Core strength and balance form the foundation of a powerful, repeatable golf swing. The Rotary Swing relies on the core to generate power and coordinate movement — rather than depending on the hands, arms, shoulders, and smaller muscle groups that fatigue quickly and introduce inconsistency.
When we refer to the core, we mean the area from the hips up through the abdominal region. This zone is the body's center of gravity, and many of the largest, most powerful muscles converge here — inserting into the skeletal structure through the hips and the base of the spine.
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Related: Golf swing balance — the G4 gate most amateurs fail →

Lie with your feet flat on the floor and your knees raised
Rapid core rotation is the primary engine of power in the golf swing, so this area of your body must be strong enough to support and control the fast movement of every other segment through the entire swing sequence.
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Strengthen Your Core
The following bridge exercise will build core strength while simultaneously revealing any weaknesses or muscular imbalances that need correction.

Engage your glutes to lift your hips
Use an exercise mat or carpeted floor. Lie on your back with your feet flat on the ground and your knees bent. Keep your arms down at your sides for stability.
Now drive your hips upward as high as possible. You should feel your glutes and lower back engaging immediately to support your elevated hips — and you'll maintain this position throughout the entire exercise.

Lift one leg, keeping your hips high and your hands down by your sides
With your hips elevated and hands at your sides, lift one leg straight out and hold for five seconds. Pay close attention to your hip level as you do this — both hips should remain perfectly level without dipping down on the unsupported side.
Identify Problem Areas
If your hips drop when you lift one or both legs, you've identified a specific weakness that needs targeted work. Most golfers can maintain level hips easily with both feet on the ground, but the moment one leg lifts, the unsupported side sags — exposing a muscular imbalance between left and right.
The key is keeping your hips elevated throughout the entire movement. Hold each leg straight for five seconds, slowly lower it — without letting your hips drop — then immediately lift the opposite leg. Complete three sets of 10 repetitions on each side.

If your hips dip down when lifting the leg, it shows you need to improve your core strength
Lift, hold five seconds, lower with control, switch sides. Perform this exercise daily to systematically build core strength and correct any side-to-side imbalances in your body.
Most people discover one side is noticeably stronger than the other. The bridge is one of the most effective exercises for balancing that asymmetry while simultaneously building the core strength you need for a more powerful, stable golf swing. For a detailed breakdown of how your swing mechanics currently measure up, try a free AI swing analysis. To practice with real-time coaching, check out a free AI golf lesson.
How to Do the Golf Bridge Exercise
Build the glute and core strength needed to power and stabilize the golf swing using the bridge exercise progression.
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1
Set Up in the Starting Position
Lie on your back with knees bent at 90 degrees and feet flat on the floor hip-width apart. Place your arms at your sides with palms down. Your spine should be in a neutral position not arched or flattened.
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2
Engage Your Glutes Before Lifting
Consciously squeeze your glutes before raising your hips. This activates the correct muscles and protects your lower back from initiating the movement incorrectly.
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3
Lift to the Bridge Position
Push through your heels and raise your hips until your body forms a straight line from knees to shoulders. Hold the top position 2 seconds. Your weight should be on your shoulders and heels not your neck.
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4
Progress to the Single-Leg Bridge
Once you can complete 3 sets of 15 standard bridges with good form, extend one leg straight. This forces the standing-leg glute to work in isolation directly mimicking the load-side demands of the golf downswing.
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5
Build Swing Power with GOATY
After 3 weeks of consistent bridge training, open GOATY live lesson at rotaryswing.com/goaty/landing/goat_drill_video and take full swings. Stronger glutes directly improve your ENGINE score measured in real time with voice coaching on every rep.
Watch part 2 now to see how you're moving your body in the opposite direction of the pros!