By Jack Atkins, Home Gym Equipment Specialist · Updated 24 October 2026
A Roman chair is a padded bench that pins your ankles under rollers while your hips rest on a pad, so you can fold forward at the waist and lift your torso back up. In UK gyms and shops the name almost always means a hyperextension bench, usually angled at 45 degrees, and you use it for back extensions, glute-focused hip extensions, side bends and some sit-up variations. It trains the lower back, glutes and hamstrings with nothing but bodyweight, a plate or a dumbbell, and a decent home version folds away and costs well under £150.
That's the short answer. The longer one matters if you're buying, because "Roman chair" gets attached to at least four different machines depending on who's selling it.
Search for a Roman chair on Amazon UK and you'll see three very different products on the first screen. Here's how the names actually map out.
| Name | What it is | Main exercise |
|---|---|---|
| Roman chair (UK usage) | Hip pad plus ankle rollers, usually at 45 degrees | Back extension |
| Hyperextension bench / back extension bench | The same thing, often the label Mirafit and Amazon sellers use | Back extension |
| 45-degree back extension | The angled version specifically | Back and hip extension |
| Horizontal (90-degree) back extension | Flat version, your body starts parallel to the floor | Back extension, harder at the top |
| Captain's chair (often called a Roman chair in the US) | Upright frame with back pad and elbow rests, you hang and lift your legs | Knee and leg raises |
| GHD (glute ham developer) | Long frame, curved thigh pad, adjustable footplate | Glute ham raise, back extension, GHD sit-up |
The name has drifted between machines for decades, and retailers aren't consistent about it. If a listing shows someone hanging from their elbows, that's a captain's chair, not what this guide covers. If it has a long curved pad and a plate under your feet, it's a glute ham developer, which does more but costs and weighs a lot more.
The angle changes where the exercise feels hardest. On a 45-degree bench, gravity pulls on your torso most when you're folded halfway down, and the top of the rep is relatively easy because you're only partly horizontal. On a horizontal bench your upper body is level with the floor at the top, so the lockout is the hardest point and the whole movement feels heavier.
For a home gym we'd pick the 45-degree version almost every time. It's shorter, simpler to climb into, and easier to scale for a beginner. It's also the better tool for glute work, because you can round slightly through the upper back and drive with the hips for 15 to 25 reps without your lower back giving out first.
Horizontal benches suit people who already have a strong posterior chain and want the top of the movement to be the hard bit. They're rarer in UK home-gym listings, and the frame tends to be longer.
Most Roman chairs at the budget end look identical in photos. These are the details that separate a bench you'll use for years from one that ends up as a coat rack.
Pad height adjustment. This matters more than anything else. The hip pad (or the whole frame, on some designs) needs to move far enough that the pad's top edge sits just below your hip crease. Look for at least five or six height settings on a pop-pin. Fixed-height benches only fit a narrow band of leg lengths, and taller lifters tend to complain most.
Ankle rollers and footplate. You want rollers that grip without crushing your Achilles. Two sets of rollers (one in front, one behind the ankle) feel more secure than a single pad. A footplate with grip tape stops your trainers sliding, and an angled plate is better than a flat bar.
Maximum user weight. Budget folding models often list around 100kg to 120kg, while heavier commercial-style frames go to 150kg or more. Remember to count any plate or dumbbell you plan to hold, not just your bodyweight.
Footprint. A typical 45-degree bench takes up roughly 120cm to 140cm by 60cm to 75cm of floor. A GHD can run past 170cm long. Measure your space with the pad at its longest setting.
Folding and weight. Folding Roman chairs exist and they're genuinely handy in a spare room, but the hinge is usually the weak point. If you'll leave it set up, a non-folding frame of 20kg or more will feel steadier on the way up.
Wide hip pad. Split or narrow pads dig in. A wider, firmer pad spreads the pressure across your thighs, which makes higher-rep sets far less uncomfortable.
The default exercise: hips on the pad, hinge forward, then lift until your body forms a straight line. Our full guide to the back extension covers the step-by-step form. Small details shift the emphasis. A 2002 study of healthy adults on a Roman chair found lumbar extensor activity was 18% higher with the legs internally rotated and 25% higher when they deliberately exaggerated the arch in their lower back, while glute and hamstring activity didn't change between those conditions (Mayer et al., Arch Phys Med Rehabil). So if you want more lower back, keep a neutral to slightly arched spine and point your toes in a touch.
Turn your feet out, push your hips into the pad, tuck your chin and let your upper back round slightly. Now the movement is mostly hip hinge, and your glutes do the lifting. Squeeze hard at the top and stop at a straight line. It's a good finisher after hip thrusts and works well for 15 to 20 reps with a plate held to your chest.
