Nos domaines d’activité

  • Haute fiabilité organisationnelle

    Fiabilité et performance de l’activité opérationnelle, plans de continuité, optimisations des flux et des services supports, amélioration continue, réseaux managériaux d’entraide et d’expertise

    Qualité de vie, santé, et performance au travail

    Management de la fatigue et de la performance humaine, conciliation des sphères de vie, équilibre travail-vie privée, risques psychosociaux, travail de nuit, horaires atypiques, accidentologie, pénibilité...

    Management en situations complexes

    Management libéré, non hiérarchique, de proximité, de publics atypiques, mise en place de réseaux managériaux, bien-être du manager, dialogue social, soft-power...

    Innovation sociale

    Accompagnement durable du changement, agilité organisationnelle, supervision et régulation d’équipes, intégration des aléas (approches VUCA), intelligence économique et territoriale,

    Éthique et société

    Égalité femme-homme, intégration et recrutement de publics atypiques et à haut potentiel, diversité culturelle et générationnelle, médiation, handicap...

    Études et recherches scientifiques

    Expérimentations en situation réelle de travail, chronobiologie, psychologie, sociologie, évaluations psychométriques, enquêtes statistiques.

Shiftwork 2015 - 22e Symposium international sur le travail posté et de nuit, Helsingør, Danemark

Marc Riedel présentera en juin prochain ses travaux de chronobiologie et de chronopsychologie portant sur l’accidentologie opérationnelle les sapeurs-pompiers volontaires à l’occasion du 22e Symposium international sur le travail posté et de nuit. qui aura lieu du 2 au 8 juin à Helsingør au Danemark

Riedel M., Reinberg A., Touitou Y. , Smolensky M.H., Clarisse R., Le Floc’h N., Houberdon G, Pierrat M, Deregnaucourt H

Work-related injury risk and severity of French Volunteer Firefighters are greatest at night

Background. We aimed to determine if the risk of work related injuries (WRI) of French Volunteer Firefighters (VFF) and their severity are greater during the night than day. Studies on VFF are a major interest of the French civil security program since they constitute 78% of the total number of 244 900 French firefighters. VFF maintain a regular job, and volunteer during their free time such that some of them could be potentially exposed to both firefighter and regular job duty for up to 24h/24h, 7 days a week.

Methods. The Vosges Fire Department (SDIS 88) maintains a database of all interventions (fire, road accidents, medical emergencies…) as well as WRI of firefighters. WRI is defined here as a nonexercise, nonsport, and nonemotional/stress work-associated trauma, verified both by log book and medical record. We assessed the relative risk (RR) of WRIs per hour of the 24h span, with RR1=number of WRIs/h divided by the total number of interventions/h×1000 and RR2=the number of WRIs/h divided by the number of firefighters exposed/h×10000. The number of FF per dispatched emergency vehicle is thus taken into account (4.24±0.21 mean±SD). The severity of WRI according to clock-time of occurrence was gauged by the indices of mean number of days lost from work (DLFW), health costs (HC) in €, and compensatory damages (CD) in €. ANOVA, Cosinor, and power spectra analysis were used as statistical tools.

Results. From January 2008 to December 2013, records of the SDIS 88 revealed firefighters performed 146 479 interventions and occurrence of 252 WRI to VFF. The 24h pattern of both RR1 & RR2 was the same (ANOVA F1,46=4,4x10-9, p=.99), both characterized by a prominent nocturnal peak at 05:00h (RR1=3.75, RR2=8.36) and lesser early evening one at 19:00h (RR1=2.40, RR2=5.87). The diurnal trough occurred at 13:00h (RR1=0.93, RR2=2.15). Mean/h of DLFW, HC, and CD all exhibited a similar peak time : DLFW was longest and HC and CD highest for WRI occurring between 00:00 and 02:00h (DLFW=46.44, HC=536.9, and CD=698.22). DLFW was shortest and HC and CD lowest for WRI occurring 06:00/07:00 (DLFW=0, HC=11.40, and CD=0) but also reduced at18:00h (DLFW= 0.33, HC=20.78, and CD=0).

Conclusions.
The results evidence a prominent nocturnal peak and a diurnal trough in both WRI occurrence and severity. Such 24h patterns indicating times of greatest vulnerability must be taken into account in the design of accident prevention programs.

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