| 1. |
- Lindner, Helen Y. N., 1967-, et al.
(författare)
-
Assessment of capacity for myoelectric control : evaluation of construct and rating scale
- 2009
-
Ingår i: Journal of Rehabilitation Medicine. - : Medical Journals Sweden AB. - 1650-1977 .- 1651-2081. ; 41:6, s. 467-474
-
Tidskriftsartikel (refereegranskat)abstract
- Objective: To examine the construct and rating scale of the Assessment of Capacity for Myoelectric Control, an assessment to evaluate ability in using a prosthetic hand.Design: Cross-sectional study. Subjects: Upper limb prosthesis users with different prosthetic levels/sides and prosthetic experience were included (n=96).Methods: Subjects' assessments with the Assessment of Capacity for Myoelectric Control were collected by 6 raters during their regular hospital visits. Rasch analysis was used, since it allowed an analysis of the data at the item and category levels. Dimension, item hierarchy and item fit statistics were used to examine the construct. Different Rasch parameters were used to examine rating scale structure and its use.Results: The consistency of item difficulties with clinical knowledge and the unidimensionality confirmed that the construct is valid. Two items functioned unexpectedly (misfit), but the misfit was idiosyncratic to the sample, not systematic to the items. The 4-point rating scale usefully differentiated the subjects on the basis of their abilities. The use of category 2 was somewhat redundant.Conclusion: The Assessment of Capacity for Myoelectric Control is a valid assessment that evaluates ability in using a prosthetic hand. Revision of the category 2 definition would improve the functioning of the rating scale.
|
|
| 2. |
- Amer, Ahmed, 1984-, et al.
(författare)
-
The effect of insoles on foot pain and daily activities
- 2014
-
Ingår i: Prosthetics and Orthotics International. - : Sage Publications. - 0309-3646 .- 1746-1553. ; 38:6, s. 474-480
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- BACKGROUND:Foot pain decreases individuals' ability to perform daily activities. Insoles are often prescribed to reduce the pain which, in turn, may promote return to normal activities.OBJECTIVES:To evaluate the effects of insoles on foot pain and daily activities, and to investigate the relationship between individuals' satisfaction with insoles and actual use of them.STUDY DESIGN:A 4-week pre-post intervention follow-up.METHODS:Brief Pain Inventory, International Physical Activity Questionnaire and Lower Extremities Functional Status were used as outcome measures. Client Satisfaction with Device was used in the follow-up.RESULTS:A total of 67 participants answered the questionnaires (81% women). Overall, a reduction in Pain Severity (p = 0.002) and Pain Interference (p = 0.008) was shown. Secondary analyses revealed a significant effect only in women. No changes in daily activities (Walking, p = 0.867; Total Physical Activity, p = 0.842; Lower Extremities Functional Status, p = 0.939) could be seen. There was no relation between Client Satisfaction with Device measures and duration of insole use. A difference in sex was shown; women scored higher than men on Pain Severity.CONCLUSION:Insoles reduce pain and pain interference with daily activities for women with foot pain. Satisfaction with the insoles is not a predictor of actual insole use. The effect of insoles on activity performance needs further study.CLINICAL RELEVANCE:This study provides evidence for prescribing insoles to people with foot pain. Nonetheless, insoles are not enough to increase their physical activity level in the short term. Satisfaction with insoles and duration of use are not correlated and cannot be inferred from each other.
|
|
| 3. |
- Fredriksson, Carin, 1954-, et al.
(författare)
-
The value of a powered wheelchair : spouses´ perspective
- 2013
-
Ingår i: Association for the Advancement of Assistive Technology in Europe Conference 2013 (AAATE 2013). - Amsterdam, Netherlands : Elsevier. - 9781614993032 ; , s. 222-225
-
Konferensbidrag (refereegranskat)abstract
- Research concerning the significance of assistive technology to spouses of persons who uses technology is sparse and the impact of a powered wheelchair on spouses' activity and participation is not at all researched. Thus, the aim was to explore how spouses experience the significance of a powered wheelchair prescribed to and used by their next of kin. A descriptive design with a qualitative approach focusing on the experiences of the spouses was used. The sample comprised of 10 spouses of elderly people that have been prescribed a powered wheelchair. Semi-structured interviews were conducted with the ten spouses (nine women and one man). The participants were 65-86 years of age. The questions posed during the interview concerned: i) the significance of the powered scooter for personal everyday activities, participation and quality of life; ii) the significance of the scooter for shared activity and participation; and iii) the significance of the next of kin using a scooter, from the perspective of the spouse. Interviews were transcribed verbatim and analyzed using qualitative content analysis. The results showed that the spouses experienced that their everyday life and life situation had changed in a positive way as their next of kin received a powered wheelchair. They experienced a sense of freedom that had an impact on their own activities as well as on the activities they performed together with their next of kin. The spouses expressed that they now to a larger extent shared responsibility for different tasks in the home and also how the powered wheelchair had made it possible to spontaneously do things together again and to do things with more ease. In conclusion, the narratives of the spouses of the elderly powered wheelchair users were to a great extent positive. The powered wheelchair was of great value and brought freedom to everyday life.
