Test-retest reliability, convergent validity and cross-cultural adaptation of Turkish version of the Hand10 questionnaire.

BACKGROUND: The Hand10 Questionnaire is composed of 10 short, easy to understand and illustrated questions and was developed to measure upper extremity disorders. Thanks to these features, unlike other questionnaires that assess upper extremity disorders, it can be used in the elderly and children as well as adults. The aim of this study was to cross-culturally adapt the Hand10 into Turkish and to test its reliability and validity. METHODS: Translation and back-translation of the Hand10 were performed according to Beaton guidelines. Patients completed the Disabilities of the Arm, Shoulder and Hand Questionnaire once and the final version of the Hand10 Questionnaire twice, with 7-days interval. Test-retest reliability and internal consistency were determined using Intraclass Correlation Coefficient analysis and Cronbach's alpha, respectively. Convergent validity of Hand10 was determined with Disabilities of the Arm, Shoulder and Hand Questionnaire using Pearson Correlation Coefficient analysis. RESULTS: One hundred patients participated in the study. Cronbach's alpha value was 0.919, indicating an excellent internal consistency. Intraclass Correlation Coefficient value for test-retest reliability were found to be 0.890 that indicates a high reliability. Hand10 showed very good correlation with Disabilities of the Arm, Shoulder and Hand Questionnaire (r: 0.669). CONCLUSIONS: The Turkish version of the Hand10 met set criteria of reliability and validity. As a result of this study, we determined that Hand10 is a useful instrument to measure upper extremity disorders in Turkish-speaking patients. It is recommended to be used in clinical settings and researches.

Association of Core Muscle Endurance Times With Balance, Fatigue, Physical Activity Level, and Kyphosis Angle in Patients With Ankylosing Spondylitis.

BACKGROUND/OBJECTIVE: Core muscle endurance (CME), which is the ability of sustaining the activity of trunk muscles, has been shown to be lower in patients with ankylosing spondylitis (AS). The aim was to investigate the possible relationship between CME times and balance, fatigue, physical activity (PA) level, and thoracic kyphosis angle. METHODS: Fifty-one patients with AS with a mean age of 41.0 years (interquartile range, 25/75 years; 29.0/51.0 years) were included in the study. Core muscle endurance times were assessed by using trunk extension, trunk flexion, and side bridge tests. Overall stability index, anteroposterior stability index, mediolateral stability index, and limits of stability were evaluated with the Biodex Balance System. Fatigue and PA levels were surveyed using Fatigue Severity Scale and International Physical Activity Questionnaire, respectively. Thoracic kyphosis angle was measured by using a digital inclinometer. Additionally, CME times were compared for "high-fatigue" versus "low-fatigue" and as "low PA" versus "moderate/high PA" groups. Spearman correlation coefficients and Mann-Whitney U test were used for statistical analysis. RESULTS: Significant correlations were detected between overall stability index, anteroposterior stability index, Fatigue Severity Scale, International Physical Activity Questionnaire, and all CME tests (p < 0.05) and between mediolateral stability index and side bridge test (p < 0.05). Limits of stability correlated only with side bridge test (p < 0.05). Core muscle endurance significantly differed between high-fatigue and low-fatigue groups (p < 0.05), except trunk flexor test (p > 0.05). No significant differences were observed between low PA and moderate/high PA groups (p > 0.05), except side bridge test (p < 0.05). CONCLUSIONS: Core muscle endurance times seem to be related to PA level, fatigue, and balance but not with thoracic kyphosis angle. Assessing CME in patients with AS might help in planning individualized exercise programs.

Test-retest reliability and validity of the 6 minute stepper test to evaluate functional exercise capacity in patients with ankylosing spondylitis.

OBJECTIVES: The 6-minute stepper test (6MST) is a submaximal test that requires little space to assess exercise capacity compared to the 6-minute walk test (6MWT). The study aims to investigate the test-retest reliability and convergent validity of 6MST and to compare physiological responses, dyspnea, fatigue perception with 6MST and 6MWT in patients with ankylosing spondylitis (AS). METHODS: To test the convergent validity of 6MST, 65 patients performed both 6MWT and 6MST on the first day and correlation between two tests were assessed with Pearson correlation test. In order to investigate the test-retest reliability of the 6MST, 32 of the 65 patients performed 6MST one week later and intraclass correlation coefficients (ICC) were calculated. Dyspnea and fatigue perception were analyzed with using Wilcoxon signed-rank test, physiological responses were analyzed using paired sample t-test. RESULTS: Excellent test-retest reliability was observed for 6MST (ICC: 0.988). There was a significant correlation between 6MST and 6MWT (r: 0.725, p < 0.001). Dyspnea and leg fatigue perception were significantly higher in 6MST (p < 0.05). Physiological responses and fatigue perception were similar in both 6MST and 6MWT (p > 0.05). CONCLUSION: This study demonstrated that the 6MST is reliable and valid method to evaluate exercise capacity in patients with AS. 6MST can be used to evaluate exercise capacity of patients with AS.

