You can easily adapt it if you're short on time.
“Keeping things simple and having multiple blocks within a single workout gives you the flexibility to do this routine wherever you are,” says Adriana Del Castillo, group fitness instructor at Tier 2 trainer at Anthem Row in Washington, D.C.
For a 20-minute workout, perform each exercise in Block A for 30 seconds, rest for 30 seconds, then repeat once more. Follow the same instructions for Blocks B and C, resting 1 minute between blocks. If you’re short on time, complete one or two blocks instead of all three.