Interrater Reliability of Activity Questionnaires After an Intensive Motor-Skill Learning Intervention for Children With Cerebral Palsy.

OBJECTIVE: To investigate the reliability of parents-reported activity questionnaires after a motor-skill learning intervention for children with cerebral palsy (CP). We hypothesize that the intervention process might influence parental judgment. DESIGN: Double-blind randomized trial. SETTING: Conventional therapy was delivered in the usual context while intensive intervention was provided at the Catholic University of Louvain. PARTICIPANTS: Children with CP (N=41; age range 5-18y, Gross Motor Function Classification System I-IV) were randomized to a control group (CG) (n=21, 2 dropouts) receiving conventional therapy or an intervention group (IG) (n=20) receiving hand-arm bimanual intensive therapy-including lower extremities (HABIT-ILE). INTERVENTIONS: Conventional therapy (mostly neurodevelopmental) was delivered as ongoing treatment (1-5 times/wk). HABIT-ILE, based on motor-skill learning, was delivered over 2 weeks. All children were assessed at T1 (baseline), T2 (3wk after baseline) and T3 (4mo after baseline). MAIN OUTCOMES MEASURES: ABILHAND-Kids and ACTIVLIM-CP questionnaires rated by parents (perception) and 2 examiners (videotapes). RESULTS: Agreement (level/range) between examiners was systematically almost perfect (P≤.001). At baseline, moderate to almost perfect agreement (level/range) was observed between parents and examiners (P≤.001). At T2 and T3, a similar agreement (level/range) was observed for the CG. For the IG, a similar level of agreement was observed, but the range of agreement varied from poor to almost perfect (P≤.001), with parents estimating higher performance measures compared to examiners after intervention. Higher performance was associated with higher satisfaction scores of the child's functional goals at T3. CONCLUSION: Parents and examiners have a similar perception of the child's performance at baseline and during conventional therapy. Their perceptions are less congruent after a motor-skill learning intervention, probably due to the goal-oriented process of the intervention. Therefore, our results favor the use of blind observations of home-videotaped items after intensive motor-skill learning interventions.

Responsiveness of the ACTIVLIM-CP questionnaire: measuring global activity performance in children with cerebral palsy.

AIM: To investigate the responsiveness of the ACTIVLIM-CP questionnaire after two evidence-based interventions for children with cerebral palsy (CP). METHOD: Seventy-five children with CP either participated in an intensive motor-skill learning intervention (hand-arm bimanual intensive therapy including lower extremities [HABIT-ILE], n=47) or received botulinum neurotoxin-A (BoNT-A) injection(s) into lower extremities combined with conventional physical therapy (n=28). All children were assessed three times: at baseline (T0 ; before HABIT-ILE/the day of BoNT-A injection), at T1 (last day of HABIT-ILE/6wks after BoNT-A injection), and at follow-up (T2 ; 3-4mo after the beginning of intervention). Parents completed ACTIVLIM-CP and three other activity questionnaires. Responsiveness was analysed using group (based on intervention), subgroup (based on gross motor function level), and individual approaches. RESULTS: For the HABIT-ILE group, significant improvements in ACTIVLIM-CP were observed for the T0 -T1 period (p<0.001) but not for the T1 -T2 period. No significant changes were found in the BoNT-A group during assessments (p=0.84). In the subgroup analysis for the HABIT-ILE group (T0 -T1 ), greater changes were demonstrated for children in Gross Motor Function Classification System levels III and IV (p<0.001, effect size=1.36). The individual approach was congruent with the group approach. INTERPRETATION: ACTIVLIM-CP demonstrated high responsiveness after HABIT-ILE, showing that this scale may be used to investigate global activity performance in clinical trials focusing on improving daily life activities. WHAT THIS PAPER ADDS: Good responsiveness of ACTIVLIM-CP questionnaire during intensive motor-skill learning intervention. Higher responsiveness for children in Gross Motor Function Classification System (GMFCS) levels III and IV versus I and II after intensive intervention. ACTIVLIM-CP is useful to identify children improving their performance after botulinum neurotoxin-A injection.

Measuring changes of manual ability with ABILHAND-Kids following intensive training for children with unilateral cerebral palsy.

