Effects of a Sedentary Behaviors at Work on Health in Emergency Medical Dispatchers and CODIS Operators (SECODIS)
Study Details
Study Description
Brief Summary
The purpose of the study is to demonstrate a reduction of sedentary behavior following a behavioral intervention (sit-and-stand desk, and cycloergometer)
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
N/A |
Detailed Description
Each emergency medical services dispatcher and each firefighter participates in the study for three days. A normal working day from of 12h is compared to: (i) a working day during which the participants have to get up at least 5 min/hour (sit-and-stand desk), (ii) a working day during which they can use a cycloergometer installed under the desk. Conditions will be random using Latin Square design with stratification between sequences cross-over design on occupation (EMD vs. firefighters).
The heart rate variability (measured using Zephyr®), the electrodermal activity (Empatica® E4), the level of physical activity (Actigraph®) as well as the blood sugar (Freestyle®) will be measured continuously during the 12 hours of work and the night after except for Actigraph® and Freestyle® device that will be let one week. Blood and saliva samples will be collected at the beginning and end of each working day (6 samples in total). Participants will have to complete a detailed questionnaire to identify the particular events (vital emergencies, etc.) that may influence the parameters measured.
Participants will be asked to answer a general questionnaire once at the start of the study that will cover different aspects:
-
Sociodemographic,
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Visual analogue scale (VAS) related to psychosocial factors : stress at home, burnout / burnout, decision latitude / autonomy at work, psychological demands at work (workload), support from the hierarchy, support from co-workers, family support, job satisfaction with regard to effort, commitment to work, addiction to work, quality of life, need for psychological support,
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Eating habits.
They will then have to answer a short questionnaire at the beginning and at the end of each measurement day. It will cover different aspects:
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Four VAS (stress level, fatigue, anxiety, mood),
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Physical activity and sedentary lifestyle (number of hours of physical activity and sitting during the last 24 hours),
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Daily consumption (tobacco, alcohol, cannabis, coffee, tea).
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Emergency medical dispatchers
|
Behavioral: Control
A normal working day from of 12h
Behavioral: Sit-and-stand desk
a working day during which the participants have to get up at least 5 min/hour
Behavioral: Cycloergometer
a working day during which they can use a cycloergometer installed under the desk
|
| Experimental: Firefighter
|
Behavioral: Control
A normal working day from of 12h
Behavioral: Sit-and-stand desk
a working day during which the participants have to get up at least 5 min/hour
Behavioral: Cycloergometer
a working day during which they can use a cycloergometer installed under the desk
|
Outcome Measures
Primary Outcome Measures
- Sedentary behavior [12 hours of work corresponding to the control condition]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes per day standing/active.
- Sedentary behavior [12 hours of work corresponding to the sit-and-stand desk condition]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes per day standing/active.
- Sedentary behavior [12 hours of work corresponding to the cycloergometer condition]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes per day standing/active.
Secondary Outcome Measures
- Sedentary behavior [one-week (168 hours) control cycle]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes per day standing/active.
- Sedentary behavior [one-week (168 hours) sit-and-stand desk cycle]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes standing/active during one week.
- Sedentary behavior [one-week (168 hours) cycloergometer cycle]
Sedentary behavior measured by actimetry using Actigraph® in number of minutes standing/active during one week.
- Heart rate variabily [24 hours record corresponding to 12 hours of work and the next 12 hours of rest]
The heart rate variability measured using Zephyr®
- Electrodermal activity [24 hours record corresponding to 12 hours of work and the next 12 hours of rest]
The electrodermal activity measured using Empatica E4
- Stress at home [8 am, beginning of the control day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Stress at home [8 am, beginning of the sit-and-stand desk day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Stress at home [8 am, beginning of the cycloergometer day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Stress at home [6 pm, end of the control day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Stress at home [6 pm, end of the sit-and-stand desk day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Stress at home [6 pm, end of the cycloergometer day]
Stress at home measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [8 am, beginning of the control day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [8 am, beginning of the sit-and-stand desk day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [8 am, beginning of the cycloergometer day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [6 pm, end of the control day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [6 pm, end of the sit-and-stand desk day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Fatigue [6 pm, end of the cycloergometer day]
Fatigue measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [8 am, beginning of the control day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [8 am, beginning of the sit-and-stand desk day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [8 am, beginning of the cycloergometer day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [6 pm, end of the control day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [6 pm, end of the sit-and-stand desk day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Anxiety [6 pm, end of the cycloergometer day]
Anxiety measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Mood [6 pm, beginning of the control day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent). Higher scores mean a better outcome.
