Short-Term Cardiac Autonomic Recovery after a Repeated Sprint Test in Young Soccer Players

• Main Authors: Cesar Cavinato Cal Abad (Author), Lucas Adriano Pereira (Author), Vinicius Zanetti (Author), Ronaldo Kobal (Author), Irineu Loturco (Author), Fabio Yuzo Nakamura (Author)
• Format: Book
• Published: MDPI AG, 2019-04-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

The aim of this study was to describe the time course (within 2 h post-exercise) of heart rate variability (HRV) recovery following a traditional repeated sprint ability (RSA) test applied to youth soccer players. Twenty-four young soccer players (18.4 ± 0.5 years) undertook the following assessments: (1) 10 min rest in the seated position for HRV assessment; (2) a repeated sprint ability (RSA) test; (3) passive recovery in the seated position for 10 min, immediately after finishing the RSA test and 1 h and 2 h post-RSA test. During the HRV measurements (using the natural log of root mean square difference of successive normal RR intervals—lnRMSSD) the participants were instructed to assume a comfortable sitting position, remaining awake and breathing spontaneously for 10 min. Magnitude-based inference was used in the analyses. After the RSA test, the post-1 h measure was almost certainly lower than the resting measure, but almost certainly higher than the lnRMSSD measured post-RSA test. The lnRMSSD post-2 h was likely lower than the resting lnRMSSD and very likely higher than post-1 h. In conclusion, lnRMSSD is severely depressed after performing an RSA test, and reactivation is incomplete after 2 h of passive recovery. This result should be considered by practitioners when applying successive training sessions within intervals shorter than 2 h.

Item Description

2075-4663
10.3390/sports7050102