“…Pigmentosa have, however, been shown to walk faster and with greater ease with their dog than 365 without 34 . Thus, further research to demonstrate whether and how mobility aids enhance mobility 366 function would be beneficial.…”
Purpose
To determine the relative difficulty of activity of daily living tasks for people with retinitis pigmentosa (RP).
Methods
Participants with RP (n = 166) rated the difficulty of tasks (n = 43) underpinning the Dutch Activity Inventory goals of mobility indoors and outdoors, shopping, and using public transport. Demographic characteristics were also determined. Responses were Rasch analyzed to determine properties of the scale, derive unidimensional subscales, and consider differential item functioning (DIF).
Results
After removal of one ill-fitting item, the remaining 42 tasks formed a scale with reasonable Rasch parameters but poor unidimensionality. The most difficult tasks were orienting in poor and bright light both indoors and outdoors, and avoiding peripheral obstacles outdoors. Eight subscales were derived with unidimensional properties, each of which could be considered as requiring similar skills. DIF identified that tasks from the “poor light and obstacles” subscale were more difficult for those younger than the median age, nonusers of mobility aids, and those not registered or registered sight impaired. Tasks from the “finding products” and “public transport” subscales were more difficult for those older than the median age, with longer duration of visual loss, users of mobility aids, and those registered severely sight impaired.
Conclusions
The most difficult tasks for people with RP of orienting in poor light and avoiding peripheral obstacles are relatively more difficult for those not registered as “severely sight impaired,” but are less difficult for those who use mobility aids. Mobility aids (guide dog or cane), therefore, do benefit users in their perceived ability in these particular tasks. The derived unidimensional subscales reorganize the tasks from those grouped together by goal (researcher driven) to those perceived as requiring similar skills by people with RP (patient driven) and can be used as an evidence base for orientation and mobility training protocols.
“…Pigmentosa have, however, been shown to walk faster and with greater ease with their dog than 365 without 34 . Thus, further research to demonstrate whether and how mobility aids enhance mobility 366 function would be beneficial.…”
Purpose
To determine the relative difficulty of activity of daily living tasks for people with retinitis pigmentosa (RP).
Methods
Participants with RP (n = 166) rated the difficulty of tasks (n = 43) underpinning the Dutch Activity Inventory goals of mobility indoors and outdoors, shopping, and using public transport. Demographic characteristics were also determined. Responses were Rasch analyzed to determine properties of the scale, derive unidimensional subscales, and consider differential item functioning (DIF).
Results
After removal of one ill-fitting item, the remaining 42 tasks formed a scale with reasonable Rasch parameters but poor unidimensionality. The most difficult tasks were orienting in poor and bright light both indoors and outdoors, and avoiding peripheral obstacles outdoors. Eight subscales were derived with unidimensional properties, each of which could be considered as requiring similar skills. DIF identified that tasks from the “poor light and obstacles” subscale were more difficult for those younger than the median age, nonusers of mobility aids, and those not registered or registered sight impaired. Tasks from the “finding products” and “public transport” subscales were more difficult for those older than the median age, with longer duration of visual loss, users of mobility aids, and those registered severely sight impaired.
Conclusions
The most difficult tasks for people with RP of orienting in poor light and avoiding peripheral obstacles are relatively more difficult for those not registered as “severely sight impaired,” but are less difficult for those who use mobility aids. Mobility aids (guide dog or cane), therefore, do benefit users in their perceived ability in these particular tasks. The derived unidimensional subscales reorganize the tasks from those grouped together by goal (researcher driven) to those perceived as requiring similar skills by people with RP (patient driven) and can be used as an evidence base for orientation and mobility training protocols.
“…Alguns estudos demonstraram que o manejo de um cão através da guia transmite informação háptica 1 e auxilia na orientação postural e na mobilidade de adultos privados da visão (Mauerberg-deCastro, Moraes, Tavares, Pestana, Porto, & Dias, 2013;Melo, 2011), de deficientes intelectuais (Pestana, Mauerberg-deCastro, Périco, & Porto, 2012) e de cegos (Zabihaylo, Couturier, Termoz, & Prince, 2005).…”
O objetivo deste trabalho foi avaliar a influência da percepção háptica na estabilidade locomotora do ser humano durante a condução de um cão com uma guia. Adultos (n=14), com e sem restrição da visão, andaram sobre uma trave de equilíbrio sozinhos, ou, com uma guia, andaram conduzindo um cão sobre um banco estreito ao lado. Quando os participantes caminharam conduzindo o cão, privados da visão, o desempenho locomotor-avaliado através da duração do deslocamento total, da duração das passadas, das fases de duplo suporte e balanço, do comprimento e velocidade das passadas, assim como da variabilidade da fase relativa-melhorou significativamente (p < 0,05) em relação ao desempenho locomotor na condição sem o cão. Nas condições com visão, conduzir o cão não resultou em mudanças nestas variáveis. Concluímos que estes indivíduos foram capazes de utilizar a guia do cão para detectar propriedades hápticas com propósito de melhorar a estabilidade na locomoção.
“…2 Such an assurance also increases the user's speed of locomotion. 3 Guide dogs are also trained in the concept of "intelligent disobedience", which teaches the dogs to disobey their owners in the event of potential danger; for example, when crossing a road.…”
Section: Opening Our Eyes To Guide Dogs For the Blind In Singapore De...mentioning
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