Decreased exercise capacity, strength, physical activity level and quality of life in adult patients with familial Mediterranean fever

Background: Familial Mediterranean fever (FMF) is a systemic autoinflammatory disease that causes recurrent attacks of fever, polyserositis, arthritis or skin eruptions, resulting in pain in the abdomen, muscles, joints and chest. All of these might lead to a reduction in exercise capacity, muscle strength, physical activity level (PAL) and quality of life (QoL). Therefore, assesment of these parameters are important. The aim of this study was to assess exercise capacity, muscle strength, PAL, and QoL in patients with FMF as compared to controls. Materials and methods: A total of 40 subjects with FMF and 36 healthy control subjects participated in the study. The 6-minute walk test (6MWT) was used to assess exercise capacity. Muscle strength measurements for shoulder flexors, extensors and abductors, hip flexors, extensors and abductors, knee flexors and extensors, and ankle dorsiflexors were evaluated by hand-held dynamometer. PAL was assessed using the International Physical Activity Questionnaire-Short Form (IPAQ-SF). QoL was investigated by Nottingham Health Profile (NHP). Results: Significant differences were found between patients and healthy subjects for 6MWT (p = 0.003), muscle strength of ankle dorsiflexors (p = 0.001), hip flexors (p = 0.047), extensors (p = 0.003) and abductors (p = 0.004), total scores of IPAQ-SF (p = 0.004), and pain (p < 0.001), physical mobility (p < 0.001) and energy level (p = 0.026) subscales of NHP. However, there were no significant differences between groups for the shoulder flexion (p = 0.089), extension (p = 0.440) and abduction (p = 0.232), hand grip strength (p = 0.160) , and knee flexion (p = 0.744) and extension (p = 0.155) muscle strength and emotional reaction (p = 0.088), sleep (p = 0.070) and social isolation (p = 0.086) subsets of NHP. Conclusion: Subjects with FMF demonstrated lower exercise capacity, muscle strength, PAL and QoL than healthy peers. Therefore, it is important to evaluate and improve these parameters in patients with FMF.

Validity and reliability study of the Turkish version of the Hand20 questionnaire

Background/aim: This study aimed to translate and validate the Turkish version of the Hand20 questionnaire. Materials and methods: Patients who had upper extremity involvement and stable symptoms for the previous 4 weeks in their upper extremities were included in the study. Patients who were illiterate or used a splint during the day were excluded from the study. Participants completed the Turkish version of the Disabilities of the Arm, Shoulder, and Hand (DASH-T) questionnaire once and the final version of the Hand20 questionnaire twice in a 7-day interval. Internal consistency and reliability of the questionnaire was assessed. Moreover, correlations between Hand20 and DASH-T scores were analyzed using Spearman's correlation coefficient. Results: A total of 104 patients participated in the study. The Turkish version of the Hand20 met the set criteria of reliability and validity. Internal consistency (Cronbach's alpha = 0.93) and test-retest reliability were excellent (r = 0.82). Hand20 showed a positive and statistically significant correlation with DASH-T (r = 0.76, P < 0.001). Conclusion: The results showed that the Turkish version of the Hand20 had excellent test-retest reliability and validity. As a result of this study, it was determined that Hand20 was a valid and reliable instrument to measure the upper extremity disabilities of Turkish-speaking patients.

Validity and reliability of the Turkish version of the Cold Intolerance Symptom Severity Questionnaire

Background/aim: The aim of this study was to determine validity and reliability of the Turkish version of the Cold Intolerance Symptom Severity (CISS-T) Questionnaire. Materials and methods: The translation and back translation steps of the study were based on the Beaton guidelines. Sixty-eight patients between 18 and 65 years old with cold intolerance after amputation, replantation, multiple crush syndrome, and peripheral nerve injury were included in the study. Patients completed the Disabilities of the Arm, Shoulder, and Hand Questionnaire (DASH), the SF-36 Quality of Life Questionnaire, and the single questions assessing the cold sensitivity and cold intolerance once and the final version of the CISS-T twice with a 7-day interval. Results: The internal consistency (Cronbach α = 0.844) and test-retest reliability (r = 0.938) of CISS-T were assessed and both were considerably high. Also, the correlations between the scores of the CISS-T, DASH-T, SF-36-T, and the single questions were analyzed by Spearman's correlation coefficient. The CISS-T showed an excellent correlation with the single questions (rho = 0.8 and 0.877), a good and negative correlation with the pain subscale of the SF-36 (rho = 0.617), and a moderate correlation with the DASH-T (rho = 0.592). Conclusion: As a result, the CISS-T is a valid and reliable instrument to assess the severity of cold intolerance.

