Exact(1)
The patients were older than 60 years with BMI 28.0 kg/m2 or greater, had symptomatic knee OA and self-reported difficulty in performing selected physical activities.
Similar(59)
Only 39% (204/525) of patients who selected physical activity actually increased physical activity and then only 26% were able to sustain it.
If an activity prescribed was facility-based, a copy of the PAR was also sent to the PARs coordinator in the selected physical activity organization, who then contacted the patient by telephone or letter.
Few studies have reported on perceptions in relation to sedentary behaviours: a study conducted in youth reported that sedentary behaviour was negatively associated with selected physical self-perceptions irrespective of physical activity [ 30], and two studies in adults found that perceived barriers to physical activity (cost, weather) were also correlates of TV viewing [ 31, 32].
There was however an exception: arm circumference was selected (with an inverse relation) by forward stepwise Cox model, whereas backward stepwise Cox model selected instead physical activity (also with an inverse relation) pointing to physical fitness as the common descriptor.
Sequential multiple regression analysis was performed in order to evaluate the associations between physical function and selected sociodemographic, physical activity, and health-related variables.
Of the 2465 peer-reviewed articles and theses that met the search criteria for the updated review, as well as 113 journal issues manually searched, 32 articles and two theses were selected as physical activity interventions in Latin America.
Nevertheless, this systematic review will help investigators to select a physical activity PRO questionnaire that best serves their research question and context.
We therefore regard our decision to select overall physical activity as primary outcome as a shortcoming in the study design, and this aspect should be included in future research in this area.
27 Sedentary behaviors, such as watching television, idle sitting, reading, or using a computer, can be reduced by removing environmental and access barriers to physical activity 19 and by selecting subjectively enjoyable physical activities 28 or providing structured rehabilitative opportunities.
Furthermore, we performed a subgroup analysis stratified by age ( < 59·1 years old v. >59·1 years old; cut-off points selected by median), physical activity (inactive or moderately inactive v. active or moderately active) and smoking status (smoker v. non-smoker) for the outcomes analysed in order to examine whether in any of these strata, a significant gene diet interaction was obtained.
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