Self-efficacy in physical activity and glycemic control among older adults with diabetes in Jagir Subdistrict, Surabaya, Indonesia

Diabetes in older adults has shown an increase in prevalence, especially in urban areas of Indonesia. This study aimed to assess the relationship between self-efficacy in physical activity and glycemic control in older adults' population with diabetes mellitus in Indonesia. This research used cross sectional design that involved 52 adults with diabetes, aged between 55-90 years old who regularly attended the older adult's health post (Posyandu Lansia) at Jagir Sub-district, Surabaya. Those who had physical disabilities were excluded from the study. Questionnaires were used to measure the physical activity and two types of self-efficacy whilst the glycemic control was measured using HbA1c in basal condition. The relationship between the variables was tested using Pearson and partial correlation test. Results show that the level of physical activity was insufficient (216.4 +/- 343.5 MET) with only 32.7% (N = 17) of the participants was categorized as being physically active. The mean of the HbA1c indicated poor glycaemic control (8.63 +/- 2.34%) with majority of them (76.9%, N = 40) was in the poor glycaemic control group (HbA1c > 6.5%). Their self-efficacy was at the average level (Against the barriers:52.65 +/- 13.23; Engage in physical activity: 59.06 +/- 26.2). The self-efficacy in performing the physical activity was found significantly related to the duration of physical activity (r = 0.278, p = 0.046). Other relationships, however, were not significant (p > 0.05). In conclusion, self-efficacy to engage in physical activity is paramount to increase the physical activity among the older adults. Nevertheless, further longitudinal research on self-efficacy in physical activity management is needed.