to top 10 table

Best Leg Curl Machine Reviewed – 2021 List

last updated: Dec 15, 2020

Investing in a great leg curl machine means that you will be less likely to skip leg day! Isolating large muscle groups such as your hamstrings and glutes can prove to be a little challenging when you don’t have the right equipment. These machines work by loading Olympic plates onto a central bar. By laying on your stomach, you will activate your hamstrings and glutes. By sitting upright, you will really dig into your quads while supporting your lower back. We love these machines because they are versatile, and can really isolate every large muscle group in your legs which can be quite hard without a dedicated machine. In this guide, we have provided a list of our very favorite leg curl machines to get you excited about leg day again!

In a Hurry? The test winner after 20 hours of research

icon
Weider XRS 20
98.4/100 our score
Adjustability
99
Durability
98
Support
99
Features
98
Motion Control
98
Weider XRS 20
Why is it better?

Trusted brand

Affordable

Adjust back

In a Hurry? Editors choice:
Weider XRS 20
Test Winner: Weider XRS 20
Amazon Link
Researched Sources
42
Researched Sources
Reviews Considered
5k
Reviews Considered
Hours Researching
20
Hours Researching
Products Evaluated
14
Products Evaluated
Sorting Options
Adjustability Durability Support Features Motion Control By Default
Rank
PictureProduct
Name
Rating
Shops
#1
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.4
Adjustability
99 %
Durability
98 %
Support
99 %
Features
98 %
Motion Control
98 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$177.00
#2
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
97
Adjustability
98 %
Durability
97 %
Support
97 %
Features
96 %
Motion Control
97 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$500.00
#3
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96
Adjustability
96 %
Durability
97 %
Support
95 %
Features
96 %
Motion Control
96 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$299.00
#4
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.4
Adjustability
96 %
Durability
96 %
Support
95 %
Features
96 %
Motion Control
94 %
Price Comparison Last Updated (21.01.21)
Amazon Link
#5
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.8
Adjustability
94 %
Durability
94 %
Support
94 %
Features
92 %
Motion Control
95 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$2,326.00
#6
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.6
Adjustability
93 %
Durability
93 %
Support
92 %
Features
91 %
Motion Control
94 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$1,295.00
#7
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.6
Adjustability
91 %
Durability
91 %
Support
90 %
Features
90 %
Motion Control
91 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$2,945.00
#8
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90
Adjustability
90 %
Durability
91 %
Support
89 %
Features
90 %
Motion Control
90 %
Price Comparison Last Updated (21.01.21)
Amazon Link
#9
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Adjustability
90 %
Durability
90 %
Support
89 %
Features
88 %
Motion Control
89 %
Price Comparison Last Updated (21.01.21)
Amazon Link
#10
The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.6
Adjustability
88 %
Durability
87 %
Support
87 %
Features
85 %
Motion Control
86 %
Price Comparison Last Updated (21.01.21)
Amazon Link
$1,979.00

10 Best Leg Curl Machines

1. Weider XRS 20

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
98.4
Weider XRS 20
Amazon Link
Adjustability
99
Durability
98
Support
99
Features
98
Motion Control
98
best offer for today
Amazon Link
$177.00
Pros:

Trusted brand

Affordable

Adjust back

Cons:

A little wobbly

What we love most about this design from Weider is that it is composed of string materials that hold up well over the years, and it boasts a frame that makes fitting in a comprehensive leg workout quick and easy. This versatile machine not only works your lower body, but it can be used to target your upper body as well.

Read more

The XRS 20 looks like your standard weight bench, but it is also boat leg bars at the base to work your legs as well. By loading up plates on the leg at the end of your bench and hooking your feet into the sturdy foam pads, you can fit in a killer workout for your hamstrings and glutes.

The back of the bench is able to be adjusted to a steep incline that allows for leg extensions in addition to standard curls. Users love that it is easy to load and unload plates, and it provides ample padding to protect your legs when you are pushing on pretty heavy weights.

If you are in the market for something sturdy and versatile that comes from a trusted brand, this option from Wider is an excellent choice. It is made from strong materials that hold up well over time. And it comes in at a price point that won’t break the bank.