AIM: ABILHAND-Kids is a parent-reported questionnaire measuring manual ability in children with cerebral palsy (CP). Its psychometric properties have been established, with the exception of responsiveness, which is examined here. METHOD: In this cohort study, 98 children (46 males, 52 females; range 6-19y, mean 11y, standard deviation [SD] 3.3y) with unilateral CP underwent three assessments of upper extremity function: at baseline (T1); after 80 to 90 hours of intensive training (T2); and at follow-up (T3). The responsiveness was analyzed using global, group (based on age and on Manual Ability Classification System [MACS] level), and individual approaches during two time periods (T1-T2 and T2-T3). Effect size was used to quantify magnitude of changes. RESULTS: The global approach showed significant improvements between T1 and T2 (p<0.001) but not between T2 and T3 (p=0.222). In the group analyses, effect size and SRM demonstrated large changes in younger children (6-12y, n=52, mean change=1.06 logit, effect size >0.8) and small changes in the older children (13-19y, n=46, mean change=0.71 logit, effect size >0.4). Children in MACS level II demonstrated larger changes than children in MACS level I or III. INTERPRETATION: The ABILHAND-Kids exhibited responsiveness in detecting changes after intensive training. Therefore, this scale is potentially useful in assessing the functional status of children with unilateral CP in clinical trials.

Measuring global activity performance in children with cerebral palsy in West Africa: validation of an adapted version of the ACTIVLIM-CP questionnaire.

PURPOSE: To calibrate a West-African version of the ACTIVLIM-CP questionnaire (ACTIVLIM-CP-WA) for children with cerebral palsy (CP). MATERIALS AND METHODS: We recruited 287 children with CP of various age range: 2-6 years (n = 117, preschoolers), 6-12 years (n = 96, children) and 12-19 years (n = 74, adolescents). Caregivers of children of each age range completed the experimental version of the ACTIVLIM-CP-WA including 76 (preschoolers), 78 (children) and 76 (adolescents) global daily life activities. Responses were analyzed using the Rasch RUMM2030 software. RESULTS: The final West-African version of ACTIVLIM-CP including 31 items (both common and age-specific items) defined a unidimensional, linear scale with well-discriminated response categories. It presented a high internal consistency (R = 0.94). Moreover, all items were locally independent and the item difficulty hierarchy was invariant regarding caregivers' education, children's age and gender, MACS and GMFCS levels. The ACTIVLIM-CP-WA measures were significantly correlated (p < 0.05) with Gross Motor Function Classification System (ρ = -0.77), Manual Ability Classification System (ρ = -0.75), Box and Block test (dominant hand r = 0.51; non-dominant hand r = 0.49), One-minute walking test (r = 0.28), and Timed up and Go test (r = -0.40). CONCLUSIONS: The ACTIVLIM-CP-WA questionnaire provides a valid and reliable tool that has the potential to follow children's evolution and quantify changes consecutive to neurorehabilitation in Sub-Saharan Africa.IMPLICATIONS FOR REHABILITATIONThe West-African version of the ACTIVLIM-CP questionnaire (ACTIVLIM-CP-WA) measures global activities requiring a combination of lower and upper extremities in children with cerebral palsy.As a Rasch-built scale, measures are unidimensional and linear to document changes in children with cerebral palsy from 2 to 19 years in Sub-Saharan Africa.Rehabilitation professionals are encouraged to use the ACTIVLIM-CP-WA questionnaire as a psychometrically robust assessment tool measuring the global performance in daily life activities in children with cerebral palsy in Sub-Saharan Africa.

Satisfaction with activity and participation and its relationships with body functions, activities, or environmental factors in stroke patients.

OBJECTIVES: To report the body functions, activities, and participation of stroke patients, and to investigate the relationships over time with the patients' perceived satisfaction with their level of activity and participation. DESIGN: Descriptive. SETTING: Hospital, home. PARTICIPANTS: Stroke patients (N = 45; mean age ± SD, 69 ± 10.7y) assessed by the same examiner. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The Stroke Impairment Assessment Set was used to measure body functions, the Mini-Mental State Examination was used to measure cognitive level, and the Depression subscale of the Hospital Anxiety and Depression Scale was used to measure mood level. The ABILHAND and ABILOCO scales were used to measure activity, and the SATIS-Stroke questionnaire was used to measure satisfaction with activities and participation. Social and physical environmental factors were assessed by the World Health Organization International Classification of Functioning, Disability and Health Checklist Version 2.1a Clinician form. checklist. Patients were assessed during the acute (1 wk), postacute (3 mo), and chronic (6 mo) phases after stroke onset. RESULTS: Significant changes were observed over time in stroke body functions, cognitive status, manual and locomotion abilities, and satisfaction with activity and participation. At 1 week, satisfaction with activity and participation was not related to any body functions, activities, or environmental factors. At 3 months, manual ability was the only variable that was significantly related to satisfaction. During the chronic phase, manual ability and body functions were the best predictors of the stroke patient's perceived satisfaction. However, this combination of factors predicted only 43% of the variation in the SATIS-Stroke measures. CONCLUSIONS: Satisfaction with activity and participation cannot simply be inferred from body functions and activities, because it depends on complex interactions between functional, personal, and environmental factors.

