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. 2022 Dec 2:17:1769-1778.
doi: 10.2147/CIA.S353573. eCollection 2022.

Knowledge of Nutrition and Physical Activity Guidelines is Not Associated with Physical Function in Dutch Older Adults Attending a Healthy Ageing Public Engagement Event

Keenan A Ramsey  1 , Suey S Y Yeung  1 , Anna G M Rojer  1 , Noémie Gensous  2 , Evans A Asamane  3 , Justin Avery Aunger  3 , Dmitriy Bondarev  4 , Andrea Cabbia  5 , Paul Doody  3 , Barbara Iadarola  6   7 , Belina Rodrigues  8   9 , Muhammad R Tahir  10 , Victor Kallen  10 , Paola Pazienza  6   7 , Nadine Correia Santos  8   9 , Sarianna Sipilä  4 , Janice L Thompson  3 , Carel G M Meskers  1   11 , Marijke C Trappenburg  12   13 , Anna C Whittaker  14 , Andrea B Maier  1   15   16   17
Affiliations

Knowledge of Nutrition and Physical Activity Guidelines is Not Associated with Physical Function in Dutch Older Adults Attending a Healthy Ageing Public Engagement Event

Keenan A Ramsey et al. Clin Interv Aging. .

Abstract

Purpose: Evidence-based guidelines on nutrition and physical activity are used to increase knowledge in order to promote a healthy lifestyle. However, actual knowledge of guidelines is limited and whether it is associated with health outcomes is unclear.

Participants and methods: This inception cohort study aimed to investigate the association of knowledge of nutrition and physical activity guidelines with objective measures of physical function and physical activity in community-dwelling older adults attending a public engagement event in Amsterdam, The Netherlands. Knowledge of nutrition and physical activity according to Dutch guidelines was assessed using customized questionnaires. Gait speed and handgrip strength were proxies of physical function and the Minnesota Leisure Time Physical Activity Questionnaire was used to assess physical activity in minutes/week. Linear regression analysis, stratified by gender and adjusted for age, was used to study the association between continuous and categorical knowledge scores with outcomes.

Results: In 106 older adults (mean age=70.1 SD=6.6, years) who were highly educated, well-functioning, and generally healthy, there were distinct knowledge gaps in nutrition and physical activity which did not correlate with one another (R2=0.013, p=0.245). Knowledge of nutrition or physical activity guidelines was not associated with physical function or physical activity. However, before age-adjustment nutrition knowledge was positively associated with HGS in males (B= 0.64 (95% CI: 0.05, 1.22)) and having knowledge above the median was associated with faster gait speed in females (B=0.10 (95% CI: 0.01, 0.19)).

Conclusion: Our findings may represent a ceiling effect of the impact knowledge has on physical function and activity in the this high performing and educated population and that there may be other determinants of behavior leading to health status such as attitude and perception to consider in future studies.

Keywords: aged; attitudes; health knowledge; lifestyle; physical performance; practice.

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Conflict of interest statement

Professor Janice Thompson reports grants from European Commission, during the conduct of the study. The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Scatterplot of weighted nutrition and physical activity scores. Marker size (scale) represents the number of participants.
See this image and copyright information in PMC

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