An observational study in Health-Related Behavior, sponsored by University of Primorska. Active, not recruiting at 2 sites in Slovenia. Open to participants aged 18 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-05.
Sponsored by University of Primorska · Observational
The PRENAV project focuses on healthy and sustainable eating among employees in the defense sector of the Republic of Slovenia. The project pursues two main objectives:
Based on these findings, we will prepare recommendations and an action plan to promote healthier and more sustainable eating among employees in the defense sector.
Participants will be selected using non-probability quota sampling, with quotas defined according to population characteristics, taking into account the research problem:
228 studies on the registry are indexed under Health Behavior; 95 are open to participants now.
This study's enrollment of 125 is below the median of 242 across 32 observational studies indexed under Health Behavior.
Browse Health Behavior studies →University of Primorska is the lead sponsor of 53 studies on the registry; 6 are open to participants now.
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All participants will be adults, with an expected age range of 18-65 years, including both males and females, employed in the defense sector. Participants will include both military personnel and civilians.
Exclusion Criteria:
Food intake
Participants of the cross-sectional study will complete a Food Frequency Questionnaire (FFQ), adapted for the Slovenian population (Bizjak, Jenko Pražnikar \& Koroušić Seljak, 2014), with the aid of visual materials (portion size images). In the FFQ method, respondents answer questions about the frequency of consumption of specific foods over a certain period of time. From a methodological perspective, most studies examining dietary habits and food/nutrient intake in military populations use the Food Frequency Questionnaire (FFQ), which is typically adapted to the general population of individual countries (Collins et al., 2021), rather than specifically tailored to the military population. The questionnaire is based on self-reporting by study participants. It is an internationally established methodology for subjective assessment of nutrient intake, and the risk for participants is negligible.
Time frame: From enrollment to the end of the November 2025
Body muscle mass (kg)
Body composition will be analyzed using the BodyStat1500 body analyzer. Bioelectrical impedance measurements will be conducted according to the standard protocol recommended by the European Society for Clinical Nutrition (Kyle et al., 2004). The protocol specifies that measurements should be taken on an empty stomach, with an emptied bladder, without physical activity or alcohol intake in the past 8 hours. Participants will lie in a supine position for at least 5-10 minutes before the measurement, following the standard protocol (we will use 10 minutes in the supine position). Electrodes will be placed tetrapolarly on cleaned skin: on the right arm (from fingers to wrist) and the leg (instep to ankle). The distance between the two electrodes must be at least 5 centimeters. The participants' arms will be positioned at a 30-degree angle relative to the torso, and the legs spread at a 45-degree angle.
Time frame: From enrollment to the end of November 2025
vitamin D (ng/ml)
Serum levels of vitamin D will be measured in biochemical laboratory of General Hospital of Izola, Slovenia.
Time frame: From enrollment to the end of the November 2025
This study is active, not recruiting, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.
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