Cross-cultural adaptation and validation of the Ukrainian version of the ABILHAND-Kids questionnaire.

PURPOSE: To develop and cross-culturally validate the Ukrainian version of the ABILHAND-Kids questionnaire by testing its psychometric properties in a sample of Ukrainian children with cerebral palsy. METHODS: The ABILHAND-Kids questionnaire was translated into Ukrainian, cross-culturally adapted, and administered to 113 parents of children with cerebral palsy. The psychometric properties of the Ukrainian version and its cross-cultural validation were investigated through the Rasch rating scale model. RESULTS: One major misfit has been found for the item "Rolling up a sleeve of a sweater" that further was removed. The item "Putting on a backpack/schoolbag" was split into gender-specific items, separately for girls and for boys, as it was systematically easier for Ukrainian girls. All remaining items contributed to the definition of a unidimensional measure of manual ability. The internal consistency reliability of the scale was high (R = 0.95). No significant floor (4%) and ceiling effects (5%) were observed. Three major differential item functioning items were found across Belgium and Ukraine, highlighting the need to use the Ukrainian calibration of ABILHAND-Kids in Ukraine. CONCLUSION: The Ukrainian ABILHAND-Kids questionnaire has good psychometric properties for assessing manual ability in Ukrainian children with cerebral palsy, holding potential to be implemented in clinical practice nationwide.Implications for rehabilitationCerebral palsy impairs manual ability leading to decreased quality of life and participation.Professionals need valid and reliable tools to detect small changes of manual ability during rehabilitation.Metric properties and availability of the Ukrainian version of the ABILHAND-Kids questionnaire make it a useful tool in the assessment of children with cerebral palsy.

Normative values and discriminative ability across functional levels of ACTIVLIM-CP, a measure of global activity performance for children with cerebral palsy.

Purpose: This study aims to provide normative values of a global activity performance questionnaire (ACTIVLIM-CP) and investigate its ability to discriminate children with cerebral palsy of various functional levels.Methods: Parents of 503 typically developing children aged 2-18 years old (mean age ± standard deviation (SD): 9.56 ± 4.62 years) and 285 children with cerebral palsy aged 2-18 years old (mean age ± SD: 10.08 ± 4.09 years) answered ACTIVLIM-CP. To provide normative values, influence of typically developing children's characteristics on ACTIVLIM-CP measures was investigated with a multiple linear regression. A Kruskal-Wallis test and Dunn's post-hoc tests were performed to investigate age differences in ACTIVLIM-CP measures. Discriminative ability of ACTIVLIM-CP was investigated using a one-way analysis of variance and post-hoc tests between children with cerebral palsy who differed in manual and gross motor functional levels.Results: In typically developing children, age was the strongest predictor, explaining 74% of the variance of ACTIVLIM-CP measures (ß = 0.86, t = 38.21, p < 0.001). ACTIVLIM-CP measure increased with age until 17-18 years old where all children reached the maximal value, although 50% of the children at 12 years old already reached the maximal measure. Normative values were developed for each age bracket. In addition, ACTIVLIM-CP was able to discriminate children with CP's performance measures across most manual ability and gross motor functional levels.Conclusions: Normative values developed in this study with a representative sample of typically developing children allow clinicians to appraise the functional delay of children with cerebral palsy from the normal development of global activity performance. The good discriminative ability of ACTIVLIM-CP support its precision, construct validity, and clinical relevance to describe global activity limitations in children with cerebral palsy with manual ability levels and gross motor function levels II-V.Implications for rehabilitationNormative data of ACTIVLIM-CP developed with a representative sample of typically developing children can be used with children with CP to differentiate the age effect from the disruption caused by cerebral palsy.ACTIVLIM-CP showed the ability to discriminate across children with cerebral palsy having different manual and gross motor function, highlighting its precision, construct validity, and its clinical relevance to describe limitations in children with manual ability levels and gross motor function levels II-V.ACTIVLIM-CP covers a wide age range, is a cost-effective, easy and freely-available assessment of global activity performance in activities of daily living for clinicians.