2. Marcy PM-5788

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
97
Marcy PM-5788
Amazon Link
Adjustability
98
Durability
97
Support
97
Features
96
Motion Control
97
best offer for today
Amazon Link
$500.00
Pros:

High-density foam

Wide backrest

Powder-coated finish

Cons:

Slightly expensive

Not only does this design from Marcy sport a sleek and modern finish that looks like it was lifted right out of a commercial gym, but it is also built like a tank. This solid design is solid and sturdy and is resistant to wobbling when you are pushing heavy weights. It might cost a little bit more than some of the budget-friendly designs that we have seen, but we feel that it is worth every penny.

Read more

The very first thing that we noticed about this design from Marcy is that it has a very wide padded backrest when compared to some of the other models out there on the market. This backrest is able to be adjusted to a variety of different incline and decline areas to help you hit different muscle groups and protect your spine. It is made from high-density foam padding that won’t wear down over time.

It is composed of solid steel construction with a powder-coated finish that protects your equipment from rusting. When fully loaded, this design from Marcy is able to accommodate up to 600 pounds. Plus, it boasts a pair of roller wheels on the base that makes it easy to move when you need to clear up some floor space.

If you are in the market for something that is built tough to help you get the most out of your leg days, this design from Marcy is a great choice. We love that it is composed of solid materials that are resistant to wobbling while in use, and high-density foam helps protect your limbs when pushing heavy weights.

3. Gold's Gym

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
96
Gold's Gym
Amazon Link
Adjustability
96
Durability
97
Support
95
Features
96
Motion Control
96
best offer for today
Amazon Link
$299.00
Pros:

Trusted brand

Very solid frame

Wobble-free

Cons:

Slightly expensive

Difficult to assemble

This design from Gold’s Gym is built like a tank! It is composed of strong and durable materials that hold up well over the years, and it is resistant to the dreaded wobble when loaded up with plates. It provides users with comfortable padding that protects their lower back and knees, and it is packed with helpful features that allow you to really dig into those larger muscle groups.

Read more

The very first thing that we noticed about this design is that it is composed of heavy-duty steel gauge construction. The surprisingly thick steel frame is resistant to rocking or shifting when in use, or even loading up the bar with plates. If you are looking for something that is incredibly solid and secure, this is a great choice.

We also like that it provides users with comfortable features such as a padded backrest and ankle loops to protect your joints when lifting heavy. The curl bar is able to accommodate standard Olympic size plates, and this frame is made for a user weight limit of 300 pounds.

If you are in the market for something that is built tough that comes from a trusted brand, this design from Gold’s Gym is an excellent choice. We love that it is made from solid steel construction that won’t wobble or shift while in use, and holds up incredibly well over the years. It cost a little bit more than some of the other options out there on the market, but we feel that it is well worth the slightly higher price tag.

4. Valor Fitness CC-4

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
95.4
Valor Fitness CC-4
Valor Fitness CC-4 Adjustable Leg Curl/Extension Machine
Amazon Link
Adjustability
96
Durability
96
Support
95
Features
96
Motion Control
94
best offer for today
Amazon Link
Pros:

Sundial adjuster

Compact

Adjustable backrest

Side handles

Cons:

Limit of 150-pound weight capacity

The Valor Fitness CC-4 adjustable seated leg curl machine is a stand-alone unit that allows you to do both leg curls and leg extensions. all without changing your seating position.

Read more

The sundial seat adjuster, similar to what you would see in a commercial gym, lets you change the range of motion until you are satisfied with the right level of extension for your body type and level of flexibility. You can also custom adjust the backrest and thigh support.

This option is a compact unit, with a footprint of just 35 by 35 inches and a 40-inch maximum height. The plate loading capacity is 200 pounds. Heavy duty framing and construction give you a solid and secure base. An included adapter lets you load either one inch or two-inch weight plates.

There are handles, on the side, that you can grasp for even more stability. The generously padded rollers will keep your ankles and knees in place to practice good form and avoid injury.

The Valor CC-4 is a good bang for your buck. Valor offers three warranties-- three years on the frame, two years for the padding, and one year on hardware. When you order, the leg curl machine comes in three separate boxes. Reviewers indicate the machine is easy to assemble.

5. Body Solid SLC400G

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
93.8
Body Solid Lying Leg Curl Machine
Body-Solid Pro Club Line SLC400G 2-Leg Curl Machine
Amazon Link
Adjustability
94
Durability
94
Support
94
Features
92
Motion Control
95
best offer for today
Amazon Link
$2,326.00
Pros:

Center drive cam

Elliptical cams

Extra thick padding

Ergonomic positioning

Cons:

No leg extension capability

The Body-Solid SLC400G is a commercially rated lying leg curl that brings pro gym quality into your home gym.

