Hey! Absolutely, those old routines are gold—think of them as the original playbook. The core moves, like basic bodyweight drills and foundational flexibility work, are timeless and super effective. But we can spice them up with modern science—add in plyometrics, interval training, or tech‑tracked progress. Mix the classic with the new, and you’ll have a powerhouse program that’s both nostalgic and cutting‑edge. Keep crushing it!