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Postexercise autonomic function after repeated-sprints training.

Gianluca Vernillo1,2,3, Luca Agnello4, Andrea Barbuti5,6

  • 1Department of Biomedical Sciences for Health, Università degli Studi di Milano, via Kramer 4/a, 20133, Milan, Italy. gianluca.vernillo@unimi.it.

European Journal of Applied Physiology
|July 29, 2015
PubMed
Summary
This summary is machine-generated.

Repeated-sprint (RS) training effectively enhances postexercise parasympathetic reactivation (PNSr) in healthy adults. Heart rate recovery (HRR60s) can evaluate adaptations to RS training.

Keywords:
Cardiac autonomic functionHeart rate recoveryHeart rate variabilityRepeated-sprint ability

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Area of Science:

  • Exercise Physiology
  • Autonomic Nervous System Function
  • Cardiovascular Adaptations

Background:

  • Parasympathetic reactivation (PNSr) is crucial for postexercise recovery.
  • Repeated-sprint (RS) training is a time-efficient exercise modality.
  • Understanding the impact of RS training on autonomic function is important for optimizing training protocols.

Purpose of the Study:

  • To investigate the effects of an 8-week RS training protocol on postexercise parasympathetic reactivation (PNSr) in healthy adults.
  • To assess changes in heart rate recovery (HRR) and heart rate variability (HRV) indices following RS training.
  • To determine if RS training improves autonomic recovery after exercise.

Main Methods:

  • Eighteen healthy male adults were divided into an RS training group (EXP) and a control group (CON).
  • The EXP group underwent 8 weeks of RS training (3 times/week).
  • Postexercise heart rate recovery (HRR) and heart rate variability (HRV) were measured, along with repeated-sprint ability (RSA) performance.

Main Results:

  • RS training significantly improved repeated-sprint ability, indicated by a decrease in total sprint time.
  • The RS training group exhibited significantly greater improvements in postexercise parasympathetic reactivation (PNSr) compared to the control group.
  • Strong correlations were observed between improvements in sprint performance and enhanced heart rate recovery (HRR60s).

Conclusions:

  • Repeated-sprint (RS) training is an effective strategy for enhancing postexercise parasympathetic reactivation (PNSr) in healthy adults.
  • Heart rate recovery (HRR60s) serves as a reliable indicator for evaluating positive adaptations to RS training.
  • RS training may contribute to improved cardiovascular autonomic regulation.