Russian twist: turn your chest, not just your hands

A Russian twist is a seated rotation. You sit with your knees bent, lean back a little, and turn your trunk from one side to the other, usually holding a weight in front of your chest. It's a turning exercise: it trains your trunk to rotate. That's the opposite job to the Pallof press in the core workout, which trains your trunk to refuse a twist.

This page covers the setup, the cue that matters most, adding a dumbbell or a ball, what the studies found (there are few), the faults, and the sets.

How to do a Russian twist

1. Sit on the floor with your knees bent and your heels on the floor, about hip width apart.
2. Lean back until you feel your midsection switch on, about halfway between sitting up straight and lying down. Keep your chest tall rather than slumping.
3. Hold your hands together, or a weight, in front of your chest, elbows bent.
4. Turn your chest to one side, taking your hands with it, until your hands are beside your hip.
5. Come back through the middle and turn to the other side. One turn each way is one rep.
6. Breathe out as you turn, and keep the pace slow enough that you stop each turn rather than swing through it.

The cue that matters: turn your chest, not your hands

The easy way to cheat a Russian twist is to swing your arms and leave your trunk where it is. Your shoulders can add a lot to a turn. In 24 elite athletes, 7 men and 17 women, a seated trunk rotation measured with a bar resting on the shoulders came out larger than with the arms crossed, about 58 against 49 degrees to the right and 56 against 48 to the left. The authors put the difference down to the shoulder girdle moving too.¹

That study measured how far people could turn, not a Russian twist. The practical point carries over: if your hands travel a long way and your chest doesn't, your arms are doing the twisting. Keep the weight in front of your breastbone, close to your body, and let your chest and the weight turn together. A smaller turn with your ribcage beats a big one with your hands.

With a dumbbell, a ball or a plate

• Body weight first. Hands together at your chest until you can do 10 slow turns each way with your chest tall.
• Then a weight. A light dumbbell held by both ends, a medicine ball or a weight plate, at your chest. Start light; the weight is there to make you turn harder, not to swing.
• Feet up is harder: lift your heels a few inches off the floor and hold them there. Put them down again if your chest starts to slump.
• Slower is harder too: a two-second turn each way, and a pause at each side.

Change one of these at a time, the way you'd add weight to any other lift.

What it trains, and what the studies found

The obliques, the muscles at the sides of your waist, are the ones that turn your trunk, so they do the most obvious work, with the front abs holding the lean. That's anatomy, not a measurement of the Russian twist. The evidence on the Russian twist itself is thin: a PubMed search for this page found no study that tested it by name as its subject. Three studies come closest:

• A twist on a crunch. In 25 healthy people, a trunk curl with a twist, a plain trunk curl, a reverse curl and a v-sit all produced similar activity in the upper front abs. The reverse curl and the v-sit produced the most activity in the external obliques.² Adding a twist to the curl didn't raise upper-ab activity in that study.
• Inside a six-week program. In 36 recreationally active men aged 18 to 35 with no systematic core training, one group trained twice a week for six weeks with moving core exercises, Russian twists among them, and another with holds. Compared with a group that didn't train, both programs changed the back-muscle activation measured during endurance tests, and the holds group also changed the oblique measures. The changes were drops in the activation needed for the same test, which the authors read as better efficiency, and they conclude the holds are a robust alternative to the moving program.³ It measured muscle activity, not strength or size, and Russian twists were one exercise of several.
• Core training as a whole. A 2016 meta-analysis of trained people aged 16 to 44 found that core strength training made the trunk muscles much stronger, with only small-to-medium gains in other measures of fitness and athletic performance, compared with no extra training or regular training alone. The studies were of low quality.⁴

So the Russian twist is one reasonable way to train turning, not one proven to beat the others, and the studies above can't say more than that. This page makes no other claim about it, good or bad.

Russian twist or Pallof press?

They train opposite jobs. The Russian twist turns your trunk; the Pallof press stands you side-on to a cable or a band and asks you not to turn while you press it out. In 12 physically active adults, six men and six women, kneeling was the easiest Pallof press to keep still, and standing with one foot directly in front of the other was harder. It measured how much the pelvis moved, not muscle activity.⁵ The core workout uses the Pallof press for its "stop the twist" slot. If you want a turning exercise as well, add the Russian twist next to it rather than instead of it.

The common faults, and a fix for each

• Swinging the arms. The hands move, the chest doesn't. Hold the weight closer and turn your chest with it.
• Slumping. If your chest caves and your shoulders round forward, sit up a little and take the weight away.
• Speed. Fast twists turn into a swing. Stop each turn at the side.
• Feet up too soon. Keep your heels down until the turns are clean.
• Too much weight. If the weight pulls you round, it's too heavy.
• Twisting through something that hurts. Working hard is fine; a sharp or lasting hurt isn't. Stop, and see a doctor or a physical therapist.

Sets, reps and where it goes

• Two or three sets of 8 to 12 turns each way, stopping with a rep or two left. (How to judge reps left.)
• At the end of a session, after your main lifts, with the rest of your core work.
• Next to the core block, not in place of it: plank, Pallof press, carry and crunch, then the twist if you want it. A hollow body hold pairs with it as the still exercise.
• Progress one thing at a time: more reps, then a weight, then feet up. (Progressive overload covers the options.)

If you'd rather not plan it alone

A Russian twist takes two minutes to learn; fitting core work into a week that already holds squats, presses and rows is the part a page can't do. Coaching is the version where your workouts are built around the days you actually have, and a weekly call looks at the week you just had and rebuilds the next one. Coaching to build muscle explains how that works, and here's how to apply. Otherwise: at the end of your next session, do two slow sets of ten turns each way with your hands at your chest, and watch whether your chest turns as far as your hands.