Beyond the Burpee: Why Your HIIT Workout Needs a Strategy, Not Just Sweat
By Remi — You don't need a meal plan. You need someone who actually explains why. ·
The 'Sweat Equals Success' Trap
It’s July 2026. The humidity in Toronto is currently doing a number on my curls, and I’m seeing the same trend in the gym that I’ve seen for the last decade: people treating their High-Intensity Interval Training (HIIT) sessions like a torture chamber.
We’ve been sold this idea that if you aren’t lying in a puddle of your own sweat, gasping for air like a fish out of water, you didn’t “do” HIIT. I see a lot of my clients come to me after burning out on these grueling, daily sessions, wondering why their energy levels are in the basement and their performance has plateaued.
Here’s the thing: HIIT is a tool, not a lifestyle. In my house growing up, food was community, and movement was meant to be something that sustained that community—not something that left you too exhausted to enjoy a Sunday dinner with your family. Let’s break down why your current approach might be missing the mark and how to actually use HIIT to your advantage.
The Physiology of the 'High'
HIIT is designed to improve your VO2 max and metabolic flexibility by forcing your body to work at near-maximal effort for short bursts. The beauty of this is that it’s time-efficient. The danger, however, is that it places a significant load on your Central Nervous System (CNS).
When I’m working with an amateur marathoner or a busy professional, I’m not just looking at their heart rate; I’m looking at their recovery capacity. If you approach every HIIT workout with the goal of hitting a PR, you are essentially asking your body to redline its engine every single day. Eventually, the engine blows. Your body doesn’t care about your fitness goals if it’s constantly fighting systemic inflammation and elevated cortisol levels. That’s not progress; that’s just chronic stress.
Rethinking Your Intervals: The Work-to-Rest Ratio
Most people get the 'High Intensity' part right, but they completely botch the 'Interval' part.
If you are doing 30 seconds of work and 30 seconds of rest, that isn’t necessarily HIIT. That’s circuit training. True HIIT requires enough rest to allow your heart rate to drop significantly so that you can go truly hard in the next round. If you’re too tired to maintain your form by round three, you aren’t doing HIIT anymore. You’re doing 'fatigue training,' and that’s a direct path to injury.
Here is my advice: Stop timing your rest based on the clock alone. Start timing it based on your recovery. If you are doing a 45-second sprint, you might need 90 seconds of active recovery before you can hit that same level of intensity again. If you can’t hit the same output in the last round as you did in the first, shorten your session or increase your rest time.
Nutrition: You Can’t Out-Train a Fueling Deficit
I’ve spent years getting degrees and working in sports nutrition, and if there is one thing I’ve learned, it’s that people treat their bodies like machines that run on air.
If you are hammering out HIIT sessions, your glycogen stores are being depleted rapidly. If you show up to a HIIT class fasted because you read on a forum that it 'burns more fat,' you are setting yourself up for failure. You’ll struggle to reach the intensity required to actually make the workout effective, and you’ll likely spend the rest of the day compensating with mindless snacking.
Fuel your movement. A piece of fruit or a bit of yogurt an hour before training isn't going to ruin your body composition; it’s going to give you the glucose you need to actually perform the work. Remember, the workout is just the stimulus; the adaptation happens during rest, fueled by what you put on your plate.
How to Build a Sustainable HIIT Practice
1. Stop the Daily Grind: If you are doing HIIT more than two, maybe three times a week, you aren’t giving your nervous system enough time to recover. Incorporate low-intensity steady-state (LISS) cardio—a brisk walk or a cycle—on your off days. 2. Prioritize Form Over Speed: If your burpees look like a flailing fish, dial it back. HIIT is not a race. It’s about controlled maximum effort. If your form breaks, the set is over. 3. Track Your Output: Use a heart rate monitor if you have one, or just track your performance. If your sprint speed on the bike is dropping round over round, you are overtraining.
The Bottom Line
Fitness should be an extension of your life, not a barrier to it. I want you to finish your workout feeling empowered, not depleted. HIIT is a powerful tool to sharpen your metabolic health, but like any sharp tool, you have to know how to handle it without cutting yourself.
Stop trying to 'punish' yourself into health. Start understanding how your body responds to stress and treat it with the respect it deserves. We’re in this for the long haul, not just for the next six weeks.
What’s your current HIIT routine looking like? Are you feeling energized or just plain exhausted? Let’s chat in the comments—I’m curious to see how you’re balancing the intensity. Stay consistent, stay curious, and keep moving because you love your body, not because you’re trying to change it.