Hack Squat vs Barbell Squat: Which Is Better for Hypertrophy?

For decades, the barbell squat has been called the king of all exercises. But is it actually overrated for building muscle? And should you still do it when there is, at first glance, a safer and more effective machine alternative? Here is a hack squat vs barbell squat comparison to help you decide which one to include in your training if your goal is maximum hypertrophy.

Key Takeaways

• Barbell squats are not overrated, but they are not required for building big legs.
• Hack squats are usually better for quad hypertrophy.
• Barbell squats are better for overall strength.
• Hack squats are easier to learn and safer if you train to failure.
• Your goal should determine the exercise: Do hack squats for hypertrophy and barbell squats for maximal strength.

Hack Squat vs Barbell Squat – What Is the Difference?

Are Barbell Squats Overrated?

No, barbell squats are not overrated. But they are not for everyone. 

A heavy barbell squat is a compound movement, which means it targets multiple large muscle groups, such as:

• Quads
• Glutes
• Hamstrings
• Core

Most people agree that squats can be extremely effective. The problem comes from the long-standing belief that everyone must perform them if they want bigger legs.

Another reason squats are less popular today is related to longevity and injury risk. Many lifters change their opinion on barbell squats after dealing with issues such as lower back strain or shoulder mobility limitations.

When Should You Do Barbell Squats?

Here are the situations where barbell squats usually make the most sense.

• Powerlifting: If your goal is to compete in the sport or prefer this type of training, barbell squats must be a central part of your training.
• Athletic performance: Many athletes rely on barbell squats to develop lower-body power. The movement trains the hips, legs, and core together, which closely resembles how the body produces force during sprinting, jumping, and changing direction.
• Building maximal strength: If your main goal is lifting the heaviest weight possible, barbell squats are extremely effective for developing maximal strength.
• Limited machine access: If your gym or home gym doesn’t have a hack squat, and you still want to build large legs, then the barbell squat is the next best option.

Can Hack Squats Replace Squats​?

Yes, hack squats can replace barbell squats, especially in situations like these:

• Quad hypertrophy focus: If your main goal is building bigger quads, hack squats can be more effective.
• Lower back issues: If you experience discomfort in the lower back when performing heavy squats, hack squats are a much better alternative.
• Shoulder mobility problems: Barbell squats require enough mobility to hold the bar securely across the upper back. Anyone who is struggling with shoulder stiffness or previous injuries that make holding a barbell challenging, especially with heavier weights, should go with the hack squat. 
• Safer training to failure: Barbell squats require more focus on form, which can be challenging if you are training close to failure.
• Bodybuilding style training: If your goal is to maximize muscle growth rather than, then hack squats fit perfectly into this style of training.

How to do Hack Squat

Here is how to properly do hack squat:

1. Step into the machine and place your shoulders firmly under the pads. Your back should stay flat against the support.
2. Position your feet about shoulder-width apart on the platform, with toes slightly turned outward.
3. Keep your chest up and maintain a neutral spine throughout the movement.
4. Lower the weight by bending your knees and hips, allowing your knees to travel forward while keeping your heels planted.
5. Descend until your thighs are roughly parallel to the platform, or slightly deeper if comfortable.
6. Drive through the middle of your foot and extend your knees to push the sled back up.
7. Stop just before locking your knees completely, then repeat for the next rep.

Benefits of Hack Squat

Hack squats are popular in hypertrophy-focused training. The machine makes it easier to focus on the working muscles rather than balance or coordination.

Since the machine supports your body and guides the movement, many lifters feel more comfortable pushing hard sets without worrying about losing balance.

In addition, the lower back usually experiences less stress during the exercise.

Cons of Hack Squat

One drawback is that they do not build functional strength to the same degree as free-weight exercises. The machine stabilizes the movement, which means fewer supporting muscles need to work to control the load.

Hack squats also involve slightly less overall muscle recruitment compared to barbell squats, particularly in the core and posterior chain. As a result, they may not develop total-body strength as effectively.

