Is low-frequency electrical stimulation a tool for recovery after a water rescue? a cross-over study with lifeguards
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Is low-frequency electrical stimulation a tool for recovery after a water rescue? a cross-over study with lifeguardsAutor(es)
Fecha
2020-08-12Cita bibliográfica
Barcala-Furelos R, González-Represas A, Rey E, Martínez-Rodríguez A, Kalén A, Marques O, Rama L. Is low-frequency electrical stimulation a tool for recovery after a water rescue? a cross-over study with lifeguards. Int J Environ Res Public Health. 2020 Aug 12;17(16):5854.
Resumen
[Abstract]
This study aimed to evaluate the degree to which transcutaneous electrical stimulation (ES) enhanced recovery following a simulated water rescue. Twenty-six lifeguards participated in this study. The rescue consisted of swimming 100 m with fins and rescue-tube: 50 m swim approach and 50 m tow-in a simulated victim. Blood lactate clearance, rated perceived effort (RPE), and muscle contractile properties were evaluated at baseline, after the water rescue, and after ES or passive-recovery control condition (PR) protocol. Tensiomiography, RPE, and blood lactate basal levels indicated equivalence between both groups. There was no change in tensiomiography from pre to post-recovery and no difference between recovery protocols. Overall-RPE, legs-RPE and arms-RPE after ES (mean ± SD; 2.7 ± 1.53, 2.65 ± 1.66, and 2.30 ± 1.84, respectively) were moderately lower than after PR (3.57 ± 2.4, 3.71 ± 2.43, and 3.29 ± 1.79, respectively) (p = 0.016, p = 0.010, p = 0.028, respectively). There was a significantly lower blood lactate level after recovery in ES than in PR (mean ± SD; 4.77 ± 1.86 mmol·L−1 vs. 6.27 ± 3.69 mmol·L−1; p = 0.045). Low-frequency ES immediately after a water rescue is an effective recovery strategy to clear out blood lactate concentration.
Palabras clave
Transcutaneous electric nerve stimulation
Task performance and analysis
Tensiomyography
Lactate
Lifesaving
Task performance and analysis
Tensiomyography
Lactate
Lifesaving
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Derechos
Creative Commons Attribution 4.0 International License (CC-BY 4.0)
ISSN
1661-7827