Golf Tutorials

How to Use Big Muscles in a Golf Swing

By Spencer Lanoue
July 24, 2025

Most golfers trying to hit the ball farther make the same mistake: they swing harder with their arms. While that feels powerful, true, repeatable distance comes from your body's engine - the large, strong muscles in your core, back, and lower body. Leaning on your arms is a recipe for inconsistency, topped shots, and a frustrating loss of power. This guide will walk you through, step-by-step, how to stop an armsy swing and start using your big muscles to generate effortless power and a more reliable GOLF swing.

Why Your Big Muscles Matter More Than Your Arms

Think of your golf swing less like a baseball bat swing and more like a medieval catapult. The real power behind the catapult wasn't the swinging arm itself, it was the massive counterweight that created the force. In your golf swing, your arms and the club are the catapult's arm, but your rotating torso, hips, and glutes are the counterweight. They are the true source of your power.

When you start your swing by simply picking the club up with your hands and arms, you’re trying to generate speed from a weak source. This forces you to time the downswing perfectly to have any chance of hitting the ball squarely. More often than not, this leads to an "over the top" move, where the club swings on a steep, outside-to-in path, causing slices and pulls.

A body-driven swing, however, is a sequence of motion. It creates a massive amount of torque by "coiling" your upper body against your lower body and then unwinding in a specific order. This is a far more efficient and powerful way to transfer energy to the golf ball. Your arms become simple connectors, transmitting the force generated by your body's rotation. The result? A swing that feels smoother, almost slower, yet produces faster clubhead speed and straighter shots.

The Engine Room: Your Setup and Posture

You can't use your big muscles if you aren't in a position to fire them. A proper, athletic setup is the foundation that primes your body's engine. It places you in a balanced position, ready to rotate powerfully. Most amateur golfers stand too upright, which completely disengages their lower body and forces them to use their arms.

The Athletic Tilt

The first step is to get out of a "chair-sitting" posture. Stand with your feet about shoulder-width apart and feel your weight balanced. Now, instead of bending at your waist, I want you to bend from your hips. Push your butt back as if you were trying to touch a wall behind you. Your back should remain relatively straight, not hunched or curved. This simple move instantly engages your glutes and hamstrings - the powerhouse muscles of your lower body.

Finding Your Balance

As you tilt from your hips, let your arms hang straight down naturally from your shoulders. This is where your hands should hold the club. If you have to reach for the ball, you’re too far away. If your hands feel jammed into your body, you’re too close. For a standard iron shot, your weight should be balanced 50/50 between your feet and centered between the balls of your feet and your heels. This stable base is your platform for rotation, without it, you'll sway off the ball and lose all your power.

Winding the Spring: The Backswing Turn

The backswing is not about lifting the club, it’s about coiling your body to store energy. This is where you stretch your core muscles like a rubber band, creating tension that will be unleashed in the downswing. The key here is to initiate the movement with your big muscles, not your small ones.

Initiating with a "One-Piece" Takeaway

From your athletic setup, start your backswing by turning your shoulders, chest, and hips together as a single unit. Avoid the temptation to just pick the club up with your hands. A great mental image is to imagine a triangle formed by your shoulders and arms at address. Your goal in the first part of the backswing is to simply turn that entire triangle away from the ball, keeping its shape intact. This ensures your body is leading the way from the very start.

The Shoulder Turn: Creating Torque

As you continue your backswing, your primary focus should be on rotating your shoulders. A good checkpoint is to turn until your lead shoulder (your left shoulder for a right-handed player) is tucked under your chin. For most golfers with average flexibility, this will result in about a 90-degree shoulder turn. You should feel a stretch across your back and obliques - that’s stored power!

During this turn, it’s vital to maintain your posture. Imagine you are rotating inside a barrel or a cylinder. You want to turn without swaying side-to-side. Swaying moves your center of gravity, kills your rotation, and disengages the very muscles you’re trying to use.

The Role of the Hips

Your hips should turn in the backswing, too, but not as much as your shoulders. Aim for about a 45-degree hip turn. This separation between your flexed upper body and your more stable lower body is what professionals call the "X-Factor." This difference in rotation is what stretches your core and creates massive torque - it’s the coil you need for a powerful downswing.

Unleashing the Power: The Downswing Sequence

So you've coiled the spring. Now, how do you correctly unleash that power? The answer lies in the kinematic sequence. That sounds complicated, but it just means your body parts should fire in a specific order to create maximum speed. It feels different, but it’s the secret to effortless power.

Step 1: The Weight Shift (The 'Bump')

The first move from the top of your backswing should NOT be with your hands or arms. The powerful move that starts the downswing is a small, lateral shift of your hips towards the target. It's not a big lunge, just a feeling of your weight moving onto your front foot. This move does two things: it drops the club into the correct "slot" on the inside and sets the stage for a powerful rotation.

Step 2: The Unwind (The 'Turn')

Once you've made that slight "bump" to your front side, it’s time to unwind. And the unwinding happens from the ground up.

  • Your hips lead the rotation. Think of your belt buckle turning to face the target.
  • Your chest and torso follow the hips.
  • Your shoulders follow your torso.
  • Finally, your arms and the club are pulled through by this powerful body rotation.