- Mood [8 am, beginning of the sit-and-stand desk day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent).Higher scores mean a better outcome.
- Mood [8 am, beginning of the cycloergometer day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent).Higher scores mean a better outcome.
- Mood [6 pm, end of the control day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent).Higher scores mean a better outcome.
- Mood [6 pm, end of the sit-and-stand desk day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent).Higher scores mean a better outcome.
- Mood [6 pm, end of the cycloergometer day]
Mood measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent).Higher scores mean a better outcome.
- Stress at work [8 am, beginning of the control day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Stress at work [8 am, beginning of the sit-and-stand desk day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Stress at work [8 am, beginning of the cycloergometer desk day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Stress at work [6 pm, end of the control day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Stress at work [6 pm, end of the sit-and-stand desk day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Stress at work [6 pm, end of the cycloergometer day]
Stress at work measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum).Higher scores mean a worse outcome.
- Amount of physical activity [8 am, beginning of the control day]
Number of hours of physical activity during the last 24 hours
- Intensity of physical activity [8 am, beginning of the control day]
Physical activity intensity during the last 24 hours measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Amount of physical activity [8 am, beginning of the sit-and-stand desk day]
Number of hours of physical activity during the last 24 hours
- Intensity of physical activity [8 am, beginning of the sit-and-stand desk day]
Physical activity intensity during the last 24 hours measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Amount of physical activity [8 am, beginning of the cycloergometer day]
Number of hours of physical activity during the last 24 hours
- Intensity of physical activity [8 am, beginning of the cycloergometer day]
Physical activity intensity during the last 24 hours measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Amount of physical activity [6 pm, end of the control day]
Number of hours of physical activity during the working day
- Intensity of physical activity [6 pm, end of the control day]
Physical activity intensity during the working day measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Amount of physical activity [6 pm, end of the sit-and-stand desk day]
Number of hours of physical activity during the working day
- Intensity of physical activity [6 pm, end of the sit-and-stand desk day]
Physical activity intensity during the working day measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Amount of physical activity [6 pm, end of the cycloergometer day]
Number of hours of physical activity during the working day
- Intensity of physical activity [6 pm, end of the cycloergometer day]
Physical activity intensity during the working day measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a higher intensity.
