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Related Experiment Video

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Neural adaptations after short-term wingate-based high-intensity interval training.

A Vera-Ibañez1, D Colomer-Poveda, S Romero-Arenas

  • 1Departamento de Ciencias de la Actividad Física y del Deporte, Facultad de Deporte - UCAM, Universidad Católica de Murcia, Spain.

Journal of Musculoskeletal & Neuronal Interactions
|December 5, 2017
PubMed
Summary
This summary is machine-generated.

Short-term High Intensity Interval Training (HIIT) significantly boosted peak power and spinal excitability in males. However, it did not enhance maximum voluntary contraction, suggesting limited central motor drive adaptation.

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Area of Science:

  • Exercise Physiology
  • Neuroscience
  • Sports Science

Background:

  • High Intensity Interval Training (HIIT) is a popular training method.
  • Understanding the neural adaptations to HIIT is crucial for optimizing training protocols.
  • Low-volume HIIT protocols may offer an efficient alternative for achieving training adaptations.

Purpose of the Study:

  • To investigate the neural adaptations following a 4-week low-volume Wingate-based HIIT program.
  • To determine the effects of HIIT on Hoffmann (H-) reflex, volitional (V-) wave, maximum voluntary contraction (MVC), and peak power.
  • To assess changes in spinal excitability and central motor drive.

Main Methods:

  • Fourteen recreationally trained males participated in the study.
  • Participants were assigned to either a HIIT group or a control group.
  • Measurements included H-reflex, V-wave, MVC, and peak power during a Wingate test before and after the 4-week intervention.

Main Results:

  • The HIIT group showed significant increases in absolute and relative peak power (+14.7% and +15.0%, respectively).
  • A significant increase in H-reflex size was observed in the HIIT group (+24.5%), indicating enhanced spinal excitability.
  • No significant changes were found in MVC or V-wave parameters in either group.

Conclusions:

  • A short-term, low-volume Wingate-based HIIT program effectively enhances peak power and spinal excitability.
  • The lack of change in MVC and V-wave suggests that central motor drive adaptations are not significantly altered by this specific HIIT protocol.
  • These findings provide insights into the neural mechanisms underlying adaptations to HIIT.