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Hardest. Class. Ever. Intervals on the step are hard. The unique circuit-like structure of this class takes the intervals to a new level of hard! Using the board in creative ways, this athletic workout can be modified to accommodate various fitness levels while challenging your most hard-core athlete.

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If you need help selecting appropriate study materials for your fitness education, registering for an ACE exam or answering any questions about your certification, we’re here to help. Expert consultants are available via e-mail at, on Live Chat or by phone at the number below Monday-Friday, 5 a.m. to 6 p.m. (PST).

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