Did you know that training each muscle group twice per week can lead to up to 38% more muscle growth compared to once-weekly training? That’s what makes upper/lower splits so incredibly effective! I’ve been programming strength routines for over 15 years, and I’ve consistently seen better results with properly designed upper/lower splits than almost any other training approach. Upper/lower splits have exploded in popularity over the past few years, and for good reason. They provide the perfect balance between training stimulus and recovery that so many programs miss. Back when I first started lifting, I was doing the classic “chest…