Key result
Higher physical fitness in firefighters was associated with faster completion times in simulated rescue interventions, but did not influence post-exercise parasympathetic reactivation.
Why the study?
To assess the influence of firefighters' physical fitness on performance and parasympathetic reactivation in rescue interventions, and to test the validity of post-exercise ultra-short-term heart rate variability.
Does physical fitness influence cardiac parasympathetic reactivation and performance in firefighters during simulated rescue interventions?
Comparison
Two groups based on physical fitness performing three simulated interventions
Authors
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Supports fitness emphasis for faster rescues; leaves open autonomic recovery effects.
Observational (n=24)
Does physical fitness influence cardiac parasympathetic reactivation and performance in firefighters during simulated rescue interventions?
Higher physical fitness improves firefighting performance but does not affect post-exercise parasympathetic reactivation, and ultra-short-term HRV measures are insufficiently sensitive for post-exercise assessment in this context.
Marcel‐Millet et al. (2020) conducted an observational in Healthy firefighters (n=24). High physical fitness vs. Lower physical fitness was evaluated on Completion time and post-exercise parasympathetic reactivation (LnRMSSD). Higher physical fitness in firefighters was associated with faster completion times in simulated rescue interventions, but did not influence post-exercise parasympathetic reactivation.
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