|
|
| 4. |
- Hermansson, Liselotte M N, 1954-, et al.
(författare)
-
Intensive training camp for children with a myoelectric prosthetic hand
- 2013
-
Ingår i: ISPO 2013 World Congress. - : International Society for Prosthetics and Orthotics.
-
Konferensbidrag (refereegranskat)abstract
- Since 1978, the Limb Deficiency and Arm Prosthetic Centre (LDAPC) at Örebro University Hospital in Sweden offers a 5-day training camp for paediatric myoelectric prosthesis users1. The aim of the camp is to support the establishment of a regular prosthesis wearing pattern, increase capacity for control of the device, and establish prosthesis use in everyday tasks. Every year in August paediatric myoelectric hand users and their parents are invited to attend this intensive training. The camp consists of around 8 hours of scheduled training each day, both in everyday tasks and outdoor play activities. A structured programme with training of fine motor skills in the mornings and gross motor skills later in the days is prepared by the occupational therapists. The aim was to evaluate the effectiveness of this training procedure on children’s ability to operate the myoelectric hand.During 8-13 August, 2010, 11 children (aged 6-9, 6 boys) with unilateral below-elbow deficiency participated in the camp. The Assessment of Capacity for Myoelectric Control (ACMC)2 was used to evaluate the effectiveness of intensive training on ability to operate the hand. Every child performed an ACMC activity on the first and the last day of the camp (packing suitcase). Their performances were videotaped and scored by an ACMC rater that did not take part in training of the participants at the camp. An ability score for each child was calibrated by Winsteps program. The average ability scores changed from 2.45 logits to 5.04 logits. Most of the children (n=8) had a big change in the ACMC items that measure timing in grasping and releasing objects. The Conclusion is that the training camp is effective in improving the children’s ability to operate a myoelectric hand. The long-term effects on wearing time, skill and bimanual performance from intensive training camps need further studies.
|
|
| 5. |
|
|
| 6. |
- Hermansson, Liselotte M. N., 1954-, et al.
(författare)
-
Test-retest reliability and rater agreements of the Assessment of Capacity for Myoelectric Control version 2.0.
- 2014
-
Ingår i: MEC'14. - Frederiction, New Brunswick, Cananda : University of New Brunswick, Fredericton, Canada.
-
Konferensbidrag (refereegranskat)abstract
- Introduction: The Assessment of Capacity for Myoelectric Control (ACMC) is an observation-based tool that evaluates ability to control a myoelectric prosthetic hand [1]. Validity evidence led to ACMC version 2.0, but test - retest reliability and minimal detectable change (MDC) of ACMC have never been evaluated. For instruments that have an evaluative purpose, such as ACMC, the MDC is a useful clinical value to suggest whether a change is due to measurement error or true change. Investigation of rater agreements in this version was also needed because it has new definitions in certain rating categories and items.Methods: Upper limb prosthesis users (n=25, 13/12 male/female, 15/10 congenital/acquired; mean age 27.5, range 7-72, years) performed one standardized activity twice, 2–5 weeks apart. Activity performances were video-recorded and assessed by two ACMC raters. The item raw scores were converted to Rasch interval ability measures. Ordinal data were analyzed by weighted κ; interval data were analyzed by intraclass correlation coefficient (ICC) and Bland–Altman limit of agreement (LOA) method.Results: For test–retest reliability, ICC2,1 was 0.94. Average weighted κ was 0.76 and percentage agreement (PA) was 85%. In individual items, weighted κ agreements were fair to excellent (0.52・1.00) and PAs were ≥6・100%. MDC95 was ≤.55 logits (1 rater) and 0.69 logits (2 raters). All MDC95 values were ≤5% of the total ability logit range. In the Bland-Altman plot the upper and lower LOA were 0.86 and -0.88 respectively. All except one participant were within the 95% LOA. For inter-rater reliability, weighted κ agreements were fair to excellent in both sessions (0.44–1.00), and ICC2,1 was 0.95 (test) and 0.92 (retest). Intra-rater agreement (rater 1) was excellent (ICC3,1 0.98). The weighted κ values of the test session were all >0.80 and the PAs for each item were ≥6%.Conclusion: The results of the present study demonstrate different aspects of the reliability of ACMC 2.0. Based on these results, we can recommend ACMC as a tool to follow the progress of users in controlling their myoelectric prostheses. The MDC is clinically useful for ACMC raters as a guideline when following the client’s changes over time.
