---
title: Health & Fitness Blog - NASM | HIIT
description: HIIT | For health and fitness topics, backed by the latest research in the field, browse our blog for industry-leading findings.
---

 

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[Fitness](http://blog.nasm.org/tag/fitness) [HIIT](http://blog.nasm.org/tag/hiit)

## [Exploring Excess Post-Exercise Oxygen Consumption (EPOC): 'Burn Baby Burn!'](http://blog.nasm.org/excess-post-exercise-oxygen-consumption)

[Geoff Lecovin](http://blog.nasm.org/author/geoff-lecovin) |  February 11, 2021

 EPOC is the acronym for Excess Post-exercise Oxygen Consumption. Many refer to it as the "afterburn." To better understand how EPOC works, let's review the basics of energy systems.

[Read More](http://blog.nasm.org/excess-post-exercise-oxygen-consumption)

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[HIIT](http://blog.nasm.org/tag/hiit)

## [HIIT Workouts: Programming, Exercises, and Benefits](http://blog.nasm.org/hiit-workout-plan)

![Pete McCall](https://blog.nasm.org/hubfs/Pete-McCall_avatar_1566920725-110x110%20(1).jpg) 

[Pete McCall](http://blog.nasm.org/author/pete-mccall) |  December 30, 2020

 One of the most common misperceptions that many fitness enthusiasts have about exercise is that it is necessary to spend hours working hard and sweating buckets to get results.

[Read More](http://blog.nasm.org/hiit-workout-plan)

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[CPT](http://blog.nasm.org/tag/cpt) [Fitness](http://blog.nasm.org/tag/fitness) [HIIT](http://blog.nasm.org/tag/hiit) [NASM CPT Podcast](http://blog.nasm.org/tag/nasm-cpt-podcast)

## [The NASM-CPT Podcast: The One Where We Talk HIIT and SIT](http://blog.nasm.org/fitness/the-nasm-cpt-podcast-ep-17)

![National Academy of Sports Medicine](https://blog.nasm.org/hubfs/13442383_10154150083743950_8553850781724889232_n.png) 

[National Academy of Sports Medicine](http://blog.nasm.org/author/national-academy-of-sports-medicine) |  December 12, 2019

 In this episode, Rick discusses the differences in Sprint Interval Training (SIT) and High Intensity Interval Training (HIIT) and the benefits of both including:

[Read More](http://blog.nasm.org/fitness/the-nasm-cpt-podcast-ep-17)

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[HIIT](http://blog.nasm.org/tag/hiit) [Sports Performance](http://blog.nasm.org/tag/sports-performance)

## [HIIT, HVIT, or VIIT: Do you Know the Differences?](http://blog.nasm.org/sports-performance/hiit-hvit-viit-know-differences)

![Fabio Comana](https://blog.nasm.org/hubfs/Fabio-Comana_avatar_1431619940-110x110.jpg) 

[Fabio Comana](http://blog.nasm.org/author/fabio-comana) |  June 1, 2018

 High-intensity interval training (HIIT) is all the rage in the fitness world. No doubt you’ve seen various benefits touted just about everywhere, but what is the actual science behind this training design? Would a high-volume interval training (HVIT) ...

[Read More](http://blog.nasm.org/sports-performance/hiit-hvit-viit-know-differences)

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[![three people running on treadmills](https://blog.nasm.org/hs-fs/hubfs/meta%20conditioning.jpg?width=723&name=meta%20conditioning.jpg)](http://blog.nasm.org/fitness/metabolic-conditioning-moving-beyond-cardio)

[Fitness](http://blog.nasm.org/tag/fitness) [HIIT](http://blog.nasm.org/tag/hiit) [Training Benefits](http://blog.nasm.org/tag/training-benefits) [Weight Loss](http://blog.nasm.org/tag/weight-loss) [Cardio](http://blog.nasm.org/tag/cardio)

## [Metabolic Conditioning: Moving Beyond Cardio](http://blog.nasm.org/fitness/metabolic-conditioning-moving-beyond-cardio)

![Josh Elsesser](https://blog.nasm.org/hubfs/Josh-Elsesser_avatar_1491247623-110x110.jpeg) 

[Josh Elsesser](http://blog.nasm.org/author/josh-elsesser) |  May 11, 2017

 Metabolic conditioning is more than just cardiorespiratory exercise. As a fitness professional, you need to be able to design a conditioning program for your clients that effectively addresses their unique physiology, as well as providing them the ...

[Read More](http://blog.nasm.org/fitness/metabolic-conditioning-moving-beyond-cardio)

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[Fitness](http://blog.nasm.org/tag/fitness) [HIIT](http://blog.nasm.org/tag/hiit) [Sports Performance](http://blog.nasm.org/tag/sports-performance) [Training Benefits](http://blog.nasm.org/tag/training-benefits)

## [Utilizing Sprint Interval Training for Weight Loss](http://blog.nasm.org/training-benefits/utilizing-speed-training-weight-loss)

[Brian Oddi, Ph.D., CPT, NASM-PES, NASE-CSS](http://blog.nasm.org/author/brian-oddi-ph-d-cpt-nasm-pes-nase-css) |  April 20, 2017

 There are many individuals who are striving to stay healthy and fit, however, they lack time to dedicate to a fitness program due to the busy demands of family, work, and pleasure.

[Read More](http://blog.nasm.org/training-benefits/utilizing-speed-training-weight-loss)

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[CPT](http://blog.nasm.org/tag/cpt) [HIIT](http://blog.nasm.org/tag/hiit) [Weight Loss](http://blog.nasm.org/tag/weight-loss) [Nutrition](http://blog.nasm.org/tag/nutrition)

## [Do You have to Exercise at a Low Intensity to Burn Fat?](http://blog.nasm.org/certified-personal-trainer/myths-of-weight-management-you-have-to-exercise-at-a-low-intensity-to-burn-fat)

![National Academy of Sports Medicine](https://blog.nasm.org/hubfs/13442383_10154150083743950_8553850781724889232_n.png) 

[National Academy of Sports Medicine](http://blog.nasm.org/author/national-academy-of-sports-medicine) |  December 11, 2016

 Despite an enormous amount of research on the topic, there is still some confusion over the relationship of cardiorespiratory training intensity to fat expenditure.

[Read More](http://blog.nasm.org/certified-personal-trainer/myths-of-weight-management-you-have-to-exercise-at-a-low-intensity-to-burn-fat)

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