Read more

The innovative center drive cam that drives this unit provides an incredibly smooth movement through a full range of motion while doing lying hamstring curls. This eliminates the lateral torque which plagues many inferior machines. Pivot points are biomechanically designed to put your body in the ideal place to get the most benefit from the exercise.

The elliptical cams on the SLC400G provide variable resistance, ensuring a nice fluid movement. The foot pads are fully adjustable using a simple pop-pin arrangement. Extra thick bench and roller padding and a stylish powder coated finish add to the appeal of this unit.

If you are not used to doing prone leg curls, the machine may take some getting used to. Some users with back pain will appreciate the chance to lie down instead of sitting up. You cannot do leg extensions on this machine.

The machine weighs over 300 pounds, so you will need help getting it inside and setting it up. It is on the pricey side, but the investment may be worth it to own such a durable leg curl machine.

6. Body Solid LVLC Leverage

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
92.6
Body-Solid ProClubLine Leverage Leg Curl Machine
Body-Solid ProClubLine Leverage Leg Curl Machine
Amazon Link
Adjustability
93
Durability
93
Support
92
Features
91
Motion Control
94
best offer for today
Amazon Link
$1,295.00
Pros:

Direct link movement arms

Sealed bearing pivot points

V bench design

Warranty

Decent price point

Cons:

Some welding work may be low quality

The Leverage weighs 145 and comes with a limited lifetime warranty from Body Solid. The "V" design of the bench does a great job of isolating your hamstrings to do leg curls.

Read more

The prone position means less strain on your back and legs. You can adjust the foot rollers to the position that gives you the most comfort and range of motion.

The upholstery is double stitched for durability and long life. At 74 inches long and 46 inches wide, the machine will take up some space in your home gym.

Currently, the only color choice is black. Solid steel construction suits the Body Solid Leverage to commercial or residential use, though at 182 pounds it is significantly lighter than many commercial units. There is built-in storage for the separately sold weight plates.

Body Solid offers a lifetime warranty for both home and gym use, as it does for many of its products.

7. Inflight Fitness Leg Curl

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90.6
Inflight Fitness Leg Extension/Leg Curl W/Shrouds
Inflight Fitness Leg Extension/Leg Curl W/Shrouds
Amazon Link
Adjustability
91
Durability
91
Support
90
Features
90
Motion Control
91
best offer for today
Amazon Link
$2,945.00
Pros:

Lying leg curl plus seated leg extension

4000 pound cabling

Shrouded powder coat finish

Lifetime frame/plates warranty, 1 year for cables

Cons:

Difficult to assemble

The Inflight Fitness is a lying hamstring curl machine and leg extension combination that allows you to do both movements without changing your seating position.

Read more

Unlike most combination machines, this one provides a prone curl position to take the stress off your lumbar region. The framing of the machine is ultra sturdy, with 2 inches by 4-inch flat oval tubing. Quarter inch 4000-pound cabling gives you total confidence in its durability.

The Inflight hamstring machine is finished in a shrouded powder coating and is clear coated for a mar-resistant lustrous finish. The 200-pound tiered weight stack can be bulked up to 300 pounds as an optional extra. The rollers on this machine automatically adjust to provide ankle support when exercising. The backrest is manually adjustable.

At 413 pounds, this machine is a heavyweight. It is 42 inches wide and 65 inches long, and substantially higher than a prone machine at 78 inches tall. You can sit up and do leg extensions with this versatile machine.

8. Soozier

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
90
Soozier
Amazon Link
Adjustability
90
Durability
91
Support
89
Features
90
Motion Control
90
best offer for today
Amazon Link
Pros:

Many adjustable features

Small footprint

Solid padded leg bar

Cons:

Difficult to assemble

This design from Soozier may prove a little difficult to assemble, but it is well worth it for those looking to save a little bit of money. What we liked most about this design is that it is incredibly affordable, compact, and a cinch to use to fit in a killer leg workout. If you are running low on cash as well as space, this design is worth checking out.

Read more

This seated design means that it will not take up that much room in your home gym. It boasts adjustable foam leg braces to accommodate a wide variety of users and also has an adjustable curl pad as well. While it may look small and compact (and sits lower to the ground than expected) it is still designed for all sizes and shapes of lifters.

What makes this design stand out from the pack is that it has a solid foam roller at the base of the unit. Many designs utilize two separated rollers that lock your legs into a certain position that may or may not be right for your body type. By utilizing a solid bar, you can position your legs to wherever you feel most comfortable and less pain on your joints.