|
|
| 7. |
|
|
| 8. |
- Jarl, Gustav M., 1978-, et al.
(författare)
-
Cross-cultural validity and differential item functioning of the Orthotics and Prosthetics Users’ Survey with Swedish and American users of lower-limb prosthesis
- 2015
-
Ingår i: Archives of Physical Medicine and Rehabilitation. - : Elsevier BV. - 0003-9993 .- 1532-821X. ; 96:9, s. 1615-1626
-
Tidskriftsartikel (refereegranskat)abstract
- Objectives: To investigate the cross-cultural validity of the Orthotics and Prosthetics Users’ Survey (OPUS), to evaluate differential item functioning (DIF) related to country, sex, age, amputation level, and amputated side (unilateral, bilateral), and to determine known-group validity of the OPUS.Design: Survey.Setting: Outpatient clinics.Participants: The sample (NZ321) consisted of Swedish (nZ195) and U.S. (nZ126) adults using lower-limb prostheses.Interventions: Not applicable.Main Outcome Measures: Four OPUS modules were used: lower extremity functional status, client satisfaction with device (CSD), client satisfaction with services (CSS), and health-related quality of life. Rasch analysis was used to calculate measures for persons and items.Results: The cross-cultural validity was satisfactory. Many items demonstrated DIF related to country and demographic characteristics, but the impact on mean person measures was negligible. The rating scales of CSD and CSS needed adjustments, and the unidimensionality of CSD and CSS was weak. The differences between the mean measures of known patient groups were statistically significant for 2 out of 6 comparisons.Conclusions: This study supports the validity of OPUS measure comparisons between Sweden and the United States and between subgroups with different demographic characteristics. Some of the country-related DIF may reflect the different health care financing systems. The findings demonstrate that the OPUS can discriminate between certain patient groups. The results also challenge some of our preconceptions about persons with bilateral amputation, indicating that we might know these persons less well than we think.
|
|
| 9. |
|
|
| 10. |
- Jarl, Gustav M., 1978-, et al.
(författare)
-
Validity evidence for a modified version of the Orthotics and Prosthetics Users' Survey
- 2012
-
Ingår i: Disability and Rehabilitation. - Philadelphia, USA : Taylor & Francis. - 1748-3107 .- 1748-3115. ; 7:6, s. 469-478
-
Tidskriftsartikel (refereegranskat)abstract
- Purpose: To evaluate the validity of a modified version of the Orthotics and Prosthetics Users' Survey (OPUS) with persons using different prosthetic and orthotic (P&O) devices.Method: Two-hundred-and-eighty-two adults using prosthesis, orthosis, shoe insoles or orthopaedic shoes completed OPUS. OPUS comprises five modules - Lower and Upper Extremity Functional Status, respectively (LEFS and UEFS), Client Satisfaction with Device and Services, respectively (CSD and CSS), and, Health-Related Quality of Life (HRQoL). Eight new items were added to LEFS and six to UEFS. Rasch analysis was used for data analyses.Results: Rating scales functioned satisfactory after some modifications. All modules demonstrated a ceiling effect. Unidimensionality was satisfactory after deleting some items and dividing HRQoL into two subscales, although somewhat weak on CSD and CSS. Item reliability was excellent for all modules and person reliability good for all but CSD and CSS. Some items demonstrated differential item functioning related to sex and age, but the impact on person measures was small.Conclusions: This study supports the validity of a modified version of OPUS for persons using different P&O devices, but also reveals limitations to be addressed in future studies. OPUS could be useful in clinical rehabilitation and research to evaluate P&O outcomes.
|
|
