Impact of Rescuer Position, Arm Angle, and Anthropometric Variables on Muscle Fatigue During Cardiopulmonary Resuscitation: An international multicentric randomized crossover simulation study
Publiceringsår
2025
Upphovspersoner
Sa-Couto, Carla; Sa-Couto, Pedro; Nicolau, Abel; Lazarovici, Marc; Ericsson, Christoffer; Vieira-Marques, Pedro; Bispo, Ingrid
Abstrakt
Background There is a lack of studies using surface electromyography (sEMG) to objectively assess the impact of rescuer position and arm angle on muscle fatigue during CPR. Additionally, the relationship between anthropometric variables (height and weight) and muscle fatigue remains underexplored. Aim This study aims to objectively assess muscle fatigue during CPR by analysing triceps brachii sEMG activation during continuous chest compressions (CCs) across different rescuer positions and arm angles. A secondary objective is to examine correlations between anthropometric variables and muscle fatigue, while also evaluating the impact of CCs quality on fatigue levels. Methods This international, multicentric, randomized crossover simulation trial included healthcare professionals assigned to one of four rescuer positions: kneeling on the floor, standing, standing on a step stool, and kneeling on a bed. Participants performed two 3-minute trials of continuous CCs at 90° and 105° arm angles. Muscle fatigue was assessed via sEMG, while compression quality was evaluated using manikin-derived data. Results A total of 72 participants were included. The 105° arm angle significantly increased muscle fatigue compared to 90° (p<0.001) across all rescuer positions. Taller and heavier rescuers exhibited lower fatigue for both arm angles (p<0.05); however, fatigue levels were consistently higher at 105° than at 90°. Conclusion Arm angle is a key determinant of rescuer muscle fatigue, with 105° increasing fatigue compared to 90°. Rescuer position alone was not significant, though fatigue was more pronounced in kneeling and elevated positions. Taller and heavier rescuers demonstrated greater endurance but remained affected by suboptimal arm angles.
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Publikationstyp
Publikationsform
Artikel
Moderpublikationens typ
Tidning
Artikelstyp
En originalartikel
Målgrupp
VetenskapligKollegialt utvärderad
Kollegialt utvärderadUKM:s publikationstyp
A1 Originalartikel i en vetenskaplig tidskriftPublikationskanalens uppgifter
Journal
Förläggare
Volym
24
Artikelnummer
100971
ISSN
Publikationsforum
Publikationsforumsnivå
1
Öppen tillgång
Öppen tillgänglighet i förläggarens tjänst
Ja
Öppen tillgång till publikationskanalen
Delvis öppen publikationskanal
Licens för förläggarens version
CC BY
Parallellsparad
Ja
Övriga uppgifter
Vetenskapsområden
Vårdvetenskap; Medicinsk bioteknologi
Nyckelord
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Förlagets internationalitet
Internationell
Språk
engelska
Internationell sampublikation
Ja
Sampublikation med ett företag
Nej
DOI
10.1016/j.resplu.2025.100971
Publikationen ingår i undervisnings- och kulturministeriets datainsamling
Ja