Cardio Yoga Review: Heart Rate Test Results
I tested a 30-minute power yoga cardio class with Travis Eliot wearing a Polar chest-strap heart rate monitor. Then I compared the numbers to a HupSix workout. Here's what happened.
The Numbers
- Cardio Yoga (Travis Eliot): 11 total cardio zone credits in 30 minutes
- HupSix: 40 to 50+ cardio minutes in 30 minutes
That gap is significant. But understanding why requires knowing how cardio zones actually work.
Not All Heart Rate Zones Count the Same
Zone 1 does not count toward your weekly cardio credit at all. In this session the breakdown looked like this:
- Zone 1: 9 minutes 55 seconds
- Zone 2: 8 minutes 38 seconds
- Zone 3: 1 minute 31 seconds
Zones 3, 4, and 5 count double because that is where real cardiovascular adaptation happens. That is how 30 minutes of movement produces only 11 cardio credits.
Two workouts can both be 30 minutes long and deliver completely different results depending on where your heart rate actually goes.
What Actually Raised My Heart Rate
The one moment that bumped my heart rate into Zone 3 was a short burst of mountain climbers. That is not a traditional yoga movement. It is a common pattern in cardio yoga formats where a few non-yoga elements do the cardiovascular work while most of the class stays in lower zones.
That does not make it a bad workout. It changes what it actually is.
Is Yoga Cardio or Recovery?
Yoga is genuinely useful. But most exercise science does not classify it as cardio training. My Polar device labeled this session as recovery training, not cardio. Recovery supports fitness and helps you move and feel better. It is not the same as training your cardiovascular system on purpose. That distinction matters if cardio is your goal.
The Last 5 Minutes Tell the Story
In this yoga class the final five or six minutes are savasana. You are lying on the floor resting. That downshift is a big part of why yoga is so popular.
In a HupSix workout the last five minutes are the most intense part of the class. Your heart rate is climbing and you finish with momentum. Same 30 minutes on the clock. Very different training outcomes.
Who Cardio Yoga Is Right For
Cardio yoga is great for flexibility, stress relief, and recovery. It is not cardio training. This session delivered 11 cardio minutes out of 30. To hit the 150 minutes of weekly cardio recommended by the American Heart Association, you would need to do this workout 14 times. Let's stop calling something what it is not. Yoga is not cardio.
