Physical mobility limitations in adults with intellectual disabilities: a systematic review.
We cannot treat what we cannot measure—this review shows adult-ID mobility research still speaks dozens of different languages.
01Research in Context
What this study did
Bhaumik et al. (2009) looked at 31 papers about how well adults with intellectual disability move. They wanted to see how scientists define and measure mobility problems.
The team found no shared definition. One paper called "limited" needing a cane. Another said it was walking slower than peers. Tools ranged from stopwatches to long surveys.
What they found
Almost every study used a different yardstick. Because of that, the review could not say how common mobility limits really are.
Only two papers tracked the same people over time. Without follow-up data, we cannot tell when or why adults with ID lose walking skills.
How this fits with other research
Bartlo et al. (2011) built on this mess. Their review showed exercise programs do boost balance and strength in the same population. The takeaway: we already know activity helps, but S et al. warn we still lack agreed-upon tools to measure that help.
Laposa et al. (2017) went one step further. They listed 37 barriers that keep adults with ID from moving—like lack of transport and fear of falling. S et al. showed the yardsticks are broken; M et al. showed the roadblocks are many.
Hinckson et al. (2013) ran the same kind of review for kids. They also found no gold-standard activity monitor. Together, the two papers signal a gap across the lifespan: we measure poorly in both children and adults with ID.
Why it matters
Before you write a mobility goal, pick a tool that is valid for adults with ID. Share the measure with the whole team so data stay consistent. Push for longer follow-up—six months, not six weeks—to catch slow declines. And when you cite progress, remind stakeholders that small steps may still be big wins until the field settles on shared benchmarks.
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02At a glance
03Original abstract
BACKGROUND: Mobility limitations increase with age in the general population. Despite a growing population of older adults with intellectual disabilities (ID), mobility is rarely studied in the ID literature. The specific aim of this study was to identify and summarise primary literature investigating mobility limitations in adults with ID. METHODS: This study was a systematic review of the epidemiological literature (incidence and prevalence) of mobility limitations among adults with ID. Four electronic databases were searched from January 1980 to May 2007 for publications according to predefined inclusion/exclusion criteria. Additional sources were consulted. Two reviewers extracted data from each of the included articles. RESULTS: Thirty-two publications representing 31 studies were ultimately included. In general, studies did not focus on mobility but were conducted for other purposes. All studies were conducted in industrialised countries. Only one study used a longitudinal design; the remainders were cross-sectional. Few investigators reported on the representativeness of the sample or the validity of the measurement tool. Study samples differed substantially and investigators used numerous definitions of mobility limiting comparability between studies. CONCLUSIONS: There is a need for increased research on mobility limitations among adults with ID, particularly longitudinal research. Researchers investigating mobility limitations should use validated measurement tools and offer detailed descriptions of the study sample and how it compares with an identifiable population.
Journal of intellectual disability research : JIDR, 2009 · doi:10.1111/j.1365-2788.2008.01137.x