It is important to note that some previous users have run into a little bit of trouble when setting up this device. Be sure to set aside a good around of time dedicated for set up, and maybe employ the help of a friend! While it may be difficult to set up, it is well worth it for a higher-end design that is affordable and compact when compared to some of the other designs out there on the market.

9. Powerline PLCE 165X

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
89.2
Powerline by Body-Solid Leg Extension and Curl Machine
Amazon Link
Adjustability
90
Durability
90
Support
89
Features
88
Motion Control
89
best offer for today
Amazon Link
Pros:

Well priced

Smooth motion

Well constructed

Lightweight and small footprint

Cons:

No seated back support

The Powerline PLCE 165X is a great choice for budget wary fitness buffs who still need a few key features to provide a great workout.

Read more

A lack of back support makes this a poor choice for someone with back issues or back pain. You can get both a leg curl and an extension with this plate loading machine. The seat is adjustable for either a prone leg curl or a leg extension, with maximum comfort in both positions. The leg curl machine is made by Body Solid, using its budget imprint, PowerLine.

The wide base provides stability for this lightweight unit weighing in at just 44 pounds. At 62 inches long, 25 inches wide, and 27 inches tall, the machine will save you space as well as money. You can get an adapter kit to use 2-inch Olympic plates instead of the standard 1-inch plates, and you can also get a set of spring clip collars to secure the plates to the bar.

Leg curls and leg extensions are both possible, and there are hand grips for each to keep you in an ergonomic position. Double stitched padding adds to the durability of this unit.

A powder coated finish also makes the machine resistant to scratches and external damage. We think you will appreciate the value and convenience of the PowerLine PLCE165X and will get many years of use out of it.

10. Body Solid GCECSTK

The rating is based on the average rating (1-100) from all the criteria in which we rated this product.
86.6
Body Solid GCECSTK
Amazon Link
Adjustability
88
Durability
87
Support
87
Features
85
Motion Control
86
best offer for today
Amazon Link
$1,979.00
Pros:

310-pound weight stack

Rotary range of motion adjustment

7 position seat and leg pad adjustment

Can be extended with optional features

Cons:

Unit is pricey

The Body-Solid GCECSTK provides an impressive 310 pounds of plate loaded weight that goes up in 15-pound increments, and the rotary range of motion adjustment on this commercially-rated unit allows for variation in your starting positions.

Read more

The seat angle on this machine is biomechanically designed to allow for complete isolation of the working muscle group. The easy pull pin design means that you can transition from curls to extensions without moving.

With the GCECSTK, you get 7 position adjustments on the back seat and the leg hold down bar so that all users can customize their experience. The oversized 8-inch foam rollers will keep you securely in place with no irritation to your lower legs.

Unique options include an adapter that lets you use weights in 2.5 or 5-pound increments. Protective rubber flooring, to save wear and tear on your gym floor, is also available.

The back pad has seven positions, and you can go between leg curls and extensions in one step with the pull pin.

Criteria Used for Evaluation

Adjustability

A non-adjustable leg curl machine would probably cause joint injuries and back pain.

Adjustable points in leg curl machines include the backrest, bench, ankle pads, weight capacities, and range of motion via sundial constructions with a pin. On some machines, you can also use a large pin to convert from a leg curl to a leg extension machine so you can work out your entire lower body.

This is a large array of options, and not every leg curl machine will have every adjustment feature. Many times, you will have to compromise with a lower-priced model that still has the features you need. We have tried to highlight all the different adjustable options for each machine we reviewed. You can make a decision based on which features you will need, rather than paying extra for features you may never use.

Durability

You need leg curl equipment that can keep up with you as you grow stronger.

A machine that is not durably constructed will leave you disappointed quickly, as you have to take advantage of the manufacturer warranty or fend for yourself if there is no warranty.

There are certain features to look for when it comes to how durable a machine will be. Double stitching in the padding is a plus. Another thing to look for is the quality of the vinyl covering. Also, more moving parts can mean more chances for the machine to break down. The finish of the machine is a good indicator. The best leg curl machines will be powder coated, perhaps even electrostatically powder coated, to help prevent scratches and other superficial damage.

Even the way the machine sits on the floor will help you determine how durable it is. A wide base with some sort of leveling or gripping mechanism shows the care the manufacturer took in making the product. Also, look for a product that offers optional rubber flooring. Or you can look for rubber flooring from a different maker. Either way, the extra layer of rubber will both protect your floor and keep the legs or feet of the machine from excess wear and tear.

