Validation of the ADAMO Care Watch for step counting in older adults
Accurate measurement devices are required to objectively quantify physical activity. Wearable activity monitors, such as pedometers, may serve as affordable and feasible instruments for measuring physical activity levels in older adults during their normal activities of daily living. Currently few a...
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| description | Accurate measurement devices are required to objectively quantify physical activity. Wearable activity monitors, such as pedometers, may serve as affordable and feasible instruments for measuring physical activity levels in older adults during their normal activities of daily living. Currently few available accelerometer-based steps counting devices have been shown to be accurate at slow walking speeds, therefore there is still lacking appropriate devices tailored for slow speed ambulation, typical of older adults. This study aimed to assess the validity of step counting using the pedometer function of the ADAMO Care Watch, containing an embedded algorithm for measuring physical activity in older adults.
Twenty older adults aged ≥ 65 years (mean ± SD, 75±7 years; range, 68-91) and 20 young adults (25±5 years, range 20-40), wore a care watch on each wrist and performed a number of randomly ordered tasks: walking at slow, normal and fast self-paced speeds; a Timed Up and Go test (TUG); a step test and ascending/descending stairs. The criterion measure was the actual number of steps observed, counted with a manual tally counter. Absolute percentage error scores, Intraclass Correlation Coefficients (ICC), and Bland-Altman plots were used to assess validity.
ADAMO Care Watch demonstrated high validity during slow and normal speeds (range 0.5-1.5 m/s) showing an absolute error from 1.3% to 1.9% in the older adult group and from 0.7% to 2.7% in the young adult group. The percentage error for the 30-metre walking tasks increased with faster pace in both young adult (17%) and older adult groups (6%). In the TUG test, there was less error in the steps recorded for older adults (1.3% to 2.2%) than the young adults (6.6% to 7.2%). For the total sample, the ICCs for the ADAMO Care Watch for the 30-metre walking tasks at each speed and for the TUG test were ranged between 0.931 to 0.985.
These findings provide evidence that the ADAMO Care Watch demonstrated highly accurate measurements of the steps count in all activities, particularly walking at normal and slow speeds. Therefore, these data support the inclusion of the ADAMO Care Watch in clinical applications for measuring the number of steps taken by older adults at normal, slow walking speeds. |
| doi_str_mv | 10.1371/journal.pone.0190753 |
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Twenty older adults aged ≥ 65 years (mean ± SD, 75±7 years; range, 68-91) and 20 young adults (25±5 years, range 20-40), wore a care watch on each wrist and performed a number of randomly ordered tasks: walking at slow, normal and fast self-paced speeds; a Timed Up and Go test (TUG); a step test and ascending/descending stairs. The criterion measure was the actual number of steps observed, counted with a manual tally counter. Absolute percentage error scores, Intraclass Correlation Coefficients (ICC), and Bland-Altman plots were used to assess validity.
ADAMO Care Watch demonstrated high validity during slow and normal speeds (range 0.5-1.5 m/s) showing an absolute error from 1.3% to 1.9% in the older adult group and from 0.7% to 2.7% in the young adult group. The percentage error for the 30-metre walking tasks increased with faster pace in both young adult (17%) and older adult groups (6%). In the TUG test, there was less error in the steps recorded for older adults (1.3% to 2.2%) than the young adults (6.6% to 7.2%). For the total sample, the ICCs for the ADAMO Care Watch for the 30-metre walking tasks at each speed and for the TUG test were ranged between 0.931 to 0.985.
These findings provide evidence that the ADAMO Care Watch demonstrated highly accurate measurements of the steps count in all activities, particularly walking at normal and slow speeds. Therefore, these data support the inclusion of the ADAMO Care Watch in clinical applications for measuring the number of steps taken by older adults at normal, slow walking speeds.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0190753</identifier><identifier>PMID: 29425196</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Accelerometers ; Accuracy ; Activities of daily living ; Adults ; Biology and Life Sciences ; Body measurements ; Correlation analysis ; Correlation coefficient ; Correlation coefficients ; Counting ; Engineering and Technology ; Errors ; Exercise ; Health sciences ; Lifestyles ; Measuring instruments ; Medicine and Health Sciences ; Methods ; Older people ; People and Places ; Physical activity ; Physical fitness ; Research and Analysis Methods ; Stairways ; Therapeutic applications ; Walking ; Wrist ; Young adults</subject><ispartof>PloS one, 2018-02, Vol.13 (2), p.e0190753-e0190753</ispartof><rights>2018 Magistro et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2018 Magistro et al 2018 Magistro et al</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c526t-f85edaa67d15a841bcb19266dd1d3fe055caed077a23a08733cdd608c7a4b8333</citedby><cites>FETCH-LOGICAL-c526t-f85edaa67d15a841bcb19266dd1d3fe055caed077a23a08733cdd608c7a4b8333</cites><orcidid>0000-0002-2554-3701</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5806873/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5806873/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2102,2928,23866,27924,27925,53791,53793,79472,79473</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29425196$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Webber, Sandra</contributor><creatorcontrib>Magistro, Daniele</creatorcontrib><creatorcontrib>Brustio, Paolo Riccardo</creatorcontrib><creatorcontrib>Ivaldi, Marco</creatorcontrib><creatorcontrib>Esliger, Dale Winfield</creatorcontrib><creatorcontrib>Zecca, Massimiliano</creatorcontrib><creatorcontrib>Rainoldi, Alberto</creatorcontrib><creatorcontrib>Boccia, Gennaro</creatorcontrib><title>Validation of the ADAMO Care Watch for step counting in older adults</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Accurate measurement devices are required to objectively quantify physical activity. Wearable activity monitors, such as pedometers, may serve as affordable and feasible instruments for measuring physical activity levels in older adults during their normal activities of daily living. Currently few available accelerometer-based steps counting devices have been shown to be accurate at slow walking speeds, therefore there is still lacking appropriate devices tailored for slow speed ambulation, typical of older adults. This study aimed to assess the validity of step counting using the pedometer function of the ADAMO Care Watch, containing an embedded algorithm for measuring physical activity in older adults.
