Evidence map›Paper›PMID 34736096›Full record

ArticleGait & posture2022

Surrogates for rigidity and PIGD MDS-UPDRS subscores using wearable sensors.

Delaram Safarpour, Marian L Dale, Vrutangkumar V Shah, Lauren Talman, Patricia Carlson-Kuhta, Fay B Horak, Martina Mancini

Abstract read
In one paragraph

Article in Gait & posture, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

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3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

7 authors.

Delaram SafarpourDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.
Marian L DaleDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA. Electronic address: dalem@ohsu.edu.
Vrutangkumar V ShahDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.
Lauren TalmanDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.
Patricia Carlson-KuhtaDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.
Fay B HorakDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.
Martina ManciniDepartment of Neurology, Oregon Health & Science University, Portland, OR, USA.

Funding

Techniques DevelopmentP2CHD086844 · NICHD · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KAUTZ, STEVEN A. · 2015 to 2024
$12.7M
Oregon Clinical and Translational Research Institute KL2 SupplementKL2TR002370 · NCATS · OREGON HEALTH & SCIENCE UNIVERSITY · PI Catherine Lee Hough · 2017 to 2026
$10.1M
Mobility Life: Monitoring Mobility in Daily Lives of People with Neurological DiseaseR44AG055388 · NIA · APDM, INC. · PI EL-GOHARY, MAHMOUD, HORAK, FAY BAHLING · 2016 to 2019
$2.9M
Mobility in Daily Life and Falls in Parkinson's Disease: Potential for RehabilitationR01HD100383 · NICHD · OREGON HEALTH & SCIENCE UNIVERSITY · PI HORAK, FAY BAHLING, MANCINI, MARTINA · 2020 to 2024
$2.6M
NCATS NIH HHS KL2 TR002370NIA NIH HHS R44 AG055388NICHD NIH HHS P2C HD086844NICHD NIH HHS R01 HD100383NINDS NIH HHS L30 NS098415
6 · The paper itself

Abstract

backgroundTelemedicine has the advantage of expanding access to care for patients with Parkinson's Disease (PD). However, rigidity and postural instability in PD are difficult to measure remotely, and are important measures of functional impairment and fall risk. RESEARCH QUESTION: Can measures from wearable sensors be used as future surrogates for the MDS-UPDRS rigidity and Postural Instability and Gait Difficulty (PIGD) subscores?

methodsThirty-one individuals with mild to moderate PD wore 3 inertial sensors at home for one week to measure quantity and quality of gait and turning in daily life. Separately, we performed a clinical assessment and balance characterization of postural sway with the same wearable sensors in the laboratory (On medication). We then first performed a traditional correlation analysis between clinical scores and objective measures of gait and balance followed by multivariable linear regression employing a best subset selection strategy.

resultsThe number of walking bouts and turns correlated significantly with the rigidity subscore, while the number of turns, foot pitch angle, and sway area while standing correlated significantly with the PIGD subscore (p < 0.05). The multivariable linear regression showed that rigidity subscore was best predicted by the number of walking bouts while the PIGD subscore was best predicted by a combination of number of walking bouts, gait speed, and postural sway. SIGNIFICANCE: The correlation between objective sensor data and MDS-UPDRS rigidity and PIGD scores paves the way for future larger studies that evaluate use of objective sensor data to supplement remote MDS-UPDRS assessment.

Indexed as

Gait Disorders, NeurologicParkinson DiseaseWearable Electronic DevicesGaitHumansPostural BalanceParkinson’sPostural instabilityRigidityTelehealthUPDRS

Identifiers

PMID34736096
PMCPMC8671321

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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.