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Why Steady-State Cardio Is the New Feel-Good Workout

by
author image Jody Braverman
Jody Braverman is a professional writer and editor based in Atlanta. She studied creative writing at the American University of Paris and received a Bachelor of Arts in English from the University of Maryland. She also received personal trainer certification from NASM and her 200-hour yoga teacher certification from YogaWorks.
Why Steady-State Cardio Is the New Feel-Good Workout
Low-intensity steady state cardio, or LISS, is becoming popular again after years of being overshadowed by the HIIT craze. Photo Credit WavebreakMediaMicro/Adobe Stock

Over the past decade, “go hard or go home” has infiltrated the fitness world, leading to the popularity of get-fit fads that aim to kick your butt by kicking your workout up a notch — or multiple notches.

Many of these hard-core, high-heart-rate fitness enthusiasts wouldn’t dare walk on the treadmill for an hour. After all, in today’s world, where time is money, why spend an hour burning calories when you could burn the same or more in 20 minutes?

That’s the big sell for workouts involving high-intensity interval training, or HIIT, a cardiovascular conditioning method that involves alternating bouts of vigorous effort with periods of slower-paced recovery. And fitness enthusiasts are buying into it in droves.

But a new trend on fitness-centered social media seems to point to the growing popularity of another attractive option for those who don’t want to go quite so hard, but who don’t want to just go home either: low-intensity steady-state cardio (LISS).

Why Is LISS Becoming Popular?

Actually, LISS is nothing new; it just never had its own hashtag until now. In fact, in the ’70s and ’80s (way before Instagram and exercise selfies) steady-state cardio was all the rage. No one who wasn’t an athlete was running sprints.

In some ways, the increasing popularity of LISS is a direct response to the emphasis on “all high-intensity all the time” from the past two decades. People are slowing things down and becoming more mindful and gentle with their bodies. Plus, it’s a lot less intimidating than jumping into a high-intensity boot camp class.

It’s also a much more realistic approach to exercise for certain populations, such as beginners, people with injuries or maybe those who are more “lazy” — the same groups that have been shut out and turned off by the high-intensity craze.

Jogging slowing on a flat terrain, riding the stationary bicycle at a slow pace and slow swimming are a few examples of LISS exercises.
Jogging slowing on a flat terrain, riding the stationary bicycle at a slow pace and slow swimming are a few examples of LISS exercises. Photo Credit Jacob Lund/Adobe Stock

What Is LISS?

Simply put, LISS involves elevating your heart rate with activity, but not letting it go over 50 percent of your maximum heart rate, and then keeping it there for an extended period of time (at least 30 minutes).

To estimate your max heart rate, subtract your age from 220. You can also use heartbeats per minute to measure intensity. Sports and conditioning coach Mike Robertson recommends keeping your BPM (beats per minute) between 120 and 150 for low-intensity exercise.

Some examples of LISS might be going for a very slow jog or a casual walk on flat terrain; riding the stationary bicycle at an easy pace of less than 5 miles per hour and at a low resistance; slow swimming; and some forms of gentle yoga. When you’re doing LISS, you might break a light sweat, but not much. Your breathing is fairly steady, and you can easily carry on a conversation with your friend on the neighboring treadmill.

However, something to keep in mind is that intensity is relative. For a novice exerciser who’s out of shape, a 30-minute walk could be a moderate- to high-intensity activity. For an athlete doing LISS on his rest day, a 45-minute jog might not take him out of the low-intensity cardio zone.

Does LISS Offer Benefits?

Yes, anytime you do something active and get your heart rate up, you’re doing something good for your body, both physically and mentally. Especially for people who work sedentary jobs — that’s most of us — just getting up and going for a 30-minute walk on your lunch break can do wonders for your heart, lungs and state of mind.

For new exercisers just starting out on the path to fitness, LISS is a safe, effective way to build cardiovascular endurance and even muscle strength, says Nick Tumminello, owner of Performance University.

“Although we have these titles ‘resistance training’ and ‘cardiovascular training,’ the fact is your body weighs something; in order to move your body around you have to use muscles,” says Tumminello. “If you haven’t been using those muscles and you start using them, they are going to have to adapt to that."

