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Are there relationship between internal and external load of aerobic training with heart rate variability in women? / Há relação da carga interna e externa do treinamento aeróbio com variabilidade da frequência cardíaca em mulheres?
Braz, Tiago Volpi; Nakamura, Fábio Yuzo; Esco, Michael; Ornelas, Felipe; Moreno, Marlene Aparecida; Sindorf, Marcio Antônio Gonsalves; Germano, Moisés Diego; Lopes, Charles Ricardo.
  • Braz, Tiago Volpi; Piracicaba Methodist University. Piracicaba. BR
  • Nakamura, Fábio Yuzo; Chieti University. Chieti. IT
  • Esco, Michael; Alabama University. Tuscaloosa. US
  • Ornelas, Felipe; Piracicaba Methodist University. Piracicaba. BR
  • Moreno, Marlene Aparecida; Piracicaba Methodist University. Piracicaba. BR
  • Sindorf, Marcio Antônio Gonsalves; Piracicaba Methodist University. Piracicaba. BR
  • Germano, Moisés Diego; Piracicaba Methodist University. Piracicaba. BR
  • Lopes, Charles Ricardo; Piracicaba Methodist University. Piracicaba. BR
J. Phys. Educ. (Maringá) ; 31: e3148, 2020. tab, graf
Article in English | LILACS | ID: biblio-1134699
ABSTRACT
ABSTRACT The purpose was to investigate the relationship between internal training load (ITL), external training load (ETL) and heart rate variability (HRV) in women. 16 women (48.2 ± 6.4 yrs) performed HRV recordings (i.e. lnRMSSD - cardiovagal modulation) and Incremental Shuttle Walk Test (ISWT) before and after 12 aerobic training sessions. HRV threshold (HRVT) were used to prescribe aerobic ETL. The session rating of perceived exertion (s-RPE) was analyzed and served as the measure of ITL. The score found for ITL in the 12 sessions was 2878 ± 380 arbitrary units and ETL were 36822 ± 5852 m. A significant difference was observed in the lnRMSSD (3.14 ± 0.30 vs. 3.43 ± 0.38 ms−1; P = 0.001). There were observed large correlation between lnRMSSD at baseline vs ISWT (r = 0.73, P = 0.001), HRVT (r = 0.67, P = 0.004) and ITL (r = 0.62, P = 0.011). Very large correlation between individual smallest worthwhile change lnRMSSD after training and ITL (r = 0.81, P = 0.0001) was observed. There is a strong association between the HRV and aerobic performance (HRVT and ISWTdistance) and strong relationship between HRV and the potential to accumulate ITL, but not aerobic ETL in women.
RESUMO
RESUMO O objetivo foi investigar a relação da carga interna de treinamento (CIT), carga externa de treinamento (CET) e variabilidade da frequência cardíaca (VFC) em mulheres. 16 mulheres (48,2 ± 6,4 anos) realizaram medidas de VFC em repouso (variável lnRMSSD - modulação cardiovagal) e o teste incremental de caminhada (TIC) antes e depois de 12 semanas de treinamento aeróbio. O limiar da VFC (LVFC) foi utilizado para prescrição da CET. A percepção subjetiva de esforço (PSE) foi utilizada para cálculo da CIT. O valor de CIT encontrado nas 12 sessões foi de 2878 ± 380 unidades arbitrárias e para CET de 36822 ± 5852 m. Foi observada diferença significativa para lnRMSSD (3,14 ± 0,30 vs. 3,43 ± 0,38 ms−1; P = 0.001). Verificou-se uma correlação grande entre lnRMSSD basal e TIC (r = 0.73, P = 0.001), LVFC (r = 0.67, P = 0.004) e CIT (r = 0.62, P = 0.011). Foi encontrada uma correlação muito grande entre a mínima diferença detectável individual do lnRMSSD após treinamento e CIT. Conclui-se que há uma forte relação entre VFC e performance aeróbia (LVFC e TICdistância), VFC e acúmulo de CIT, porém, sem relação com a CET acumulada nas 12 semanas nas mulheres estudadas.
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Full text: Available Index: LILACS (Americas) Main subject: Women / Exercise / Heart Rate Type of study: Screening study Limits: Female / Humans Language: English Journal: J. Phys. Educ. (Maringá) Journal subject: Medicina Esportiva Year: 2020 Type: Article Affiliation country: Brazil / Italy / United States Institution/Affiliation country: Alabama University/US / Chieti University/IT / Piracicaba Methodist University/BR

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Full text: Available Index: LILACS (Americas) Main subject: Women / Exercise / Heart Rate Type of study: Screening study Limits: Female / Humans Language: English Journal: J. Phys. Educ. (Maringá) Journal subject: Medicina Esportiva Year: 2020 Type: Article Affiliation country: Brazil / Italy / United States Institution/Affiliation country: Alabama University/US / Chieti University/IT / Piracicaba Methodist University/BR