• Hips on the pad: This converts the exercise into a back extension, significantly reducing hamstring and glute activation. Adjust the GHD so your hips are just off the edge of the pad, allowing for full hip flexion and extension.
• Lower back hyperextension: At the top of the movement, avoid excessively arching your lower back. Focus on squeezing your glutes to bring your body to a straight, neutral line, not beyond.
• Rounding the lower back: When lowering, don't let your spine round excessively. Maintain a relatively neutral spine throughout the movement, hinging primarily at the hips.
• Using momentum: Swinging up and down reduces muscle tension and control. Perform the movement slowly and controllably, especially the lowering phase, to maximize time under tension and muscle engagement.

• Target muscle activation: You should feel a strong contraction primarily in your glutes and hamstrings, particularly at the top of the movement. Your lower back should not feel strained or overly fatigued.
• Hip placement: Your hip joint should be free to move, with your upper thighs/quads resting on the pad. Your hips should not be directly on the pad, as this limits hip range of motion.
• Spine position: Your spine should remain relatively neutral, avoiding excessive arching (hyperextension) at the top or rounding (flexion) at the bottom.
• Controlled movement: Both the lowering and raising phases should be slow and controlled, without relying on momentum or a quick rebound.

• Lower back strain/injury: The most common risk is from excessive hyperextension or rounding of the lumbar spine, which can lead to muscle strains, ligamentous injuries, disc issues, or nerve impingement.
• Hamstring strains: While the GHD Hip Extension is generally safe for hamstrings, improper mechanics, such as going too deep too quickly without adequate hamstring flexibility or warm-up, can contribute to strain.
• Sacroiliac (SI) joint pain: Repetitive improper loading, particularly with spinal rotation or asymmetry during the movement, can irritate the SI joint due to increased stress.

For GHD Hip Extensions, the primary 'weight' is your body weight. If you are struggling to maintain proper form, yes, focus solely on mastering the bodyweight movement first. Avoid adding external weight (like holding a plate) until your bodyweight form is perfect and you can perform several controlled repetitions with excellent technique. If performing bodyweight, and still struggling, it might be an issue of proper GHD machine setup (pad position) or developing a better mind-muscle connection to activate the correct muscles. Adding weight too soon will only exacerbate form issues and significantly increase your risk of injury.

• Practice hip hinging: Stand and practice pushing your hips back, keeping your back straight and a slight bend in your knees, mimicking the hip flexion without a GHD. This helps build the foundational movement pattern and proprioception.
• Glute bridges/hyperextensions (on floor/stability ball): These exercises can help strengthen the glutes and hamstrings in a similar movement pattern, allowing you to develop strength and control before transferring to the GHD.
• Core stability exercises: Strengthening your core (e.g., planks, dead bugs, bird-dog) will help you maintain a neutral spine and prevent unwanted spinal movement during the GHD Hip Extension.
• Video yourself: If possible, record your GHD Hip Extensions and review them. Comparing your video to examples of proper technique can help you identify specific form deviations and areas for improvement.