Fraser, BJ and Alishah, Z and Magnussen, CG and Venn, AJ and Dwyer, T and Cleland, V, Factors associated with change and stability in adherence to muscle-strengthening guidelines among young Australian adults: A longitudinal study, Journal of Science and Medicine in Sport Article online ahead of publication. ISSN 1440-2440 (2021) [Refereed Article]
Copyright 2021 Sports Medicine Australia
Objectives: The 2014 Australian Physical Activity and Sedentary Behaviour Guidelines (Adults) recommend muscle-strengthening activities ≥2 days/week. This study aimed to identify factors associated with 5-year change and stability in adherence to these guidelines.
Design: Two adult follow-ups of the Childhood Determinants of Adult Health (CDAH) Study. Participants (n = 1510) were 26-36 years (CDAH-1, 2004-06) and 31-41 years (CDAH-2, 2009-11).
Methods: Information on muscle-strengthening activities, sociodemographics, health, physical activity and sedentary behaviour was collected. Participants reporting muscle-strengthening activities ≥2 days/week 'met guidelines', with change and stability categorised as 'persistent adherence', 'increasing adherence', 'decreasing adherence' and 'persistent non-adherence'. Differences in sociodemographic, health and behavioural factors were analysed using log multinomial regression.
Results: Between 15-21% of women (CDAH-1: 14.5%, 95% confidence interval = 12.5-16.9; CDAH-2: 20.7%, 95% confidence interval = 18.3-23.4) and ~21% of men (CDAH-1: 22.2%, 95% confidence interval = 19.0-26.0; CDAH-2: 21.0%, 95% confidence interval = 17.8-24.7) met muscle-strengthening guidelines, but only 8.5% (95% confidence interval = 7.2-10.1) of participants were persistently adherent. Remaining in or moving from a major city, CDAH-1 weight status, cumulative self-rated health and vigorous physical activity were positively associated with persistent adherence (relative risk range = 1.51-3.92), while female gender, becoming partnered and having children at any timepoint were negatively associated with persistent adherence (relative risk range = 0.38-0.58).
Conclusions: Adherence - particularly persistent adherence - to muscle-strengthening guidelines in this sample was low. Gender, marital status, weight status, BMI, self-rated health, urban-rural status, parental status, physical activity and sedentary behaviour were associated with adherence, and should be considered in intervention development to maximise effectiveness.
|Item Type:||Refereed Article|
|Keywords:||cohort study, exercise, guidelines, muscle strength, physical activity, public health|
|Research Division:||Health Sciences|
|Research Group:||Sports science and exercise|
|Research Field:||Exercise physiology|
|Objective Group:||Evaluation of health and support services|
|Objective Field:||Evaluation of health outcomes|
|UTAS Author:||Fraser, BJ (Dr Brooklyn Fraser)|
|UTAS Author:||Magnussen, CG (Associate Professor Costan Magnussen)|
|UTAS Author:||Venn, AJ (Professor Alison Venn)|
|UTAS Author:||Cleland, V (Associate Professor Verity Cleland)|
|Deposited By:||Menzies Institute for Medical Research|
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