Dynasty Prone Leg Curl machine, black, with padded leg rests, front view.

Dynasty Prone Leg Curl machine, black, angled view with adjustable arm.

Dynasty Prone Leg Curl dimensions: top, front, side views with labeled measurements.

Exercises and muscles targeted

Exercise	Muscles Targeted
Prone Leg Curl (bilateral)	Biceps Femoris — Long Head (primary — hip extended position maximises long head recruitment), Biceps Femoris — Short Head (primary), Semimembranosus (primary), Semitendinosus (primary), Gastrocnemius (secondary — plantarflexion at ankle contact), Popliteus (secondary at full flexion)
Prone Leg Curl — Isometric Hold (peak)	Biceps Femoris, Semimembranosus, Semitendinosus (sustained isometric at maximum knee flexion in hip-extended position — maximum hamstring peak contraction), Gastrocnemius (co-contraction), Popliteus (sustained)
Prone Leg Curl — Slow Eccentric	Biceps Femoris Long Head (maximum eccentric stretch-loaded stimulus — hip extended position creates the longest effective hamstring length through the full lowering arc), Semimembranosus, Semitendinosus (eccentric), Dynasty Flex-Stack 1:1 ratio maintains consistent resistance through full eccentric return
Prone Leg Curl — Partial ROM (peak arc)	Biceps Femoris, Semimembranosus (sustained time under tension at peak knee flexion — maximum hamstring contraction finisher), used for post-failure burnout sets and peak contraction strength development
Prone Leg Curl — Drop Set	Biceps Femoris, Semimembranosus, Semitendinosus (extended hamstring time under tension through instant stack drops — selectorized format enables drops without repositioning), maximum hamstring fatigue accumulation within a single prone curl session
Prone Curl Combined with Plantar Flexion	Biceps Femoris, Semimembranosus, Semitendinosus (primary), Gastrocnemius (increased — active plantar flexion during the curl adds calf activation to the working set), Popliteus (secondary)

The prone leg curl trains the hamstrings with the hip in a neutral-to-extended position, which is the body orientation that places the bi-articular hamstring muscles — particularly the biceps femoris long head — at their longest effective functional length before the knee flexion begins. Research comparing prone and seated hamstring curl positions consistently identifies the prone or hip-extended position as producing higher muscle activation per rep because the hamstrings begin each curl from their most lengthened state at both joints simultaneously. The DRE8015's biomechanically determined hip angle and knee pivot maximise this activation while keeping the lower back unloaded throughout the set, making it the most mechanically efficient body position for hamstring curl training available in a selectorized machine format.

Who this machine is built for

Serious Home Gym Builders
You train hamstrings seriously and you understand that the prone position produces stronger hamstring activation than the seated position because the hip extended angle places the hamstrings at their longest effective length before the curl begins. The DRE8015 delivers this superior activation profile in a selectorized machine format at 64.6"×47.3" with a 210 lb stack and the Dynasty Flex-Stack System's 1:1 felt weight ratio. The hip angle and handle grip positions are both verified through thousands of biomechanical experiments rather than approximated from convention.

Bodybuilders and Physique Athletes
The biceps femoris long head sweep visible from the rear in competition and hamstring separation from the glute are developed most effectively through the prone curl's hip-extended position, where the long head is stretched at both the hip and the knee before each rep begins. The DRE8015 trains this specific quality through a machine-guided prone arc with a biomechanically tested pivot that keeps the resistance mechanically correct through the full curl, and the Dynasty Flex-Stack 1:1 ratio makes the eccentric return at full stretch just as productively loaded as the concentric curl — which is where the greatest hypertrophy stimulus for the hamstrings occurs. The slow eccentric variation in the prone position is the most effective single technique for hamstring long head development.

Commercial Gym Owners and Operators
A dedicated prone leg curl machine alongside a seated leg curl machine gives a commercial facility complete hamstring coverage across both body positions, serving members who have been specifically told by coaches or practitioners to train hamstrings in the hip-extended prone position. At 531 lbs before the stack the DRE8015 stays firmly planted. The three adjustable feet keep the machine level on uneven commercial flooring, and the biomechanically determined grip positions mean members need less coaching to find the correct arm and body position for productive training.

