In This Article
Key Takeaways
- Repeated sun salutations function as a genuine cardiovascular workout, not just a warm-up ritual.
- The alternating forward folds and backbends toggle your nervous system between calming and activating states.
- Ten rounds is a common benchmark in intermediate flow classes because it’s roughly where the cardio and strength benefits become significant.
Ten rounds of sun salutations does more than warm up your muscles, it raises your heart rate into genuine cardio territory, alternates your nervous system between calm and activation with every forward fold and backbend, and quietly builds strength through repeated bodyweight holds. Here’s what’s actually happening in your body when a class asks for that many rounds.
More than a warm-up
Suryanamaskar is often introduced as a beginner sequence, something to “get through” before the real practice starts. But research tells a different story. A study covered by ISSA’s yoga program found that just ten minutes of a high-intensity sun salutation sequence was enough to noticeably raise the heart rate, with other research showing sun salutations can push the heart rate into genuine endurance training zones. In other words, by the time you’re several rounds in, you’re not warming up anymore, you’re training.
Tip: If ten rounds feels like “just the beginning” of class, that’s actually the sequence doing exactly what it’s designed to do, building real cardiovascular stamina before the rest of the flow even begins.
What repetition does to your heart
Yoga Basics notes that as you transition from one pose to the next, your heart pumps more vigorously, strengthening the cardiovascular system and improving circulation with each round. This is why some practitioners suggest at least six rounds and others recommend up to twelve, the “right” number is really about finding where your own heart rate climbs into a training zone rather than staying in warm-up territory.
The push-pull on your nervous system
Sun salutations alternate constantly between forward folds and backbends, and that alternation isn’t incidental, it maps directly onto your nervous system. Forward folds tend to stimulate the parasympathetic (calming) nervous system, while backbends activate the sympathetic (energizing) side. Moving repeatedly between the two is part of why a full round of sun salutations can leave you feeling both energized and calm at the same time, rather than simply tired.
Tip: Pay attention to your breath quality by round five or six. If it starts feeling ragged, that’s useful data, not failure, it usually means you’re right at the edge of your current cardio capacity, which is exactly where fitness gets built.
The strength training hiding in plain sight
Because sun salutations require you to hold up your own bodyweight through several transitions, plank, low push-up, upward dog, they function as a legitimate bodyweight strength exercise, not purely a cardio or flexibility drill. Held even briefly across many rounds, these transitions accumulate real muscular work in the shoulders, core and legs, which is part of why a flow-heavy class can leave your arms shaking by the end without a single dumbbell in sight.
Why the count matters
Ten rounds isn’t an arbitrary number, it tends to be roughly where the cumulative cardiovascular and strength effects become substantial rather than marginal. That’s part of why many intermediate flow classes, including our BENDY sessions, build toward that range rather than stopping at the three or four rounds typical of a gentler beginner warm-up.
If ten rounds currently feels like a lot, that’s a completely normal starting point, and it’s exactly the kind of stamina that builds within a few weeks of consistent practice.
“Students are often surprised that Surya Namaskar alone can leave them breathless. I remind them, that’s not a warm-up failing to be gentle enough, that’s your cardiovascular system actually training.”
— Anjali Pandey
Frequently Asked Questions
How many sun salutations should a beginner do?
Starting with one or two rounds and gradually building up over weeks is a sensible approach, rather than jumping straight to ten.
Is Suryanamaskar really a cardio workout?
Yes, research shows that a sustained sequence of sun salutations can raise the heart rate into genuine aerobic training zones, not just a mild warm-up effect.
Why do I feel calm and energized after sun salutations?
The alternation between forward folds and backbends toggles your nervous system between its calming and activating branches, which can create that combined effect.
Is it normal to feel out of breath during rounds of sun salutations?
Some breathlessness by the later rounds is common and reflects real cardiovascular effort, though if breath becomes uncomfortably strained, it’s fine to pause or slow down.
Do sun salutations build muscle, or just flexibility?
Both. The repeated bodyweight holds in plank and upward-facing dog contribute genuine strength benefits alongside the flexibility gains.
Next time a class asks for ten rounds, it’s worth remembering that the count isn’t filler before the “real” poses begin. It’s often the most physiologically active part of the whole practice.
Want to feel the difference ten rounds makes? Here are a few of our latest flow videos.
About Yogaendless
Yogaendless is an online yoga studio led by Anjali Pandey, offering live group classes, private coaching, on-demand flows, corporate sessions, and retreats, with a physical home at Loft 52, Bandra, for anyone who wants to build strength, flexibility and calm, whatever their starting point.