Support

You need support whether you are sitting, standing, or lying prone.

Support takes many forms when discussing or reviewing these machines.

Your body weight has to be supported. The bench accomplishes this, both in prone and seated positions. Some machines will have back support, while others will not. Obviously, if you have lower or upper back pain, you will want back support. The best machines have adjustable back support, too, so you can dial in the exact amount of help you need.

Ankle rollers may seem basic, but they ensure you get a full range of motion without putting too much stress or weight on your ankles. So the ankle rollers are part of a machine's support system. You can go for extra padded rollers if you need to. Always make sure the rollers are covered in vinyl or another strong material, and that padding is present.

A heavier machine will provide optimal support, but it will also cost more and will be difficult to move. In selecting a machine, always look for the tradeoff between price and support. Make sure you are not setting yourself up for injury later by trying to save money and get a bargain with your initial purchase. Bargains and value prices are great, but they should not be the only consideration.

Features

The features of a machine help determine performance, effectiveness, and longevity.

Leg curls machines may not have as many features as, for example, an exercise bike. There are typically no cup holders, media shelves, or Bluetooth capabilities. Still, there are certain features and perks you can look out for. Selecting a machine with the right features may keep you from having to spend money on an upgrade later.

How does the weight load? Do you need spring clip collars, or can the weight just sit on the bar with no danger of falling off? These are questions you can ask yourself. You may also want to look at whether you can switch from one-inch weight plates to 2-inch Olympic plates, and how easily you can do this should you choose.

If the machine converts from a leg curl to a leg extension machine, how does it do that? Do you get a good V-shaped bench when you lie prone? Sizes and qualities of pins and moving joints can vary from manufacturer to manufacturer.

The sundial backrest adjustment is another feature that not every leg curl machine has. Some users find the sundial mechanism easy and convenient. If you have never used one, you will want to try out a machine at the gym or a fitness outlet to see if the sundial adjustment is right for you.

Motion Control

Motion control prevents injury and ultimately gives you a more effective workout.

Motion control refers to a consistent movement when you do each rep of an exercise set. It also determines whether you can get a full range of movement. Carefully designed motion control features, too, will prevent you from hyperextending your leg and getting an injury that could sideline you for a while.

Motion control, in these machines, is often a function of bearing type, pivot points, ankle roller adjustability, and backrest adjustability. The overall quality of the machine will make a difference as well. As with any piece of fitness equipment, look for a reputable brand that stands by its products and offers warranties. If you are buying used, come prepared with questions for the seller and do your research on the machine before making any purchase.

Expert Interviews & Opinions

Most Important Criteria (According to our experts opinion)
Sort criterias acording to:
Experts Opinion Editors Opinion Users Opinion By Default
Click on a to rate the most important criteria:
#1
ico Adjustability
Rate This Criteria as Most Important
#2
ico Durability
Rate This Criteria as Most Important
#3
ico Features
Rate This Criteria as Most Important
#4
ico Motion Control
Rate This Criteria as Most Important
expert tips icon
Staying Safe On The Leg Machine

Even the simplest pieces of fitness equipment can cause pain and sprains when used improperly. A leg machine is fairly simple, but it still has moving parts and things to look out for if you want to keep yourself safe and get the most out of your workouts.

Adjust the back pad so that your knees line up perfectly with the pivot point. The pivot point is located at the end of the seat. This is probably the primary consideration when it comes to leg machine safety, as misaligned knees will cause joint pain quickly and will sabotage your results.

Make sure the ankle support is on your ankles, touching the tops of your shoes. The ankle support should never be on your shins, as this will restrict your range of movement and also distribute the weight unevenly.

When you get to the top of the motion, when your leg muscles are contracted all the way without being hyperextended, hold the curl for a few seconds. This helps ensure that your leg muscles are doing the work of lifting, and you are not relying on momentum. Letting momentum do the work will shortchange you and take away from the effectiveness of your workout.

Leg Curls vs. Leg Extensions

Leg curls and leg extensions are similar, and even work out similar muscle groups. But there are some important differences to keep in mind as you move from one exercise to the other.

The leg curl machine will target your hamstrings. These are the muscles running down the backs of your legs. The hamstrings are responsible for bending your knees. Strong hamstrings will help you with running and other outdoor activities.

