HEART RATE VARIABILITY (HRV) AS A TOOL FOR OPTIMIZING TRAINING LOAD QUALITY AND RECOVERY IN COMBAT SPORTS: A NARRATIVE REVIEW
DOI:
https://doi.org/10.31435/ijitss.1(49).2026.5076Keywords:
Heart Rate Variability, Combat Sports, Training Load, Autonomic Nervous System, RecoveryAbstract
Background: Elite combat sports such as wrestling, judo, and Brazilian jiu-jitsu impose high physiological demands, necessitating precise training load management and recovery to prevent non-functional overreaching and overtraining syndrome. Heart rate variability has gained prominence as a non-invasive biomarker of autonomic nervous system balance and internal training load.
Aim: This narrative review synthesizes evidence on HRV's application for monitoring stress, recovery, and optimizing training in combat sports athletes.
Material and methods: A narrative synthesis of 23 peer-reviewed articles was conducted, drawing from databases including PubMed/MEDLINE, Web of Science, and Scopus. Focus areas included HRV physiological mechanisms, associations with performance, and combat sport-specific findings, prioritizing parameters such as RMSSD, HF power, and LF/HF ratio.
Results: Time-domain and frequency-domain HRV metrics robustly indicate parasympathetic reactivation and systemic recovery. High-intensity interval training provokes greater acute parasympathetic suppression (e.g., RMSSD -32% vs. -14%) and sympathetic dominance (LF/HF +56% vs. +22%) than volume-oriented training, yet yields superior competitive outcomes in wrestlers (mean score 17.92 vs. 15.08). HRV thresholds differentiate functional adaptation (RMSSD ≈ 82.76 ms) from non-functional overreaching (≈45.97 ms)
Conclusions: Routine HRV monitoring facilitates individualized periodization, bioadaptive load adjustments, and overtraining prevention, enhancing performance sustainability in combat sports.
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Copyright (c) 2026 Jakub Rodziewicz, Wiktor Daniszewski, Viktoria Kretschmer, Magdalena Baranowska, Ewa Sobolewska, Daniel Markowski, Patryk Kondracki, Wiktoria Knobelsdorf

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