Imagine cracking a whip. The powerful wave starts at the handle and accelerates to the tip. Your hips are the handle, the clubhead is the tip. Starting with your arms is like trying to crack a whip by flicking the tip first - it just doesn't work.

Common Mistake to Avoid: Casting

The dreaded "over-the-top" move, also known as "casting," is almost always caused by starting the downswing with the hands and shoulders. When your brain screams "hit the ball hard," your instinct is to throw your hands at it from the top. Following the correct ground-up sequence naturally cures this fault by keeping your arms passive for longer, allowing them to drop into the slot and deliver the club from the inside.

Symmetrical and a Balanced Finish

Your finish position isn't just about looking good for the camera, it's the ultimate proof that you used your body correctly. If you've relied on your arms, you'll likely finsish feel off-balance and herky-jerky. A body-driven swing, however, flows through impact to a stable and poised finish.

Full Rotation to the Target

Let your body’s momentum and your unwinding core carry you all the way through the shot. Don't stop at impact. As you swing through, allow your hips and chest to fully rotate until they are facing the target. Your back foot should come up onto its toe naturally, with almost all of your weight (think 90% or more) supported by your front leg. You should feel tall and relaxed.

If you can hold your finish in a balanced "superhero pose" until your ball lands, congratulations. You've successfully transferred energy from your body, through the ball, and into a full, committed finish. If you find yourself falling backward or stumbling, it's a clear sign that you reverted to using your arms for power instead of your body's ahtletic rotation,

Final Thoughts

Switching from an arm-dominant swing to a body-driven one requires patience. It's a new feeling, a new sequence, but it unlocks a level of consistency and power you can't get any other way. By focusing on an athletic setup, a full rotational backswing, and a ground-up downswing, you move from "hitting" at the ball to "swinging" through it with athletic grace.

Learning this new body sequence can sometimes feel strange, and it's easy to wonder if you're doing it right. We designed Caddie AI to be your personal coach in those moments. If you’re at the range struggling with a move like the "hip bump" you can ask us for a specific drill right then and there. Even better, on the course, when you face a challenging shot that might tempt you back into old habits, you can take a picture of your lie and we'll provide smart, objective strategy to help you make the right play, instead of forcing a swing and falling back into those weak, armsy patterns.

Spencer has been playing golf since he was a kid and has spent a lifetime chasing improvement. With over a decade of experience building successful tech products, he combined his love for golf and startups to create Caddie AI - the world's best AI golf app. Giving everyone an expert level coach in your pocket, available 24/7. His mission is simple: make world-class golf advice accessible to everyone, anytime.

Other posts you might like

How to Throw a Golf Tournament Fundraiser

Thinking about hosting a golf tournament fundraiser is the first swing, executing it successfully is what gets the ball in the hole. This guide will walk you through the entire process, step-by-step, from laying the initial groundwork months in advance to watching your happy golfers tee off. We’ll cover everything from securing sponsors and setting your budget to planning the on-course fun that makes an event unforgettable.

Read more
card link

What Is a Golf Handicap?

A golf handicap does more than just give you bragging rights (or a reason to demand strokes from your friends) - it’s the game’s great equalizer and the single best way to track your improvement. This guide breaks down what a handicap is, how the supportive math behind a handicap index a is, and exactly how you can get one for yourself. We’ll look at everything from Course Rating to Adjusted Gross Score, helping you feel confident both on the course and in the clubhouse.

Read more
card link

What Is the Compression of a Pinnacle Rush Golf Ball?

The compression of a Pinnacle Rush golf ball is one of its most defining features, engineered specifically to help a huge swath of golfers get more distance and enjoyment from their game. We'll break down exactly what its low compression means, who it's for, and how you can use that knowledge to shoot lower scores.

Read more
card link

What Spikes Fit Puma Golf Shoes?

Figuring out which spikes go into your new (or old) pair of Puma golf shoes can feel like a puzzle, but it’s much simpler than you think. The key isn't the brand of the shoe, but the type of receptacle system they use. This guide will walk you through exactly how to identify your Puma's spike system, choose the perfect replacements for your game, and change them out like a pro.

Read more
card link

How to Use the Golf Genius App

The Golf Genius app is one of the best tools for managing and participating in competitive golf events, but figuring it out for the first time can feel like reading a new set of greens. This guide cuts through the confusion and shows you exactly how to use the app as a player. We’ll cover everything from logging into your tournament and entering scores to checking the live leaderboard so you can enjoy the competition without any tech headaches.

Read more
card link

How to Not Embarrass Yourself While Golfing

Walking onto the first tee with sweaty palms, worried you’ll be a good partner to paly wtih...or even asked back again ...We’ve all been there - trust me! The real trick of feeling confortable... is about how you handle you’re ready to plsy. THIS guide explains the simple rules of the rode to show you hnow t play golf while staying calm relaxed and focused... an having much morse fun while you,',re aat it? You'll also play with confidence a dn make fiendsa while you're at i

Read more
card link
Rating

Instant advice to help you golf like a pro

Just ask a question or share a photo and Caddie gives personalized guidance for every shot - anytime, anywhere.

Get started for free
Image Descrptions