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Comparison of pedometer and accelerometer derived steps in older individuals with Parkinson's disease or osteoporosis under free-living conditions

To compare self-reported pedometer steps with accelerometer steps under free-living conditions in individuals with Parkinson's disease (PD) or osteoporosis (OP). Seventy-three individuals with PD and 71 individuals with OP wore a pedometer (Yamax LS2000) and an accelerometer (ActiGraph GT1M/GT3...

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Published in:	Journal of aging and physical activity 2014-10, Vol.22 (4), p.550-556
Main Authors:	Wallén, Martin Benka, Dohrn, Ing-Mari, Ståhle, Agneta, Franzén, Erika, Hagströmer, Maria
Format:	Article
Language:	English
Subjects:	Accelerometers Accelerometry - instrumentation Accelerometry - methods Aged Clinical assessment Clinical research Densitometry - methods Diagnostic Equipment Exercise Female Gait Humans Independent Living Living conditions Male Motor Activity - physiology Movement - physiology Older people Osteoporosis Osteoporosis - diagnosis Osteoporosis - physiopathology Parkinson Disease - diagnosis Parkinson Disease - physiopathology Parkinson's disease Postural Balance - physiology Reproducibility of Results
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container_title	Journal of aging and physical activity
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creator	Wallén, Martin Benka Dohrn, Ing-Mari Ståhle, Agneta Franzén, Erika Hagströmer, Maria
description	To compare self-reported pedometer steps with accelerometer steps under free-living conditions in individuals with Parkinson's disease (PD) or osteoporosis (OP). Seventy-three individuals with PD and 71 individuals with OP wore a pedometer (Yamax LS2000) and an accelerometer (ActiGraph GT1M/GT3X+) simultaneously for one week. Fifty-one individuals with PD (72.6 ± 5.3 years) and 61 with OP (75.6 ± 5.3 years) provided simultaneously recorded data for 3-7 consecutive days. Pedometer steps were significantly lower than accelerometer steps in the PD group (p = .002) but not in the OP group (p = .956). Bland-Altman plots demonstrated wide limits of agreement between the instruments in both PD (range = 6,911 steps) and OP (range = 6,794 steps). These results suggest that the ActiGraph GT1M/GT3X+ should be preferred over the Yamax LS2000 for the assessment of steps in both research and clinical evaluations, particularly in individuals with PD or altered gait.
doi_str_mv	10.1123/japa.2013-0052
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Seventy-three individuals with PD and 71 individuals with OP wore a pedometer (Yamax LS2000) and an accelerometer (ActiGraph GT1M/GT3X+) simultaneously for one week. Fifty-one individuals with PD (72.6 ± 5.3 years) and 61 with OP (75.6 ± 5.3 years) provided simultaneously recorded data for 3-7 consecutive days. Pedometer steps were significantly lower than accelerometer steps in the PD group (p = .002) but not in the OP group (p = .956). Bland-Altman plots demonstrated wide limits of agreement between the instruments in both PD (range = 6,911 steps) and OP (range = 6,794 steps). 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Seventy-three individuals with PD and 71 individuals with OP wore a pedometer (Yamax LS2000) and an accelerometer (ActiGraph GT1M/GT3X+) simultaneously for one week. Fifty-one individuals with PD (72.6 ± 5.3 years) and 61 with OP (75.6 ± 5.3 years) provided simultaneously recorded data for 3-7 consecutive days. Pedometer steps were significantly lower than accelerometer steps in the PD group (p = .002) but not in the OP group (p = .956). Bland-Altman plots demonstrated wide limits of agreement between the instruments in both PD (range = 6,911 steps) and OP (range = 6,794 steps). 