Powerlifters and Strength Athletes
The prone leg curl position trains the hamstrings in the body orientation that most closely mirrors the hamstring's function during the deadlift pull — hip extending while the knee flexes — making it the most mechanically specific accessory curl exercise for deadlift hamstring development. The DRE8015's 1:1 felt weight ratio makes accessory load progression precise, and the biomechanically tested pivot reduces knee joint shear that makes heavy prone curl training uncomfortable on machines with approximated pivot geometry.

University and College Athletic Departments
Sprint mechanics research identifies the prone and hip-extended hamstring curl position as the most specific machine exercise for the hamstring's eccentric deceleration function during the swing phase of sprinting — when the hamstrings are under eccentric load while the hip is extended. The DRE8015's prone position with its hip-extending body orientation is therefore more directly transferable to sprint hamstring function than the seated curl where the hip is flexed. For sprint-based and kicking sports with high hamstring injury rates, the DRE8015 provides the most specific machine-based hamstring training available.

Physical Therapists and Sports Medicine Practitioners
The prone leg curl position is used in hamstring injury rehabilitation protocols specifically because it trains the hamstrings in the hip-extended position where sprint-related hamstring injuries typically occur — re-establishing strength in the position of function rather than the compensated seated position. The DRE8015's hip angle is optimised through thousands of experiments to minimise lower back stress, which is critical for rehabilitation settings where lower back loading must be carefully managed. The 7-position ankle and 6-position knee adjustments allow the working range to be set precisely for each stage of recovery. Exercise selection, load, and range of motion must always follow the clinical programme specific to each patient's condition and recovery stage.

Owner's Manual

Access the complete assembly guide, parts list, and maintenance schedule below.

Download Owners Manual

Shipping & Delivery

All Dynasty Fitness equipment ships free across the 48 contiguous US states via freight carrier. If the product description says preorder, we'll send you an estimated delivery date via email.

Estimated delivery: 7–14 business days from order confirmation. You will receive a tracking number and a delivery window confirmation call before your shipment arrives. Deliveries are curbside standard, white glove delivery to room of choice is available at checkout.

Returns: Free within 30 days of delivery. Items must be in original condition and packaging. Refunds processed within 5 business days of return receipt.

Questions? Contact our team at:
📧Email: info@thedynastyfitness.com
📞Call: +1 (213)-584-0858

Need a buying guide?

Looking for one to one support before making final decision?
Feel free to contact us. Our expert support team would love to assist you.

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Save 10%

Prone Leg Curl DRE8015

$2,559.00

$2,559.00 ~~$2,849.00~~ 10% off (Save$290.00 )

Commercial Grade
Pay With HFA/FSA

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Weight Stack: 210lb

210lb 250lb

!!IMPORTANT!! 250lb upgrade is going to be ready by late April/beginning of May

The Dynasty Fitness DRE8015 Prone Leg Curl is a selectorized hamstring machine that trains the biceps femoris, semimembranosus, and semitendinosus through a prone lying position where the hip is extended throughout the curl arc — placing the bi-articular hamstring muscles at a longer effective length at the hip than the seated curl position provides, which produces a stronger muscle activation signal and a greater stretch-loaded eccentric stimulus per rep. The hip flexion angle of the lying pad was determined through thousands of biomechanical experiments to find the position that allows the body to rest fully supported while minimising lower back stress during the curl, and the upper handle adduction angle was separately verified through thousands of tests to find the grip geometry that reduces support fatigue so the arms and shoulders do not become the limiting factor in a hamstring set. The pivot point was confirmed through extensive data sampling and biomechanical testing to align with the knee joint's natural movement axis, and a 7-position ankle adjustment combined with a 6-position knee adjustment fits every user leg length precisely. The Dynasty Flex-Stack System delivers a true 1:1 felt weight ratio throughout. Built to commercial grade at 64.6"×47.3"×62.9" with a 210 lb standard stack and a 250 lb upgrade option available through Dynasty Fitness, the DRE8015 is built for commercial gyms, personal training studios, and serious home gym setups where the prone position's superior hamstring activation profile is a specific programming priority alongside or instead of the seated alternative.

