Fitness through 'battle ropes'

... at Crunch gym in Chelsea. Welcome to Powerwave battle ropes, a class not meant for the faint of heart. "I usually take yoga classes," said Ambyr D'amato, a Crunch yoga instructor. "I like that I can actually use some of my yoga moves to my advantage ...

http://www.myfoxny.com/story/24376780/fitness-through-battle-ropes