Outcome measures used in trials on gait rehabilitation in multiple sclerosis: A systematic literature review

Outdoor walking exercise therapy improves walking capacity and well-being in persons with multiple sclerosis: A randomized controlled trial

BACKGROUND

While outdoor walking exercise therapy could likely elicit multiple beneficial effects in persons with multiple sclerosis (pwMS), little evidence exists.

OBJECTIVE

To evaluate the effects of a 7-week group-based outdoor walking exercise therapy intervention on walking capacity and mental well-being as well as additional outcomes in pwMS.

METHODS

In this randomized controlled trial, n = 62 ambulatory pwMS (49/62, 79% females; 51 years [range, 27-68 years]), patient-determined disease steps 1.7 (range, 0-4) were assigned to either a WALK group (a 'personalized' program suited to the starting level of each participant, including one continuous and one intermittent supervised walking session per week at moderate-to-high intensity) or a CONTROL group (continuation of habitual lifestyle). Tests were carried out at baseline (Pre) and after the intervention (Post). Walking capacity included 6-minute walk test (6MWT; primary outcome), timed 25-foot walk test (T25FWT), and six spot step test (SSST). Walking fatigability indexes were calculated from 6MWT data. Patient-reported outcomes included 12-item MS Walking Scale (MSWS), modified fatigue impact scale (MFIS), 7-item falls efficacy scale-international (FES-I), World Health Organization five well-being index (WHO5; main secondary outcome), and 0-100 visual analogue scale health-related quality of life (HR-QoL).

RESULTS

Across the 7-week intervention period, n = 17 (5/17, 27%) pwMS dropped out. No adverse events were reported. Across all WALK sessions, 78% of the time was spent on forest/gravel trails. Substantial between-group changes were observed (beneficial changes in WALK vs no changes in CONTROL) in 6MWT (mean change [95% CI]; +41 m [22;60]; deemed clinically relevant), T25FWT (+0.27 [0.15;0.39] m/s), SSST (-0.80 [-1.33;-0.27] s), WHO5 (+7.3 [0.1;14.5] points), MSWS (-5.1 [-9.2;-1.0] points), MFIS (-6.7 [-11.7;-1.7] points), FES-I (trend; -0.8 [-1.7;0.1] points), and HR-QoL (trend; +5.3 [-2.3;12.9] points). In contrast, walking fatigability indexes remained unaffected.

CONCLUSIONS

Outdoor walking exercise therapy elicited multiple beneficial effects in pwMS, especially evidenced by improvements in walking capacity and mental well-being.

TRIAL REGISTRATION

ClinicalTrials.gov identifier NCT05415956.

Is exergaming really effective in improving participation in people with multiple sclerosis? A systematic review

BACKGROUND

Exergaming has been frequently used in rehabilitation programs for people with multiple sclerosis (PwMS). However, its effects on the participation domain of the International Classification of Functioning, Disability, and Health (ICF) remain uncertain.

OBJECTIVE

To examine the effects of exergaming on participation and the assessment tools used to evaluate participation in PwMS.

METHOD

The review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and the protocol was registered on PROSPERO. Three databases (PubMed, Web of Science, and Scopus) were searched through February 2024. Selection of eligible studies was conducted by two independent reviewers and only randomized controlled trials were included. The methodologic quality of the included studies was determined using the PEDro scale. Data were categorized by two independent researchers as follows: demographic and clinical characteristics of the participants, content and duration of the treatment, outcome measures used, and the effects of exergaming on participation.

RESULTS

Seventeen randomized controlled trials with a total of 942 participants were included. The outcome measures used in the studies were not specific to the participation component of the ICF. It was observed that participation was most frequently evaluated through quality-of-life questionnaires, as well as mood, motivation/satisfaction, technology acceptance, or adherence assessments were used. Seven studies assessing quality of life reported statistically significant differences after exergaming.

CONCLUSION

Exergame interventions have been shown to improve participation-related factors including quality of life, mood, and treatment adherence in PwMS. However, future studies should prioritize increasing participation and assess improvements using targeted outcome measures.

Reliability and validity of the L test in people with multiple sclerosis

OBJECTIVES

Functional mobility is an essential factor affecting the activities of daily living in people with multiple sclerosis (PwMS). The L test is a comprehensive assessment tool for functional mobility that incorporates sit-to-stand, transfers and bidirectional turning. The purpose of this study was to determine the psychometric properties of the L test in PwMS.

DESIGN

Cross-sectional study.

