One easy way to join in the fun: buy or improvise an agility ladder.

Theres no strict rule for size, but 16-inch squares are typical.

Drills involve stepping in and out of the boxes, aiming for speed and accuracy.

The fast footwork means these drills also count as interval cardio.

For a ladder-based workout, check out this one from Thrive.

Ladder Lunacy| Thrive with Jen Sinkler

Photo bystroopsmma.