Prone position keeps the hip extended throughout the curl, placing the bi-articular hamstrings at a longer functional length than the seated position — producing stronger muscle activation across all three hamstring heads and a greater stretch-loaded eccentric stimulus that seated leg curl alternatives cannot replicate from the same body position
Hip flexion angle of the lying pad verified through thousands of biomechanical experiments to find the position that minimises lower back stress while providing full body support — so the lower back is protected rather than loaded during the prone curl even under heavy stack selections
Upper handle adduction angle confirmed through thousands of experiments to deliver the grip geometry that reduces arm and shoulder support fatigue, keeping the effort in the hamstrings rather than in the muscles holding the upper body in position
Dynasty Flex-Stack System delivers a true 1:1 felt weight ratio with a pivot point confirmed through extensive data sampling and biomechanical testing to align with the knee joint's movement axis — mechanically correct resistance through the full prone hamstring curl arc

Limited time offer

Get 20% off when you order 4 or more pieces of equipment!

Exercises and muscles targeted

Exercise	Muscles Targeted
Prone Leg Curl (bilateral)	Biceps Femoris — Long Head (primary — hip extended position maximises long head recruitment), Biceps Femoris — Short Head (primary), Semimembranosus (primary), Semitendinosus (primary), Gastrocnemius (secondary — plantarflexion at ankle contact), Popliteus (secondary at full flexion)
Prone Leg Curl — Isometric Hold (peak)	Biceps Femoris, Semimembranosus, Semitendinosus (sustained isometric at maximum knee flexion in hip-extended position — maximum hamstring peak contraction), Gastrocnemius (co-contraction), Popliteus (sustained)
Prone Leg Curl — Slow Eccentric	Biceps Femoris Long Head (maximum eccentric stretch-loaded stimulus — hip extended position creates the longest effective hamstring length through the full lowering arc), Semimembranosus, Semitendinosus (eccentric), Dynasty Flex-Stack 1:1 ratio maintains consistent resistance through full eccentric return
Prone Leg Curl — Partial ROM (peak arc)	Biceps Femoris, Semimembranosus (sustained time under tension at peak knee flexion — maximum hamstring contraction finisher), used for post-failure burnout sets and peak contraction strength development
Prone Leg Curl — Drop Set	Biceps Femoris, Semimembranosus, Semitendinosus (extended hamstring time under tension through instant stack drops — selectorized format enables drops without repositioning), maximum hamstring fatigue accumulation within a single prone curl session
Prone Curl Combined with Plantar Flexion	Biceps Femoris, Semimembranosus, Semitendinosus (primary), Gastrocnemius (increased — active plantar flexion during the curl adds calf activation to the working set), Popliteus (secondary)

Who this machine is built for

Owner's Manual

Access the complete assembly guide, parts list, and maintenance schedule below.

Download Owners Manual

Shipping & Delivery

All Dynasty Fitness equipment ships free across the 48 contiguous US states via freight carrier. If the product description says preorder, we'll send you an estimated delivery date via email.

Returns: Free within 30 days of delivery. Items must be in original condition and packaging. Refunds processed within 5 business days of return receipt.

Questions? Contact our team at:
📧Email: info@thedynastyfitness.com
📞Call: +1 (213)-584-0858

Need a buying guide?

Looking for one to one support before making final decision?
Feel free to contact us. Our expert support team would love to assist you.

Payment & Security

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Prone Leg Curl DRE8015

$2,559.00

$2,559.00 ~~$2,849.00~~ 10% off (Save$290.00 )

Key Features

Hip Extended Hamstring Training

The prone body position keeps the hip in a neutral-to-extended orientation throughout the curl, which places the bi-articular hamstring muscles — particularly the biceps femoris long head — at their longest effective length at the hip before the knee flexion begins. Because the long head crosses both the hip and the knee, its functional length is determined by both joints simultaneously. The prone position stretches it at the hip, creating the longest possible starting length for each rep and producing the strongest activation signal and the greatest stretch-loaded eccentric stimulus available from any machine curl position. This is the mechanical basis for the prone curl's superior hamstring recruitment profile compared to the seated alternative.