PARTICIPANTS

Thirty-four PwMS [Expanded Disability Status Scale (EDSS) score 0 to 5] and 34 healthy controls were included in this study.

MAIN OUTCOME MEASURES

The L test was administered along with the timed up and go (TUG) test, 10-m walk test (10-MWT), 6-minute walk test (6-MWT), timed 360 degree turn test, and EDSS by the same rater. Fall history was recorded to categorize PwMS with and without a history of falls. The L test was repeated after 1 week to determine test-retest reliability.

RESULTS

The L test showed excellent test-retest reliability (intraclass correlation coefficient 0.995). The minimum detectable change for the L test time was 1.4 seconds. The L test demonstrated significant positive correlations with the TUG test, timed 360 degree turn test and EDSS score, and significant negative correlations with the 10-MWT and 6-MWT (P < 0.001). Significant differences in the L test times were found between PwMS and healthy controls, and between PwMS with a history of falls and those without a history of falls (P < 0.05). The cut-off time of 14.7 seconds on the L test was found to best discriminate between PwMS and healthy people, while 16.4 seconds was found to best discriminate between PwMS with a history of falls and those without a history of falls.

CONCLUSION

The L test is a reliable and valid tool for the assessment of functional mobility in PwMS.

CLINICAL TRIAL REGISTRATION NUMBER

NCT05641714. CONTRIBUTION OF THE PAPER.

A head-to-head comparison of the effects of aerobic versus resistance training on physical capacity and physical function in people with multiple sclerosis: Results from the MSBOOST trial

BACKGROUND

Exercise is a safe and effective way to improve physical function in people with multiple sclerosis (PWMS).

OBJECTIVES

This study aimed to perform a head-to-head study of the effects of aerobic and resistance training on physical capacity and physical function.

METHODS

A multicentre randomized controlled trial with 150 participants was conducted. Participants were randomized into 12 weeks of either aerobic training (AT; n = 62), resistance training (RT; n = 57), or usual care (UC; n = 31). The primary outcome was physical function (measured as a composite score of the 6-minute walk test and five-time sit-to-stand). Secondary outcomes were aerobic capacity (VO2peak), maximal muscle strength (MVC), and self-reported walking ability.

RESULTS

Participants had a mean age of 45.5 (8.8), an expanded disability status scale (EDSS) of 2.8 (1.5), and 75% were female. Physical function did not increase in AT versus UC 0.08 [-0.16; 0.33] (mean (95% CI)) nor in RT versus UC 0.09 [-0.15; 0.34].VO2peak increased in AT versus UC by 4.1 [2.0; 6.3] mL O2/min/kg and in AT versus RT by 2.7 [1.1; 4.3], but not in RT versus UC 1.4 [-0.6; 3.5]. MVC increased in RT versus UC by 0.25 [0.01; 0.48] Nm/kg, but not in RT versus AT 0.17 [-0.02; 0.36] or AT versus UC 0.08 [-0.16; 0.31]).

CONCLUSION

AT and RT elicited improvements in physical capacity in PWMS. However, these improvements only moderately translated into improvements in physical function.Clinicaltrials.gov (NCT04913012)https://clinicaltrials.gov/study/NCT04913012.

Psychometric measurement properties and reference values of the six-spot step test, the six-minute walk test, the 25-foot walk test, and the 12-item multiple sclerosis walking scale in people with multiple sclerosis

This review investigated the psychometric properties of the most commonly used short-, long-, complex- and patient-reported walking outcome measures in multiple sclerosis(MS): the timed-25-foot walk test (T25FW), the six-minute walk test (6MWT), the six-spot step-test (SSST), and the 12-item MS walking scale (MSWS-12), along with reported reference data of these tests.

METHODS

Based on PubMed and Embase searches, psychometric as well as descriptive data of T25FW, 6MWT, SSST, and MSWS-12 were extracted from studies evaluating persons with MS (pwMS). Descriptive data was also extracted from healthy controls (HC), if reported. Data was displayed as median [IQR].

