ArticleEuropean journal of applied physiology2026
Repeatability of heart-rate variability and baroreflex sensitivity as metrics of cardiac autonomic function during exercise in young females and males.
Article in European journal of applied physiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06617117 (Dynamic Acute Responses of Different Intensity-dependent Exercises on the Autonomic and Vascular Systems in People With Coronary Artery Disease), which is not on this map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Dynamic Acute Responses of Different Intensity-dependent Exercises on the Autonomic and Vascular Systems in People With Coronary Artery Disease
Who cites it
1 citing paper in PubMed.
- Dynamic Changes in Cortical Activation Patterns During Incremental Load Among Athletes of Different Sports Types.Brain and behavior · 2026Article
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PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeWe examined the inter-day repeatability of cardiovagal baroreflex sensitivity (BRS) and heart rate variability (HRV) metrics during a dual-intensity cycling protocol in healthy young males and females.
methodsForty young adults (20 males, 20 females; age: 18-31 years) completed two randomized reclined cycling bouts at a moderate (50% heart rate reserve [HRR]) and vigorous (80% HRR) exercise intensity on separate days. HRV metrics and spontaneous BRS were analyzed over 2-min bins, using RR intervals and beat-to-beat systolic pressure obtained in a semi-recumbent position. The repeatability of BRS and HRV metrics was examined using coefficients of variation (CV), intra-class correlation coefficients (ICC), and Bland-Altman plots with 95% limits of agreement.
resultsBRS showed overall good-to-excellent inter-day repeatability, which was similar across sex and exercise intensities (Females: 50%HRR: CV = 14%, ICC = 0.86, 95% LOA: -1.85 to 1.48 ms/mmHg; 80% HRR: CV = 20%, ICC = 0.86, 95% LOA: -2.24 to 1.98 ms/mmHg; Males: 50% HRR CV = 15%, ICC = 0.82, 95% LOA: -2.10 to 1.78 ms/mmHg; 80% HRR CV = 22%, ICC = 0.77, 95% LOA: -2.69 to 2.07 ms/mmHg). Vagal-related HRV metrics (high-frequency power, SD1, SDNN) exhibited good inter-day repeatability, not altered by vigorous-intensity exercise, with females showing lower repeatability for SD1 and SDNN compared to males (female: CV ~ 20-25%, ICC:0.70-0.85; male: CV ~ 15-20%; ICC:0.75-0.90). The root-mean square of successive differences exhibited the greatest repeatability for HRV metrics, being similar across sex and exercise intensity (CV ~ 13-16%, ICC ~ 0.90).
conclusionsBRS and vagal-related HRV metrics were repeatable during cycling across intensities and sex, supporting their use in detecting cardiac autonomic changes in clinical and active populations. CLINICAL TRIALS: GOV REGISTRATION ID: NCT06617117.
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