Seated Diagonal Knee Raise On Bench
Seated Diagonal Knee Raise On Bench Exercise Description
The Seated Diagonal Knee Raise on Bench is a bodyweight core exercise that combines hip flexion with controlled trunk flexion to train the anterior core. Primary musculature includes the rectus abdominis and the external/internal obliques; the hip flexors (iliopsoas, rectus femoris) assist in raising the thighs, while the transverse abdominis contributes to trunk stiffness. Drawing the knees toward one shoulder on each repetition adds a diagonal challenge that increases oblique demand through rotational control while you keep the torso stable. The focus is a smooth posterior pelvic tilt (pelvis curls toward the ribcage) rather than arching through the low back. Expect a small, controlled range with steady breathing and minimal upper-body motion for the best technique carryover.
- Muscle Groups: Abs, Core, Obliques, Waist
- Target Muscles: External Obliques, Internal Obliques, Rectus Abdominis
- Assisting Muscles: Iliacus, Psoas Major, Rectus Femoris
- Stabilizing Muscles: Transversus Abdominis
- Body Area: Upper Body
- Body Parts: Core, Torso
- Body Surface: Front, Side
- Body Symmetry: Bilateral
- Equipment: Bench, Bodyweight
- Exercise Patterns: Other
- Exercise Type: Strength
- Functional Grouping: Trunk Flexors, Trunk Lateral Flexors, Trunk Rotators
- Joint Involvement: Multi-joint
- Muscle Location: Deep Side Abs, Side Abs, Stomach
- Movement Direction: Other
- Muscle Position: Anterior, Lateral
- Gender: Male
How To Do The Seated Diagonal Knee Raise On Bench Exercise
‘- Sit near the front edge of a flat bench; lightly grip the bench beside your hips.
– Set shoulders down and back; chest tall; head and neck in line.
– Lean back slightly while bracing your abdomen; gently posteriorly tilt the pelvis to “tuck” the tailbone.
– Lift both feet an inch off the floor, knees together, shins roughly parallel.
– Exhale as you draw both knees diagonally toward one side of your chest/shoulder, curling the pelvis toward the ribs.
– Keep the torso quiet (no swinging), elbows softly bent but not pulling.
– Briefly pause under control without shrugging or jutting the chin.
– Inhale as you lower the legs along the same path to the start, maintaining the pelvic tuck.
– Alternate sides each rep, moving through a comfortable, pain‑free range.
– Avoid arching the low back, rocking the bench, pulling with the arms, or letting the shoulders creep toward the ears.
Seated Diagonal Knee Raise On Bench Tips
‘- Sit near the front edge of the bench and lightly grip beside your hips, rather than gripping hard or sitting too far back.
– Keep shoulders down and back with a tall chest and your head and neck in line.
– Lean back only slightly and brace your abdomen before you start moving.
– Gently tuck your tailbone into a posterior pelvic tilt and keep that “tuck” throughout the set.
– Lift both feet just an inch off the floor with knees together and shins roughly parallel.
– Exhale as you draw your knees diagonally toward one side of your chest/shoulder, focusing on curling the pelvis toward the ribs.
– Keep the torso quiet with no swinging, and let the elbows stay softly bent without pulling with the arms.
– Briefly pause at the top under control, avoiding shoulder shrugging or jutting the chin forward.
– Inhale as you lower your legs along the same diagonal path back to the start, maintaining the pelvic tuck.
– Alternate sides each rep, staying in a comfortable, pain‑free range and avoiding low‑back arching, bench rocking, or letting the shoulders creep toward the ears.
Seated Diagonal Knee Raise On Bench Beginner Introduction
The Seated Diagonal Knee Raise on Bench is a bench-based, bodyweight core move that blends a knee lift with a subtle curl of the midsection. It centers on the abs and side abs, with strong help from the hip flexors and deep abs as the legs rise. Each repetition sends the knees toward one side of the upper body, bringing in a diagonal pattern that challenges rotational control while the upper torso stays relatively steady.
Rather than a big swing, the motion stays compact and deliberate, with the pelvis gently rolling so the tailbone tucks and the lower back remains supported. The legs travel through a modest range as they lift and lower, alternating sides to share the work across the front and sides of the waist. Breathing stays calm and regular, and the arms primarily offer light support on the bench instead of driving the movement. This creates a controlled, ab-focused exercise that emphasizes stability, precision, and smooth coordination between the hips and trunk.