Exercise guide · evidence-graded

Russian Twist

The Russian twist is a seated core exercise in which you lean back into a V position and turn your upper body from side to side, with or without a weight held in your hands. It works the obliques as the main rotators, with the front of the abdomen and the hip flexors holding the leaned-back position.

Also called: Seated Russian Twist, Russian Twist Sit-Up, Seated Trunk Twist, V-Sit Twist · Equipment: bodyweight · Pattern: isolation

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How to do it

Step by step

Sit on the floor with your knees bent and your heels on the ground about hip-width apart.
Lean your upper body back to roughly 45° from the floor, balancing just behind your sit bones. Keep your chest lifted and your back long rather than slumped.
Bring your hands together in front of your chest, or hold a light plate or ball there with your elbows slightly bent.
Brace your trunk and turn your ribs and shoulders to one side under control, letting your hands travel with your chest. Keep your knees still and pointing forward.
Turn only as far as you can while keeping your chest lifted, then pause briefly.
Rotate back through the middle and turn to the other side at the same steady pace.
Count each turn to one side as one rep, or each left-and-right pair as one rep, and keep the count the same from set to set.
After the last rep, return to the middle, sit upright and place any weight on the floor beside you.

Coaching cues

Turn from the ribs, knees stay still
Chest tall, back long
Slow hands, pause at each side
Turn only as far as you can control
Heels on the floor
Breathe out as you turn

In VALDA, these cues are one tap away on the exercise while you train.

Muscles worked

What it trains

Muscle	Role	Evidence
Obliques (internal/external): external	Prime mover	C
Obliques (internal/external): internal	Prime mover	C
Rectus abdominis	Secondary	C
Hip flexors	Stabiliser	C
Transverse abdominis	Stabiliser	D
Quadratus lumborum	Stabiliser	C
Erector spinae	Stabiliser	D

Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.

Common faults

What goes wrong, and the fix

Whipping side to side with momentum

Fix: Slow the turn and pause for a moment at each side.

Slumped, rounded back

Fix: Lift your chest and keep your back long before each turn.

Knees swaying with the turn

Fix: Keep your knees still and pointing forward while your chest turns.

Tapping the floor at full stretch

Fix: Turn only as far as your chest stays lifted.

Feet raised to make it harder

Fix: Keep your heels on the floor unless the harder hold is the aim.

Weight too heavy to control

Fix: Use a weight you can turn and pause with at every rep.

Programming

What the research says

General fitnessEndurance

Reps and load — Research on the repetition continuum finds lighter loads with higher reps favour local muscular endurance, which is how the Russian twist is most often used. Common practice is sets of about 10–20 slow turns per side, bodyweight or with a light plate or ball.
Effort — Studies show taking sets to true failure adds only a trivial-to-small growth benefit over finishing a little short, and many lifters end twist sets while each turn is still controlled.
Tempo — Research finds muscle growth is similar across rep durations from about half a second to eight seconds. A slow turn with a pause at each side is common coaching practice for this movement.
Oblique growth — There is no direct research on the Russian twist and muscle growth. EMG studies of rotation effort show the obliques as the most active trunk muscles, and activity is not growth.
Placement — It is commonly done near the end of a session as part of a core block, alongside side planks, anti-rotation presses and back extensions.

Alternatives · VALDA FLEX

Swap it mid-workout

With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.

Log the russian twist in VALDA, with these cues one tap away while you train and your history for it in one place.

General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.