Can heart rate variability determine recovery following distinct strength loadings? A randomized cross-over trial

Antonia Thamm, Nils Freitag, Pedro Figueiredo, Kenji Doma, Christoph Rottensteiner, Wilhelm Bloch, Moritz Schumann

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

This study aimed to compare the acute effects of hypertrophic (HYP) and maximum strength (MAX) loadings on heart rate variability (HRV) and to compare possible loading-specific alterations with other markers of recovery. Ten young men with strength training experience performed two leg press loadings (HYP: five times 10 repetitions at 70% of one repetition maximum (1RM) with 2 minutes inter-set rest; MAX: 15 times one repetition at 100% of 1RM with 3 minutes inter-set rest) in a randomized order. The root mean square of successive differences statistically decreased after both protocols (HYP: 65.7 ± 26.6 ms to 23.9 ± 18.7 ms, p = 0.026; MAX: 77.7 ± 37.0 ms to 55.3 ± 22.3 ms, p = 0.049), while the frequency domains of HRV remained statistically unaltered. The low frequency (LF) band statistically increased at 48h post-MAX only (p = 0.033). Maximal isometric voluntary contraction (MVC) statistically decreased after HYP (p = 0.026) and returned to baseline after 24h of recovery. Creatine kinase (CK) statistically increased above baseline at 1h post-loadings (HYP p = 0.028; MAX p = 0.020), returning to baseline at 24h post. Our findings indicate no distinct associations between changes in HRV and MVC or CK.

Original languageEnglish
Article number4353
JournalInternational Journal of Environmental Research and Public Health
Volume16
Issue number22
DOIs
Publication statusPublished - Nov 2 2019
Externally publishedYes

Keywords

  • Fatigue
  • HRV
  • MVC
  • Recovery
  • RMSSD
  • Strength performance

ASJC Scopus subject areas

  • Pollution
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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