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A diagnosis of knee osteoarthritis does not predict physical activity two years later in older adults: findings from the Hertfordshire Cohort Study

A diagnosis of knee osteoarthritis does not predict physical activity two years later in older adults: findings from the Hertfordshire Cohort Study
A diagnosis of knee osteoarthritis does not predict physical activity two years later in older adults: findings from the Hertfordshire Cohort Study
Osteoarthritis (OA) can negatively impact levels of physical activity (PA), although current clinical advice promotes the benefits of staying active in preventing joint degeneration. In this study, we examine how knee OA, assessed by self-report, clinical assessment and radiographic assessment, impacts upon objectively measured PA 2 years later. The study population is comprised of 114 subjects from the Hertfordshire Cohort Study (HCS). The presence of OA at the knee was determined from self-report, and clinical and radiological examination, defined according to American College of Rheumatology (ACR) criteria and Kellgren and Lawrence grading system. Two years later, Gulf Coast Data Concepts (GCDC) tri-axial accelerometers were used to measure day-to-day levels of PA. Vertical acceleration peaks over 7 days, expressed in g units, were categorised into low (0.5 ≤ g < 1.0), medium (1.0 ≤ g < 1.5) and high (≥ 1.5 g) impacts. The study comprises 69 men and 45 women. The mean (SD) age was 78.5 (2.6) for men and 78.6 (2.7) for women. Low count numbers were recorded in the medium and high impact bands. We found no significant reduction in low, medium or high impacts in individuals who had been previously diagnosed with self-reported, radiographic or clinical knee OA in this sample after adjustment for age, sex and BMI. In our cohort, participants with knee OA were no less likely to partake in objectively measured weight-bearing activity 2 years after assessment than counterparts without a diagnosis of knee OA.
0172-8172
1405-1411
Clynes, Michael
b860d3b7-12ee-42b8-8cd5-1e1abfccbee2
Parsons, Camille
9730e5c3-0382-4ed7-8eaa-6932ab09ec15
Edwards, Mark
06c1db44-4341-455e-8812-0ab4a1043828
Tobias, Jonathan H.
514342d7-3491-4a7b-bbeb-b00dcf244daa
Deere, Kevin C.
b105adce-b002-46af-ac92-d2a4ee416d60
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Clynes, Michael
b860d3b7-12ee-42b8-8cd5-1e1abfccbee2
Parsons, Camille
9730e5c3-0382-4ed7-8eaa-6932ab09ec15
Edwards, Mark
06c1db44-4341-455e-8812-0ab4a1043828
Tobias, Jonathan H.
514342d7-3491-4a7b-bbeb-b00dcf244daa
Deere, Kevin C.
b105adce-b002-46af-ac92-d2a4ee416d60
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1

Clynes, Michael, Parsons, Camille, Edwards, Mark, Tobias, Jonathan H., Deere, Kevin C., Cooper, Cyrus and Dennison, Elaine (2019) A diagnosis of knee osteoarthritis does not predict physical activity two years later in older adults: findings from the Hertfordshire Cohort Study. Rheumatology International, 39 (8), 1405-1411. (doi:10.1007/s00296-019-04309-5).

Record type: Article

Abstract

Osteoarthritis (OA) can negatively impact levels of physical activity (PA), although current clinical advice promotes the benefits of staying active in preventing joint degeneration. In this study, we examine how knee OA, assessed by self-report, clinical assessment and radiographic assessment, impacts upon objectively measured PA 2 years later. The study population is comprised of 114 subjects from the Hertfordshire Cohort Study (HCS). The presence of OA at the knee was determined from self-report, and clinical and radiological examination, defined according to American College of Rheumatology (ACR) criteria and Kellgren and Lawrence grading system. Two years later, Gulf Coast Data Concepts (GCDC) tri-axial accelerometers were used to measure day-to-day levels of PA. Vertical acceleration peaks over 7 days, expressed in g units, were categorised into low (0.5 ≤ g < 1.0), medium (1.0 ≤ g < 1.5) and high (≥ 1.5 g) impacts. The study comprises 69 men and 45 women. The mean (SD) age was 78.5 (2.6) for men and 78.6 (2.7) for women. Low count numbers were recorded in the medium and high impact bands. We found no significant reduction in low, medium or high impacts in individuals who had been previously diagnosed with self-reported, radiographic or clinical knee OA in this sample after adjustment for age, sex and BMI. In our cohort, participants with knee OA were no less likely to partake in objectively measured weight-bearing activity 2 years after assessment than counterparts without a diagnosis of knee OA.

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Accepted/In Press date: 16 April 2019
e-pub ahead of print date: 29 April 2019
Published date: 1 August 2019

Identifiers

Local EPrints ID: 430757
URI: http://eprints.soton.ac.uk/id/eprint/430757
ISSN: 0172-8172
PURE UUID: 00296516-261a-456f-ab05-192aa15da411
ORCID for Michael Clynes: ORCID iD orcid.org/0000-0001-7597-7658
ORCID for Cyrus Cooper: ORCID iD orcid.org/0000-0003-3510-0709
ORCID for Elaine Dennison: ORCID iD orcid.org/0000-0002-3048-4961

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Date deposited: 10 May 2019 16:30
Last modified: 22 Nov 2021 07:21

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Contributors

Author: Michael Clynes ORCID iD
Author: Camille Parsons
Author: Mark Edwards
Author: Jonathan H. Tobias
Author: Kevin C. Deere
Author: Cyrus Cooper ORCID iD
Author: Elaine Dennison ORCID iD

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