RESULTS

A total of n=84 studies (N=36.929 pwMS, 64% females, age 49.6 [43;51] yrs; N=3.093 HC, 40.0 [37.5;47.5] yrs) were included. In pwMS, expanded disability status scale (EDSS) was 4.0 [3.0;4.8], patient determined disease scale (PDDS) 2.6 [2.0;3.0], time since diagnosis 11.6 [9.9;13.2] yrs, and MS-phenotypes (RR/SP/PP/unknown) were 68/19/10/3%. PwMS performed substantially worse than HC across all walking capacity outcomes. Weak to strong associations were found for construct validity (r=0.29-0.88, EDSS or PDDS and walking capacity or ability outcomes) and concurrent validity (r=0.16-0.88 between walking capacity and ability, r=0.73-0.95 between walking capacity outcomes). Ecological validity showed weak to moderate associations between daily steps and walking outcomes (r=0.42-0.68). Good to excellent test-retest, intrarater, and interrater reliability were reported across outcomes (ICC=0.71-1.00). Responsiveness was most frequently reported as the minimal-clinically-important-difference, minimal-detectable-change, or as the minimal-important-change (data not shown).

CONCLUSION

Overall the T25FW, 6MWT, SSST, and MSWS-12 demonstrate moderate to excellent psychometric properties (i.e., valid, reliable, and responsive to changes), which make them clinically useful and applicable to research.

Cut-points of the 6-min walk test, the six spot step test, and the timed-25-foot walk test discriminating impaired from non-impaired walking capacity in persons with Multiple sclerosis

Background

Assessing and interpreting walking capacity in persons with Multiple sclerosis (PwMS) is essential in clinical practice and research - and thus for PwMS themselves - yet research evaluating cut-points is limited. The present study aims to establish cut-points for 6-min walk test (6MWT), six spot step test (SSST), and timed 25-foot walk test (T25FWT) in PwMS.

Methods

Classification of PwMS having walking impairments and PwMS having limited or no walking impairments was based on distinct benchmarks for each walking test, as derived from the 12-item Multiple Sclerosis Walking Scale (MSWS-12) on a 5-point Likert scale. Cut-points, area under the curve (AUC), sensitivity (Se), and specificity (Sp) were established using receiver operating characteristic curve analyses.

Results

A total of n = 211 ambulatory PwMS were enrolled (68% females, 54 ± 11 years, patient-determined disease step 2.9 ± 1.9 [range; 0-7], 65.1% relapse-remitting Multiple sclerosis). The following cut-points between the two groups were established: 6MWT (446 m; AUC = 0.82, Se = 0.87, Sp = 0.78), SSST (0.121 rounds/s (corresponding to 8.3 s); AUC = 0.80, Se = 0.84, Sp = 0.75), and T25FWT (1.39 m/s (corresponding to 5.5 s); AUC = 0.79, Se = 0.89, Sp = 0.69).

Conclusion

Cut-points discriminating PwMS having walking impairments vs. PwMS having limited or no walking impairments were identified for 6MWT (446 m), SSST (8.3 s), and T25FWT (5.5 s).

Implications of maximal muscle strength and aerobic capacity for lower extremity physical function in people with multiple sclerosis-a cross-sectional study

Background

Multiple sclerosis (MS) is characterized by impairment of physical function that is often linked to neuromuscular and cardiovascular deficits. However, the specific contributions of muscle strength and aerobic capacity to physical function in MS are not fully understood.

Objective

This study aimed to investigate the independent roles of maximal muscle strength (MVC) and aerobic capacity (VO2peak) on lower extremity physical function, as measured by the 6-minute walk test (6MWT) and five-time sit-to-stand test (5STS) in people with MS (pwMS).

Methods

In a cross-sectional study, 150 pwMS underwent assessment of VO2peak, maximal voluntary contraction (MVC), and physical function (6MWT and 5STS). Regression analyses were conducted to explore the associations between physiological parameters and physical function.

Results

MVC and VO2peak were moderately associated with (i.e., explained) 6MWT (R² = 0.40, p < 0.001), yet with VO2peak (β = 7.9, std. β = 0.45, p < 0.001) having a preferential influence compared to MVC (β = 48.2, std. β = 0.26, p < 0.001). MVC and VO2peak were weakly associated with (i.e., explained) 5STS (R² = 0.14, p < 0.001), yet with MVC (β = 0.06, std. β = 0.28, p = 0.004) having a preferential influence compared to VO2peak (β = 0.00, std. β = 0.16, p = 0.101).

Conclusion

Both maximal muscle strength and aerobic capacity to physical function in pwMS. Maximal muscle strength was preferentially linked to performance in the 5STS test, whereas aerobic capacity was preferentially linked to performance in the 6MWT. These findings support the need for tailored exercise interventions to target specific physiological deficits during MS rehabilitation.