How to do Barbell Squat

Here is how to properly do a barbell squat:

1. Place the barbell on the squat rack at about upper chest height. Step under the bar and position it across your upper back, either in a high-bar or low-bar position, depending on your preference.
2. Grip the bar slightly wider than shoulder width and pull your shoulder blades together to create a stable upper back shelf.
3. Stand up to unrack the bar, then take one or two small steps back to clear the rack. Position your feet about shoulder-width apart with toes slightly turned outward.
4. Take a deep breath and brace your core before starting the movement.
5. Lower your body by bending your hips and knees at the same time. Keep your chest up and maintain a neutral spine as you descend.
6. Continue lowering until your thighs reach at least parallel to the floor, or slightly deeper if your mobility allows it.
7. Drive through your mid-foot and extend your hips and knees to stand back up while keeping the bar balanced over your center of gravity.
8. Fully regain control at the top, then repeat the movement for the next rep.

Benefits of Barbell Squat

One of the biggest advantages is the high level of muscle recruitment. The quads, glutes, hamstrings, core, and upper back all contribute to controlling and lifting the bar. This makes the movement extremely effective for building overall lower-body power.

Barbell squats also require significant core stabilization. Your abdominal muscles and lower back must stay braced to support the weight, which strengthens the trunk while you train your legs.

Because of this full-body demand, squats have strong carryover to athletics and strength sports. They are also one of the most reliable exercises for progressively building maximal strength over time.

Cons of Barbell Squat

The movement requires a relatively high level of technical skill. Proper bar placement, bracing, depth control, and balance all need to work together for the lift to be safe and effective.

Barbell squats also place a greater load on the spine and can create more overall fatigue compared to machine-based exercises.

Another challenge is that squats are harder to safely push close to muscular failure. When fatigue builds, maintaining balance and good technique becomes more difficult, which increases the risks.

Which Exercise Builds Bigger Quads?

For most people, the hack squat is going to be more effective for building quads because the path is guided, and it is easier to push sets closer to muscular failure.

Another thing you could notice is the better mind-muscle connection many lifters feel during the movement. Since the machine removes the need for balance and stabilization, it becomes easier to focus on driving through the quads and controlling the entire range of motion.

Is Hack Squat Safer Than Regular Squat?

Hack squats are generally considered safer. This reduces balance demands and often makes the exercise feel safer when training with high intensity.

However, hack squats can still cause problems if they are done with poor form. A common mistake is going deeper than you’re comfortably able to do. This can put extra pressure on the knees.

Another thing you should watch out for is to always keep your heels on the platform. If you lift your heels, the knees and joints end up taking more of the load instead of the quads. This is the incorrect way to perform the exercise, and it can lead to discomfort or even injury. 

FAQ

Is the hack squat easier than the barbell squat?

Yes, many people find the hack squat easier. This does not necessarily relate to the mechanics of the exercise. Movements that require less balance and concentration often feel easier mentally compared to exercises that demand full-body stability.

What is the difference between a hack squat and a squat?

The hack squat is performed on a machine, while the regular squat is typically performed with a barbell. Both are great exercises for the legs, but they serve slightly different purposes. Hack squats usually provide better quad hypertrophy, while barbell squats are excellent for building overall strength and developing multiple muscle groups at once.

Are hack squats the same as squats?

They are similar exercises, but they produce different training outcomes. Hack squats focus more on the quadriceps and allow you to train close to failure more easily. Regular squats are better for developing overall lower-body strength.

Which exercise is better for beginners?

If your goal is mainly to build leg muscles, the hack squat is usually easier to learn and often safer for beginners. If your goal is to build overall strength, it can be worth spending time learning proper squat technique.

Can I do hack squats and barbell squats in the same workout?

Doing both barbell squats and hack squats in the same workout can make you extremely fatigued and may even become counterproductive. If you decide to include both, use one exercise as the heavy movement with sets of 4 to 6 reps, and perform the other with lighter weight for higher repetitions. Our general recommendation is to avoid performing both exercises in the same workout.