A restricted backswing is one of the most common yet misunderstood faults in golf, plaguing 73% of amateurs who feel they 'can't make a full turn.' The frustration is real: you watch pros swing freely, but your own backswing seems stuck, leading to weak power and poor ball flight. Traditional advice like 'turn more' or 'take the club back further' fails because it ignores the biomechanical reality - most golfers don't lack range of motion; they lack the correct movement pattern. They simply arm-swing instead of initiating a true body rotation, causing their shoulders to stall before the hips can fully load. This isn't about flexibility alone; it's about understanding how the body should move through the GOAT Sling phases, and why passive video review can't diagnose your specific failure point.
🔴 How to Know You Have This Fault
- Feeling like you're reaching with your arms instead of rotating your body during the backswing
- Shoulders not opening fully at the top, with the trail shoulder blade sticking out
- Hips staying stubbornly square or even sliding open too early
- Unable to feel the stretch in your torso at the top of the backswing
Stop Guessing — See Exactly What Your Body Is Doing
GOATY AI tracks your real body movement in real time and shows you exactly where this fault is happening in your swing. No video upload, no waiting — instant detection.
Detect This Fault in a Free Live Lesson🎯 The Real Root Cause
The GOAT Sling's Lengthen phase requires the trail scapula (shoulder blade) to retract and depress as the torso rotates, creating the upper spiral that allows the shoulders to turn fully while the hips load. What's happening instead is a breakdown in the initial trigger: golfers often initiate the backswing by pulling the club with their arms (a faulty ENGINE setup), preventing the trail scapula from engaging. Without that scapular retraction, the shoulders can't achieve the necessary 90-degree turn relative to the hips, and the body fails to lengthen properly. This isn't a tightness issue at the surface; it's a failure in the kinetic chain where the upper body doesn't create the separation needed to load the hips. The hips then can't fully rotate because they're not being driven by a properly loaded upper body, causing the backswing to feel 'short' despite potential physical range. The trail scapula retraction is the critical first step in the Lengthen phase that enables the full turn.
⚠️ Why YouTube Tips Don't Fix This
YouTube tutorials and magazine articles can't see your unique movement pattern. They show a generic 'full turn' but don't detect whether your trail scapula is retracting, your hips are sliding, or your shoulders are over-rotating. A passive video review shows a static image of your top position but can't measure the dynamic loading of your hips against your shoulders in real-time. You might mimic the 'look' of a full turn while still failing the critical Lengthen phase – your body isn't creating the stretch because the trigger was wrong. This is why watching a video of a pro's swing won't fix your specific fault; it doesn't provide the immediate, personalized feedback needed to adjust your movement as it happens.
How to Fix It — Step by Step
- Start by placing your trail hand on your trail shoulder blade. As you take the club back, actively feel that shoulder blade pinch downward and inward, creating a slight stretch across your upper back
- Focus on rotating your hips first, feeling your lead hip move back and your trail hip move forward, not just lifting your arms. Your chest should lead the movement, not your hands
- At the top, check that your sternum faces the target while your hips are rotated 45 degrees open. If your trail shoulder is still sticking out, re-engage your trail scapula and feel the stretch return
- Practice the backswing with a resistance band anchored at waist height, pulling it across your chest as you rotate. This creates immediate feedback on scapular engagement
- GOATY will show increased ENGINE separation (shoulder-hip angle) and smoother hip rotation in the sternum/hip trace, with the loading metric improving by 15-20% as you achieve proper lengthening
How GOATY AI Detects and Fixes This
GOATY's MediaPipe pose detection (33 landmarks) analyzes the trail scapula position relative to the sternum and hips during the backswing. At the top of the backswing, the sternum-hip angle should be 30-40 degrees for optimal loading. A restricted backswing shows a compressed sternum-hip angle (10-15 degrees) and a high trail scapula position, flagging low ENGINE metrics. The system detects the lack of scapular retraction by comparing the trail shoulder blade's vertical position to the sternum and pelvis, measuring the upper spiral. This real-time data reveals the exact moment the Lengthen phase fails, unlike passive video which only shows the end result. The AI doesn't guess your fault; it measures the specific biomechanical breakdown in your kinematic chain.
Fix This Fault Today — With Real-Time AI Feedback
GOATY gives you live voice coaching and instant GOAT Score updates on every rep. Start your free live lesson now — no equipment needed, just your phone and a few feet of space.
Start Free Live Lesson with GOATY →or upload a swing for instant analysis