Hand functions in systemic lupus erythematosus: a comparative study with rheumatoid arthritis patients and healthy subjects

Background/aim: Systemic lupus erythematosus (SLE) frequently affects the small joints of the hand and may result in difficulty in activities of daily living. There are very few studies evaluating the problems encountered in the hands in patients with SLE. The aim of this study is to evaluate hand functions in patients with SLE and compare them with rheumatoid arthritis (RA) patients and healthy subjects. Materials and methods: A total 46 female patients meeting the SLE classification criteria were recruited. Similarly, 51 female RA patients and 46 healthy female subjects served as the control groups. To assess the upper extremity disability level, the Disability Arm Shoulder and Hand Questionnaire (DASH) was used. Some functional performances such as hand grip and pinch strength were evaluated using a dynamometer and the Nine Hole Peg Test (NHPT), respectively. Results: Hand functions were found to be impaired in both SLE and RA patients when compared to healthy controls. In addition, patients with SLE showed better performance in the NHPT, hand grip, and pinch strength than RA patients (P < 0.05). However, the patient-reported disability level was similar in both patient groups (P > 0.05). Conclusion: Similar to patients with RA, hand functions are significantly impaired in patients with SLE in daily activities.

Investigation of sensory and motor functions of wrist in patients with rheumatoid arthritis.

BACKGROUND: Rheumatoid arthritis (RA) is a systemic and autoimmune disease that affects many tissues and organs in the body, especially the synovial joint and periarticular structures. One of the most affected joints is the hand joints, and there is also involvement in the wrist joint. OBJECTIVES: The purpose of this study was to assess the sensory and motor functions of the wrist with a gold standard method and to determine the relationship between the motor and sensory functions of the wrist and wrist-related pain/disability level and hand grip strength in patients with RA. METHOD: Flexor and extensor muscle strength and joint position sense of the wrist were evaluated using isokinetic dynamometer, hand grip strength was measured using dynamometer, and wrist related pain and disability was assessed by Patient Rated Wrist Evaluation (PRWE) questionnaire. RESULTS: Thirty-one patients with RA and 31 healthy controls were included in the study. Control group had better results regarding wrist flexor and extensor muscle strength and wrist joint position sense than RA patients for both hands/wrists. A positive and strong correlation and a negative and weak correlation were found between muscle strength and joint position sense of the wrist and hand grip strength, respectively. CONCLUSIONS: Compared to healthy subjects, RA patients showed wrist-related sensorimotor deficits. Therefore, evaluation of the wrist should not be ignored in the examination of patients with RA. In addition, when planning the treatment program of the patients, not only hand exercises but also exercises involving the wrist should be taken into consideration.

Vascular calcification in Takayasu arteritis: relationship with metabolic syndrome, left ventricular mass index, and intima-media thickness.

OBJECTIVE: The present study aims to determine the frequency of vascular calcification in Takayasu arteritis (TA) and the risk factors for it and to evaluate its relation with atherosclerotic predictors such as metabolic syndrome (MS), left ventricular mass index (LVMI) and carotid intima-media thickness (CIMT). METHODS: A cross-sectional study was conducted in patients with TA; MS was defined according to the US National Cholesterol Education Program/Adult Treatment Panel III (NCEP/ATP III) criteria. The study included 49 TA patients (22 with MS, 27 without MS) and 31 healthy controls (HCs). Non-contrast computed tomography measured calcification in coronary arteries, aorta, and branches. RESULTS: Forty-seven patients (95.9%) were female and mean age was 33.45 ± 8.53 years. Total calcification score (mean ± SD; 5223.9 ± 18041.1 AU vs. 35.87 ± 72.70 AU (p = 0.05)), CIMT, and LVMI were found to be significantly higher in TA patients than HCs (p < 0.05). While there was no significant difference between the total calcification score of MS (+) TA patients and MS (-) TA patients, in both patient groups, the total calcification score was found to be significantly higher than HCs. MS (+) and MS (-) groups were found to have significantly higher CIMT and LVMI values than the control group, in addition, MS (+) patients were found to have significantly higher LVMI and CIMT values than MS (-) group (p < 0.05). CONCLUSION: Vascular calcification, CIMT, and LVMI are elevated in all TA patients, with greater impact in the presence of MS.

