Evidence map›Paper›PMID 23730539›Full record

ArticleJournal of obesity & weight loss therapy2011

Evaluation of the Accuracy of a Triaxial Accelerometer Embedded into a Cell Phone Platform for Measuring Physical Activity.

C U Manohar, S K McCrady, Y Fujiki, I T Pavlidis, J A Levine

Open access · hybridAbstract read
In one paragraph

Article in Journal of obesity & weight loss therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.9field-weighted citation impact, top 25% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
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  3. Article
  4. Article
  5. Article
  6. Article
  7. Mobile Jump Assessment (mJump): A Descriptive and Inferential Study.JMIR rehabilitation and assistive technologies · 2015
    Article
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  9. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

C U ManoharCase School of Medicine, Case Western Reserve University, Cleveland OH 44106.
S K McCrady
Y Fujiki
I T Pavlidis
J A Levine
Case Western Reserve University · US

Funding

MAYO CLINIC CENTER FOR TRANSLATIONAL SCIENCE ACTIVITIESUL1RR024150 · NCRR · MAYO CLINIC ROCHESTER · PI RIZZA, ROBERT A. · 2006 to 2011
$66.4M
Obesity and Energy Metabolism CoreP30DK050456 · NIDDK · UNIVERSITY OF MINNESOTA TWIN CITIES · PI BERNLOHR, DAVID A · 1995 to 2015
$17.0M
Nutritional Restriction and Activity ThermogenesisR01DK063226 · NIDDK · MAYO CLINIC ROCHESTER · PI LEVINE, JAMES A · 2003 to 2007
$2.8M
Instruments for measuring physical activityR01DK066270 · NIDDK · MAYO CLINIC ROCHESTER · PI LEVINE, JAMES A · 2004 to 2008
$1.3M
NCRR NIH HHS UL1 RR024150NIDDK NIH HHS P30 DK050456NIDDK NIH HHS R01 DK063226NIDDK NIH HHS R01 DK066270
6 · The paper itself

Abstract

backgroundPhysical activity is important in health and weight management. Several cell phone platforms integrate an accelerometer onto the motherboard. Here we tested the validity of the cell phone accelerometer to assess physical activity in a controlled laboratory setting.

methods31 subjects wore the cell phone on their waist along with the validated Physical Activity Monitoring System (PAMS) with different body postures and during graded walking. Energy expenditure was measured using indirect calorimetry. 11 subjects also wore the iPhone at different locations such as arm, hand, pant pocket, etc.

resultsThe cell phone accelerometer was accurate and precise compared to the PAMS, with an intra-class correlation coefficient (r

conclusionAn accelerometer embedded into a cell phone was accurate and reliable in measuring and quantifying physical activity in the laboratory setting. Data from free-living users shows promise for deployment of a comprehensive integrated physical activity promoting and weight loss platform using such mobile technologies.

Indexed as

Energy expenditureObesityPhysical activityWeight loss

Identifiers

PMID23730539
PMCPMC3667221
OpenAlexW2162043328

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.