Endothelial Function (Reactive Hyperemia)
Conditions
Keywords
lifestyle, physical activity, endothelial function, cardiovascular, occupational, prevention
Brief summary
Background: The impact of demographic changes on workplace has increased the importance of effective occupational preventive health programs. The primary goal of these programs is the improvement of overall health status (and therefore increase productivity and decrease healthcare costs) of the increasingly older workforce through positive lifestyle behavior change. A one- year preventive health behavior-change program for the employees of the company British Petrol (BP) shall be scientifically evaluated. The initial stage of the program consists of a health-behavior seminar and six weeks (twice a week for 90 minutes) of supervised endurance exercise (i.e. jogging, nordic walking, cycling or swimming) in groups. In the second phase of the program, the participants receive a recommendation to continue exercise regularly unsupervised for one year, and receive monthly supervised exercise training sessions. Clinical check-ups are performed at baseline (V1) at three months (V2) and at 12 months (V3).
Detailed description
The study will investigate the effect of one year of participation in a lifestyle- intervention- program on the participants' metabolic risk profile, exercise capacity and vascular health. A primary focus is on the endothelium, because poor endothelial health is a risk factor and prognostic indicator of atherosclerosis and cardiovascular events. Hypothesis: One year of participation in endurance exercise (twice a week for 90 minutes) may positively influence endothelial health (RHI) The primary aim: change in endothelial function (reactive hyperemia index (RHI)) after one year. Secondary aims: Changes in other vascular parameters (AI: augmentation index, CAVI: Cardio ankle vascular index, ABI: ankle brachial index ), changes in anthropometric, inflammatory and metabolic parameters, exercise capacity (Watt/kg), physical activity, and health related quality of life (HRQoL).
Interventions
BEHAVIORALhealth-behavior seminar and endurance exercise
The initial stage of the program consists of a health-behavior seminar and six weeks (twice a week for 90 minutes) of supervised endurance exercise (i.e. jogging, nordic walking, cycling or swimming) in groups. In the second phase of the program, the participants receive a recommendation to continue exercise regularly unsupervised for one year, and receive monthly supervised exercise training sessions.
Sponsors
Moving - ab jetzt gesund GmbH
Technical University of Munich
Study design
Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Employees of the company British Petrol (BP) in Lingen, Germany * men and woman of all age * approval for being able to participate in physical activity * existing, written agreement to study-participation with prior, detailed education
Exclusion criteria
* Acute or chronic disease of any kind, which does not allow participation in physical activity (missing approval of being able to participate in physical activity) * Incompetent patient, who is not able to understand character, meaning and consequences of the study
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Change in RHI (Reactive Hyperemia Index) | after 0 months (V1), 3 months (V2), 12 months (V3) | endothelial function |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| CAVI (Cardio ankle vascular index) | after 0 months (V1), 3 months (V2), 12 months (V3) | Vascular function: Change from baseline in CAVI (Cardio ankle vascular index) at 12 month |
| Anthropometric parameters (see description) | after 0 months (V1), 3 months (V2), 12 months (V3) | Changes from Baseline in systolic/diastolic blood pressure, weight, body-fat and waist-circumference at 12 month |
| Inflammatory and metabolic parameters from blood samples (see description) | after 0 month (V1), 3 month (V2), 12 month (V3) | Change from baseline in blood glucose, HbA1c, total cholesterol, HDL, LDL, triglycerides (metabolic parameters) and C-reactive protein (inflammatory parameters)at 12 month |
| Exercise capacity (Watt/kg) | after 0 month (V1) and after 12 month (V3) | Changes from baseline in exercise capacity (Watt/kg) at 12 month |
| AI (Augmentation Index) | after 0 month, 3 month, 12 month | Vascular function: Change from baseline in AI (Augmentation Index) at 12 month |
| ABI (Ankle-Brachial-Index) | after 0 month, 3 month, 12 month | Vascular function: Change from baseline in ABI (Ankle-Brachial-Index)at 12 month |
| Health related quality of life (HRQoL) | after 0 month (V1) and 12 month (V3) | questionnaire |
Countries
Germany
Outcome results
None listed