Validity and reliability of the Persian ABILHAND-Kids in a sample of Iranian children with cerebral palsy.

Aim: To develop a Persian version of ABILHAND-Kids and to determine its reliability and validity in Persian-speaking children with cerebral palsy (CP).Method: The ABILHAND-Kids questionnaire was translated into Persian language and cross-culturally adapted following guidelines. The Persian ABILHAND-Kids was administered to 50 parents of CP children. Among the 50 parents of CP children, 30 of them participated in a test-retest reliability phase. Fifty parents of healthy children participated for discriminative validity.Results: The Rasch analysis indicated the unidimensionality, reliability, and global invariance of the Persian ABILHAND-Kids. The internal consistency reliability was high (Cronbach's alpha = 0.96). Floor and ceiling effects were insignificant (4%). The Intraclass Correlation Coefficients of test-retest reliability were 0.96 and 0.70 for item difficulties and children's measures, respectively. The standard error of measurement and smallest detectable change for CP measure were 11.21 and 31.07%, respectively. The discriminative validity of the Persian ABILHAND-Kids was demonstrated by statistically significant lower ABILHAND-Kids measures in CP children than in healthy children (p < 0.001). Cross-cultural validity between the Persian and original version was established for 19 out of the 21 ABILHAND-Kids items.Interpretation: The Persian ABILHAND-Kids questionnaire is reliable and valid for assessing manual ability in Persian speaking children with CP.Implications for rehabilitationThe Persian version of ABILHAND-Kids is developed and presented as a valid and reliable instrument for use by Persian-speaking clinicians and researchers.It is now possible for the Persian-speaking researchers to participate in international investigations and to compare Persian data with those from other countries.

The Two-Arm Coordination Test: Maturation of Bimanual Coordination in Typically Developing Children and Deficits in Children with Unilateral Cerebral Palsy.

Background: Tools to assess bimanual coordination are scant. We aimed to: 1) provide normative data of maturation of bimanual coordination in tipically developing (TD) children measured by the Two Arm Coordination Test (TACT), and 2) validate the TACT as an instrument to specifically discriminate impairment of bimanual coordination in children with unilateral cerebral palsy (UCP). Procedure: Cross-sectional observational study. 252 TD children and 26 children with UCP performed 8 trials of TACT (following a star pattern with a pointer steered by coordinated movements of both arms). Number of errors and time were combined in a performance index of motor learning.Results: In TD children, bimanual coordination improved with age (F(7,244)=36.888, p<.001). Children with UCP had a poorer bimanual coordination than TD children (all t>24.25, all p<.01). TACT scores were correlated moderately to manual dexterity and manual ability (all r>-.452, all p<.039), showing the capacity of the TACT to provide information on different aspects of hand function. Conclusion: TACT is a valid instrument to assess bimanual coordination.

ABILOCO: a Rasch-built 13-item questionnaire to assess locomotion ability in stroke patients.

OBJECTIVE: To develop a questionnaire (ABILOCO), based on the Rasch measurement model, that can assess locomotion ability in adult stroke patients (International Classification of Functioning, Disability and Health activity domain). DESIGN: Prospective study and questionnaire development. SETTING: A faculty hospital. PARTICIPANTS: Adult stroke patients (N=100) (age, 64+/-15y). The time since stroke ranged from 1 to 260 weeks. INTERVENTION: A preliminary questionnaire included 43 items representing a large sample of locomotion activities. This questionnaire was tested on the 100 stroke patients, and their responses were analyzed using the Rasch model (RUMM 2020 software) to select items that had an ordered rating scale and fitted a unidimensional model. MAIN OUTCOME MEASURE: The ABILOCO questionnaire. RESULTS: The retained items resulted in a 13-item questionnaire, which includes a wide range of locomotion abilities well targeted to the sample population, leading to good reliability (R=.93). The item calibration was independent of age, sex, time since stroke, and affected side. The concurrent validity of ABILOCO was also investigated by comparing it with well-known, criterion standard scales (Functional Walking Category, Functional Ambulation Categories, item 12 of the FIM instrument evaluating walking ability) and the walking speed measured with the 10-meter walk test. CONCLUSIONS: The ABILOCO questionnaire presents good psychometric qualities to measure locomotion ability in adult stroke patients. Its range and measurement precision make it attractive for clinical use throughout the rehabilitation process and for clinical research.

