Stand tall with a loaded barbell across your upper back. Step one foot backward into a rear lunge while keeping your chest up and core engaged. Lower your body until your front thigh is about parallel to the floor and your back knee nears the ground. Push through your front heel to return to the starting position. Repeat on the opposite side while maintaining balance and proper alignment throughout the movement.
Log your barbell rear lunge ii sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.