The University of Southampton
University of Southampton Institutional Repository

Occupational physical activities and osteoarthritis of the knee

Occupational physical activities and osteoarthritis of the knee
Occupational physical activities and osteoarthritis of the knee
Objective: to assess the risk of knee osteoarthritis (OA) associated with kneeling, squatting, and other occupational activities.
Methods: we compared 518 patients who were listed for surgical treatment of knee OA and an equal number of control subjects from the same communities who were matched for sex and age. Histories of knee injury and occupational activities were ascertained at interview, height and weight were measured, and the hands were examined for Heberden's nodes. Data were analyzed by conditional logistic regression.
Results: after adjustment for body mass index (BMI), history of knee injury, and the presence of Heberden's nodes, risk was elevated in subjects who reported prolonged kneeling or squatting (odds ratio [OR] 1.9; 95% confidence interval [95% CI] 1.3-2.8), walking >2 miles/day (OR 1.9; 95% CI 1.4-2.8), and regularly lifting weights of at least 25 kg (OR 1.7; 95% CI 1.2-2.6) in the course of their work. The risks associated with kneeling and squatting were higher in subjects who also reported occupational lifting, and appeared to interact multiplicatively with the risk conferred by obesity. People with a BMI of 30 kg/m2 whose work had entailed prolonged kneeling or squatting had an OR of 14.7 (95% CI 7.2-30.2), compared with subjects with a BMI <25 kg/m2 who were not exposed to occupational kneeling or squatting.
Conclusion: there is now strong evidence for an occupational hazard of knee OA resulting from prolonged kneeling and squatting. One approach to reducing this risk may lie in the avoidance of obesity in people who perform this sort of work.
0004-3591
1443-1449
Coggon, D.
2b43ce0a-cc61-4d86-b15d-794208ffa5d3
Croft, P.
8faa5d3f-d4d6-4b68-b7fa-b4b284768b41
Kellingray, S.
418e1aef-0230-450a-a9b7-ba8cf0e7fba9
Barrett, D.S.
cbaaf354-cc75-42d4-980c-0a8797db5b4c
McLaren, M.
6834d2c6-7c6e-4d16-a4d9-ebd1bd35956f
Cooper, C.
e05f5612-b493-4273-9b71-9e0ce32bdad6
Coggon, D.
2b43ce0a-cc61-4d86-b15d-794208ffa5d3
Croft, P.
8faa5d3f-d4d6-4b68-b7fa-b4b284768b41
Kellingray, S.
418e1aef-0230-450a-a9b7-ba8cf0e7fba9
Barrett, D.S.
cbaaf354-cc75-42d4-980c-0a8797db5b4c
McLaren, M.
6834d2c6-7c6e-4d16-a4d9-ebd1bd35956f
Cooper, C.
e05f5612-b493-4273-9b71-9e0ce32bdad6

Coggon, D., Croft, P., Kellingray, S., Barrett, D.S., McLaren, M. and Cooper, C. (2000) Occupational physical activities and osteoarthritis of the knee. Arthritis & Rheumatism, 43 (7), 1443-1449. (doi:10.1002/1529-0131(200007)43:7<1443::AID-ANR5>3.0.CO;2-1).

Record type: Article

Abstract

Objective: to assess the risk of knee osteoarthritis (OA) associated with kneeling, squatting, and other occupational activities.
Methods: we compared 518 patients who were listed for surgical treatment of knee OA and an equal number of control subjects from the same communities who were matched for sex and age. Histories of knee injury and occupational activities were ascertained at interview, height and weight were measured, and the hands were examined for Heberden's nodes. Data were analyzed by conditional logistic regression.
Results: after adjustment for body mass index (BMI), history of knee injury, and the presence of Heberden's nodes, risk was elevated in subjects who reported prolonged kneeling or squatting (odds ratio [OR] 1.9; 95% confidence interval [95% CI] 1.3-2.8), walking >2 miles/day (OR 1.9; 95% CI 1.4-2.8), and regularly lifting weights of at least 25 kg (OR 1.7; 95% CI 1.2-2.6) in the course of their work. The risks associated with kneeling and squatting were higher in subjects who also reported occupational lifting, and appeared to interact multiplicatively with the risk conferred by obesity. People with a BMI of 30 kg/m2 whose work had entailed prolonged kneeling or squatting had an OR of 14.7 (95% CI 7.2-30.2), compared with subjects with a BMI <25 kg/m2 who were not exposed to occupational kneeling or squatting.
Conclusion: there is now strong evidence for an occupational hazard of knee OA resulting from prolonged kneeling and squatting. One approach to reducing this risk may lie in the avoidance of obesity in people who perform this sort of work.

Full text not available from this repository.

More information

Published date: 2000
Organisations: Medicine, Engineering Sciences

Identifiers

Local EPrints ID: 21398
URI: https://eprints.soton.ac.uk/id/eprint/21398
ISSN: 0004-3591
PURE UUID: d94cc2dc-33df-46b6-a1b0-4d2431a88f5b
ORCID for D. Coggon: ORCID iD orcid.org/0000-0003-1930-3987
ORCID for C. Cooper: ORCID iD orcid.org/0000-0003-3510-0709

Catalogue record

Date deposited: 06 Feb 2007
Last modified: 06 Jun 2018 13:02

Export record

Altmetrics

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×