This exercise is performed standing with a barbell placed across the upper back while maintaining a slight bend in the knees. The hips are pushed backward as the torso hinges forward, then the body returns to an upright position by engaging the posterior chain.
The good morning is a hinge with the bar on your back instead of in your hands, which makes it one of the best builders of the hamstrings, glutes, and spinal erectors, and one of the least forgiving lifts to rush. Program it as an accessory, not a max-effort lift: 3 to 4 sets of 6 to 10 controlled reps after squats or deadlifts, once a week, is the productive dose for most lifters. Powerlifters lean on it because the position mirrors what happens when a heavy squat tips forward, training exactly the back strength that saves those reps.
Load it far lighter than it feels like you should; something around 25 to 40 percent of your squat is a sensible ceiling for quality reps, and many strong lifters never exceed 60 kg on it. Push the hips back with soft knees until the hamstrings stop the descent, usually with the torso near parallel, and stand up by driving the hips forward. Adding weight faster than technique allows is the one reliable way to make this lift bite.
Performed with a braced neutral spine and modest loads, they strengthen the very structures people worry about. They become risky the same way any hinge does: rounding under a load too heavy to control.
Until your hamstrings reach a firm stretch and the hips cannot travel further back, typically a torso just above parallel. Depth beyond what your hamstring flexibility allows comes from spinal rounding, which is exactly what to avoid.
They train the same muscles from different ends. The RDL loads heavier through the hands and grip, while the good morning puts the lever against the spine and hits the erectors harder per kilogram. Most programs are well served keeping the RDL as the main hinge accessory and rotating good mornings in for variety.
Log your barbell good morning sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.