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Jumping Joints: the complex relationship between osteoarthritis and jumping mechanography

Jumping Joints: the complex relationship between osteoarthritis and jumping mechanography
Jumping Joints: the complex relationship between osteoarthritis and jumping mechanography
We investigated the relationship between lower limb osteoarthritis (OA) and muscle strength and power (assessed by jumping mechanography) in UK community-dwelling older adults. We recruited 249 older adults (144 males, 105 females). OA was assessed clinically at the knee according to ACR criteria and radiographically, at the knee and hip, using Kellgren and Lawrence grading. Two-footed jumping tests were performed using a Leonardo Mechanography Ground Reaction Force Platform to assess maximum muscle force, power and Esslinger Fitness Index. Linear regression was used to assess the relationship between OA and jumping outcomes. Results are presented as β (95% confidence interval). The mean age of participants was 75.2 years (SD 2.6). Males had a significantly higher maximum relative power during lift off (mean 25.7 W/kg vs. 19.9 W/kg) and maximum total force during lift off (mean 21.0 N/kg vs. 19.1 N/kg) than females. In adjusted models, we found significant associations in males between clinical knee OA and maximum relative power [− 6.00 (CI − 9.10, − 2.94)] and Esslinger Fitness Index [− 19.3 (− 29.0, − 9.7)]. In females, radiographic knee OA was associated with total maximum power [− 2.0 (− 3.9, − 0.1)] and Esslinger Fitness Index [− 8.2 (− 15.9, − 0.4)]. No significant associations were observed for maximum total force. We observed significant negative associations between maximum relative power and Esslinger Fitness Index and clinical knee OA in males and radiographic knee OA in females. We have used novel methodology to demonstrate relationships between muscle function and OA in older adults.
0171-967X
1-9
Shere, Clare
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Fuggle, Nicholas
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Edwards, Mark
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Parsons, Camille
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Jameson, Karen
d5fb142d-06af-456e-9016-17497f94e9f2
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Ward, Kathryn
39bd4db1-c948-4e32-930e-7bec8deb54c7
Shere, Clare
baded3fd-6bce-4a41-8a8c-aad48a8a7c6f
Fuggle, Nicholas
9ab0c81a-ac67-41c4-8860-23e0fdb1a900
Edwards, Mark
b81ff294-1d16-4a1b-af14-9374c5989d4c
Parsons, Camille
9730e5c3-0382-4ed7-8eaa-6932ab09ec15
Jameson, Karen
d5fb142d-06af-456e-9016-17497f94e9f2
Cooper, Cyrus
e05f5612-b493-4273-9b71-9e0ce32bdad6
Dennison, Elaine
ee647287-edb4-4392-8361-e59fd505b1d1
Ward, Kathryn
39bd4db1-c948-4e32-930e-7bec8deb54c7

Shere, Clare, Fuggle, Nicholas, Edwards, Mark, Parsons, Camille, Jameson, Karen, Cooper, Cyrus, Dennison, Elaine and Ward, Kathryn (2019) Jumping Joints: the complex relationship between osteoarthritis and jumping mechanography. Calcified Tissue International, 1-9. (doi:10.1007/s00223-019-00622-0).

Record type: Article

Abstract

We investigated the relationship between lower limb osteoarthritis (OA) and muscle strength and power (assessed by jumping mechanography) in UK community-dwelling older adults. We recruited 249 older adults (144 males, 105 females). OA was assessed clinically at the knee according to ACR criteria and radiographically, at the knee and hip, using Kellgren and Lawrence grading. Two-footed jumping tests were performed using a Leonardo Mechanography Ground Reaction Force Platform to assess maximum muscle force, power and Esslinger Fitness Index. Linear regression was used to assess the relationship between OA and jumping outcomes. Results are presented as β (95% confidence interval). The mean age of participants was 75.2 years (SD 2.6). Males had a significantly higher maximum relative power during lift off (mean 25.7 W/kg vs. 19.9 W/kg) and maximum total force during lift off (mean 21.0 N/kg vs. 19.1 N/kg) than females. In adjusted models, we found significant associations in males between clinical knee OA and maximum relative power [− 6.00 (CI − 9.10, − 2.94)] and Esslinger Fitness Index [− 19.3 (− 29.0, − 9.7)]. In females, radiographic knee OA was associated with total maximum power [− 2.0 (− 3.9, − 0.1)] and Esslinger Fitness Index [− 8.2 (− 15.9, − 0.4)]. No significant associations were observed for maximum total force. We observed significant negative associations between maximum relative power and Esslinger Fitness Index and clinical knee OA in males and radiographic knee OA in females. We have used novel methodology to demonstrate relationships between muscle function and OA in older adults.

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Jumping Joints manuscript 12_09_19 CTI Resubmission (clean) - Accepted Manuscript
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More information

Accepted/In Press date: 9 October 2019
e-pub ahead of print date: 26 October 2019

Identifiers

Local EPrints ID: 435091
URI: http://eprints.soton.ac.uk/id/eprint/435091
ISSN: 0171-967X
PURE UUID: bc42de29-859c-489b-b181-6d0e0e0d9c73
ORCID for Cyrus Cooper: ORCID iD orcid.org/0000-0003-3510-0709
ORCID for Elaine Dennison: ORCID iD orcid.org/0000-0002-3048-4961
ORCID for Kathryn Ward: ORCID iD orcid.org/0000-0001-7034-6750

Catalogue record

Date deposited: 22 Oct 2019 16:30
Last modified: 26 Nov 2021 05:35

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Contributors

Author: Clare Shere
Author: Nicholas Fuggle
Author: Mark Edwards
Author: Camille Parsons
Author: Karen Jameson
Author: Cyrus Cooper ORCID iD
Author: Elaine Dennison ORCID iD
Author: Kathryn Ward ORCID iD

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