<http://schema.org/description>
"Burn calories and raise your anaerobic threshold with this 30-60-90 mixed interval workout. You&amp;#39;ll vary between moderate and high-intensity&amp;amp;#8203; effort."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.verywell.com/30-60-90-mixed-interval-training-workout-1231258>