Int J Sports Med 2020; 41(08): 512-519
DOI: 10.1055/a-1114-6297
Training & Testing

Reproducibility of Heart Rate Variability Indices at Post-maximal Exercise

Jaqueline Alves Araújo
1  Physical Education, Universidade Federal de Mato Grosso, Cuiabá, Brazil
,
2  Applied Physiology & Nutrition Research Group, School of Physical Educaton and Sport, Rheumatology Division, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, Brazil
,
Fabiula Isoton Novelli
1  Physical Education, Universidade Federal de Mato Grosso, Cuiabá, Brazil
,
César Siqueira Aleixes Mello
1  Physical Education, Universidade Federal de Mato Grosso, Cuiabá, Brazil
,
3  Faculdade de Desporto - FADEUP, Universidade do Porto, Porto, Portugal
,
1  Physical Education, Universidade Federal de Mato Grosso, Cuiabá, Brazil
,
1  Physical Education, Universidade Federal de Mato Grosso, Cuiabá, Brazil
› Author Affiliations
This work was supported by Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq -Process 434695 /2018-1), the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES) - Finance Code 001 and Secretaria de relações internacionais (SECRI/UFMT).

Abstract

To analyze whether heart rate variability is reproducible after maximal exercise, 11 men (22.1±3.2 years) performed four incremental exercise tests followed by passive or active recovery. There was high reliability (intraclass coefficient correlation: 0.72–0.96) and fair-to-excellent agreement (coefficient of variation: 7.81–22.09%) in passive recovery, as well as moderate-to-high reliability (intraclass coefficient correlation: 0.50–0.87) and good agreement (coefficient of variation: 11.08–20.89%) in active recovery for LnRMSSD index. There was moderate-to-high reliability (intraclass coefficient correlation: 0.51–0.81) and good agreement (coefficient of variation: 10.41–18.87%) in most of the analyzed time points, in both recovery types for LnSDNN. In both types of recovery, the time domain heart rate variability 5–10 min indices (passive: intraclass coefficient correlation : 0.87–0.88; coefficient of variation: 7.67–13.44%; active: intraclass coefficient correlation 0.59–0.80; coefficient of variation: 14.62–16.26%) presented higher intraclass coefficient correlation and lower coefficient of variation than the spectral heart rate variability indices (passive: intraclass coefficient correlation: 0.71–0.87; coefficient of variation: 12.33–34.21%; active: intraclass coefficient correlation: 0.46–0.77; coefficient of variation: 24.41–105.12%). The LnRMSSD and LnSDNN indices analyzed in 30 s segments and the heart rate variability 5–10 min indices after maximal exercise in untrained healthy men showed satisfactory reproducibility, regardless of the type of recovery, with the time-domain indices showing higher reproducibility than the frequency-domain indices.



Publication History

Received: 00 00 2020

Accepted: 15 January 2020

Publication Date:
11 March 2020 (online)

© Georg Thieme Verlag KG
Stuttgart · New York