Safety bar squat: how it differs from a barbell back squat, and what the studies measured

A safety bar squat is a back squat with a different bar. The bar has a padded yoke that sits across your upper back and shoulders, and two handles that come forward, so your hands rest on the handles rather than holding a straight bar behind your neck. That's a description of the equipment, not a study result. Studies call it a safety squat bar or a safety bar.

This page covers how to set one up, what five studies measured when they put it beside a traditional barbell back squat, how to use that when you pick a weight, and the sets. The barbell squat itself is on squat form; other ways to load a squat are the front squat and the Zercher squat.

How to do a safety bar squat

These steps are practical setup, not study results. Bars differ, so follow the gym's instructions for the one you have.

1. Set the rack so the bar sits a little below your shoulder height, and set the safety arms just below the lowest point of your squat.
2. Step under the bar with the yoke across your upper back and shoulders, and put your hands on the handles. Keep your elbows down and your chest up.
3. Stand up to take the bar off the hooks and take two small steps back. Feet about shoulder-width apart, toes turned out a little.
4. Brace, then sit down and back until your thighs are about parallel or a little lower, as deep as you can go with your heels flat.
5. Stand up, keeping your chest tall, and rack the bar when the set is done.

As a practical note, not a study result: rest your hands on the handles rather than pulling on them.

What the studies measured against a traditional bar

Five studies in recreationally trained or competitive lifters put the safety squat bar beside other squat bars. They measured one session at a time, not what happens over weeks, so each line is a snapshot.

• A lighter max. In 32 men, the squat one-rep max was 11.6% higher with the traditional bar, and the two maxes were strongly correlated (r = 0.94).¹ In 12 competitive powerlifters, 8 men and 4 women, the safety bar cut the three-rep max by 11.3%.² In 6 men and 8 women who were recreationally resistance-trained, the safety bar allowed the least load of the three bars tested (safety, high-bar and low-bar).³ And 15 recreationally trained men lifted higher maximum loads with the traditional bar.⁴
• A more upright torso. The powerlifters squatted with a more upright trunk angle with the safety bar,² and the 14 men and women also showed a more upright torso inclination with the safety bar.³
• Muscle activity: the studies don't agree. In the 32 men, at the same percentage of each bar's max (65% and 85%), the two bars produced similar muscle activity and bar speed across seven lower-body and trunk muscles.¹ In the 14 men and women, glute activity was higher with the safety bar than with the high-bar squat.³ In the powerlifters, the safety bar lowered activity in the rectus abdominis, hamstrings, vastus lateralis and the calf's medial gastrocnemius and raised it in the lower trapezius, in the upper back; the authors suggest the lighter load may explain the lower leg activity.² Those are different lifters, loads and measures. Activity during a set is not muscle growth.
• Joint torque. At 85% of each bar's max, the traditional bar produced higher peak hip extensor torque and used more hip and ankle mechanical energy; the safety bar produced greater knee bend, with no significant difference in the knee's kinetics.⁴ Those are measurements of effort at joints in 15 men, not a verdict on either bar.
• Bar speed. In 12 recreationally trained men squatting at the same absolute load with each bar, peak force was similar between bars and average bar speed was lower with the safety bar.⁵ In the 32-man study, bar speed was similar at matched percentages of max.¹

None of these studies followed anyone for weeks, so none says which bar builds more muscle or strength over time. What they do say is that the safety bar changes how the squat is done: a lighter max and a more upright torso in the studies above. The authors of the 32-man study advise adjusting your absolute loads when you switch bars.¹

Picking a weight

As practical advice, not a finding: if you know your barbell back squat, start the safety bar about a tenth lighter than that, since the maxes above were around 11% lower, and then add to it from there. Keep the safety bar in your log as its own lift, with its own weights. When the bar changes, the numbers aren't comparable one for one. Reps in reserve is the way to judge a set when you don't know the weight yet.

Sets, reps and where it goes

• Practical start: 3 sets of 5 to 8, stopping with a rep or two in the tank. The American College of Sports Medicine's 2026 position stand, which covers healthy adults, advises at least two sets per exercise.⁶
• As your squat or next to it. It can take the place of the back squat for a block of weeks, or follow a heavier lift as a second squat. Count it with your leg sets.
• Pair it with a hinge, such as the Romanian deadlift, on the same day.

Common questions

Is a safety bar squat easier than a back squat?

It was lighter in the studies above, not necessarily easier: the maxes were about 11% lower in two studies, and at 85% of each bar's own max the joints were doing different work.^1,4 Whether it feels easier is personal.

Is a safety bar squat good for glutes?

In one study of 6 men and 8 women, glute activity was higher with the safety bar than with the high-bar squat, and the authors suggest that if the goal is more gluteus maximus activity, the safety-bar squat may be more effective than the high-bar squat.³ It's one small study of muscle activity, not of growth, and the 32-man study found similar activity for the two bars at matched percentages.¹ The hip thrust is the other glute option on this site.

Does the name mean it's safer?

The studies cited here measured loads, muscle activity, bar speed and joint torques. None of them measured injuries, so I can't say it's safer. I'm a fitness coach, not a doctor: if you have a shoulder, neck, back or other health condition, ask your doctor or a physical therapist before you change your squat.

Safety bar squat or front squat?

They're different lifts, and no study cited here put the two side by side. The front squat needs no special bar.

If you'd rather not plan it alone

A different bar is one change; whether it belongs in your week depends on the rest of your lifts and how your squat is progressing. Coaching is the version where your workouts are built around the days you actually have, and a weekly call looks at the week you just had and rebuilds the next one. Coaching for strength explains how that works, and here's how to apply. Otherwise: if your gym has a safety bar, try 3 sets of 6 at a weight you could lift 8 times, and write down the weight.