Twenty older adults aged ≥ 65 years (mean ± SD, 75±7 years; range, 68-91) and 20 young adults (25±5 years, range 20-40), wore a care watch on each wrist and performed a number of randomly ordered tasks: walking at slow, normal and fast self-paced speeds; a Timed Up and Go test (TUG); a step test and ascending/descending stairs. The criterion measure was the actual number of steps observed, counted with a manual tally counter. Absolute percentage error scores, Intraclass Correlation Coefficients (ICC), and Bland-Altman plots were used to assess validity.
ADAMO Care Watch demonstrated high validity during slow and normal speeds (range 0.5-1.5 m/s) showing an absolute error from 1.3% to 1.9% in the older adult group and from 0.7% to 2.7% in the young adult group. The percentage error for the 30-metre walking tasks increased with faster pace in both young adult (17%) and older adult groups (6%). In the TUG test, there was less error in the steps recorded for older adults (1.3% to 2.2%) than the young adults (6.6% to 7.2%). For the total sample, the ICCs for the ADAMO Care Watch for the 30-metre walking tasks at each speed and for the TUG test were ranged between 0.931 to 0.985.
These findings provide evidence that the ADAMO Care Watch demonstrated highly accurate measurements of the steps count in all activities, particularly walking at normal and slow speeds. Therefore, these data support the inclusion of the ADAMO Care Watch in clinical applications for measuring the number of steps taken by older adults at normal, slow walking speeds.</description><subject>Accelerometers</subject><subject>Accuracy</subject><subject>Activities of daily living</subject><subject>Adults</subject><subject>Biology and Life Sciences</subject><subject>Body measurements</subject><subject>Correlation analysis</subject><subject>Correlation coefficient</subject><subject>Correlation coefficients</subject><subject>Counting</subject><subject>Engineering and Technology</subject><subject>Errors</subject><subject>Exercise</subject><subject>Health sciences</subject><subject>Lifestyles</subject><subject>Measuring instruments</subject><subject>Medicine and Health Sciences</subject><subject>Methods</subject><subject>Older people</subject><subject>People and Places</subject><subject>Physical activity</subject><subject>Physical fitness</subject><subject>Research and Analysis 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Collection</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>PloS one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Magistro, Daniele</au><au>Brustio, Paolo Riccardo</au><au>Ivaldi, Marco</au><au>Esliger, Dale Winfield</au><au>Zecca, Massimiliano</au><au>Rainoldi, Alberto</au><au>Boccia, Gennaro</au><au>Webber, Sandra</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Validation of the ADAMO Care Watch for step counting in older adults</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2018-02-09</date><risdate>2018</risdate><volume>13</volume><issue>2</issue><spage>e0190753</spage><epage>e0190753</epage><pages>e0190753-e0190753</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Accurate measurement devices are required to objectively quantify physical activity. Wearable activity monitors, such as pedometers, may serve as affordable and feasible instruments for measuring physical activity levels in older adults during their normal activities of daily living. Currently few available accelerometer-based steps counting devices have been shown to be accurate at slow walking speeds, therefore there is still lacking appropriate devices tailored for slow speed ambulation, typical of older adults. This study aimed to assess the validity of step counting using the pedometer function of the ADAMO Care Watch, containing an embedded algorithm for measuring physical activity in older adults.
Twenty older adults aged ≥ 65 years (mean ± SD, 75±7 years; range, 68-91) and 20 young adults (25±5 years, range 20-40), wore a care watch on each wrist and performed a number of randomly ordered tasks: walking at slow, normal and fast self-paced speeds; a Timed Up and Go test (TUG); a step test and ascending/descending stairs. The criterion measure was the actual number of steps observed, counted with a manual tally counter. Absolute percentage error scores, Intraclass Correlation Coefficients (ICC), and Bland-Altman plots were used to assess validity.
ADAMO Care Watch demonstrated high validity during slow and normal speeds (range 0.5-1.5 m/s) showing an absolute error from 1.3% to 1.9% in the older adult group and from 0.7% to 2.7% in the young adult group. The percentage error for the 30-metre walking tasks increased with faster pace in both young adult (17%) and older adult groups (6%). In the TUG test, there was less error in the steps recorded for older adults (1.3% to 2.2%) than the young adults (6.6% to 7.2%). For the total sample, the ICCs for the ADAMO Care Watch for the 30-metre walking tasks at each speed and for the TUG test were ranged between 0.931 to 0.985.
These findings provide evidence that the ADAMO Care Watch demonstrated highly accurate measurements of the steps count in all activities, particularly walking at normal and slow speeds. Therefore, these data support the inclusion of the ADAMO Care Watch in clinical applications for measuring the number of steps taken by older adults at normal, slow walking speeds.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>29425196</pmid><doi>10.1371/journal.pone.0190753</doi><orcidid>https://orcid.org/0000-0002-2554-3701</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Accelerometers Accuracy Activities of daily living Adults Biology and Life Sciences Body measurements Correlation analysis Correlation coefficient Correlation coefficients Counting Engineering and Technology Errors Exercise Health sciences Lifestyles Measuring instruments Medicine and Health Sciences Methods Older people People and Places Physical activity Physical fitness Research and Analysis Methods Stairways Therapeutic applications Walking Wrist Young adults |
| title | Validation of the ADAMO Care Watch for step counting in older adults |
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