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Yoga has long carried the same reputation: a gentle, slow, almost meditative activity, worlds away from a real cardiovascular workout. But in recent years, another idea has been gaining traction, driven by dynamic yoga and hot yoga classes: what if yoga could work the heart just as well as a running session?
So, who's right? Can dynamic yoga really improve your cardio, or is this a myth kept alive by fitness marketing?
The answer is neither entirely yes nor entirely no, and it's more interesting than it seems.
In this article, the Idolem team takes a closer look at what science really says about dynamic yoga and its effects on cardiovascular health.
Before settling the debate, it's important to distinguish between styles of yoga. Not all of them are equal in terms of physical intensity.
It's this diversity of styles that explains much of the confusion: the experience of a gentle class has nothing to do with that of a dynamic hot yoga class, and yet both go by the same generic name.
This belief rarely comes out of nowhere. It usually stems from a first experience with a gentler class, or from yoga's popular image: postures held in silence, slow breathing, no machines, no visible breathlessness.
In the popular imagination, cardio is measured by dripping sweat and gasping breath, a standard modeled on running, cycling, or the elliptical. Compared to that benchmark, a yoga class can seem, wrongly, to belong to a different category than cardiovascular training.
The problem is that this perception doesn't account for dynamic styles, where the body is in nearly continuous motion for 45 to 60 minutes.
Here, the data is more nuanced than the myth suggests. Yoga does in fact improve several cardiovascular health markers, often comparably to other forms of aerobic exercise. According to a Quebec study highlighted by CTV News Montreal, regular yoga practice is linked to lower blood pressure, with researchers also pointing to benefits for lipid profile and resting heart rate, gains largely attributed to activation of the parasympathetic nervous system through breathing and movement.
This mechanism differs from that of running, which engages the cardiovascular system mainly through pure aerobic effort. But the measured results are similar: a more efficient heart, better-controlled blood pressure, and better overall recovery.
Dynamic yoga adds another dimension: sustained sequences measurably raise the heart rate during class, particularly during repeated sun salutations or quick transitions between postures. This same principle is what makes yoga useful as a complement to athletic training, notably for athletes' muscle recovery.
Heat changes the equation. Practiced in a heated room like those at Idolem studios, a dynamic sequence demands more of the cardiovascular system: the heart works both to supply oxygen to the muscles and to help the body cool itself.
The result: for the same movements, a hot yoga class generally raises the heart rate higher than an equivalent class practiced in a cooler room. This is one of the points we already discussed in detail in our article on why yoga is a complete workout for people who don't like the gym.
Our tip: if your main goal is cardio, choose a dynamic (solar) class over a gentle (lunar) one. Both have their place in a balanced routine, but they don't meet the same need.
The truth lies somewhere in between, with a clear edge toward reality. Dynamic yoga does genuinely improve cardiovascular health: blood pressure, cholesterol, resting heart rate, and stress management all benefit, backed by scientific evidence.
What it doesn't necessarily do is replace pure cardio training for those aiming for maximum endurance performance, like a running or competitive cycling goal. For most people, however, a regular practice (2 to 3 times a week) is more than enough to generate concrete, measurable cardiovascular benefits.
Yes. Dynamic sequences combined with the heat of the room noticeably raise the heart rate during class, particularly during sun salutations and quick transitions.
For general cardiovascular health, yes, largely. For a pure endurance performance goal, however, dynamic yoga remains an excellent complement rather than a full replacement.
Solar classes, which are more dynamic and energetic, are best suited to a cardio goal. Discover our full range of hot yoga classes to find the one that matches your goals.
The first effects on blood pressure and resting heart rate generally appear after a few weeks of regular practice, at a pace of 2 to 3 sessions per week.
So, myth or reality? A bit of both, but enough reality to earn a real place in your training routine. Find the Idolem studio nearest you and see for yourself what dynamic yoga can do for your cardio.