 meters without the assistance of any devices. They should also be free of any cardiovascular or musculoskeletal disorders, not currently taking any medication that affects balance or fatigue, and without any vision, hearing, or mental impairment. Lastly, they must possess the ability to perform active muscle contraction. The criterion for exclusion was non-participation and lack of cooperation during the sessions. The indices of anteroposterior and mediolateral sway and sway area were obtained using the Kistler force plate device to evaluate postural control in two stages before and after fatigue due to physical exercise. Bruce's modified fatigue protocol was used on a Sportec treadmill to induce fatigue. The data analysis involved the use of descriptive statistical indicators such as mean and standard deviation. In the inferential statistic, we conducted a multivariate analysis of the covariance test to compare the effect of fatigue on the sway indices, anteroposterior, and mediolateral of the center of pressure (COP) in two groups: patients with MS and control. The data were analyzed using SPSS software version 28, and the significance level of the tests was considered 0.05.
Results: The results of this study showed a significant difference in the displacement of COP in the anteroposterior and mediolateral directions (p<0.001) and also in the sway area (p=0.001) between the two groups, control and MS patients.
Conclusion: Based on the results of our study, it appears that physical exercise-induced fatigue has a detrimental effect on postural control in individuals with MS. Specifically, we observed an increase in COP displacement in both the anteroposterior and mediolateral directions, as well as an increased range of sway area during states of fatigue. However, further research is necessary to conduct a more comprehensive investigation into the various factors that influence postural control in MS patients. Overall, our findings highlight the importance of managing fatigue in individuals with MS, as it can significantly impact their ability to maintain proper balance and posture.
Methods: This study followed a semi-experimental design with pre-test and post-test stages with a control group. The statistical population was MS patients in Tehran, and statistical samples from among qualified volunteers were purposefully included in the study and were divided into two groups: control (20 people) and MS patients (18 people). The study's inclusion criteria are as follows: individuals must have a confirmed diagnosis of MS by a qualified neurologist and fall within the age range of 20 to 50 years. Additionally, participants must have an Expanded Disability Status Scale score below 4.5, be able to stand for at least 30 seconds and walk independently for a minimum of 10 meters without the assistance of any devices. They should also be free of any cardiovascular or musculoskeletal disorders, not currently taking any medication that affects balance or fatigue, and without any vision, hearing, or mental impairment. Lastly, they must possess the ability to perform active muscle contraction. The criterion for exclusion was non-participation and lack of cooperation during the sessions. The indices of anteroposterior and mediolateral sway and sway area were obtained using the Kistler force plate device to evaluate postural control in two stages before and after fatigue due to physical exercise. Bruce's modified fatigue protocol was used on a Sportec treadmill to induce fatigue. The data analysis involved the use of descriptive statistical indicators such as mean and standard deviation. In the inferential statistic, we conducted a multivariate analysis of the covariance test to compare the effect of fatigue on the sway indices, anteroposterior, and mediolateral of the center of pressure (COP) in two groups: patients with MS and control. The data were analyzed using SPSS software version 28, and the significance level of the tests was considered 0.05.
Results: The results of this study showed a significant difference in the displacement of COP in the anteroposterior and mediolateral directions (p<0.001) and also in the sway area (p=0.001) between the two groups, control and MS patients.
Conclusion: Based on the results of our study, it appears that physical exercise-induced fatigue has a detrimental effect on postural control in individuals with MS. Specifically, we observed an increase in COP displacement in both the anteroposterior and mediolateral directions, as well as an increased range of sway area during states of fatigue. However, further research is necessary to conduct a more comprehensive investigation into the various factors that influence postural control in MS patients. Overall, our findings highlight the importance of managing fatigue in individuals with MS, as it can significantly impact their ability to maintain proper balance and posture.
Type of Study: Original Research Article |
Subject:
Rehabilitation
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