Swaying, Sliding, or Losing Posture? This 30-Second Balance Test Predicts Your Swing Fault

You've heard it from your playing partners, your pro, maybe even a launch monitor: you're swaying off the ball, sliding through impact, or standing up out of your posture. You know what you're doing wrong. The frustrating part is that no matter how many swing thoughts you stack up, it keeps happening.

Here's the thing most golfers never hear: those faults usually aren't swing problems. They're balance problems wearing a swing-flaw costume.

Your golf swing is a single-leg test at full speed

Think about what the swing actually asks of each leg. In the backswing, most of your weight loads into the trail hip — and that hip has to control the turn, not just absorb it. Then everything shifts hard into the lead leg, which has to catch that force, stabilize, and become the post your whole body rotates around.

Each leg gets its own job. Each job is essentially one-legged. So if you can't control your body over one leg standing still, you definitely can't do it at swing speed — and your body knows it. It will find a workaround, and that workaround is your swing fault:

• Can't control the trail hip? You sway — sliding sideways off the ball instead of turning into the hip. Less coil, less stored energy, less distance.
• Can't stabilize the lead leg? You slide through impact, hang back on the trail side, or thrust your hips toward the ball (early extension) as your body bails out of a position it can't hold.

There's a distance cost too. Clubhead speed comes from pushing against the ground, and your brain quietly throttles down force on a leg it doesn't trust. Better balance isn't just cleaner contact — it's free speed.

One honest note: every fault can have more than one cause. Tight hips, a stiff mid-back, and weak glutes all show up in these patterns too. But poor single-leg control is one of the most common drivers we see — and it's the easiest one to test yourself.

How to test yourself (30 seconds per leg)

In the clinic we measure this precisely with the Functional Movement Systems Motor Control Screen — a reach test on a measuring beam that puts a hard number on each leg and exposes side-to-side differences. At home, you can get a useful first look with nothing but a timer:

1. Stand on one leg, hands on your hips, other foot off the ground (don't let it touch or brace against your standing leg).
2. Hold steady for 25 seconds with your eyes open. Wobbling is fine; touching down, hopping, or flailing the arms is a fail.
3. If that's easy, repeat with eyes closed and try to hold 10 seconds.
4. Test both legs — and pay attention to the difference between them.

What you're looking for isn't just pass/fail. It's asymmetry. If your lead leg is noticeably shakier than your trail leg (or vice versa), you've likely found the body limitation behind your fault — and the reason swing cues alone haven't fixed it. Your pro can't coach your body into a position it can't physically control.

How we fix it

Hands-on treatment — adjustments and soft-tissue work — gets the hips moving and calms down what's tight, and that's the fast part. But it's the start, not the finish. Lasting change comes from retraining the control and strength that let the fault build up in the first place. That's the corrective work you do between visits, and it follows a simple progression: free up the hips, wake up the stabilizers, then load the pattern until your body trusts it.

The drills, in order

1. 90/90 hip switches (mobilize) — Sit on the floor with one leg bent 90 degrees in front of you and the other bent 90 degrees behind. Sit tall and rotate your knees side to side, switching the front and back leg without using your hands. Slow and controlled, 8–10 switches. Balance lives in the hips — you can't stabilize a joint that can't move.
2. Single-leg glute bridge (activate) — Lie on your back, knees bent. Lift one foot off the floor and drive through the other heel to bridge your hips up. Keep your pelvis level — if one side sags, that's the weakness talking. 2 sets of 10 per side. This wakes up the glute that's supposed to be steering each hip.
3. Lateral band walks (load it — side-to-side control) — Loop a light band around your legs just above the knees, sit into a quarter squat, and take slow sideways steps, keeping tension on the band and your knees tracking over your toes. 10 steps each direction, 2 rounds. This trains the hip to resist exactly the sideways drift that becomes a sway or slide.
4. Single-leg Romanian deadlift (load it — full pattern) — Stand on one leg with a slight knee bend, hinge at the hip and reach your hands toward the floor while the free leg extends behind you, then return to standing without touching down. Bodyweight first; add a dumbbell when it's smooth. 8 per side. This is single-leg balance under load — the closest gym move to what your swing demands.
5. Step-change drill (groove it into the swing) — Start with your feet together, club out in front of you. Swing the club back, and as it passes your feet, step toward the target with your lead foot, then finish the swing. The club is still going back while your weight is already moving forward — that's you learning to shift into the lead leg and trust it, slow and deliberate. This is a feel drill, not a power drill. 10 easy swings.

Spend 10 minutes on these most days and retest your single-leg balance in three or four weeks. When the wobbly side catches up, the sway and slide usually start cleaning themselves up — often without a single new swing thought.

When to get it looked at

If your balance test shows a clear side-to-side difference, if the drills feel impossible on one leg, or if you've been grinding on the same fault for months with no progress, it's time to find out exactly which limitation is driving it — mobility, stability, or motor control each get fixed differently, and guessing wastes your season. Fort Worth golf is a year-round game; you don't have an offseason to burn.

Dr. Jeremy Taylor, DC

Sports Chiropractor · TPI Medical 3 Certified

Dr. Taylor is a TPI-certified sports chiropractor at Taylor Made Integrative Therapy in Fort Worth, TX. He helps golfers, athletes, and active adults move better, feel better, and perform at their best — by fixing the movement issues underneath the pain. More about Dr. Taylor →