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The principal objective of this study is to determine if the provision of a treadmill workstation in an emergency medical services (EMS) dispatch center increases the number of steps that participants make daily within 6 months compared to the usual working conditions.
The investigators hypothesized that the provision of a treadmill workstation with a slow walking could increase the number of daily steps and decrease days of leave, musculoskeletal disorders without decreasing the dispatch quality.
Sedentariness, measured by the daily duration of time spent seated is a cardiovascular risk factor, chronic pathologies (cancer, musculoskeletal pain) and mortality.
The employees who remain seated from 8 to 11 hours per day have an increase risk of death within 3 years (15%). This increase reaches 40% for more than 11 hours a day.
The restoration of a daily moderate physical activity from 60 to 75 minutes could permit to eliminate this increased risk.
Interventions in workplace to limit sitting are associated with a metabolic benefit, but also with a reduction in musculoskeletal problems and fatigue.
The role of dispatchers is to initiate the medical record by determining the severity of the call and take rapid and adequate decision.
They are seated behind their desks from 8 to 11 hours in a busy and stressful environment.
Many dispatchers are complaining of musculoskeletal disorders and weight gain. An internal study conducted between between 2012 and 2016 showed an increase in long-term pain, irritability and sleep disorders. Overall, 65% of the respondents reported that they were tired at work and had less empathy.
The use of workstations with low-speed treadmills were assessed to allow physical activity at work.
A recent review concluded that their use reduced the time that the employees spent seated, stress and improved energy expenditure, as well as different biological and physical parameters (weight loss, lipid determination, glycaemia). This study did not reveal any alterations in performance at work.
The investigators assume that the establishment of a position allowing slow walk during dispatch call would increase the number of steps made by dispatchers on a daily basis and reduce the number of days of leave and musculoskeletal disorders, without impairing the quality of call pick-up.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control Group | No Intervention | During the randomized study phase (6 months),subjects will perform their usual activity without access to the treadmill workstation in the dispatch center. After six months, all subjects will continue to be assessed with free access to the treadmill workstation at the workplace. | |
| Experimental Group | Experimental | During the randomized study phase, subjects will have an open access to the treadmill workstation with the indication to use it for at least one hour (continuous or split) on working days. After six months, all subjects will continue to be assessed with free access to the treadmill workstation. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Use of the treadmill workstation at work | Other | During the randomized study phase, provision of the treadmill workstation with the recommendation to use it for at least one hour (continuous or split) during each of the working shifts. After six months, all subjects will use treadmill without restrictions or conditions. |
| Measure | Description | Time Frame |
|---|---|---|
| Difference of number of steps at 0 and 6 months | Number of daily steps measured by actimetry (including all walking activities measured over a day). Measurements will be done with actimetry during one week before the randomization and at 6 months | 0 and 6 months |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of Quality of life | Assessment of quality of life with the validated Short Form Health Survey assessment SF-36 | 0, 6 and 12 months |
| Evaluation of Anxiety and depression | Assessment of anxiety depression with the validated Hospital Anxiety and Depression Score. This questionnaire helps your physician to know how the patient is feeling. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Guillaume Debaty, MD, PhD | CHU Grenoble Alpes, SAMU38 | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Grenoble | Grenoble | France |
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| ID | Term |
|---|---|
| D009043 | Motor Activity |
| ID | Term |
|---|---|
| D001519 | Behavior |
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|
| 0, 6 and 12 months |
| Change in blood pressure | Assessment of blood pressure every month | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Change in heart rate | Assessment of heart rate every month | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Change in Weight | Assessment of weight every month | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Assessment of musculoskeletal disorders | Assessment with the validated Standardised Nordic Questionnaire | 0, 6 and 12 months |
| Evaluation of non-attendance at work | Number of workdays not realised during the month | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Job performance evaluation | Assessment with the Likert scale (7-points scale) Level of Performance - 7 point 0 - Not at all performant
| 0, 6 and 12 months |
| Work satisfaction evaluation | Assessment with the Utrecht Work Engagement Scale (7-points scale). Level of Satisfaction - 7 point 0 - Completely dissatisfied
| 0, 6 and 12 months |
| Assessment of sleep quality | Assessment with the Pittsburgh Quality Index survey | 0, 6 and 12 months |
| Evaluation of tobacco consumption | Mean of packs of smoked cigarettes during the week before the evaluation. This evaluation is based on a declared and quantitative consumption. | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Evaluation of pickup calls quality | Calls are evaluated according to the following criteria:
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |
| Walking period during a working day | Evaluation of walking time on the treadmill with the integrated software | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 months |