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Dohrn, Ing-Mari ; Ståhle, Agneta ; Franzén, Erika ; Hagströmer, Maria</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c439t-3bb0f01804b69a01da069943ab62b582811c184806f43e28e405c5c87f2251173</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Accelerometers</topic><topic>Accelerometry - instrumentation</topic><topic>Accelerometry - methods</topic><topic>Aged</topic><topic>Clinical assessment</topic><topic>Clinical research</topic><topic>Densitometry - methods</topic><topic>Diagnostic Equipment</topic><topic>Exercise</topic><topic>Female</topic><topic>Gait</topic><topic>Humans</topic><topic>Independent Living</topic><topic>Living conditions</topic><topic>Male</topic><topic>Motor Activity - physiology</topic><topic>Movement - physiology</topic><topic>Older people</topic><topic>Osteoporosis</topic><topic>Osteoporosis - diagnosis</topic><topic>Osteoporosis - physiopathology</topic><topic>Parkinson Disease - diagnosis</topic><topic>Parkinson Disease - physiopathology</topic><topic>Parkinson's disease</topic><topic>Postural Balance - physiology</topic><topic>Reproducibility of Results</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wallén, Martin Benka</creatorcontrib><creatorcontrib>Dohrn, Ing-Mari</creatorcontrib><creatorcontrib>Ståhle, Agneta</creatorcontrib><creatorcontrib>Franzén, Erika</creatorcontrib><creatorcontrib>Hagströmer, Maria</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Applied Social Sciences Index & Abstracts (ASSIA)</collection><collection>Physical Education Index</collection><collection>Nursing & Allied Health Premium</collection><collection>MEDLINE - Academic</collection><collection>SwePub</collection><collection>SwePub Articles</collection><jtitle>Journal of aging and physical activity</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wallén, Martin Benka</au><au>Dohrn, Ing-Mari</au><au>Ståhle, Agneta</au><au>Franzén, Erika</au><au>Hagströmer, Maria</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of pedometer and accelerometer derived steps in older individuals with Parkinson's disease or osteoporosis under free-living conditions</atitle><jtitle>Journal of aging and physical activity</jtitle><addtitle>J Aging Phys Act</addtitle><date>2014-10-01</date><risdate>2014</risdate><volume>22</volume><issue>4</issue><spage>550</spage><epage>556</epage><pages>550-556</pages><issn>1063-8652</issn><eissn>1543-267X</eissn><abstract>To compare self-reported pedometer steps with accelerometer steps under free-living conditions in individuals with Parkinson's disease (PD) or osteoporosis (OP). Seventy-three individuals with PD and 71 individuals with OP wore a pedometer (Yamax LS2000) and an accelerometer (ActiGraph GT1M/GT3X+) simultaneously for one week. Fifty-one individuals with PD (72.6 ± 5.3 years) and 61 with OP (75.6 ± 5.3 years) provided simultaneously recorded data for 3-7 consecutive days. Pedometer steps were significantly lower than accelerometer steps in the PD group (p = .002) but not in the OP group (p = .956). Bland-Altman plots demonstrated wide limits of agreement between the instruments in both PD (range = 6,911 steps) and OP (range = 6,794 steps). These results suggest that the ActiGraph GT1M/GT3X+ should be preferred over the Yamax LS2000 for the assessment of steps in both research and clinical evaluations, particularly in individuals with PD or altered gait.</abstract><cop>United States</cop><pub>Human Kinetics</pub><pmid>24306767</pmid><doi>10.1123/japa.2013-0052</doi><tpages>7</tpages></addata></record>
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source	Human Kinetics; Applied Social Sciences Index & Abstracts (ASSIA)
subjects	Accelerometers Accelerometry - instrumentation Accelerometry - methods Aged Clinical assessment Clinical research Densitometry - methods Diagnostic Equipment Exercise Female Gait Humans Independent Living Living conditions Male Motor Activity - physiology Movement - physiology Older people Osteoporosis Osteoporosis - diagnosis Osteoporosis - physiopathology Parkinson Disease - diagnosis Parkinson Disease - physiopathology Parkinson's disease Postural Balance - physiology Reproducibility of Results
title	Comparison of pedometer and accelerometer derived steps in older individuals with Parkinson's disease or osteoporosis under free-living conditions
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