- Sitting time [8 am, beginning of the control day]
Number of hours sit during the last 24 hours
- Sitting time [8 am, beginning of the sit-and-stand desk day]
Number of hours sit during the last 24 hours
- Sitting time [8 am, beginning of the cycloergometer day]
Number of hours sit during the last 24 hours
- Sitting time [6 pm, end of the control day]
Number of hours sit during the working day
- Sitting time [6 pm, end of the sit-and-stand desk day]
Number of hours sit during the working day
- Sitting time [6 pm, end of the cycloergometer day]
Number of hours sit during the working day
- Tabacco consumption [8 am, beginning of the control day]
Number of cigarette during the last 24h
- Tabacco consumption [8 am, beginning of the sit-and-stand desk day]
Number of cigarette during the last 24h
- Tabacco consumption [8 am, beginning of the cycloergometer day]
Number of cigarette during the last 24h
- Tabacco consumption [6 pm, end of the control day]
Number of cigarette during the working day
- Tabacco consumption [6 pm, end of the sit-and-stand desk day]
Number of cigarette during the working day
- Tabacco consumption [6 pm, end of the cycloergometer day]
Number of cigarette during the working day
- Tea consumption [8 am, beginning of the control day]
Number of cups of tea during the last 24h
- Tea consumption [8 am, beginning of the sit-and-stand desk day]
Number of cups of tea during the last 24h
- Tea consumption [8 am, beginning of the cycloergometer day]
Number of cups of tea during the last 24h
- Tea consumption [6 pm, end of the control day]
Number of cups of tea during the last 24h
- Tea consumption [6 pm, end of the sit-and-stand desk day]
Number of cups of tea during the last 24h
- Tea consumption [6 pm, end of the cycloergometer day]
Number of cups of tea during the last 24h
- Coffee consumption [8 am, beginning of the control day]
Number of cups of coffee during the last 24h
- Coffee consumption [8 am, beginning of the sit-and-stand desk day]
Number of cups of coffee during the last 24h
- Coffee consumption [8 am, beginning of the cycloergometer day]
Number of cups of coffee during the last 24h
- Coffee consumption [6 pm, end of the control day]
Number of cups of coffee during the working day
- Coffee consumption [6 pm, end of the sit-and-stand desk day]
Number of cups of coffee during the working day
- Coffee consumption [6 pm, end of the cycloergometer day]
Number of cups of coffee during the working day
- Sociodemographic [Once at baseline]
Sociodemographic will be assessed: gender, age, marital status, children, occupation, and recent stressful event
- Sleep quality [Once at baseline]
Sleep quality measured using visual analogue scale ranging from 0 (Bad) to 100 (Excellent). Higher scores mean a better outcome.
- Familly support [Once at baseline]
Family support measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a better outcome.
- Burnout [Once at baseline]
Burnout measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Job demand [Once at baseline]
Job demand measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a worse outcome.
- Job control [Once at baseline]
Job control measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a better outcome.
- Hierarchy support [Once at baseline]
Hierarchy support measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a better outcome.
- Colleagues support [Once at baseline]
Colleagues support measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a better outcome.
- Effort reward-imbalance [Once at baseline]
Effort reward-imbalance measured using visual analogue scale ranging from 0 (Minimum) to 100 (Maximum). Higher scores mean a better outcome.
- Medical treatment [Once at baseline]
Medical treatment measured using multi-choice question "do you take long terme medication?"
- Allergy [Once at baseline]
Allergy measured using multi-choice question "do you have allergy?"
- Average physical activity [Once at baseline]
Average number of hours of physical activity per week
- Average physical activity intensity [Once at baseline]
Average physical activity intensity per week
- Average tabacco consumption [Once at baseline]
Average number of cigarette per day
- Average alcohol consumption [Once at baseline]
Average number of alcohol glasses per week
- Average cannabis consumption [Once at baseline]
Average number of cannabis joint per week
- Average tea consumption [Once at baseline]
Average number of cup of tea per day
- Average coffee consumption [Once at baseline]
Average number of cup of coffee per day
- Average food consumption [Once at baseline]
Average food consumption of 16 food group
- Diet characterization [Once at baseline]
"How do you characterize your diet" measured on a visual analogue scale ranging from 0 (Not at all balanced) to 100 (Very balanced)
- Average burnout level [Once at baseline]
Average burnout level measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average job control level [Once at baseline]
Average job control level measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average hierarchy support [Once at baseline]
Average hierarchy support measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average colleagues support [Once at baseline]
Average colleagues support measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average family support [Once at baseline]
Average family support measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average effort reward imbalance [Once at baseline]
Average effort reward imbalance measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- Average sleep quality [Once at baseline]
Average sleep quality imbalance measured on a visual analogue scale ranging from 0 (Minimum) to 100 (Maximum)
- RPAQ questionnaire [Once at baseline]
The Recent Physical Activity Questionnaire (RPAQ) assesses the level of physical activity and sedentary lifestyle in adults over the past four weeks. It is divided into three parts: work and study, home and leisure, and finally, stairs and travel. It makes it possible to classify individuals into several categories, one on sedentary lifestyle (low, resistant either 3-7h/day or high or >7h/day) and one on the level of physical activity (<8.3 MET.hour/week: inactive or >8.3 MET.h/wk: active).
