• Xiaoying Chen, Shuang Yang, Huiwen Zhao, Rui Li, Wen Luo, and Xiuli Zhang.
• The 2nd Ward of Knee Trauma Department, Tianjin Hospital, Tianjin, People's Republic of China.
• Patient Prefer Adher. 2022 Jan 1; 16: 1819-1829.

AimTo explore the correlation of exercise anticipation, self-efficacy and lower limb function in the elderly, and identify active predictors of exercise. The time up and go (TUG) has been used to access basic mobility skills, as well as strength, balance and agility, which is used in a range of population.MethodsA cross-sectional survey approach was employed in this study, assessing the functional relationship of the level of exercise anticipation, modified gait efficacy scale (mGES), self-efficacy for exercise scale (SEE), perceived efficacy of patient-physician interactions (PEPPI-10), behavioral regulation in exercise questionnaire (BREQ), and the time up and go (TUG) and International Physical Activity Questionnaire (IPAQ). Consequently, we constructed the Bayesian network model utilizing Genie 2.3, in order to effectively determine clear negative and positive correlations.ResultsThis investigation incorporated a total of 285 patients. The results of Spearman's correlation analysis indicated that the TUG effectively correlated with age (r = 0.158, P < 0.01), drinking (r=-0.362, P < 0.01), mGES (r=-0.254, P < 0.01), PEPPI (r=-0.329, P < 0.01), SEE (r =-0.408, P < 0.01), BREQ (r = 0.676, P < 0.01), EA (r =-0.688, P < 0.01) and IPAQ (r =-0.742, P < 0.01). TUG can be used as the direct influencing factor of IPA, and five nodes in the model can be considered the primary indirect influencing factors of TUG, such as drinking, EA, age, sex and mGES in Bayesian network. The sensitivity analysis of the model confirmed that TUG (0.059), drinking (0.087), EA (0.335), age (0.080), sex (0.164), mGES (0.028) and hypertension (0.030) can become the sensitivity evaluation indicators of IPAQ in the elderly community population, in which the area under the ROC curve (AUC) was 59.6% (2207/3705), indicating a suitable prediction performance.ConclusionExercise anticipation and life behavior habit can effectively predict physical activity capability in the elderly. These findings can help clinicians establish effective intervention to improve the physical activity regularly of the elderly.© 2022 Chen et al.

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