In fact, for beginners, LISS is really the only option to gain a solid fitness foundation. According to a review of research published in Sports Medicine — Open in October 2015, low-intensity exercise garners better exercise adherence — meaning you’re more likely to stick with a low-intensity cardio program — and has a lower risk of injury.

Although the review looked at the effects of low-intensity cardio in older populations, ease of compliance and low risk of injury are important factors to consider for beginners building a sustainable exercise routine.

But even exercise enthusiasts and athletes benefit from LISS. You simply can’t “go hard” all the time. If you do, you’re setting yourself up for overtraining injuries. “Your body only grows and improves in the recovery time, and it’s unrealistic to ask your body to keep that sort of intensity at every workout,” says Tumminello. “Steady-state cardio allows you, basically, active recovery.”

Especially if you’re strength training, there are going to be days when you need to rest to allow your muscles to repair. “The problem is,” Tumminello says, “when you’re also resting you’re not doing any sort of activity. So it’s kind of a happy middle ground, where it allows you to be active and prevent any sort of stiffness from lack of activity, but not interfere with the recovery process your body goes through.”

Although HIIT is good for boosting your metabolism, beginners are more likely to stick to a LISS routine, and it'll put them at a lower risk of injury.
Although HIIT is good for boosting your metabolism, beginners are more likely to stick to a LISS routine, and it'll put them at a lower risk of injury. Photo Credit Drobot Dean/Adobe Stock

What’s Better for You: LISS or HIIT?

If your goal is fat loss, you’re going to need more than LISS at least a few times a week. The higher the intensity of your workout, the more calories you’ll burn and the more fat you’ll shed.

Just take a look at the numbers. According to Harvard Health Publications, a 155-pound person walking at an easy pace of 3.5 miles per hour burns about 300 calories an hour. Brisk walking at a pace of 4.5 miles per hour burns about 370 calories and running at a pace of six miles per hour burns 740 calories per hour for that same person. That’s a huge difference calorie-wise, and you’ll see the difference around your waistline.

For many people, running at a steady pace of six miles an hour for anything more than a mile or two isn’t going to happen. That’s where HIIT comes in. With HIIT, you get your heart rate to skyrocket for between 30 seconds and four minutes, and then you get a period of recovery until you’re ready for the next round.

HIIT has also been shown to raise your metabolic rate, or the speed at which your body burns calories, both during and after exercise. This is called the EPOC effect, or excess post-exercise oxygen consumption, and health and fitness expert Pete McCall says HIIT is the best way to stimulate this effect.

The quickness with which HIIT improves performance and health parameters also can’t be beat. “A lot of the benefits that you get from cardiovascular exercise — increased endurance, blood glucose, fat burning — these things can be improved in a lot shorter period of time,” says Tumminello. “We have also seen people’s endurance and sprint time, even in athletes, improve from interval-type training. It does help you get the same benefits in a shorter period of time.”

A well-rounded fitness program will include both HIIT and LISS days -- though there's no reason you'll ever need to go hard if you're just trying to maintain a basic level of fitness.
A well-rounded fitness program will include both HIIT and LISS days -- though there's no reason you'll ever need to go hard if you're just trying to maintain a basic level of fitness. Photo Credit V&P Photo Studio/Adobe Stock

Is There a Happy Middle Ground?

Fitness trends tend to take an all-or-nothing-approach, but getting in shape, losing weight, building strength and becoming healthier isn’t black-and-white. “What’s misplaced is to argue one versus the other as if they’re mutually exclusive — they’re not. They’re complementary,” says Tumminello.

A well-rounded fitness program includes high-intensity days and low-intensity days. If cardio is all you do, try adding in one or two HIIT workouts a week, equally spaced between your lower-intensity workouts. If you strength train or do sport-specific training (which often qualifies as HIIT, depending on your training routine), balance your high-intensity workouts with rest days during which you do a long, slow LISS cardio workout.

On the other hand, if all you want to do is maintain a basic level of fitness, clear your head and chat with your friends on the treadmill, there’s really no reason you ever need to go hard. Go at your own pace — even if it’s really, really, really slow — and then go home.

What Do YOU Think?

Do you incorporate more LISS or HIIT in your workout routine? If so, which one do you prefer? Did this article change your opinion regarding low-intensity steady state cardio? What's your go-to LISS workout?

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