The quality of physiotherapy and rehabilitation program and the effect of telerehabilitation on patients with knee osteoarthritis.

OBJECTIVE: To compare the effects of telerehabilitation vs home-based exercise programs for knee osteoarthritis (KOA). METHOD: Patients diagnosed with moderate/mild KOA were enrolled in the study and randomized into two groups. The patients in the telerehabilitation group did their exercises via video conference simultaneously, accompanied by a physiotherapist, while the patients in the control group were given a brochure showing how to do the exercises and explaining how to do each exercise. Patients completed 30-s chair stand test (30 CST), Knee Injury and Osteoarthritis Outcome Score (KOOS), Numeric Rating Scale (NRS), International Physical Activity Questionnaire Short Form (IPAQ-SF), Hospital Anxiety and Depression Scale (HADS), TAMPA Kinesiophobia Scale (TKS), Fatigue Severity Scale (FSS) twice before and after 8-week treatment, and Quality Indicators Questionnaire for Physiotherapy Management of Hip and Knee Osteoarthritis (QUIPA) and Exercise Adherence Rating Scale (EARS) after treatment only. Moreover, the number of painkillers that patients used in the last 15 days was recorded before and after treatment, and patient satisfaction with treatment was questioned after treatment. RESULTS: Forty-eight patients were included in the study. The mean age of patients was 55.83 ± 6.93 years, and 43 (89.6%) patients were women. No significant differences were determined between groups in terms of baseline characteristics. After the 8-week follow-up, telerehabilitation group demonstrated better 30 CST, IPAQ-SF, KOOS, QUIPA, treatment satisfaction, and total and C subscale of EARS scores increment and greater NRS, HADS, TKS, and FSS score reduction than the control group. It was determined that there was a statistically significant difference between the telerehabilitation and control groups for all of the specified parameters; however, no statistically significant difference was found for the B subscale of EARS. CONCLUSION: This study indicated that telerehabilitation is superior to self-management. Moreover, through this innovative and population specific web-based approach for KOA, a vast number of patients who have internet access could be reached. Thus, patients with KOA received effective treatment.

Validation of Turkish version of the Cochin 17-item Scleroderma Functional scale.

INTRODUCTION: The Cochin 17-item Scleroderma Functional (CSF-17) Scale is a patient-reported outcome measure evaluating activities and participation in patients with systemic sclerosis (SSc). OBJECTIVE: The aim of the present study was to translate and cross-culturally adapt the CSF-17 into the Turkish language and investigate its convergent validity and reliability in Turkish-speaking patients with SSc. METHODS: The CSF-17 was cross-culturally adapted according to Beaton's guideline. Participants completed CSF-17 Scale, Scleroderma Health Assessment Questionnaire (SHAQ), Short Form-12 (SF-12) Health Survey and Hospital Anxiety and Depression Scale (HADS). Internal consistency and test-retest reliability were determined interpreting Cronbach's alpha and Intraclass Correlation Coefficient (ICC) values, respectively. Convergent validity was tested using Pearson's correlation coefficient. RESULTS: Fifty-six patients with SSc were enrolled in the study. Cronbach's alpha and ICC values of the CSF-17 total score were found to be as 0.963 and 0.958, respectively, indicating excellent reliability. As for the convergent validity, it was determined that CSF-17 total score has a good correlation with SHAQ. Correlations of subscales of CSF-17 with subscales of SF-12 and HADS ranged from poor to moderate. CONCLUSION: Turkish version of CSF-17 met the set criteria of reliability and convergent validity. According to the results of the analysis, it was concluded that the Turkish version of the CSF-17 is a reliable and valid tool for Turkish-speaking SSc patients.

Systemic Sclerosis Quality of Life Questionnaire (SScQoL): translation into Turkish and assessing its psychometric properties.