- MBI questionnaire [Once at baseline]
The Maslach Burn-out Inventory (MBI) is composed of 22 items designed to assess the three components of the burn-out syndrome: emotional exhaustion (9 items), depersonalization (5 items) and reduced personal accomplishment (8 items). The items are written in the form of statements about personal feelings or attitudes. Items are made of a 7-point scale frequency of feelings, varying from "never" to "every day". The scores for each component of the burn-out syndrome are considered separately. If desired for participant feedback, each score can be coded as low, average, or high.
- JDSC questionnaire [Once at baseline]
The Job Demand-Control-Support (JDSC) questionnaire of Karasek assessed job demands, job control and social support through 26 items. The questionnaire measures nine items of job demands, nine items of job control and eight items of social support. Items of JCQ are scored on a four-point Likert-type scale, ranging from 1 = strongly disagree to 4 = strongly agree. Among the 26 items, five negative statements require reverse scoring. From French data, the job strain threshold is set for a demands score higher than 20 and a control score lower than 71; the isostrain threshold is determined from a combining score of job strain and social support lower than 24. We would ask the participants to fulfil the questionnaire from memories that they keep of their work.
- ERI questionnaire [Once at baseline]
The Effort-Reward Imbalance Questionnaire (ERI) is a self-administrated test assessing psychological distress and health problems that may occur when there is an imbalance between the efforts required by the work and the rewards received. We used the 46 items of the French version of the ERI model exploring efforts (six items), over commitment (eleven items), and rewards (seventeen items). Items of ERI were scored on a five-point Likert-type scale, ranging from 1 = disagree to 5 = agree and very disturbed. A ratio extrinsic efforts and rewards can assess the imbalance between these two dimensions. A ratio greater than one defines employees exposed to an imbalance between efforts and rewards.
- Salivary cortisol [Once at baseline]
Salivary cortisol measured in µg/dl
- Blood cortisol [Once at baseline]
Blood cortisol measured in ng/ml or nmol/l
- Salivary DHEAS [Once at baseline]
Salivary DHEAS measured in pg/ml
- Blood DHEAS [Once at baseline]
Blood DHEAS measured in µg/ml
- Salivary leptin [Once at baseline]
Salivary leptin measured in ng/ml
- Blood leptin [Once at baseline]
Blood leptin measured in ng/ml
- Salivary ghrelin [Once at baseline]
Salivary ghrelin measured in ng/ml
- Blood ghrelin [Once at baseline]
Blood ghrelin measured in pg/ml
- Blood BDNF [Once at baseline]
Blood brain-derived neurotrophic factor (BDNF) measured in pg/ml
- Blood pro-inflammatory cytokines [Once at baseline]
Blood pro-inflammatory cytokines measured in pg/ml
- Blood NPY [Once at baseline]
Blood vascular distribution of neuropeptide Y (NPY) measured in pg/ml
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Emergency medical dispatchers or firefighters from the departmental fire and rescue operational center (CODIS).
-
Person able to give an informed consent to participate in research
-
Affiliated with a Social Security scheme.
Exclusion Criteria:
-
Non-affiliated to a health insurance,
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Protected persons (minors, pregnant women, breastfeeding women, guardianship, curatorship, deprived of freedoms, safeguard of justice),
-
Refusal to participate.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | CHU clermont-ferrand | Clermont-Ferrand | France |
Sponsors and Collaborators
- University Hospital, Clermont-Ferrand
Investigators
- Principal Investigator: Fréderic DUTHEIL, fdutheil@chu-clermontferrand.fr
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- RBHP 2022 DUTHEIL
- 2022-A02730-43