Determining the Influence of an Intervention Based on Sedentary Behavior Reduction and Physical Activity Promotion Among Medical Students.

Brief Summary

Detailed Description

Our project aims to help future healthcare professionals to adopt health-promoting behaviors during their studies in a preventive approach. This support will be provided through an intervention of physical activity management during their curriculum. Specifically, 4th and 5th-year students at the Faculty of Medicine of Lyon Est will have the opportunity to participate in the PROMESS PHYSICAL ACTIVITY project. This intervention will span 11 weeks. At the end of this period, we expect improvements in both subjective and objective indicators of physical activity and sedentary. METHODS. PRE-INTERVENTION. Week 1-3. Students will undergo a two-hour session, during which, they will complete questionnaires on physical activity and sedentary behavior. Bioimpedance measurements will be recorded. Students will also perform three physical fitness tests (vertical jump, maximal isometric strength and endurance). Then, they will wore actimeters to record sedentary behaviors and physical activity levels during three weeks (from week 1 to week 3). INTERVENTION. From week 5 to week 11. The intervention will consist of three individual sessions, each lasting one hour, with approximately 15 days between each session. Each session includes individual interview between a physical activity expert and the participant (i.e. student).The sessions will be scheduled as follow: week 5 and 6 (session 1), week 7 and 8 (session 2), week 9, 10, and 11 (session 3). During the interview, the expert will realize an initial assessment of student physical activity and sedentary behavior levels and will give personalized goals to student. Subsequent sessions will follow the same structure.

Primary Outcomes

Secondary Outcomes

• Perceived level of physical activity : Score obtained at the Global Physical Activity Questionnaire (GPAQ) on physical activity levels.(Week 1 (Pre-intervention))
• Perceived level of sedentary : Score obtained at the Rapid Physical Activity Questionnaire (RPAQ) on sedentary behaviors.(Week 1 (Pre-intervention))
• Actimetry records.Total activity during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Actimetry records. Number of sedentary breaks during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Actimetry records. Number of prolonged sedentary bouts during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Actimetry records.Vector of the dynamic body acceleration (VeDBA) during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Physical Fitness markers - Strength. The force developed during a maximal isometric contraction of the quadriceps during the pre-intervention.(Week 1 (Pre-intervention))
• Actimetry records. Evolution in Energy expenditure during the intervention.(From week 5 to week 11.)
• Actimetry records. Moderate-to-vigorous Physical Activity (MVPA) during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Actimetry records. Light Physical Activity during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Likert - expert satisfaction. Scores obtained on a Likert scale ranging from 1 to 5 accessing the expert's satisfaction of his/her intervention.(From week 5 to week 11.)
• Likert - expert level of comfort. Score assessing the expert comfort levels in participant relationships on a likert scale ranging from 1 to 5.(From week 5 to week 11.)
• Actimetry records. Sedentary time during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Body composition markers. Fat mass measured by bioimpedancemetry during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers - Power. Time of flight during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers - Power. Relative Power during the pre-intervention.(Week 1 (Pre-intervention))
• Perceived level of physical activity : Evolution of the score obtained at the Global Physical Activity Questionnaire (GPAQ) on physical activity level.(From week 5 to week 11.)
• Actimetry records. Evolution in Total activity during the intervention.(From week 5 to week 11.)
• Composite score - Student's satisfaction. Score ranging from 0 to 100 accessing the student's level of satisfaction of the all intervention.(Week 9-10-11)
• Actimetry records. Steps count during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Actimetry records. Evolution in Moderate-to-vigorous physical activity (MVPA) during the intervention.(From week 5 to week 11.)
• Actimetry records. Energy expenditure during the pre-intervention.(From week 1 to week 3 (pre-intervention).)
• Body composition markers. Body Mass Index (BMI) during the pre-intervention.(Week 1 (Pre-intervention))
• Body composition markers. Total body hydration measured by bioimpedancemetry during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers markers - Power. Height of jump during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers - Endurance. Heart rate during the endurance test during the pre-intervention.(Week 1 (Pre-intervention))
• Body composition markers. Skeletal muscle mass measured by bioimpedancemetry during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers - Endurance. Speed through the endurance test during the pre-intervention.(Week 1 (Pre-intervention))
• Physical Fitness markers - Endurance. VO2max through the endurance test during the pre-intervention.(Week 1 (Pre-intervention))
• Actimetry records. Evolution in Light physical activity measured in min/day during the intervention.(From week 5 to week 11.)
• Actimetry records. Evolution in Step Count during the intervention.(From week 5 to week 11.)
• Actimetry records. Evolution in Number of prolonged sedentary bouts during the intervention.(From week 5 to week 11.)
• Body composition markers. Evolution in BMI during the intervention.(From week 5 to week 11.)
• Body composition markers: Impedance metric measures. Evolution in skeletal muscle mass measured by bioimpedancemetry during the intervention.(From week 5 to week 11.)
• VAS - physical activity. Evolution of the score obtained at the 100-mm Visual Analogue Scale (VAS) assessing the perceived level of physical activity.(From week 5 to week 11.)
• Advices given by the expert. Score obtained on a Likert scale ranging from 1 to 5 characterizing the nature of the advices given by the expert.(From week 5 to week 11.)
• Body composition markers. Evolution in fat mass measured by bioimpedancemetry during the intervention.(From week 5 to week 11.)
• VAS - sedentary behaviours. Evolution of the scores obtained at the 100-mm Visual Analogue Scale (VAS) assessing the perceived level of sedentary behaviours.(From week 5 to week 11.)
• Actimetry records. Evolution in number of sedentary breaks during the intervention.(From week 5 to week 11.)
• Body composition markers: Impedance metric measures. Evolution in total body hydration measured by bioimpedancemetry during the intervention.(From week 5 to week 11.)
• VAS - physical fitness: Evolution of the score obtained at the 100-mm Visual Analogue Scale (VAS) assessing the perceived level of physical fitness.(From week 5 to week 11.)
• Actimetry records. Evolution in the vector of the dynamic body acceleration (VeDBA) during the intervention.(From week 5 to week 11.)
• Likert - expert estimation of student's achievements. Score obtained on a Likert scale ranging from 1 to 3 accessing if the expert estimates that the student has achieve the goals previously set.(From week 7 to week 11.)
• Likert - expert estimation of the overall student's achievements. Score obtained on a Likert scale ranging from 1 to 5 accessing the expert's level of satisfaction on the student's progress.(Week 9-10-11)