Good Morning

The good morning is a barbell hip hinge that places exceptional demand on the entire posterior chain — hamstrings, glutes, and spinal erectors work together to control the forward bow and drive you back to standing. What makes this exercise biomechanically distinct from the Romanian deadlift is bar placement: with the barbell on your back instead of in your hands, the moment arm at the hip is longer relative to your center of mass, which dramatically increases the demand on your spinal erectors.

The hamstrings function as hip extensors during good mornings, working eccentrically as you bow forward (controlling the descent) and concentrically as you drive your hips through to stand. Because the knees stay slightly bent and relatively fixed, the hamstrings are stretched primarily at the hip — this preferentially loads the proximal hamstring fibers near the glute fold. Research by Dr. Brad Schoenfeld on regional hypertrophy suggests that hip-dominant exercises like good mornings develop the upper hamstrings more effectively than knee flexion exercises like leg curls.

The erector spinae — the long muscles running along your spine — work isometrically throughout to maintain spinal position. This is one of the primary benefits of good mornings: they build the back strength needed to maintain posture during heavy squats and deadlifts. Powerlifters have used good mornings as a squat accessory for decades specifically because they strengthen the exact position where squatters fail — the forward lean out of the hole. Greg Nuckols has documented how good morning strength correlates strongly with squat performance, particularly for lifters who tend to tip forward.

The gluteus maximus fires as a powerful hip extensor, particularly through the bottom portion of the movement where hip flexion is greatest. As you approach the top, the glutes squeeze to complete the hip extension and lock out the hips. Dr. Stuart McGill's spinal biomechanics research emphasizes that the hip hinge pattern — when performed with proper bracing — is one of the safest ways to train the posterior chain, provided the spine remains neutral.

Core stability is paramount. Your abdominals and obliques brace isometrically to prevent spinal flexion under the barbell load. This bracing demand is what makes good mornings both valuable and risky — with proper bracing, they build bulletproof spinal stability. With poor bracing, the spinal flexion under load can be dangerous. This is why starting light and mastering the pattern is non-negotiable.

In MySetPlan programs, good mornings appear as a squat or deadlift accessory exercise, typically programmed 1-2 times per week with moderate loads (RPE 6-8). They are assigned more frequently to intermediate and advanced lifters who have demonstrated competent hip hinge mechanics. The exercise pairs well with leg curls in the same session for complete hamstring coverage — good mornings for hip extension, curls for knee flexion.