RT Journal Article
T1 Acute muscle fatigue and CPR quality assisted by visual feedback devices: a randomized-crossover simulation trial
A1 Abelairas Gómez, Cristian
A1 Rey Eiras, Ezequiel
A1 González Salvado, Violeta
A1 Mecías Calvo, Marcos
A1 Rodríguez Ruiz, Emilio
A1 Rodríguez Núñez, Antonio
K1 2411.10 Fisiología del Músculo
K1 2411.06 Fisiología del Ejercicio
AB Objective: To analyse the acute muscular fatigue (AMF) in triceps brachii and rectus abdominis during compression-only and standard cardiopulmonary resuscitation (CPR) performed by certified basic life support providers. Methods: Twenty-six subjects were initially recruited and randomly allocated to two study groups according to the muscles analysed; eighteen finally met the inclusion criteria (nine in each group). Both groups carried out two CPR tests (compression-only and standard CPR) of 10 min divided into five 2-min intermittent periods. The ventilation method was freely chosen by each participant (mouth-to-mouth, pocket-mask or bag-valve-mask). CPR feedback was provided all the time. AMF was measured by tensiomyography at baseline and after each 2-min period of the CPR test, in triceps brachii or rectus abdominis according to the study group. Results: Rectus abdominis’ contraction time increased significantly during the fifth CPR period (p = 0.020). Triceps brachii’s radial muscle belly displacement (p = 0.047) and contraction velocity (p = 0.018) were lower during compression-only CPR than during standard CPR. Participants who had trained previously with feedback devices achieved better CPR quality results in both protocols. Half of participants chose bag-valve-mask to perform ventilations but attained lower significant ventilation quality than the other subjects. Conclusions: Compression-only CPR induces higher AMF than standard CPR. Significantly higher fatigue levels were found during the fifth CPR test period, regardless of the method. Adequate rescuer’s strength seems to be a requisite to take advantage of CPR quality feedback devices. Training should put more emphasis on the quality of ventilation during CPR.
PB PLoS ONE
SN 19326203
YR 2018
FD 2018-09-19
LK http://hdl.handle.net/11093/3721
UL http://hdl.handle.net/11093/3721
LA eng
NO PLoS ONE, 13(9): e0203576 (2018)
NO Sociedad para el Desarrollo de Cantabria (SODERCAN) | Ref. RH16-XX-023
DS Investigo
RD 04-dic-2024