Precision grip control while walking down a step in children with unilateral cerebral palsy.

AIM: To compare grip force (GF) and load force (LF) coordination while walking down a step between children with unilateral cerebral palsy (UCP) and typically developing (TD) children. METHODS: Twenty-five children with UCP (age 9.3±1.7 y) and 25 TD controls (age 9.4±2.1 y) walked down a step while holding a grip-lift manipulandum. Dynamic and temporal variables were analyzed. The maximum voluntary contraction (MVC) was also assessed. RESULTS: The temporal course was perturbed mainly in the more affected hand of children with UCP when compared to TD children because the increases in GF and LF onset occurred in a reversed order. Compared with the TD controls, the children with UCP presented higher LF values on both hands and a higher GF on the less affected hand. In children with UCP, the GF to LF adaptation was adequate on the less affected hand but overestimated on the more affected hand. Furthermore, children with UCP presented a lower MVC in the more affected hand, leading to a higher percentage of MVC used during the task. INTERPRETATION: Our findings highlight an anticipatory control of precision grip during a stepping down task in children with UCP that is adequate for the less affected hand but altered for the more affected hand.

Hand impairments and their relationship with manual ability in children with cerebral palsy.

OBJECTIVE: To study hand impairments and their relationship with manual ability in children with cerebral palsy. DESIGN: Cross-sectional survey. PATIENTS: A total of 101 children with cerebral palsy (mean age 10 years, age range 6-15 years) were assessed. METHODS: Three motor and 3 sensory impairments were measured on both hands. Motor impairments included grip strength (Jamar dynamometer), gross manual dexterity(Box and Block Test) and fine finger dexterity (Purdue Peg-board Test). Sensory impairments included tactile pressure detection (Semmes-Weinstein aesthesiometer), stereognosis(Manual Form Perception Test) and proprioception (passive mobilization of the metacarpophalangeal joints). Manual ability was measured with the ABILHAND-Kids questionnaire. The relationship between hand impairments and manual ability was studied through correlation coefficients and a multiple linear forward stepwise regression analysis. RESULTS: Motor impairments were markedly more prevalent than sensory ones. Gross manual dexterity on the dominant hand and grip strength on the non-dominant hand were the best independent predictors of the children's manual ability,predicting 58% of its variance. CONCLUSION: Hand impairments and manual ability are not related in a predictable straightforward relationship. It is important that, besides hand impairments, manual ability is also measured and treated, as it is not simply the integration of hand functions in daily activities.

ACTIVLIM-CP a new Rasch-built measure of global activity performance for children with cerebral palsy.

OBJECTIVE: Children with cerebral palsy (CP) often have upper extremity (UE) and lower extremity (LE) impairments. While tools measuring separately UE and LE abilities are currently used, activities in which UE and LE are used in combination - numerous in everyday life - cannot be assessed because no instrument allows capturing global activity performance in children with CP. This study aimed to develop a clinical tool for measuring their global activity performance using the Rasch model. STUDY DESIGN: The caregivers of 226 children with CP (2-18 years old) answered a 154-item experimental questionnaire. Within 4-6 weeks, 129 of them filled in the questionnaire a second time. Responses were analyzed using the Rasch RUMM2020 software. RESULTS: The final 43 item scale presented a high reliability (R=0.98) and reproducibility (R=0.97). The item difficulty hierarchy was consistent over time and did not vary according to age, gender, or clinical form, allowing the follow-up of children from 2 to 18 years old. CONCLUSIONS: ACTIVLIM-CP is a unidimensional scale specifically developed to measure global activity performance in children with CP providing a reliable tool to follow children's evolution and document changes related to neurorehabilitation, especially where a combination of UE and LE is targeted. Its responsiveness is still to be tested.

Hand and Arm Bimanual Intensive Therapy Including Lower Extremity (HABIT-ILE) in Children With Unilateral Spastic Cerebral Palsy: A Randomized Trial.