The leg curl will also work out your calves, specifically the gastrocnemius muscle. This muscle goes over the back of your knee and helps the hamstrings do their work. Leg extensions will also help strengthen your gastrocnemius muscles.

The leg extensions will target your quadriceps more than any other muscle group. The quads are a large muscle group responsible for movement and flexion over most of the front part of your legs. Working the quadriceps is important, as these muscles support you when you stand and have a big responsibility when you walk or run.

Other Factors to Consider

Accessories

There are not many accessories that can go with a leg curl machine. But the ones that are available are important and can be a key part of your level of satisfaction with your purchase.

Rubber protective flooring is one accessory to think about. It will protect your floor from scratches and other damage, while also making the leg curl machine more stable.

Weight plate adapters are another feature. Some machines come with the sleeves you will need to convert from standard weight plates to Olympic plates, which have a bigger orifice for the bar to go through. However, unless you are competing, lifting significant amounts of weight, or changing and moving your weight plates often, you may not even need Olympic plates. Olympic plates are easier to move and load on the machine because they have rubberized grips.

Another accessory to think about is one that does not go with a leg curl machine at all. XMark and other manufacturers offer an extension that can mount on any weight bench and give it leg extension and curl capability. This may be a good option for you if space is at a premium in your home gym. However, you will not get a backrest or many other features unless the weight bench came with them.

Capacity

Capacity refers to how much weight your leg curl machine can handle.

This is an important feature if you are training to lift a lot of weight, or looking to become a serious weightlifter. You do not want to be limited by a machine that maxes out at 200 or 250 pounds. This may mean paying more money for a reinforced machine that will let you safely load up the weight plates to gain mass and strength.

On the other hand, if you are more of a fitness lifter or using the leg curl machine as cross-training for sports like soccer, you may be fine with a 200-pound machine. The capacity you select will depend on your goals with the machine and how much weight you think you will need to lift as an upper limit.

Frequently Asked Questions

q: How will stronger hamstrings help me?

a:

Stronger hamstrings will help you in nearly every area of your life. If you run, walk, or hike often, or if you run indoors on a treadmill, the hamstring muscles will keep you standing and moving longer. You can hike, run, and walk faster and farther if your hamstrings are conditioned.

The hamstring muscles will also help you in daily life, as they are a functional muscle group. Doing chores, lifting groceries or children, yard work, and anything involving twisting, turning, or stooping motions will put your hamstrings to work. Lifting an appropriate amount of weight at the leg curl machine will make all these motions safer and less painful.

q: Are leg curl machines safe?

a:

Leg curl machines are very safe if used according to manufacturers guidelines. The most important consideration is to align your knees with the pivot point. You should check this every time you get on the machine. Misalignment will restrict your range of motion and can cause joint and knee pain over time.

You should also properly position your ankles on the ankle roller. The best padding and covering cannot prevent an injury if you are placing the roller near your knees instead of directly on the ankle.

q: What is a sundial adjustment?

a:

A sundial adjustment is simply a plate with holes cut in it at carefully spaced intervals. The plate is shaped more like an oval than a circle. By taking a pin out of the plate and moving the backrest up and down, you can move the pin to different holes all the way up or down the sundial.

When you get close to a hole, the pin will pop into place. This is how you select the backrest angle that gives you the most comfort and the best results. A sundial is more convenient, and faster than a system where you have to take a pin out and move it by hand.

q: How much weight can I lift with a leg curl machine?

a:

If you train slowly and take rest days, you can lift as much weight as you like. However, the more weight you put on the bar, the more strain you are putting on your knees. There is no give to a leg curl machine; it is made of metal, unlike your body. To avoid strain on your knees, keep the weight within a reasonable range.

For lifting heavy weight, or competitive weightlifting, most athletes opt for barbell exercises like squats rather than loading down a leg curl machine. Heavyweight will also put a lot of strain on the machine.

q: Why do some machines have a prone position?

a:

Being in prone position means you are laying down with your back in the air, facing forward.

Many leg curl machines offer the prone position as an option to reduce strain on your back. Additionally, many machines have the added feature of side handles you can grasp while working out in the prone position. This stabilizes you and helps make sure your hamstring muscles are doing all the work on the leg curl machine, as they should be.

Sources

  1. Keith Tesch, What Muscles Does the Leg Curl/Extension Machine Work?, Fitness Websit
  2. Nick Harris-Fry, How To Do The Leg Curl, Fitness Periodical
  3. Mayo Clinic Staff, Lying hamstring curl with weight machine (video/interview), Health Website