Correction: Outcome measures used in trials on gait rehabilitation in multiple sclerosis: A systematic literature review

[This corrects the article DOI: 10.1371/journal.pone.0257809.].

30-Second Chair Stand and 5-Times Sit-to-Stand Tests Are Interesting Tools for Assessing Disability and Ability to Ambulate among Patients with Multiple Sclerosis

Multiple Sclerosis (MS) is a demyelinating and chronic disease with variable neurological symptoms. There are different scales that score the level of disability, but only few papers have taken into consideration the 5-times sit-to-stand (5STS) test and the 30 s chair stand test (30CST), which are valid and easily obtainable indicators of other neurological diseases. The aim of our research is to verify the validity, reproducibility, and responsiveness of these tests. Patients afflicted with MS were enrolled in the AISM outpatient facility. The inclusion criterion was an EDSS score less than 6.5. We performed the 5STS, 30CST, and timed 25-foot walk (T25-FW) tests and recorded EDSS scores in the first evaluation. Then, we recorded the performance after 5 days (conducted by a second blind operator to ensure test-retest reproducibility), and the last evaluation was made after 12 sessions of physiotherapy. We recruited 38 patients diagnosed with MS. The results show significant data regarding validity, reproducibility, and responsiveness for both scales. The data argue in favor of adding these tests to the relevant clinical assessments. These two tests are simple, reliable, and easy to administer, and the data confirm that they can be included in the evaluation of patients with MS.

The role of sensory systems in the association between balance and walking in people with multiple sclerosis

BACKGROUND

In Multiple Sclerosis, it has been demonstrated that balance is related to performances in walking tasks at different levels of complexity. However, it is unknown how the different sensory systems involved in balance control contribute to walking. This observational study investigates the associations between somatosensory, vestibular, and visual systems and measures of self-reported walking and walking capacity at different complexity levels (i.e. low, medium, and high).

METHODS

People with MS with EDSS<6 were assessed through the Sensory Organization Test (SOT), 12-Item MS Walking Scale (MSWS-12), Timed 25-Foot Walk (T25FW), Timed Up-and-Go Test (TUG), and Six-Spot-Step-Test (SSST). T25FW, TUG and SSST are measures of low, medium and high walking capacity, respectively.

RESULTS

Forty-five PwMS were enrolled (EDSS: 3.4 ± 1.3). Capacity/ability walking measures were moderate-to-highly significantly associated (p < 0.01). Balance measures from SOT showed significant correlation (p < 0.05) between vestibular system and all the walking measures; between visual system and T25FW, SSST and MSWS-12; between the degree to which the patient relies on the visual system to maintain balance with conflicting visual surroundings information (VIS PREF) and T25FW and TUG. In the multivariate analyses, only VIS PREF significantly correlated (p < 0.05) with T25FW (std. Beta=0.42) and TUG (std. Beta=0.38).

CONCLUSIONS

Vestibular and visual systems are associated with walking capacity. However, tasks with higher complexity levels require more visual attention towards ground obstacles, as often seen in real-life activities, whereas simpler walking tasks seem to require visual attention towards the surroundings.

Effects of non-pharmacological interventions on gait and balance of persons with Multiple Sclerosis: A narrative review

BACKGROUND

Multiple Sclerosis (MS) is among the most common reasons for disability in young adults. Mobility impairment, primarily related to gait and balance, is ranked as the preeminent concern among persons with MS (PwMS). Gait and balance dysfunction can directly affect the quality of life and activities of daily life in PwMS, hence the importance of effective treatment strategies. Previous studies have demonstrated the positive effect of various non-pharmacological rehabilitation methods, including physiotherapy and electrical stimulation, on gait and mobility in PwMS. Non-pharmacological methods can be tailored to the individual needs and abilities of each patient, allowing healthcare providers to create personalized training programs. Furthermore, these methods typically result in minimal or no side effects.

PURPOSE

This review provides a comprehensive overview of an array of non-pharmacological treatment approaches aimed at enhancing ambulatory performance in PwMS.

METHODS

We performed a narrative review of the original papers available in PubMed, investigating the effects of different nonmedical approaches on the gait and balance performance of the PwMS. Reviewed treatment approaches include "exercise, physical rehabilitation, dual-task (DT) rehabilitation, robot-assisted rehabilitation, virtual reality-assisted rehabilitation, game training, electrical stimulation devices, auditory stimulation, visual feedback, and shoe insoles".

