Every other Saturday, LeeAnna Channell gets together with a class of about 40 people and meets them at Left Nut Brewing Co. They’re not just going to have a drink, although they do that, too. They're going to workout. “The way I see it is we’re all probably going to go have a beer on a Saturday night anyway,” said Channell, founder and owner of Rockstar Fitness. “So let’s work off the calories and then go have that beer.” In her own words, Pound, the type of workout she teaches at Left Nut Brewing, is a “big cardio rockout party.” You can hear it from the parking lot ― sticks banging on the ground, music blaring from the speakers. Each person is standing or sitting, depending on what Channell, a certified Pound Pro, is instructing them to do. As the music plays, the neon green Ripstix, which are similar to drum sticks, are lifted in the air or hit on the ground to the beat of the music.