BACKGROUND: Intensive bimanual training results in more improvement in hand function in children with unilateral spastic cerebral palsy (USCP) than lower intensity conventional interventions. However, it is not known whether combined upper and lower extremity training in an intensive protocol is more efficacious for upper and lower functional abilities than conventional therapies provided in usual customary care. OBJECTIVE: To determine the efficacy of Hand and Arm Bimanual Intensive Therapy Including Lower Extremity (HABIT-ILE) for children with USCP. METHODS: Twenty-four children with USCP were randomized into 2 groups: an immediate HABIT-ILE group (IHG, initially receiving HABIT-ILE, 10 days = 90 hours), and a delayed HABIT-ILE group (DHG), which continued their conventional/ongoing treatment for an intended total duration of 90 hours. In phase 2, children in the DHG were crossed over to receive HABIT-ILE and children of the IHG were followed in their ongoing conventional therapy. Children were assessed using the Assisting Hand Assessment (AHA, primary outcome), the ABILHAND-Kids, and the Pediatric Evaluation of Disability Inventory. Dexterity (Box and Blocks Test [BBT]) and pinch strength were also measured. Locomotor abilities were assessed with Six-Minute Walk Test (6MWT, primary outcome) and ABILOCO-kids. Social participation was measured with the Assessment of Life-HABITs. RESULTS: A 2 (groups) × 3 (test sessions) analysis of variance indicated significant improvements for primary outcomes (AHA, P < .001; 6MWT, P = .002) and all secondary assessments except BBT, step length and bodyweight distribution following HABIT-ILE, but not conventional therapy. CONCLUSION: The findings suggest that combined upper and lower extremity in an intensive training protocol may be efficacious for improving both upper and lower extremity function in children with USCP.

Hand functioning in children with cerebral palsy.

Brain lesions may disturb hand functioning in children with cerebral palsy (CP), making it difficult or even impossible for them to perform several manual activities. Most conventional treatments for hand dysfunction in CP assume that reducing the hand dysfunctions will improve the capacity to manage activities (i.e., manual ability, MA). The aim of this study was to investigate the directional relationships (direct and indirect pathways) through which hand skills influence MA in children with CP. A total of 136 children with CP (mean age: 10 years; range: 6-16 years; 35 quadriplegics, 24 diplegics, 77 hemiplegics) were assessed. Six hand skills were measured on both hands: touch-pressure detection (Semmes-Weinstein esthesiometer), stereognosis (Manual Form Perception Test), proprioception (passive mobilization of the metacarpophalangeal joints), grip strength (GS) (Jamar dynamometer), gross manual dexterity (GMD) (Box and Block Test), and fine finger dexterity (Purdue Pegboard Test). MA was measured with the ABILHAND-Kids questionnaire. Correlation coefficients were used to determine the linear associations between observed variables. A path analysis of structural equation modeling was applied to test different models of causal relationships among the observed variables. Purely sensory impairments did seem not to play a significant role in the capacity to perform manual activities. According to path analysis, GMD in both hands and stereognosis in the dominant hand were directly related to MA, whereas GS was indirectly related to MA through its relationship with GMD. However, one-third of the variance in MA measures could not be explained by hand skills. It can be concluded that MA is not simply the integration of hand skills in daily activities and should be treated per se, supporting activity-based interventions.

Rasch-Built Measure of Pleasant Touch through Active Fingertip Exploration.

BACKGROUND: Evidence suggests that somatic sensation has a modality for pleasant touch. OBJECTIVE: To investigate pleasant touch at the fingertip level (i.e., glabrous skin site) through the elaboration of a linear unidimensional scale that measures (i) various materials according to the level of pleasantness they elicit through active fingertip explorations and (ii) subjects according to their pleasantness leniency levels. SUBJECTS: We enrolled 198 healthy subjects without any neurological disease. METHODS: Blindfolded subjects actively explored 48 materials with their index fingertips and reported the perceived pleasantness of each on a 4-level scale. The fingertip moisture levels on each subject were measured before the experimental session. Data were analyzed using the Rasch model. RESULTS: We elaborated unidimensional linear scale that included 37 materials according to their pleasantness of touch. The pleasantness level of 21 materials was perceived differently, depending on the fingertip moisture levels of the subjects. CONCLUSION: Based on our findings, we formulated a Pleasant Touch Scale. Fingertip moisture levels appeared to be a major factor for (un)pleasant feelings during active exploration.

Can manual ability be measured with a generic ABILHAND scale? A cross-sectional study conducted on six diagnostic groups.

