How to Do It
- Rack a barbell at mid-chest height. Step under the bar and set it securely across your upper back.
- Grip the bar tightly, unrack, step back with a two-step cadence, and set feet shoulder-width apart.
- Inhale deeply, brace your core 360 degrees, and push your hips straight backward with soft knees.
- Hinge forward until your torso reaches 15 to 30 degrees above parallel, feeling a deep hamstring stretch.
- Drive your hips forward and contract your glutes to return to a tall standing position.
Common Mistakes
- Rounding the lumbar or thoracic spine during the hinge, transferring load onto spinal ligaments.
- Squatting the movement by bending the knees forward rather than shifting the pelvis rearward.
- Looking up at the ceiling or jutting the neck upward, distorting neutral cervical spine alignment.
- Overloading the barbell with excessive weight before mastering the hip hinge pattern.
The biomechanics and value of the barbell good morning
The barbell good morning is one of the most effective compound hip hinge exercises for developing posterior chain strength, hamstring length-tension capacity, and spinal erector isometric endurance.[^schoenfeld] By positioning the resistance on the upper back rather than holding it in the hands, the exercise lengthens the moment arm between the load and the hips.[^acsm][1][2][3]
This unique loading profile demands exceptional core bracing and pelvic control, making the good morning an invaluable builder for heavy squats, deadlifts, and athletic sprinting mechanics.[1][2][3]
Muscles worked
| Muscle Group | Role | Function During Movement |
|---|---|---|
| Hamstrings (biceps femoris, semitendinosus, semimembranosus) | Primary mover | Undergoes eccentric lengthening during the hinge and contracts to extend the hips. |
| Gluteus maximus | Primary mover | Extends the pelvis forward into the upright standing position. |
| Erector spinae (iliocostalis, longissimus, spinalis) | Dynamic stabilizers | Isometrically hold the entire vertebral column in rigid, neutral alignment. |
| Adductor magnus | Synergist | Assists in hip extension throughout the ascending phase. |
| Transverse abdominis & obliques | Stabilizers | Generate intra-abdominal pressure to prevent lumbar flexion. |
Step-by-step setup and execution
1. Barbell placement and unrack
- Set the bar in a power rack at mid-chest level.[1][2][3]
- Step under the bar and set it securely across your posterior deltoids or upper traps.[1][2][3]
- Pull your elbows back to create a rigid muscular shelf, brace your abdominals, and step back with a controlled two-step cadence.[1][2][3]
2. The hip hinge initiation
- Set your feet roughly shoulder-width apart with your toes angled slightly outward.[1][2][3]
- Soften your knees (maintain a slight 15-to-20 degree bend) and keep your shins perpendicular to the floor.[1][2][3]
- Inhale deeply into your abdomen, set your 360-degree core brace, and begin pushing your hips straight back toward the wall behind you.[1][2][3]
3. The descent
- Continue sliding your hips backward while your torso hinges forward.[1][2][3]
- Keep your neck neutral by gazing at a point on the floor 6 to 10 feet in front of you.[1][2][3]
- Stop when you feel a maximal stretch in your hamstrings or when your torso reaches near-parallel to the floor, ensuring your lower back remains strictly flat.[1][2][3]
4. The hip drive (concentric phase)
- Squeeze your glutes and push your feet into the floor to drive the hips forward.[1][2][3]
- Return to a tall, upright standing position with glutes fully contracted.[1][2][3]
- Reset your breath and abdominal brace before beginning the next rep.[1][2][3]
Common technique errors and fixes
- Squatting instead of hinging: If your knees travel forward and your hips drop down, you are turning the exercise into a squat. Keep your shins vertical and push your butt back.[1][2][3]
- Spinal flexion: If your lower back rounds, you have exceeded your hamstring flexibility or used too much weight. Reduce the load and hinge only within your neutral spinal range.[1][2][3]
- Neck hyperextension: Looking up into a mirror strains the cervical spine. Keep your eyes down to align your neck with your spine.[1][2][3]
Programming recommendations
- Hypertrophy & posterior chain volume: 3–4 sets of 8–12 repetitions with moderate loads (40–60% of your back squat 1RM). Rest 2 minutes between sets.[1][2][3]
- Placement: Program as a secondary compound movement on Leg or Lower-body days following heavy squats or deadlifts.[1][2][3]
References
- Anaerobic and Muscle Endurance Development: Lifting Guidelines. National Strength and Conditioning Association (2017)Back to claim
- American College of Sports Medicine Position Stand. Resistance Training Prescription for Muscle Function, Hypertrophy, and Physical Performance in Healthy Adults: An Overview of Reviews. Medicine & Science in Sports & Exercise (2026)Back to claim
- Updating ACSM's Recommendations for Exercise Preparticipation Health Screening. Medicine & Science in Sports & Exercise (2015)
- The mechanisms of muscle hypertrophy and their application to resistance training. Sports Medicine (2016)Back to claim
- Muscle hypertrophy and strength gains after resistance training with different volume-matched loads: a systematic review and meta-analysis. Sports Medicine (2021)Back to claim
- The Importance of Muscular Strength: Training Considerations. Sports Medicine (2018)Back to claim
See our exercise methodology for how this evidence is applied and its limits.
Frequently Asked Questions
- Are good mornings dangerous for your lower back?
- When executed with strict hip hinge mechanics, rigid core bracing, and appropriate submaximal loading, good mornings safely build immense spinal erector and posterior-chain resilience.
- How deep should you go on a barbell good morning?
- Hinge as far as your active hamstring flexibility allows while maintaining a perfectly flat, neutral spine—typically when your torso reaches about 15 to 30 degrees above parallel.
- What is the difference between a good morning and a Romanian deadlift?
- Both train the posterior chain through a hip hinge, but the good morning places the load on your upper back (creating a longer resistance moment arm for the spinal erectors), while the RDL places the load in your hands.