RESULTS AND CONCLUSIONS

Eighty articles were meticulously reviewed. Our study highlights the positive effects of non-pharmacological interventions on patients' quality of life, reducing disability, fatigue, and muscle spasticity. While some methods, including exercise and physiotherapy, showed substantial promise, further research is needed to evaluate whether visual biofeedback and auditory stimulation are preferable over conventional approaches. Additionally, approaches such as functional electrical stimulation, non-invasive brain stimulation, and shoe insoles demonstrate substantial short-term benefits, prompting further investigation into their long-term effects. Non-pharmacological interventions can serve as a valuable complement to medication-based approaches.

Agreement between video-based clinician-rated tools and patient-reported outcomes on gait assessment in individuals with multiple sclerosis

PURPOSE

To our knowledge, no studies compared the video-clinician-based tools and patient-reported questionnaires in assessing gait and balance in people with MS (pwMS). The present study investigated the correlation and agreement between video-clinician-based objective measurement tools and patient-reported outcome measures (PROMs) in gait and balance evaluation.

METHODS

A prospective cross-sectional study was conducted with 55 pwMS. Video analysis-based gait was evaluated by the Tinetti Gait Assessment (TGA), Gait Assessment and Intervention Tool (GAIT), and Functional Ambulation Classification Scale (FACS) by the clinician. Participants' self-reported gait and balance were assessed with the Multiple Sclerosis Walking Scale-12 (MSWS-12) and Activity-Specific Balance Confidence Scale (ABC).

RESULTS

There was a moderate positive correlation between ABC with TGA and FACS (r1: 0.552, r2: 0.510, p < 0.001). ABC was strongly correlated with GAIT (r: - 0.652, p < 0.001). A moderate positive correlation was observed between MSWS-12 with TGA and FACS (r1: - 0.575, r2: - 0.524, p < 0.001). In addition, there was a strong positive correlation between MSWS-12 and GAIT (r: - 0.652, p < 0.001). Clinician-rated tools and PROMs were within the agreement limits regarding the unstandardized beta values p < 0.001).

CONCLUSIONS

Clinician-based gait and balance tools demonstrate consistent results with PROMs in pwMS. Considering the low cost and practical use of PROMs, in cases where video-based clinician-based measurements cannot be provided (time, space, and technical inadequacies), questionnaires can provide concordant results at moderate and severe levels compared with objective tools.

The six spot step test is superior in detecting walking capacity impairments compared to short- and long-distance walk tests in persons with multiple sclerosis

Background

Walking capacity is important not only to persons with multiple sclerosis but also to clinical practice and research. The present study aims to compare the extent of impairments (relative to healthy controls) across three commonly used walking capacity outcomes in persons with multiple sclerosis.

Methods

In a two-hospital cross-sectional study, walking capacity was assessed using the timed-25-footwalk-test (timed 25-ft walk test; 'walking speed'), the six-minute-walk-test ('walking endurance') and the six-spot-step-test ('walking balance and coordination'). Data were compared to normative reference data in healthy controls.

Results

A total of 228 persons with multiple sclerosis (68% females) were involved in the study: age 53.7 ± 11.6 y (range 26-81 y); patient-determined-disease-steps 3 [IQR; 1; 4] (range 0-7); time since diagnosis 12.6 ± 9.9 y (range 0-49 y); MS-phenotype (relapse remitting MS, secondary progressive MS, primary progressive MS) 146/39/41; and co-morbidity n = 80 (35%). Compared to healthy controls, deficits were observed across all walking capacity outcomes (p < 0.001): timed 25-foot walk test -26 [-30; -23]%, 6 minute-walk-test -36 [-39; -32]% and six-spot-step-test -44 [-47; -40]%. Deficits differed across walking capacity outcomes (p < 0.001).

Conclusion

Altogether, persons with multiple sclerosis performed substantially worse than healthy controls across all three walking capacity outcomes. The results showed that the six-spot-step-test was superior to the timed 25-foot walk test and the 6 minute-walk-test in detecting walking capacity impairments in persons with multiple sclerosis.

High intensity exercise training on functional outcomes in persons with multiple sclerosis: A systematic review

BACKGROUND

There is growing interest and evidence for high intensity training (HIT) in clinical populations, including persons with multiple sclerosis (MS). While HIT has been shown to be a safe modality in this group, it is still unclear what collective knowledge exists for HIT on functional outcomes. This study examined HIT modalities (e.g., aerobic, resistance, functional training) on functional outcomes such as walking, balance, postural control, and mobility in persons with MS.

