Overview
Rotation is how your hips and shoulders turn back and through. Power comes from turning your body, not just swinging your arms. Good rotation lets you create speed without forcing it.
Go deeper — the advanced explanation
Rotation quality is about both range and sequence: a full shoulder turn over more stable hips builds coil (separation), and the downswing unwinds hips-first, then torso, then arms. Stalled hips or an arms-dominant motion both leak speed and push the club off plane.
Why it matters
Rotation is the biggest engine of speed available to most players, and the order it unwinds in controls both power and path. Improve rotation and you gain distance without swinging harder.
How SwingVantage detects this
SwingVantage estimates shoulder and hip turn ranges from video and infers the unwinding order from how the body moves in transition. Ranges are visual estimates unless paired with sensor data.
Confidence: Estimated from video
Turn amounts and sequence are inferred from 2D video, so they are estimated. A down-the-line and a face-on clip together give the best read.
What good looks like — and what doesn't
Good pattern
A full shoulder turn against more stable hips going back, then a downswing that unwinds from the ground up — hips, torso, arms, club.
Common poor patterns
- Arms-only swing with little body turn
- Hips that stall and stop rotating through impact
- Hips and shoulders turning together with no separation
- Over-rotating and losing posture
Causes, what you feel, and the result
Common causes
- Trying to generate power with the arms
- Mobility limits in the hips or thoracic spine
- Poor sequencing — upper body starting the downswing
- No stable lower-body base
What you may feel
- The swing feels "all arms"
- You feel blocked or stuck at impact
- Power feels forced rather than free
What the result may look like
- Stalled rotation: blocks, flips, and lost speed
- Good rotation: more speed and a more reliable path
Check it yourself
Cross-arm turn
Cross your arms on your chest and make a turn. Feel a fuller shoulder turn over quieter hips — that is the coil you want.
Lead-hip clearance
On slow swings, feel your lead hip rotating open through impact rather than sliding or stalling.
Video upload tips for an accurate read
- Film both face-on and down the line if possible.
- Fitted clothing helps the body lines read clearly.
Drills
Cross-Arm Coil
beginnerGoal: Build separation (shoulders over hips)
How: Arms crossed on chest, turn back feeling shoulders out-turn the hips, then unwind hips-first. No club.
Feel: Stretch between ribcage and belt going back
Lead-Leg Brace
advancedGoal: Stop the hip stall
How: Make swings focusing on posting into a firm lead leg so the hips can rotate fully open through contact.
Feel: Rotating against a braced front leg
Your practice plan
- 1.Day 1–3: Cross-Arm Coil reps.
- 2.Day 4–6: Lead-Leg Brace into soft shots.
- 3.Day 7: Retest and compare speed and impact feel.
Progression ladder (beginner → advanced)
- 1.Feel separation with no club
- 2.Add it to slow swings
- 3.Keep the sequence at speed
- 4.Trust it in play
FAQs
What is separation in the swing?
Separation (or "X-factor") is the difference between your shoulder turn and hip turn at the top. More separation stores coil you can release for speed, as long as the downswing unwinds hips-first.
Why do my hips stall through impact?
Often it is a weak or soft lead leg, poor sequencing, or simply never feeling the lead hip clear. Posting into a firm lead leg lets the hips keep rotating instead of stopping.
Keep going
Related concepts
Related data points
Related swing faults
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SwingVantage explanations are educational, not medical advice. Video-based reads are labeled by confidence; treat estimated and inferred findings as starting points, not measurements. Last reviewed 2026-06-08.