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Impact of work pace on cardiorespiratory outcomes, perceived effort and carried load in industrial workers: a randomised cross-over trial.
Javanmardi, Sasha; Rappelt, Ludwig; Heinke, Lars; Niederer, Daniel; Zemke, Janis Alexander; Freiwald, Jürgen; Baumgart, Christian.
Afiliación
  • Javanmardi S; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany javanmardi@uni-wuppertal.de.
  • Rappelt L; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany.
  • Heinke L; Department of Intervention Research in Exercise Training, German Sport University Cologne, Koln, Germany.
  • Niederer D; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany.
  • Zemke JA; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany.
  • Freiwald J; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany.
  • Baumgart C; Department of Movement and Training Science, University of Wuppertal, Wuppertal, Germany.
Occup Environ Med ; 2024 Sep 20.
Article en En | MEDLINE | ID: mdl-39304344
ABSTRACT

OBJECTIVES:

This study investigates the impact of different work paces on cardiorespiratory outcomes, perceived effort and carried load (CL) in industrial workers.

METHODS:

A randomised cross-over trial was conducted at a mid-sized steel company. We included 12 healthy industrial workers (8 females, age mean 44±SD 9 years, height 1.70±0.08 m, body mass 79.5±13.4 kg) with at least 6 months of working experience. All participants performed 5 min of piece work at 100% (P100), 115% (P115) and 130% (P130) of the company's internal target yielded in a randomised order, separated by 5 min familiarisation breaks. The primary outcome was energy expenditure (EE), calculated from a respiratory gas exchange using a metabolic analyser. Secondary outcomes were total ventilation, oxygen uptake, carbon dioxide release, respiratory exchange ratio, heart rate and rating of perceived effort (0-10). Furthermore, the metabolic equivalent and the CL were calculated. Data were analysed with repeated measure analyses of variance.

RESULTS:

For EE, a large 'pace' effect with a small difference between P100 and P130 (165.9±33.4 vs 178.8±40.1 kcal/hour-1, p=0.008, standard mean difference, SMD=0.35) was revealed. Additionally, a large difference in CL between all paces (p<0.001, SMD≥1.10) was revealed. No adverse events occurred.

CONCLUSIONS:

Cardiorespiratory outcomes rise with increased work pace, but the practical relevance of these differences still needs to be specified. However, the CL will add up over time and may impact musculoskeletal health in the long term.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Occup Environ Med Asunto de la revista: MEDICINA OCUPACIONAL / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Occup Environ Med Asunto de la revista: MEDICINA OCUPACIONAL / SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: Alemania Pais de publicación: Reino Unido