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The effects of a 6-hour ultra-endurance run on postexercise parasympathetic reactivation responses.
Fornasiero, Alessandro; Zignoli, Andrea; Pellegrini, Barbara; Schena, Federico; Doucende, Gregory; Mourot, Laurent.
Afiliación
  • Fornasiero A; Centro di Ricerca Sport, Montagna e Salute (CeRiSM), University of Verona, Rovereto, Trento, Italy - alessandro.fornasiero@gmail.com.
  • Zignoli A; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy - alessandro.fornasiero@gmail.com.
  • Pellegrini B; Department of Industrial Engineering, University of Trento, Trento, Italy.
  • Schena F; Centro di Ricerca Sport, Montagna e Salute (CeRiSM), University of Verona, Rovereto, Trento, Italy.
  • Doucende G; Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy.
  • Mourot L; Centro di Ricerca Sport, Montagna e Salute (CeRiSM), University of Verona, Rovereto, Trento, Italy.
J Sports Med Phys Fitness ; 63(6): 713-721, 2023 Jun.
Article en En | MEDLINE | ID: mdl-36884124
BACKGROUND: Alterations in cardiac autonomic control reflecting depressed parasympathetic activity have been previously reported after ultra-endurance events at rest and during dynamic tasks assessing cardiac autonomic responsiveness. This study investigated the impact of a 6-hour ultra-endurance run on parasympathetic reactivation indices, using an exercise-recovery transition approach. METHODS: Nine trained runners (VO2max 67±12 mL/kg/min) completed a 6-hour run (EXP) whilst other six runners (VO2max 66±10 mL/kg/min) served as a control (CON). Before (PRE) and after the run/control period (POST) participants completed standard cardiac autonomic activity assessments. Postexercise parasympathetic reactivation was assessed by means of heart rate recovery (HRR) and vagal-related time-domain HRV indices. RESULTS: HR was increased at rest (P<0.001, ES=3.53), during exercise (P<0.05, ES=0.38) and recovery (all P<0.001, ES from 0.91 to 1.46) at POST in EXP and not in CON (all P>0.05). At POST vagal-related HRV indices were significantly decreased at rest (P<0.001, ES from -2.38 to -3.54) and during postexercise recovery (all P<0.001, ES from -0.97 to -1.58) only in EXP. HRR at 30 and 60 s were markedly reduced at POST in EXP both when expressed in bpm and normalized for the exercising HR (all P<0.001, ES from -1.21 to -1.74). CONCLUSIONS: A 6-hour run markedly impacted upon postexercise parasympathetic reactivation responses causing a decrease in HRR and HRV recovery indices. For the first time, this study attested blunted postexercise parasympathetic reactivation responses following an acute bout of ultra-endurance exercise.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sistema Nervioso Autónomo / Ejercicio Físico Límite: Humans Idioma: En Revista: J Sports Med Phys Fitness Año: 2023 Tipo del documento: Article Pais de publicación: Italia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Sistema Nervioso Autónomo / Ejercicio Físico Límite: Humans Idioma: En Revista: J Sports Med Phys Fitness Año: 2023 Tipo del documento: Article Pais de publicación: Italia