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Open AccessArticle

Independent and Joint Associations of Physical Activity and Dietary Behavior with Older Adults’ Lower Limb Strength

1
Department of Health Promotion and Health Education, National Taiwan Normal University, 162, Heping East Road Section 1, Taipei 106, Taiwan
2
Graduate School of Sport Sciences, Waseda University, 2-579-15 Mikajima, Tokorozawa City 359-1192, Japan
3
Graduate Institute of Sport Pedagogy, University of Taipei, No. 101, Sec. 2, Jhongcheng Rd., Shilin Dist., Taipei 11153, Taiwan
4
Health Convergence Medicine Laboratory, Biomedical Research Institute, Pusan National University Hospital, 179, Gudeok-Ro, Seo-Gu, Busan 49241, Korea
*
Authors to whom correspondence should be addressed.
Nutrients 2020, 12(2), 443; https://doi.org/10.3390/nu12020443
Received: 22 December 2019 / Revised: 5 February 2020 / Accepted: 5 February 2020 / Published: 10 February 2020
(This article belongs to the Special Issue Diet, Lifestyle and Healthy Ageing)
Studies have indicated that sufficient physical activity levels and balanced dietary behavior are independently related to physical function in older populations; however, their joint association with physical function remain unclear. This study examined the independent and combined associations of sufficient physical activity and balanced selection of foods with lower limb strength among 122 older Taiwanese adults living in community (mean age: 69.9 ± 5.0 years). The assessments included accelerometer-measured moderate-to-vigorous physical activity (MVPA) and self-reported selection of foods. Lower limb strength performance was measured using the five times sit-to-stand test. Binary logistic regression analyses were performed to estimate the associations in question before and after adjusting for potential confounders. The results showed that in the adjusted model, lower limb strength had no significant independent association with either meeting the recommended level of MVPA or balanced selection of foods. Compared to older adults who neither met the recommended MVPA level nor reported a balanced selection of foods, those who conformed to both these criteria were more likely to have better lower limb strength (odds ratio = 6.28, 95% confidence interval = 1.36–29.01) after adjusting for covariates. Health promotion initiatives addressing disability prevention for older adults need to consider promoting both MVPA and food selection.
Keywords: older adult; physical function; dietary behavior; accelerometer; physical activity older adult; physical function; dietary behavior; accelerometer; physical activity
MDPI and ACS Style

Lai, T.-F.; Lin, C.-Y.; Chou, C.-C.; Huang, W.-C.; Hsueh, M.-C.; Park, J.-H.; Liao, Y. Independent and Joint Associations of Physical Activity and Dietary Behavior with Older Adults’ Lower Limb Strength. Nutrients 2020, 12, 443.

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