Upper Legs Exercise · Barbell
Barbell Stiff Leg Good Morning
Also known as: Bb Stiff Leg Good Morning
- Category
- Upper Legs
- Equipment
- Barbell
- Target
- Glutes
Biomechanical cues verified by the PlanWorkouts Science Review Board under CSCS editorial oversight; see our editorial standards.
The Barbell Stiff Leg Good Morning is a compound upper legs movement designed to train the Glutes with direct engagement of the Lower Back.
Posterior-chain dominant movement in the sagittal plane. High torque at the hip joint requiring forceful extension by glutes and hamstrings with static lumbar spine stabilization. Executing this with strict form maximizes muscle fiber recruitment while protecting joint structures.
Quick Exercise Facts
Target Muscle Activation
The barbell stiff leg good morning combines the locked-knee hamstring stretch of a stiff leg deadlift with the hip hinge pattern of a good morning, loading the hamstrings and glutes through a long range with the bar on the back instead of in the hands. It's a demanding hamstring builder that requires solid hip hinge mechanics before adding real weight. Keep a slight bend in the knees and stop the descent once the hamstrings are fully stretched rather than rounding the lower back to go further.
How to Do the Barbell Stiff Leg Good Morning
- Stand with your feet shoulder-width apart and a slight bend in your knees.
- Rest the barbell across your upper back on your traps.
- With your spine held straight, hinge forward from the hips by pushing your glutes backward.
- Lower your torso until it's roughly parallel to the floor and you feel a stretch through your hamstrings.
- Drive your hips forward using your glutes and hamstrings to return to standing.
- Repeat for your desired repetitions, keeping constant tension on the working muscle throughout.
Recommended Sets & Reps by Training Goal
70–80% 1RM · 90–120s rest
85%+ 1RM · 2–3 min rest (Calc 1RM)
50–60% 1RM · 45–60s rest
Biomechanical & Joint Load Cues
Posterior-chain dominant movement in the sagittal plane. High torque at the hip joint requiring forceful extension by glutes and hamstrings with static lumbar spine stabilization.
Common Mechanical Mistakes & Form Errors to Avoid
- Lumbar Flexion (Rounding Lower Back): Rounding the lower back under heavy load shifts compressive forces into dangerous anterior shear on the intervertebral discs.
- Bar Drifting Forward: Allowing the weight to drift away from the shins creates a longer external moment arm, drastically increasing torque on the spinal erectors.
- Hyperextending at Lockout: Leaning back excessively at the top of the movement pinches lumbar facet joints rather than engaging the gluteal muscles.
Proper Breathing Patterns & Core Engagement
Inhale into diaphragm and brace core prior to pulling/hinging. Maintain rigid spinal alignment; exhale once hips lock out at standing height.
Add the Barbell Stiff Leg Good Morning to Your Custom Workout Routine
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Injury Modification & Joint Safety
If managing acute lumbar disc irritation or facet joint pain, prioritize neutral-spine trap bar deadlifts or single-leg Romanian deadlifts to minimize axial shear. If joint irritation persists, immediately stop and substitute this movement with another exercise from the Upper Legs exercises category.
Muscles Worked
The Barbell Stiff Leg Good Morning primarily targets the Glutes, with Hamstrings as the primary synergist muscle group, along with the Lower Back.
More Upper Legs Exercises
All Fours Squad Stretch
Arms Apart Circular Toe Touch (male)
Assisted Lying Glutes Stretch
Assisted Lying Gluteus And Piriformis Stretch
Assisted Prone Hamstring
Assisted Prone Lying Quads Stretch
More Glutes Exercises
Band Bent-Over Hip Extension
Band Hip Lift
Band Lying Hip Internal Rotation
Band Pull Through
Band Seated Hip Internal Rotation
Band Squat
Equipment Alternatives
Don't have barbell? These target the same glutes with different equipment.
FAQ
- What muscles does the Barbell Stiff Leg Good Morning work?
- The Barbell Stiff Leg Good Morning primarily targets the glutes as the primary agonist. Synergist assistance is provided by the hamstrings along with the lower back. Maintaining strict biomechanical alignment ensures maximal tension remains focused on the intended muscle fibers rather than shifting to surrounding stabilizer joints.
- What equipment do I need for the Barbell Stiff Leg Good Morning?
- The Barbell Stiff Leg Good Morning is performed using a barbell. Ensure all equipment is securely positioned with collars or safety pins locked before loading working sets. If you train in a home gym or minimal setup, explore our equipment-free and resistance band alternatives below.
- What is the most common form mistake on the Barbell Stiff Leg Good Morning?
- The most frequent error is lumbar flexion (rounding lower back): Rounding the lower back under heavy load shifts compressive forces into dangerous anterior shear on the intervertebral discs.. Controlling the 2 to 3-second eccentric lowering phase ensures maximal hypertrophic stimulus while shielding connective tissue.
- How many sets and reps should I perform on the Barbell Stiff Leg Good Morning?
- For muscle hypertrophy and size, aim for 3 to 4 working sets of 8 to 12 repetitions at 70% to 80% of your 1RM with 90 to 120 seconds rest. For absolute strength development, prioritize 4 to 5 sets of 3 to 6 heavier reps with 2 to 3 minutes rest.
- What's a good alternative to the Barbell Stiff Leg Good Morning?
- If you don't have access to a barbell, the Basic Toe Touch (male) targets the same glutes using body weight instead. This alternative replicates the same joint angle and movement plane while allowing you to train effectively with different available gear. You can also substitute it seamlessly in our free Workout Plan Builder.