BACKGROUND: Systemic sclerosis (SSc) is a chronic autoimmune disease that affects the connective tissues and leads to physical, emotional, and social challenges for patients. Evaluating health-related quality of life (HRQoL) with a disease-specific tool may be preferable for improving patient care and treatment outcomes. The aim of this study was to translate the Systemic Sclerosis Quality of Life Questionnaire (SScQoL) into Turkish and to investigate its psychometric properties. METHODS: Eighty-six patients with SSc (mean age 51.8 ± 11.7 years, 80 females) participated in the study. Convergent validity was explored by correlation analyses between Turkish SScQoL and Short-Form 36 (SF-36), European Quality of Life Survey-5 Dimensions (EQ-5D), EQ-5D Visual Analog Scale (EQ-VAS), and Scleroderma Health Assessment Questionnaire (SHAQ). Cronbach's alpha was calculated to test internal consistency. Turkish SScQoL was readministered after 7-14 days to fifty-eight patients for determining test re-test reliability. Intraclass correlation coefficients in 95% confidence interval (ICCs [95%CI]) were calculated to examine the agreement between two assessments. Values greater than 15% and an absolute skewness value < 1 were recognized as the presence of a floor or ceiling effect. RESULTS: SScQoL correlated significantly with SF-36 subdomains (r = -0.347 to -0.618, p < 0.01), EQ-5D (r = -0.535, p < 0.01), EQ-VAS (r = -0.636, p < 0.01), and SHAQ global score (r = 0.521, p < 0.01). SScQoL demonstrated excellent internal consistency (Cronbach's alpha = 0.917), and good to excellent test-retest reliability (ICC [95%CI] = 0.85 [0.76-0.91]). No floor/ceiling effects were observed. CONCLUSION: The Turkish version of SScQoL seems to have adequate psychometric properties and can be used to evaluate HRQoL in clinical and research settings. Key points • Turkish version of SScQoL is a valid and reliable tool for measuring health-related quality of life of patients with systemic sclerosis. • SScQoL is the only diseases-specific quality of life measurement for systemic sclerosis available in Turkish. • Patients with limited and diffuse SSc seem to be similar in terms of self-reported health-related quality of life.

Translation, validation and cross-cultural adaptation of the mouth handicap in systemic sclerosis questionnaire into the Turkish language.

AIM: The aim of this study was to translate and adapt the Mouth Handicap in Systemic Sclerosis (MHISS) Questionnaire into the Turkish language and evaluate its validity and reliability in Turkish systemic sclerosis (SSc) patients. METHOD: The MHISS was translated according to Beaton guidelines. Patients being diagnosed with SSc, being between 18-65 years old and receiving no treatment between test-retest assessments were included to study. Test-retest reliability was evaluated, comparing the results of two administrations, with Spearman's correlation. Internal consistency was assessed by Cronbach's α. Validity of the questionnaire was assessed by comparison with mouth opening, total scores of Disabilities of Arm, Shoulder and Hand Questionnaire (DASH) and Health Assessment Questionnaire (HAQ). Construct validity was tested by factor analysis. RESULTS: Forty-five SSc patients were included in the study. The Turkish version of the MHISS (MHISS-T) met set criteria of reliability and validity. Internal consistency (Cronbach's α = 0.863) and test-retest reliability were excellent (r = .88). The correlations between MHISS-T and inter-incisor distance, MHISS-T and HAQ and MHISS-T and DASH were negatively and statistically significant (r = -0.739, P < .001), very good and statistically significant (r = .664, P < .001), good and statistically significant (r = .570, P < .001), respectively. Regarding factor analysis, MHISS-T has three subscales. CONCLUSION: Our results demonstrated that the Turkish version of the MHISS-T has excellent test-retest reliability and very good validity. As a result of this study we determined that MHISS-T is a valid and reliable instrument to measure mouth disabilities in Turkish-speaking SSc patients.

Inter-rater reliability of modified hand mobility in scleroderma test.

AIM: Systemic sclerosis (SSc) is a chronic autoimmune disease of unknown etiology characterized by excessive collagen production, endothelial cell injury, microvascular obliteration, cutaneous fibrosis and progressive visceral disease. The hands are frequently involved during the progression of the disease, with symmetrical skin thickening as a prominent feature. Modified hand mobility in scleroderma (mHAMIS) test is a measurement method to assess hand mobility in patients with SSc. Knowing the inter-rater reliability of the instrument is important in order for the results from different examiners to be accurately interpreted. The aim of this study was to test inter-rater reliability of the mHAMIS test. METHOD: Hand mobility for both hands was assessed in 25 female patients with SSc by 2 physiotherapists who have different years of experience. Patients who had flexion contracture in at least 1 finger and undergone hand surgery in the last year due to any injuries, were excluded from the study since hand mobility was prevented. Inter-rater reliability was determined using intra-class correlation coefficients (ICCs). RESULT: The ICCs were excellent between raters for dominant and non-dominant hands. The values were 0.92 and 0.93, respectively. CONCLUSION: The inter-rater reliability of the mHAMIS was found to be excellent. This research contributes to the literature by proving that the test can be used without causing bias in clinical trials.