OBJECTIVES: Several ABILHAND Rasch-built manual ability scales were previously developed for chronic stroke (CS), cerebral palsy (CP), rheumatoid arthritis (RA), systemic sclerosis (SSc) and neuromuscular disorders (NMD). The present study aimed to explore the applicability of a generic manual ability scale unbiased by diagnosis and to study the nature of manual ability across diagnoses. DESIGN: Cross-sectional study. SETTING: Outpatient clinic homes (CS, CP, RA), specialised centres (CP), reference centres (CP, NMD) and university hospitals (SSc). PARTICIPANTS: 762 patients from six diagnostic groups: 103 CS adults, 113 CP children, 112 RA adults, 156 SSc adults, 124 NMD children and 124 NMD adults. PRIMARY AND SECONDARY OUTCOME MEASURES: Manual ability as measured by the ABILHAND disease-specific questionnaires, diagnosis and nature (ie, uni-manual or bi-manual involvement and proximal or distal joints involvement) of the ABILHAND manual activities. RESULTS: The difficulties of most manual activities were diagnosis dependent. A principal component analysis highlighted that 57% of the variance in the item difficulty between diagnoses was explained by the symmetric or asymmetric nature of the disorders. A generic scale was constructed, from a metric point of view, with 11 items sharing a common difficulty among diagnoses and 41 items displaying a category-specific location (asymmetric: CS, CP; and symmetric: RA, SSc, NMD). This generic scale showed that CP and NMD children had significantly less manual ability than RA patients, who had significantly less manual ability than CS, SSc and NMD adults. However, the generic scale was less discriminative and responsive to small deficits than disease-specific instruments. CONCLUSIONS: Our finding that most of the manual item difficulties were disease-dependent emphasises the danger of using generic scales without prior investigation of item invariance across diagnostic groups. Nevertheless, a generic manual ability scale could be developed by adjusting and accounting for activities perceived differently in various disorders.

Changes in satisfaction with activities and participitation between acute, post-acute and chronic stroke phases: a responsiveness study of the SATIS-Stroke questionnaire.

OBJECTIVE: To investigate clinical changes among the acute, post-acute and chronic phases in stroke patients' satisfaction with activities and participation. The SATIS-Stroke questionnaire's sensitivity to change was investigated with a sample of 45 stroke patients. METHODS: The SATIS-Stroke questionnaire was used to collect data from the 45 patients (mean age 69 years, 64% men) in the acute, post-acute and chronic stroke phases. Responsiveness of the questionnaire was investigated using a sample approach (effect size and standardized response mean indices) and an individual approach (t statistic). The clinical significance of change was also calculated using the empirical rule of effect size and the minimal clinically important difference. RESULTS: Analysis of variance showed a significant difference among evaluations in the 3 phases (F = 13.662; 2 df; p < 0.001). Post-hoc analysis showed a significant change between the acute and post-acute phases, but no significant change between the post-acute and chronic phases. Effect size and standardized response mean indices showed that the greatest change in satisfaction with activity and participation was between the acute and the chronic phases. Analysis of the clinical significance of change indicated that greater changes in satisfaction were necessary to detect clinically relevant improvement over time than clinically relevant deterioration. CONCLUSION: The SATIS-Stroke questionnaire successfully determined changes in satisfaction among stroke patients.

SATIS-Stroke: A satisfaction measure of activities and participation in the actual environment experienced by patients with chronic stroke.

OBJECTIVE: To develop a satisfaction measure of activities and participation in the actual environment experienced by patients after chronic stroke using the Rasch measurement model. METHODS: A 36-item questionnaire based on the International Classification of Functioning, Disability and Health model and existing scales was developed. The questionnaire was submitted to 101 patients (70% men; mean age 63 years) without major intellectual deficits who live in different types of residences (homes and nursing homes). The questionnaire was resubmitted after one month. The patients' responses were analysed separately using RUMM Rasch software to select items presenting an ordered rating scale, sharing the same discrimination, and fitting a unidimensional scale. RESULTS: The final SATIS-Stroke scale consisted of 36 items rated by the patients. The patients reported perceptions over a wider range of measurement with high reliability (r = 0.94) and good reproducibility over time (intraclass correlation coefficient = 0.98). The SATIS-Stroke measures are significantly related to age and place of residence. CONCLUSION: SATIS-Stroke is a functional scale specifically developed to measure satisfaction with activities and participation, providing goal-setting guidelines for treatment planning. Its range and measurement precision are appropriate for clinical practice.