Heart rate variability in the standing position reflects training adaptation in professional soccer players

Abstract

HRV in the standing position could monitor training adaptation in intermittent sports contrary to the indicator usually employed in endurance sports. However, the significance of the HRV change in the standing position during training remains unclear.

Heart Rate Variability is Correlated with Perceived Physical Fitness in Elite Soccer Players

“…Standing sympathetic activation was demonstrated with increases in HR, LF,LFnu,and LF/HF (20,43,31,and 80%,respectively). Our results are in accordance with previous studies showing that standing HRV better reflects training loads of soccer players while usual supine HRV indices remain unchanged (Ravé and Fortrat, 2016).…”

“…Among these parasympathetic indices, the Roots Mean Square of the Successive Differences (RMSSD) has been widely used given its robustness for aerobic training monitoring (Buchheit, 2014). However, previous studies in team sports showed contradictory results with regard to RMSSD (Flatt et al, 2016(Flatt et al, , 2017Nakamura et al, 2015;Ravé and Fortrat, 2016). For instance, its logarithmic version (Ln RMSSD) after submaximal efforts seems useless for identifying players' adaptation to training loads (Thorpe et al, 2016).…”

“…Such is the case of soccer, which could be considered as an "intermittent sport" (Bangsbo, 1994). Therefore, monitoring vagal modulations would be insufficient in soccer given that performance depends more on abilities than aerobic capacity (Ravé and Fortrat, 2016).…”

“…For instance, recording during standing is needed to show the long-term HRV decrease after an interval training session (Mourot et al, 2004). We have also recently demonstrated that a standing position is needed to follow up the chronic training adaptations in professional soccer players (Ravé and Fortrat, 2016). Furthermore, Schmitt et al (2015) characterised different types of fatigue when analysing HRV in both supine and standing positions.…”

Zipf’s Law of Vasovagal Heart Rate Variability Sequences

“…Zipf’s law represents another argument for cardiovascular self-organized criticality but without physiological and medical implications, contrary to Gutenberg Richter’s law [ 2 , 4 , 10 ]. Beat-by-beat recordings of the heart rate are easy to obtain by means of commercially available heart rate monitors, facilitating the study of its complex dynamics [ 13 , 14 ]. However, it is still unknown whether Gutenberg Richter’s law, determined by blood pressure and heart rate recordings, and Zipf’s law, determined only by heart rate recordings, provide the same information.…”