Turn sideways, with one hip on the pad and your feet stacked under the rollers. Lower your torso towards the floor and side-bend back up. This hits the obliques and quadratus lumborum hard, so start with bodyweight and short sets. Our oblique exercises guide has more options if you want to build up to it.
Some Roman chairs let you sit facing the other way with your feet hooked under the rollers for a partial sit-up, which works if the frame is designed for it (check the listing). You can also hold the top of a back extension for 30 to 60 seconds, a variation on the Biering-Sørensen test that physios use to gauge back endurance.
Stand in the bench with your feet on the plate and the rollers resting just above your ankles. The top of the hip pad should sit just below the crease where your thigh meets your pelvis.
Too high, and the pad blocks your hips, so the only way down is to bend through the lumbar spine. Your lower back does nearly all the work and your glutes switch off. Too low, and you'll feel like you're about to slide forward off the front, with the pad pressing into your stomach.
A quick test: hinge down slowly with your back flat. If you can't get your torso much past 45 degrees from the line of your legs before your hips jam against the pad, drop it a notch.
Hyperextending at the top. The machine's nickname doesn't help here. Lifting well past a straight line and cranking your lower back into an arch adds compression without building anything. Stop when your head, hips and heels line up.
Swinging. Bouncing out of the bottom using momentum takes tension off the muscles you're trying to train and makes it easy to overshoot the top. Take about two seconds on the way down and lift under control.
Loading too soon. Most people get plenty from bodyweight for the first few weeks. Once 3 sets of 15 feel easy, hug a 5kg or 10kg plate to your chest before you think about holding it behind your head, which lengthens the lever and makes it much harder.
Ignoring the pad height. Covered above, but it's the fault that crops up most in owner reviews of budget benches: people blame the bench for back discomfort when the pad simply sits too high for them.
A Roman chair moves your torso while your legs stay fixed. A reverse hyperextension flips that: your torso stays on the bench and your legs swing up behind you. One lab comparison of the two found the hyperextension produced more integrated glute and hamstring activity, while the reverse hyper produced a greater lower back moment and more hip range of motion with less lumbar flexion (Lawrence et al., J Strength Cond Res). Neither one wins outright, then. If you want glutes and hamstrings, the Roman chair is the cheaper and more practical choice for home; reverse hyper machines are big and rarely sold for home use anyway.
A GHD adds the glute ham raise, one of the best hamstring exercises there is, but it's roughly twice the length and usually double the price. If you can't fit one, our glute ham raise alternatives cover ways to train the same pattern on the floor. And if you don't have room for a Roman chair at all, see our back extension alternatives, which use a bench, a Swiss ball or just the floor.
If you already deadlift and do RDLs, a Roman chair is a nice extra rather than a must. Where it earns its place is high-rep posterior chain work that you can do on lighter days or at the end of a session without loading a barbell, plus side bends and holds that are awkward to set up any other way. For a beginner training at home without a barbell, it's one of the cheapest ways to build a strong lower back and glutes, so the case for buying one is stronger still.
Prioritise a pad that adjusts to your leg length, decent rollers and a frame rated well above your bodyweight. Everything else, including the folding mechanism, is secondary. Browse the rest of our home gym guides for benches, racks and the kit that pairs with it.
In the UK, a Roman chair is a bench you lock your feet into while your hips rest on a pad, so you can hinge your upper body down and back up. It's mainly used for back extensions, glute-focused hip extensions, side bends for the obliques and, on some models, decline sit-ups. It trains your lower back, glutes and hamstrings without a barbell.
In most UK shops, yes. Roman chair, hyperextension bench and back extension bench all describe the same piece of kit: a frame with a hip pad and ankle rollers, usually set at 45 degrees. In the US the name is muddier, because a lot of Americans use Roman chair for the captain's chair, the vertical frame you hang from for leg raises.
For a home gym, the 45-degree version is the better buy for most people. It's smaller, easier to get on and off, and the resistance is gentler at the bottom, which suits beginners and higher-rep glute work. A horizontal (90-degree) bench is harder at the top of each rep and takes up more floor, so it suits people who already have a strong lower back.
For a standard back extension, set the top edge of the hip pad just below your hip crease, roughly where the top of your thigh meets your pelvis. That lets you fold freely at the hips. If the pad sits above the hip bones, you can only bend from the lower back, which shifts the work away from your glutes and hamstrings.
Not for most healthy people using sensible technique. The risk comes from swinging hard and arching well past a straight line at the top, which loads the lumbar spine for no extra benefit. Finish each rep with your body in a straight line, control the lowering phase, and if you have an existing back problem, check with a physio before loading it.
A GHD (glute ham developer) has a curved thigh pad and a footplate you can push against, so you can do glute ham raises as well as back extensions and sit-ups. A Roman chair can't do a proper glute ham raise. GHDs are longer, heavier and dearer, so for most home gyms a Roman chair covers the useful movements at a fraction of the size.
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