METHODS

High intensity training studies, including RCTs and non-RCTs, that targeted functional outcomes in persons with MS were included in the review. A literature search was conducted in MEDLINE, EMBASE, PsycINFO, SPORTSDiscus, and CINAHL in April 2022. Other literature search methods were performed via website and citation searching. The methodological quality of included studies was assessed by TESTEX for RCTs and ROBINS-I for non-RCTs. This review synthesized the following data: study design and characteristics, participant characteristics, intervention characteristics, outcome measures, and effect sizes.

RESULTS

Thirteen studies (6 RCTs and 7 non-RCTs) were included in the systematic review. The included participants (N = 375) had varying functional levels (EDSS range: 0-6.5) and phenotypes (relapsing remitting, secondary progressive, primary progressive). HIT modalities involving high intensity aerobic training (n = 4), high intensity resistance training (n = 7), and high intensity functional training (n = 2), revealed a significant and consistent benefit on walking speed and walking endurance in response to HIT, while the evidence regarding balance and mobility improvement was less clear.

CONCLUSION

Persons with MS can successfully tolerate and adhere to HIT. While HIT appears to be an effective modality for improving some functional outcomes, the heterogeneous testing protocols, HIT modalities, and exercise doses among the studies preclude any conclusive evidence for its effectiveness thus necessitating future inquiry.

Patient and Clinician Perspectives of Physical Therapy for Walking Difficulties in Multiple Sclerosis

Gait speed is frequently the primary efficacy endpoint in clinical trials of interventions targeting mobility in people with multiple sclerosis (MS). However, it is unclear whether increased gait speed is a meaningful outcome for people living with MS. The purpose of this study was to identify the most important aspects of mobility for people with MS and physical therapists and to explore how patients and clinicians perceive whether physical therapy has been effective. Forty-six people with MS and 23 physical therapy clinicians participated in a focus group, one-on-one interview, or electronic survey. The focus group and interview data were transcribed and coded to identify themes. Free-text survey responses were also coded, and multiple-choice options were analyzed for frequency. Among people with MS, falls and difficulties getting out into the community were identified as highly important mobility limitations. Clinicians also identified falls and safety as a priority. Walking speed was infrequently described as a problem, and although gait speed is often measured by clinicians, improving gait speed is rarely a treatment goal. Despite their emphasis on safety, clinicians lacked certainty about how to objectively measure improvements in safety. People with MS evaluated physical therapy effectiveness based on the ease by which they can do things and acknowledged that "not getting worse" is a positive outcome. Clinicians evaluated effectiveness based on the amount of change in objective outcome measures and by patient and caregiver reports of improved function. These findings indicate that gait speed is not of major importance to people with MS or physical therapy clinicians. People with MS want to be able to walk further and without an assistive device, and they want to avoid falls. Clinicians want to maximize safety while improving functional ability. Clinicians and patients may differ in their expected outcomes from physical therapy.

The reliability and validity of the Figure of 8 walk test in mildly disabled persons with multiple sclerosis

BACKGROUND

Figure of 8 Walk Test (F8WT) assesses the multidirectional and adaptive requirements of both straight and curved path walking. The study aimed to examine the reliability, validity, and minimal detectable change (MDC) of the F8WT in patients with Multiple Sclerosis (pwMS).

METHODS

45 mildly disabled pwMS (10 male, 35 female) were included in the study. Reliability of F8WT test was evaluated with Intraclass Correlation Coefficient (ICC). MDC estimates were calculated using baseline data. The correlation between the F8WT and Berg Balance Scale (BBS), The Timed Up and Go test (TUG), The Timed 25-Foot Walk Test (T25FW), The Four Square Step Test (FSST) was used for the validity.

RESULTS

The intra-rater (ICC 0.980-0.983) and inter-rater (ICC 0.976-0.985) reliability of the F8WT was determined to be excellent. MDC values for intra-rater were 1.04-1.08 s, and MDC values for inter-rater were 1.16-0.99 s. The correlation with F8WT and BBS (p = 0.000, r = -0.702), TUG (p = 0.000, r = 0.854), T25FW (p = 0.000, r = 0.784), FSST (p = 0.000, r = 0.748) was found to be statistically significant.

CONCLUSION

The F8WT has good reliability and validity in mildly disabled pwMS. According to the MDC results, small differences in pwMS can be adequately detected with F8WT. Therefore, it may be a clinically suitable test for detecting balance and walking.