This study evaluates long-term changes in physical activity and its associations with various predictors after a behavior change program at the Norwegian Healthy Life Centers.

Physical activity is recommended and is part of public health strategies to prevent noncommunicable diseases.

This longitudinal cohort, based on a controlled randomized trial, studies a population of 116 Healthy Life Center participants in South-Western Norway who wore SenseWear Armbands to measure time spent in moderate to vigorous physical activity and sedentary time based on metabolic equivalents. The measurements were obtained at baseline, immediately post-intervention, and 24 months after baseline. Linear mixed model analyses were performed to assess predictors for change in physical activity and sedentary time.

High physical activity levels at baseline were maintained during the 24-month study period. Young, male participants with good self-rated health, utilizing local PA facilities were most active, and young participants utilizing local facilities were also less sedentary. The participants with higher levels of education were less active initially but caught up with the difference during follow-up. A high degree of controlled regulation, characterized by bad conscience and external pressure, predicted more sedentary behavior and a trend toward being less physically active. Autonomous motivation was associated with less time spent on sedentary behaviors. People with high self-efficacy for physical activity were more sedentary initially but showed a reduction in their sedentary behavior.

The study supports the importance of attending local training facilities and adopting motivation for behavioral change that is not based on guilt and external rewards. Interventions aimed at improving physical activity among people at risk for noncommunicable diseases benefit from habitual use of local training facilities, strengthening their self-perceived health and the development of internalized motivation. However, it has not been shown to mitigate social health disparities.

To prevent and reduce non-communicable diseases, the Norwegian Directorate of Health encourages Healthy Life Centres (HLCs) in all municipalities.

This study investigates whether the behaviour change interventions at HLCs positively affected participants’ diet and to evaluate predictors for healthy and unhealthy eating. Our data are part of the Norwegian Healthy Life Centre Study, a 6-month, pragmatic randomised controlled trial (RCT).

Totally, 118 participants ≥18 years old were randomised to an intervention group (n 57), or a waiting list (control group) (n 61). Eighty-six participants met at the 6 months follow-up visit. We merged the participants to one cohort for predictor analyses, using linear regressions.

The RCT of the HLCs’ interventions had no effect on healthy and unhealthy eating 6 months after baseline compared with controls. A short, additional healthy eating education programme produced a modest, statistically significant improvement in healthy eating compared with controls. This did not, however, reduce unhealthy eating. Higher income predicted unhealthier eating over time. Increasing body mass index and impaired physical functioning also led to an increase in unhealthy eating. Healthy eating at 6 months was predicted by self-rated health (SRH), vitality and life satisfaction, and hampered by musculo-skeletal challenges and impaired self-esteem (SE). SRH impacted improvement in healthy eating during the 6 months. The effect of interventions on healthier eating may be improved by an emphasis on developing positive self-concepts like better SRH, vitality, life satisfaction, and SE.