Accelerometer-measured physical activity is associated with knee breadth in middle-aged Finns - a population-based study

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Junno , J-A , Keisu , A , Niemelä , M , Modarress Julin , M , Korpelainen , R , Jämsä , T , Niinimäki , J , Lehenkari , P & Oura , P 2022 , ' Accelerometer-measured physical activity is associated with knee breadth in middle-aged Finns - a population-based study ' , BMC Musculoskeletal Disorders , vol. 23 , no. 1 , 517 . https://doi.org/10.1186/s12891-022-05475-7

Title: Accelerometer-measured physical activity is associated with knee breadth in middle-aged Finns - a population-based study
Author: Junno, Juho-Antti; Keisu, Asla; Niemelä, Maisa; Modarress Julin, Marella; Korpelainen, Raija; Jämsä, Timo; Niinimäki, Jaakko; Lehenkari, Petri; Oura, Petteri
Contributor organization: Department of Forensic Medicine
Faculty of Medicine
Date: 2022-05-31
Language: eng
Number of pages: 7
Belongs to series: BMC Musculoskeletal Disorders
ISSN: 1471-2474
DOI: https://doi.org/10.1186/s12891-022-05475-7
URI: http://hdl.handle.net/10138/345937
Abstract: Background: Articular surface size is traditionally considered to be a relatively stable trait throughout adulthood. Increased joint size reduces bone and cartilage tissue strains. Although physical activity (PA) has a clear association with diaphyseal morphology, the association between PA and articular surface size is yet to be confirmed. This cross-sectional study aimed to clarify the role of moderate-to-vigorous PA (MVPA) in knee morphology in terms of tibiofemoral joint size. Methods: A sample of 1508 individuals from the population-based Northern Finland Birth Cohort 1966 was used. At the age of 46, wrist-worn accelerometers were used to monitor MVPA (≥3.5 METs) during a period of two weeks, and knee radiographs were used to obtain three knee breadth measurements (femoral biepicondylar breadth, mediolateral breadth of femoral condyles, mediolateral breadth of the tibial plateau). The association between MVPA and knee breadth was analyzed using general linear models with adjustments for body mass index, smoking, education years, and accelerometer weartime. Results: Of the sample, 54.8% were women. Most individuals were non-smokers (54.6%) and had 9-12 years of education (69.6%). Mean body mass index was 26.2 (standard deviation 4.3) kg/m2. MVPA was uniformly associated with all three knee breadth measurements among both women and men. For each 60 minutes/day of MVPA, the knee breadth dimensions were 1.8-2.0% (or 1.26-1.42 mm) larger among women (p < 0.001) and 1.4-1.6% (or 1.21-1.28 mm) larger among men (p < 0.001). Conclusions: Higher MVPA is associated with larger tibiofemoral joint size. Our findings indicate that MVPA could potentially increase knee dimensions through similar biomechanical mechanisms it affects diaphyseal morphology, thus offering a potential target in reducing tissue strains and preventing knee problems. Further studies are needed to confirm and investigate the association between articulation area and musculoskeletal health.
Subject: Accelerometer
Anthropometry
BONE SIZE
EXERCISE
Epidemiology
Finland
Knee
MASS
Radiography
3126 Surgery, anesthesiology, intensive care, radiology
Peer reviewed: Yes
Rights: cc_by
Usage restriction: openAccess
Self-archived version: publishedVersion


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