Weighted Russian Twist (Legs Up)

Weighted Russian Twist (Legs Up) Exercise Description

The Weighted Russian Twist (legs up) is a seated trunk-rotation exercise performed in a V-sit position while holding external resistance (e.g., dumbbell, plate, or medicine ball). It emphasizes the external and internal obliques and rectus abdominis, with the transverse abdominis and deep core musculature providing bracing and spinal stability. Elevating the legs increases the demand on the hip flexors to maintain the position and challenges lumbopelvic control. The goal is to rotate primarily through the thoracic spine while keeping a neutral, elongated lumbar position and steady pelvis. Keeping the weight close to the body and moving with control helps minimize momentum and focus the work on the trunk. This variation trains rotational control and anti-rotation stability as you resist unwanted movement at the low back.

Muscle Groups: Abs, Core, Obliques, Waist
Target Muscles: External Obliques, Internal Obliques, Rectus Abdominis
Stabilizing Muscles: Iliacus, Multifidus, Psoas Major, Quadratus Lumborum, Transversus Abdominis
Body Area: Upper Body
Body Parts: Core, Torso
Body Surface: Front, Side
Body Symmetry: Other
Equipment: Weighted
Exercise Patterns: Other
Exercise Type: Strength
Functional Grouping: Trunk Flexors, Trunk Lateral Flexors, Trunk Rotators
Joint Involvement: Other
Muscle Location: Deep Side Abs, Side Abs, Stomach
Movement Direction: Rotational
Muscle Position: Anterior, Lateral
Gender: Male

How To Do The Weighted Russian Twist (Legs Up) Exercise

‘- Sit on the floor, hold a weight at your chest, and plant your sit bones evenly.
– Lean back slightly to a strong, neutral spine (chest open, ribs stacked over pelvis).
– Lift both feet so shins are parallel to the floor; squeeze knees/ankles together.
– Brace the abdominal wall 360°; keep shoulders down and gently retracted.
– Keep the weight close to your torso with soft elbows (don’t lock); wrists neutral.
– Rotate the ribcage and shoulders as one unit toward one side; pelvis and legs stay quiet.
– Move only through a comfortable range that maintains a long spine and steady pelvis.
– Return through center under control and rotate to the opposite side.
– Breathe: exhale as you rotate, inhale as you pass through center.
– Keep neck neutral (gaze forward); avoid rounding the low back or touching the weight to the floor.
– If balance wavers, bring the weight closer to the chest and slow the rotation.

Weighted Russian Twist (Legs Up) Tips

‘- Plant your sit bones evenly on the floor before you lean back.
– Lean back only slightly, keeping a strong neutral spine with chest open and ribs stacked over the pelvis.
– Lift both feet so shins stay parallel to the floor and gently squeeze your knees and ankles together.
– Brace your abdominal wall 360° while keeping your shoulders down and gently retracted.
– Hold the weight close to your torso with soft (unlocked) elbows and neutral wrists.
– Rotate your ribcage and shoulders together as one unit while keeping your pelvis and legs quiet.
– Use only a comfortable rotation range that lets you maintain a long spine and steady pelvis.
– Move back through center under control each time rather than snapping or swinging.
– Coordinate breathing: exhale as you rotate, inhale as you pass through the center.
– Keep your neck neutral with your gaze forward, and avoid rounding your low back or touching the weight to the floor; if balance wavers, bring the weight closer to your chest and slow the rotation.

Weighted Russian Twist (Legs Up) Beginner Introduction

The Weighted Russian Twist (legs up) is a floor-based core exercise that combines a compact V-style seat with controlled torso rotation. The person sits, leans back slightly, lifts both legs so they hover off the ground, and holds a weight close to the chest while turning the upper body from side to side. This position challenges balance and coordination while the movement targets the abs, side abs, and deep core muscles around the spine.

With the legs raised, the hip flexors work harder to keep the lower body suspended, and the midsection has to work as a unit to stop the lower back and hips from swinging around. The twist is centered higher up through the ribcage and upper back, while the lower spine stays long and steady. Keeping the load near the torso and rotating smoothly helps limit momentum, so the trunk muscles handle most of the effort. Overall, this variation emphasizes both controlled rotation and the ability to resist twisting through the lower back.