The Scientific Basis for High-Intensity Interval Training

@article{Laursen2002TheSB,
  title={The Scientific Basis for High-Intensity Interval Training},
  author={Paul B. Laursen and David G. Jenkins},
  journal={Sports Medicine},
  year={2002},
  volume={32},
  pages={53-73}
}
While the physiological adaptations that occur following endurance training in previously sedentary and recreationally active individuals are relatively well understood, the adaptations to training in already highly trained endurance athletes remain unclear. While significant improvements in endurance performance and corresponding physiological markers are evident following submaximal endurance training in sedentary and recreationally active groups, an additional increase in submaximal training… 
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