Hip Angle

The angle at which the chest pad and lying surface position the hip during the prone curl was determined through thousands of biomechanical experiments rather than from a standard design convention. This specific angle accomplishes two objectives simultaneously: it places the body in the prone curl position that maximises hamstring activation from the hip-extended orientation, while also minimising the lower back stress that an incorrectly positioned prone curl machine creates when the pad geometry forces the lumbar spine into excessive extension. The thousands-of-tests validation is the documented basis for this being a specifically optimised angle rather than an approximated one.

Upper Handle Adduction Angle

The angle at which the upper handles present the grip to the user during the prone curl was verified through thousands of experiments to find the position that minimises support fatigue in the arms, shoulders, and upper back while the legs perform the curl. In a prone curl, the upper body must maintain a stable braced position throughout the set without active arm muscle involvement — if the grip angle forces the forearms into an awkward position, the upper body stabilisation muscles fatigue before the hamstrings do and cut the set short. The verified handle adduction angle positions the forearms and hands naturally so the upper body brace is passive and the entire effort stays in the hamstrings.

Biomechanically Tested Pivot Point

The curl mechanism pivot was positioned through extensive data sampling and biomechanical testing to align with the knee joint's natural movement axis in the prone body position. The prone position changes the angle at which the lower leg travels through the curl arc relative to the seated position, which means the optimal pivot point for a prone curl is different from the optimal pivot for a seated curl. The DRE8015's pivot was tested specifically for the prone body orientation, ensuring the resistance direction stays aligned with the hamstring's pull direction through the full prone curl arc rather than using a seated curl pivot geometry that diverges from the correct path when the user is lying face down.

Two-System Adjustment Architecture

Seven ankle pad positions and six knee adjustment positions configure the DRE8015 for each user's lower leg length and thigh length independently. The ankle pad telescopic adjustment sets the contact point correctly for different lower leg lengths without creating bone contact at the ankle. The knee position adjustment aligns the machine's tested pivot with each user's knee joint centre in the prone position. Together they provide the same principle of individual custom-fitting to the prone curl that the three-system adjustments deliver to the seated curl machines — ensuring the biomechanically tested pivot produces its correct arc for every user rather than only for users whose proportions happen to match a fixed design point.

Dynasty Flex-Stack System

The DRE8015 runs on the Dynasty Flex-Stack System, delivering a true 1:1 felt weight ratio through the full prone hamstring curl arc. This is particularly relevant at the fully extended starting position where the hamstrings are at their longest and the eccentric stretch-loaded stimulus is at its greatest. The prone position's additional hamstring stretch at the hip — compared to the seated position — makes this starting position even more mechanically productive per rep, and the Flex-Stack System ensures the selected stack weight is fully active at this position rather than reduced through a cam system that reduces resistance exactly where the largest training stimulus would be generated.

Product Information
Product Name	Prone Leg Curl
Model	DRE8015
Series	DRE80 Selectorized Series
Product Type	Selectorized Prone Leg Curl Machine
Function	Prone hamstring curl — hip-extended position for maximum hamstring length and activation
Target Muscles	Biceps Femoris Long and Short Heads, Semimembranosus, Semitendinosus (primary), Gastrocnemius (secondary)
Resistance System	Dynasty Flex-Stack System — 1:1 felt weight ratio
Pivot Development	Extensive data sampling and biomechanical testing — aligned with knee joint movement axis in prone position
Hip Angle	Verified through thousands of biomechanical experiments — minimises lower back stress
Handle Angle	Adduction angle verified through thousands of experiments — minimises support fatigue
Grade	Commercial
Colour	Black
Dimensions and Weight
Length	64.6 in (164.1 cm)
Width	47.3 in (120.4 cm)
Height	62.9 in (160.2 cm)
Net Weight	531 lbs (241 kg)
Weight Stack
Standard Weight Stack	210 lbs
Upgraded Weight Stack	250 lbs — contact Dynasty Fitness
Adjustability
Ankle Pad Positions	7 positions
Knee Adjustment Positions	6 positions — pivot alignment
Foundation Feet	3 x adjustable levelling feet
Pads and Body Support
Chest Pad	Full torso support — biomechanically angled hip position
Ankle Pad Surface	Leather foam — durable lower shin contact surface
Arm Pads	2 x adjustable — adduction angle verified for minimal support fatigue
Mechanism and Pulleys
Pulleys	4.5" pulley x2, 3.5" pulley x1, V-pulley x1
Bearings	6005 x8
Arm Balance	Clump weight — curl arm frame counterbalance for 1:1 ratio accuracy
Frame and Construction
Main Frame Tubing	1.97"×5.9"×0.1" rectangular steel
Movement Arm Tubing	Φ2.4"×0.1"
Indoor Use Only	Yes

