We tried it: H.I.I.T. It Hard at Relentless Fitness

Philly.com (blog)We tried it: H.I.I.T. It Hard at Relentless FitnessPhilly.com (blog)“I really think it's important to have a solid base of strength fitness under your belt,” Michele Rogers, resident muscle mechanic at Relentless Fitness, said of her 'H.I.I.T. It Hard' high intensity interval training class. After running eight miles ...