# @iamphilmichaels on Instagram

- **Type:** Video
- **Original URL:** https://www.instagram.com/p/DUrfD51EdKH
- **Gondola URL:** https://gondola.cc/posts/59851459-iamphilmichaels-instagram
- **Thumbnail:** https://img.gondola.cc/tr:w-,h-,fo-auto/postThumbnails/938aa75794.jpg
- **Posted:** 2026-02-13T01:24:00.000+00:00
- **Account Owner:** Phil Michaels (@iamphilmichaels) — https://gondola.cc/iamphilmichaels

## Caption

WHY DO HIIT? If you get your body to work out with 12 to 20 minutes at 84 to 91% of your max heart rate, you will go into a period called EPOC which means excess post-exercise oxygen consumption which allows your body to burn an additional 200 to 400 calories over the next 36 hours doing absolutely nothing at all. This is commonly called after-burn effect. How do you find your max heart rate? You can use a wearable like WHOOP or the Apple Watch. Or, you can use the old-school method called the Karvonen method which is 220 minus your age. #exercise #hiit #afterburn #workout #gym

## Stats

- **Views:** 241
- **Likes:** 18
- **Shares:** 0
- **Comments:** 3

## Tags

exercise, afterburn, gym, workout, hiit

---
Copyright (c) Gondola