Lying Leg Raise (Modified)
- Músculo objetivo
- Iliopsoas, Rectus Abdominis
- Músculos sinergistas
- Quadriceps, Sartorius
- Equipamiento
- Body weight
- Parte del cuerpo
- Hips
- Tipo
- Strength
The lying leg raise (modified) is a bodyweight strength exercise that primarily targets the iliopsoas and rectus abdominis, with the quadriceps and sartorius contributing to leg control throughout the movement. The modified setup reduces lumbar stress compared to a standard leg raise, making it a practical choice for building hip flexor and lower-ab strength when full range is not yet accessible.
Cómo hacer el Lying Leg Raise (Modified)
- 1Lie flat on your back on a mat with your legs extended and your arms at your sides, palms facing down.
- 2Place your hands under your glutes or the small of your back to support the lumbar curve and reduce lower-back strain.
- 3Bend your knees to roughly 90 degrees, keeping your feet together and hovering them a few inches off the floor.
- 4Brace your core by drawing your navel toward your spine and pressing your lower back lightly into your hands.
- 5Raise your bent legs until your thighs are perpendicular to the floor, leading with your hips rather than swinging.
- 6Pause at the top for a moment with your abs fully contracted.
- 7Lower your legs slowly back toward the starting position, stopping just before your feet touch the floor.
- 8Complete all reps without letting your lower back arch away from your hands.
Consejos de técnica
- Keep a slight bend in the knees throughout the movement to reduce stress on the hip flexors and maintain control.
- Exhale as you raise your legs and inhale on the way down to maintain intra-abdominal pressure.
- Move at a deliberate pace on the descent — the lowering phase builds as much strength as the lift.
- If your lower back lifts away from your hands, reduce the range of motion until your core is strong enough to control the full arc.
- Focus on initiating the movement from the hips, not from swinging the legs or using momentum.
Errores comunes
- Letting the lower back arch off the floor during the descent, which removes core bracing and transfers load to the lumbar spine rather than the target muscles.
- Using a swinging or jerking motion to lift the legs, which relies on momentum rather than the iliopsoas and rectus abdominis and reduces training stimulus.
- Holding the breath throughout the set, which increases spinal compression and reduces core stability.
- Lowering the legs too quickly so they tap the floor and bounce, removing tension from the abs and hip flexors between reps.
- Pulling the chin forward and straining the neck, which indicates the core is not engaged and can cause discomfort unrelated to the target muscles.
Preguntas frecuentes
What muscles does the lying leg raise (modified) work?
The primary muscles are the iliopsoas, which drives hip flexion, and the rectus abdominis, which stabilizes the pelvis. The quadriceps and sartorius assist in controlling the legs throughout the movement.
How is the modified version different from a standard lying leg raise?
The modified version uses bent knees rather than straight legs. Bending the knees shortens the lever arm, which reduces the load on the hip flexors and lower back, making the movement more accessible and easier to perform with proper lumbar control.
Is the lying leg raise (modified) suitable for people with lower-back pain?
The bent-knee modification lowers the mechanical demand on the lumbar spine compared to straight-leg raises, and placing your hands under your lower back provides additional support. That said, if you have an existing back condition, consult a healthcare professional before adding this exercise.
How many sets and reps should I do?
Three sets of 10 to 15 controlled reps is a reasonable starting point. Prioritize a slow, deliberate tempo and consistent core bracing over chasing high rep counts.
When should I progress from the modified to the standard lying leg raise?
Progress when you can complete three sets of 15 reps with bent knees while keeping your lower back flat against your hands throughout every rep. At that point your hip flexors and core are strong enough to handle the longer straight-leg lever.