Q: Why does the prone position produce stronger hamstring activation than the seated position?
A: The hamstrings are bi-articular muscles — they cross both the hip and the knee. Their functional length at any point during the curl is determined by both joints simultaneously. In the prone position the hip is extended, which stretches the hamstrings at the hip end before the knee flexion even begins. In the seated position the hip is flexed, which already shortens the hamstrings at the hip before the curl starts. This means the prone curl begins each rep from a longer overall hamstring length, producing a stronger activation signal from the first degree of movement and a greater stretch-loaded eccentric stimulus during the return. The biceps femoris long head — the most visible hamstring component from the rear — is the most affected by this positional difference because it has the greatest hip-crossing component.

Q: What does "optimal hip flexion angle verified through thousands of experiments" mean in practice?
A: The chest pad and lying surface position the hips at a specific angle during the prone curl. If this angle is too flat, the lower back is forced into hyperextension during the curl drive phase, which loads the lumbar spine and limits how hard the hamstrings can contract before the lower back becomes uncomfortable. If the angle has too much hip flexion, the hamstrings lose some of the hip-extended stretch advantage that makes the prone position superior to seated alternatives. The angle on the DRE8015 was tested through thousands of trials to find the specific point that maximises hamstring activation while keeping the lumbar spine in a low-stress position throughout the set.

Q: How is the prone leg curl different from the seated leg curl on the DRE8013?
A: The DRE8015 trains the hamstrings with the hip extended — producing greater hamstring activation, particularly in the biceps femoris long head, because the muscles begin each curl from their longest effective functional length. The DRE8013 trains the hamstrings with the hip flexed in the seated position, which shortens the hamstrings at the hip before the curl begins and shifts the training emphasis toward peak contraction work. Both machines run the Dynasty Flex-Stack System's 1:1 felt weight ratio and both have biomechanically tested pivots, but for different body positions. The most effective hamstring programming uses both positions across a training cycle rather than choosing one exclusively.

Q: What is the Dynasty Flex-Stack System and why does it matter for a prone curl?
A: The Dynasty Flex-Stack System is the internal pulley arrangement that delivers a true 1:1 felt weight ratio throughout the prone curl arc. The fully extended starting position — where the hamstrings are at their longest and where the eccentric stretch-loaded stimulus is greatest — is precisely the point where cam-based machines typically reduce felt weight to manage knee stress. The Flex-Stack system maintains consistent resistance at this position, which means the most productive part of the prone curl arc from a hypertrophy standpoint delivers the full selected stack weight rather than a cam-reduced fraction of it.

Q: How do I set the ankle pad and knee positions correctly for the prone position?
A: Lie on the chest pad first to establish the prone body position before adjusting the pads. With both legs extended and the body in the prone curl position, the ankle pad should contact the back of the lower shin just above the ankle without any bone contact at the ankle joint itself. If you feel the pad pressing on the Achilles tendon, move the pad further up the shin. The knee adjustment sets the pivot alignment — start at the middle position and test a few light-load reps. If the knee feels lateral pressure or the curl arc does not feel smooth, move the knee position one increment and retest before committing to working weight.

Q: What Dynasty Fitness machines pair with the DRE8015 for a complete hamstring and lower body training area?
A: The DRE8015 covers prone hamstring curl in the hip-extended position for maximum long head activation. Pair it with the Seated Leg Curl DRE8013 for hamstring training in the seated hip-flexed position that emphasises peak contraction work — the two positions together cover the full hamstring stimulus across different effective muscle lengths. The Leg Extension DRE8014 adds quad isolation to complete both sides of the knee joint from dedicated selectorized machines. The Multi Back Extension DRE8040 adds posterior chain hip extension for the glutes and erectors alongside the knee flexion hamstring work the DRE8015 provides.

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We are committed to equipment that stands the test of time — and to making sure the people who train the hardest have access to the tools that match their effort.