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Aging in Place: Breaking the Barriers - InformeDesign

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Implications<br />

www.<strong>in</strong>formedesign.umn.edu<br />

2<br />

issues of ag<strong>in</strong>g to <strong>the</strong> design community, medical<br />

research is <strong>in</strong>vestigated, and simplified to impactful<br />

elements, while ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g its <strong>in</strong>tegrity. The goal<br />

is to understand how ag<strong>in</strong>g impacts <strong>the</strong> daily life<br />

and activities of <strong>the</strong> elderly, and to design spaces<br />

accord<strong>in</strong>gly.<br />

In consultation with Julie Masters, University of<br />

Nebraska, Omaha Gerontology Department, research<br />

reveals n<strong>in</strong>e specific, age-related ailments that affect<br />

<strong>the</strong> built environment <strong>in</strong> various ways for those who<br />

would prefer to “age <strong>in</strong> place.” These ailments are<br />

most commonly associated with ag<strong>in</strong>g. Sometimes<br />

<strong>the</strong>y occur s<strong>in</strong>gly and sometimes <strong>the</strong>y occur <strong>in</strong><br />

comb<strong>in</strong>ation. It is <strong>the</strong>refore important to understand<br />

not only <strong>the</strong> characteristics of each, but <strong>the</strong>ir impact<br />

on ag<strong>in</strong>g <strong>in</strong>dividuals <strong>in</strong> <strong>the</strong> built environment. The<br />

most common ailments consist of:<br />

Arthritis<br />

Muscular Loss<br />

Cardiovascular Diseases<br />

Neurological Diseases<br />

Diabetes<br />

Osteoporosis<br />

Hear<strong>in</strong>g Impairment<br />

Vision Impairment<br />

Mental Disorders<br />

Prevalent Occurrences<br />

The range of ailments and disorders is broad, and<br />

variable <strong>in</strong> terms of effects. Here are a few of <strong>the</strong> most<br />

common ones afflict<strong>in</strong>g our ag<strong>in</strong>g population. The<br />

statistics are sober<strong>in</strong>g. Most people age 75+ have at<br />

least one jo<strong>in</strong>t affected by arthritis. From 2003-2005,<br />

50% of adults 65 years or older reported an arthritis<br />

diagnosis (MMWR, 2006). Women are impacted 2-3<br />

times more than men by rheumatoid arthritis. Most<br />

hear<strong>in</strong>g loss beg<strong>in</strong>s between 40-50 years of age. Over<br />

28% of <strong>in</strong>dividuals age 65 and older have a measurable<br />

hear<strong>in</strong>g impairment. By age 85, 50% of <strong>in</strong>dividuals<br />

have a hear<strong>in</strong>g impairment. Static acuity (sharpness<br />

of a stationary visual image) decl<strong>in</strong>es about age 40;<br />

and by <strong>the</strong> 70s, it has decreased by 30% compared<br />

to people <strong>in</strong> <strong>the</strong>ir 20s. Depth perception beg<strong>in</strong>s to<br />

decl<strong>in</strong>e dur<strong>in</strong>g <strong>the</strong> 50s and a 60-year-old person may<br />

require 2 to 3 times as much light to see as a 20-yearold;<br />

with <strong>the</strong> amount of light required doubl<strong>in</strong>g for<br />

each 13 years after <strong>the</strong> age of 20 (Centers for Disease<br />

Control and Prevention, 2009). One <strong>in</strong> two women<br />

and one <strong>in</strong> eight men over 50 years of age will have an<br />

osteoporosis-related fracture (National Osteoporosis<br />

Foundation, 2009). The physical limitations of ag<strong>in</strong>g<br />

do cause problems <strong>in</strong> some general areas, potentially<br />

affect<strong>in</strong>g people’s ability to live effectively on <strong>the</strong>ir own.<br />

These general limitations are briefly itemized below.<br />

Physical Limitations<br />

In general, ag<strong>in</strong>g-related ailments may cause some<br />

degree of problem <strong>in</strong> <strong>the</strong> follow<strong>in</strong>g areas:<br />

• gripp<strong>in</strong>g, p<strong>in</strong>ch<strong>in</strong>g, twist<strong>in</strong>g and squeez<strong>in</strong>g<br />

(hands)<br />

• bend<strong>in</strong>g or reach<strong>in</strong>g for objects<br />

• lift<strong>in</strong>g objects above shoulders or from below<br />

knees<br />

• gett<strong>in</strong>g <strong>in</strong>to and out of furniture and fixtures (e.g.,<br />

shower, toilet)<br />

• gett<strong>in</strong>g up or down <strong>in</strong>to a squat or floor position<br />

• climb<strong>in</strong>g and descend<strong>in</strong>g stairs<br />

• general mobility and flexibility<br />

• <strong>the</strong> need to rest even while do<strong>in</strong>g stationary tasks<br />

• slippery surfaces (<strong>in</strong>herent or due to water)<br />

• lift<strong>in</strong>g feet when walk<strong>in</strong>g versus shuffl<strong>in</strong>g<br />

• requir<strong>in</strong>g more light to see<br />

• requir<strong>in</strong>g more time to adapt to decreases or<br />

<strong>in</strong>creases <strong>in</strong> light<br />

• los<strong>in</strong>g ability to discern between shadows<br />

• los<strong>in</strong>g ability to see details<br />

Vision and Color<br />

Color plays a major role <strong>in</strong> visual perception of <strong>the</strong><br />

elderly. Accord<strong>in</strong>g to Lighthouse International, <strong>the</strong><br />

lens <strong>in</strong> <strong>the</strong> eye is a clear, layered structure attached<br />

to eye muscles that contract or relax to focus <strong>in</strong><br />

response to light (a loss of focus<strong>in</strong>g ability is <strong>the</strong><br />

reason many adults over 40 need read<strong>in</strong>g glasses).<br />

Yellow<strong>in</strong>g of <strong>the</strong> ag<strong>in</strong>g lens decreases color perception,<br />

and is noticeable at age 50. It becomes an <strong>in</strong>creas<strong>in</strong>g<br />

challenge to designers to consider “ag<strong>in</strong>g eyes” when<br />

Where Research Informs Design®

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