Set the bar on a Smith machine at shoulder height and stand under it with the bar resting across your upper back. Step one foot backward into a rear lunge, lowering your body until the front thigh is about parallel to the floor and the back knee nears the ground. Press through the front heel to return to the starting position, then repeat on the opposite side. Maintain an upright torso and controlled movement throughout to strengthen lower‑body stability and muscle balance.
Log your smith rear lunge version 2 sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.