Lying Leg Raise (on bench)
The Lying Leg Raise (on bench) primarily works the Iliopsoas, with secondary activation of the Adductor Brevis, Adductor Longus, Pectineus, Sartorius, Tensor Fasciae Latae and stabilizer support from the External Obliques, Rectus Abdominis, Rectus Femoris. It is a bodyweight isolation exercise at intermediate difficulty.
The Lying Leg Raise (on bench) is an intermediate isolation exercise requiring no equipment, following a flexion movement pattern. It primarily targets the Iliopsoas, with secondary engagement of the Adductor Brevis, Adductor Longus, Pectineus, Sartorius, Tensor Fasciae Latae. This is a bilateral pulling movement, engaging both sides of the body simultaneously.
A bodyweight isolation pull exercise targeting the Iliopsoas.
| Equipment | Bodyweight |
|---|---|
| Difficulty | Intermediate |
| Type | Isolation |
| Movement | Flexion |
| Force | Pull |
| Laterality | Bilateral |
| Primary | Iliopsoas |
| Secondary | Adductor Brevis, Adductor Longus, Pectineus, Sartorius, Tensor Fasciae Latae |
Muscles Worked
The Iliopsoas is the primary mover, taking on the bulk of the workload throughout the full range of motion. The Adductor Brevis, Adductor Longus, Pectineus, Sartorius, and Tensor Fasciae Latae act as secondary movers, assisting the primary muscles and contributing meaningfully to the overall output. The External Obliques, Rectus Abdominis, Rectus Femoris act as stabilizers, maintaining joint position and postural alignment throughout the movement.
Primary Muscles
- Primary Muscle Iliopsoas (hip_flexors)
Secondary Muscles
- Secondary Muscle Adductor Brevis (adductors)
- Secondary Muscle Adductor Longus (adductors)
- Secondary Muscle Pectineus (adductors)
- Secondary Muscle Sartorius (hip_flexors)
- Secondary Muscle Tensor Fasciae Latae (hip_flexors)
Stabilizer Muscles
- Stabilizer Muscle External Obliques (core)
- Stabilizer Muscle Rectus Abdominis (core)
- Stabilizer Muscle Rectus Femoris (quadriceps)
How to Perform
Preparation
- Lie supine on bench.
- Place hands under lower buttock on each side to support pelvis.
Execution
- Raise legs by flexing hips and knees until thighs are completely flexed.
- Return until hips and knees are extended.
- Repeat.
Comments
- Rectus Abdominis and Obliques onlycontract dynamicallyif actual waist flexion occurs.
- With no waist flexion, Rectus Abdominis and External Oblique will only act to stabilize pelvis and waist during hip flexion.
- It may be necessary to completely flex hips before waist flexion is possible, as in leg-hip raise.
- Also known as Lying Knee Raise.
- Also seeSpot Reduction MythandLower Ab Myth.
Tips & Common Mistakes
- Control the eccentric phase — the lowering portion drives significant muscle development.
- Avoid momentum; focus on feeling the target muscle work through the full range.
- Full range at both ends maximizes stretch at the bottom and contraction at the top.
Programming Suggestions
Adapt your sets and reps to your training goal.
| Strength | 3–4 sets × 6–8 reps at 75–85% 1RM with 90–120 seconds rest. |
|---|---|
| Hypertrophy | 3–4 sets × 10–15 reps at 60–75% 1RM with 60–90 seconds rest. |
| Endurance | 2–3 sets × 15–25 reps at 40–60% 1RM with 30–45 seconds rest. |
Alternative Exercises
These exercises target the same primary muscles (Iliopsoas) and can be substituted based on your equipment or variation preferences.
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